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64COVER STORY

A HANDS-OFF APPROACH TO RESIDENTIAL FAUCETS

It’s rare to hear plumbers mentioned in the same sentence as politicians, but the Honourable Don Plett, Senator for Landmark, Man. is one of those exceptions. The former owner of Landmark Mechanical brings the unique combination of a lifetime of experience in navigating the plumbing and heating industry as well as Canadian politics. Andrew Snook

42PLUMBING

In recent months, plumbing manufacturers have set their sights on hands-free faucet technology to appeal to health-conscious homeowners. Denise Deveau

GETTING STARTED ON AIR CONDITIONING SEASON

28HVAC/R

ΔT

High on the

94HYDRONICS

With the advent of modulating, condensing (mod/con) boilers, does the typical design philosophy of a 20°F ΔT make sense anymore? Eric Riml

There’s a whole host of things that can keep a system from performing in top form, and a pre-season service call can help identify and fix them before the heat of the summer hits. Carol Fey

66MCEE 2013

Thousands of visitors looking for the latest technologies in the plumbing, air conditioning, heating, hydronics and refrigeration trades are expected to converge on Place Bonaventure in Montreal for the 2013 edition of the Mecanex/Climatex/Electricite/Eclairage (MCEE) show.

On the cover: A plumber by trade with a lifelong passion for politics, the Honourable Don Plett, Senator for Landmark, Man., brings a unique perspective to the upper chamber of Parliament. Photo: Courtesy of the Office of Senator Donald Neil Plett.

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F E AT U R E S 34HYDRONICS

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Pick a PEX, but not just any PEX Eric Riml

52Variable speed pump control Which is better, ΔT or ΔP? Well, it depends. Rodney D. M. Brandon

38REFRIGERATION

Testing systems to maintain charge Gino DiFebo

46TOOL TIP

DELTA T DELTA P

Drilling the right holes

50FIND THE FIX 76PIPING

Powering through pipe threading Peter Klugman

MATCHING POWER TO DEMAND (AND COMFORT)

98ECM MOTORS

Whether you call it a DC motor or a variable-speed motor, ECM technology has been around long enough to know that it uses less electricity, which equates to savings for your customers. Matthew Reid

80COMMERCIAL CONTROLS

Case study: Saving energy at CAS Toronto Andrew Snook

86ROAD WARRIOR: Jimmy Ries Adam Freill

88EDUCATION

Literacy in the mechanical world Carol Fey

92GUEST COLUMN The next 50 years Kevin Gill

108HYDRONICS

IAQ and the comfort equation Nick Pellegrino

114HVAC/R

Doubling up for savings Denise Deveau

102COMMERCIAL WATER HEATERS Emergency repairs and service jobs happen all the time in this business, especially during busy periods. Often times these sorts of calls result from older equipment, or units that have not been serviced regularly, and either of those scenarios spell opportunity for contractors. Paul McDonald

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D E P A R T M E NT S 10From the editor’s desk 12News 22Profile: Ross Robinson 120The Info Page 122Calendar 126By the numbers

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S P E C I A L I S T S 24

56 P R O D U C T S 26,112Hydronics 58

32A/C Products 36,106Plumbing 84,118HVAC/R 117Stuff you need

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HYDRONICS Let’s make-up Bob “Hot Rod” Rohr If you want to start a lively discussion amongst a bunch of hydr onic installers bring up the subject of auto-fill valves. HIGH-PERFORMANCE HVAC Heat Pumps: Advances in air-source technology Gord Cooke There are important industry changes that should have HVAC professionals thinking about heat pumps. MARKETING Getting ahead by getting into real estate Doug MacMillan HVAC contractors can help real estate agents convince their clients that switching an old furnace can sell a home. ASK ROGER Taking a bigger view of the numbers Roger Grochmal A look into the figures for shipments of furnaces and air conditioners over the past 25 to 30 years tells an inter esting story. REFRIGERATION Keeping systems up and running Phil Boudreau Continuing the discussion on various system conditions and the possible causes that could result in each problematic condition.

124 WORLD VIEW Aim to please Jeff Patchell The man cave craze is spreading the world over, and urinals are a great addition to any hideaway.

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FROM Content Media Group Inc. 19 – 1525 Cornwall Road Oakville, ON L6J 0B2 CANADA Tel: 905.465.2919 Fax: 905.465.2913 www.mechanicalbusiness.com March/April 2013 Issue Published 6 times per year. Editor: Adam Freill, ext. 224 adam.freill@mechanicalbusiness.com Associate Editor/Web Editor: Andrew Snook, ext. 225 andrew.snook@mechanicalbusiness.com National Accounts Manager: Laura Goodwin, ext. 221 laura.goodwin@mechanicalbusiness.com Controller: Liz Mills liz.mills@mechanicalbusiness.com Art Direction: JJM Graphic Ltd. davem@jjmgraphic.com Circulation Manager: Shila Naik (905) 272-4175 shila.naik@mechanicalbusiness.com Publisher: Bruce Meacock, ext. 222 bruce.meacock@mechanicalbusiness.com PM:41536047 ISSN 1916-0674 MB (Print) ISSN 1906-0682 MB (Online)

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For any of you who made it down to Visiting MCEE in Dallas, you know how much energy was Montreal? on that show floor. From record-setting attendance for a southwest edition of the Please drop by our booth and say show (more than 51,000 attendees), to hello. We look forward to seeing you at Booth #134. packed booths and aisles that were tough to get through, and tons of new products, there was far more than could be taken in over the course of just a few days. Hopefully that’s a sign that the industry is ready for some good news and positivity, especially in the U.S. since they influence so much of the consumer sentiment in North America. We’ve been nicely insulated here in Canada. Sure, things have not been flying the way they were a few years back, but we are coming off a decent year in the construction market, whether we will permit ourselves to admit that or not. According to Statistics Canada, building permits hit a value of $80.5 billion in 2012. That’s up nine per cent from 2011 and surpassed the peak of $74.4 billion reached in 2007 – and yes, that is before the recession hit. On the renovation front, growth is slowing, but spending is still up. Scotiabank’s Industry Trends report suggests, “Many Canadian households will continue to take advantage of historically low borrowing costs to renovate their homes.” And spending was up three per cent in 2012. While we are coming off of some good news on those fronts, the challenge will be to maintain the momentum in light of ever-challenging times. Many analysts are calling for 2013 to be a softer year, but don’t expect the bottom to drop out the way it did in 2007 and 2008. So how do you keep sharp and ready to have another successful year? Well, a trade show or seminar is a good option in my books. Where else can you check out new product solutions and possibly pick the brain of an expert or two, all in a single afternoon? Sounds like time well spent to me. Until next time,

Adam Freill, Editor

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DESK

Having returned from the AHR Expo in Dallas just a few weeks prior to the production of this current magazine, and getting some really positive feedback from show organizers of the upcoming MCEE show in Montreal (see our show guide that starts on page 66), I can’t help but look forward to the trip out to Quebec.

From time to time, Content Media Group Inc. makes subscribers’ names available to reputable companies whose products or services may be of interest to readers. If you would like your name excluded from these mailings, please notify the publisher.

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EDITOR’S

It’s showtime!

Notice: Mechanical Business is published for owners, managers and decision makers with mechanical contracting firms and the sector's supply chain partners in Canada. While every effort is made to ensure the accuracy of the information, Mechanical Business, Content Media Group Inc., its staff, directors, officers and shareholders (‘The Publisher’) assume no liability, obligation or responsibility for advertised claims, for errors and/or omissions, or for the results obtained from the use of this information. Manufacturers’ instructions take precedence over published editorial. The publisher reserves the right to publish a printed correction in a subsequent issue for editorial errors, omissions and oversights. Subscriptions are available for $90 plus taxes in Canada and the U.S. Single copies are $15.00. Outside Canada and the U.S., the rates are $150.00 (annual) and $25.00 (single copy).

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HRAI gone Wildrose in Alberta Members of HRAI recently met with Jason Hale, Energy Critic for the Alberta Official Opposition (Wildrose Party), in an effort to resolve issues related to the relationship between ATCO Gas/Electric and Direct Energy. HRAI stated that the relationship potentially transfers marketing benefits from the regulated utility to Direct Energy, which competes with HVAC/R contractors, as well as natural gas and electricity commodity retailers. HRAI also met with City of Calgary Coun. Brian Pincott and expressed concerns related to the activities of the city’s energy utility EnMax, which has expanded into the HVAC business over the past decade. Pincott acknowledged HRAI’s concerns and promised to investigate potential solutions. hrai.ca

Storfer and co. buy Toronto wholesaler On March 1, an ownership group led by Michael Storfer acquired the assets of Fulford Supply Ltd. The ownership group consists of a number of industry people who have worked with Storfer over the past two decades. Fulford Supply has operated in Toronto (GTA) for the past 40 years with a specific emphasis on hydronic and plumbing supplies. The new venture will focus on immediately building a comprehensive branch network in the GTA to provide local contractors additional inventory, logistic and information support for their businesses. Fulford Supply is located at 55 Research Road in Toronto, and can be reached at 416-423-4885. fulfordsupply.com

CIPH to celebrate milestone in Halifax CIPH’s 80th anniversary as a national not-for-profit trade organization took place on Feb. 8, 2013. Since its incorporation in 1933, CIPH has grown to represent more than 260 companies that employ 20,000 employees across nine regions, with annual sales exceeding $5 billion. The institute will celebrate the milestone at its 2013 Annual Business Conference themed, “Pathways to Relevance,” which will take place in Halifax from June 16 to 18, 2013.

MCA Hamilton students win merit award MCA Hamilton’s student chapter was one of six teams presented with a certificate of merit at the Mechanical Contractors Association of America’s Student Chapter Competition. The project proposal was for a 50,000 sq. ft. building, housing NASA's Space Exploration Center in Florida. mcahamilton.org nasa.gov

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Remember kitchen carpet? Yeah, us too... Some trends stick around while others thankfully fall by the wayside

If you turned on your tap Happy Valentines day everyone. I'm getting my wife and nothing happened, what would you do for a new Delta stainless steel water? kitchen faucet. I know, romance is in the air! Feb. 1, 2013 Feb. 14, 2013

Feb. 25, 2013

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I love it when homeowners cry during a reveal!! (It's nice when they're happy too, I suppose.) Feb. 15, 2013

Looking for efficiency in Quebec The Quebec Ministry of Natural Resources office of Efficiency and Energy Innovation is offering the Rénoclimat incentive program aimed at assisting Quebec residents who would like to reduce energy consumption through efficient renovations. Eligible homeowners need to engage an approved energy efficiency advisor for an energy evaluation prior to the start of any retrofit work, and the incentives are based on increasing the EnerGuide rating of the home by one or more points. A follow-up assessment is used to confirm the improvements. Those eligible can receive reduced rates for the assessments, and incentive amounts vary based on the scope of the renovation being conducted. For example, the addition of an HRV may be eligible for a $490 grant, while geothermal incentives can be as high as $5,365. The program is scheduled to run until December 2015. efficaciteenergetique.mrnf.gouv.qc.ca

Lochinvar product showcase hits the road Lochinvar’s product showcase truck will be travelling across Canada and the continental U.S. through 2013, offering a firsthand look at the latest innovations in high-efficiency water heating. Contact your local reps to find out when the tour will be coming to your neighbourhood. lochinvar.com

Southwest record set Apparently things are bigger in Texas. That’s what organizers of the 65th AHR Expo found out. The event, held at the end of January in Dallas, Texas, established a new benchmark for a southwest exposition venue as more than 51,000 attendees filled the aisles of the Dallas Convention Center to see the latest products and technologies on display from 1,951 exhibiting companies. “We were very pleased with the attendance and the enthusiasm on the show floor,” said Clay Stevens, president of International Exposition Company, the firm that produces and manages the AHR Expo. “The aisles were packed for almost all three days of the show.” The 2014 edition of the show is scheduled for January 21 to 23 in New York City. ahrexpo.com

Ford’s David Shuttleworth discusses the 2014 vehicle lineup.

Ford takes “Transit” to auto show Small business owners and members of the trade press got a chance to check out Ford Motor Company of Canada’s all-new, full-sized 2014 Transit commercial van prior to the opening of the 40th anniversary of the Canadian International AutoShow, held from February 15 to 24 at the Metro Toronto Convention Centre. The company also presented its all-new compact 2014 Transit Connect commercial van.

HRAI submits revised ratios to OCOT HRAI have submitted revised journeyperson-to-apprentice ratios to the Ontario College of Trades (OCOT) for the following trades: Refrigeration and Air Conditioning Systems Mechanic (313A); Residential Air Conditioning Systems Mechanic (313D); Sheet Metal Worker (308A); and Residential (Low Rise) Sheet Metal Installer (308R). A ratio of 1:1 across the board was recommended for the refrigeration, air conditioning and sheet metal trades. Ratio review submissions can be viewed on the OCOT website. collegeoftrades.ca hrai.ca

ford.ca

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KBIS & IBS to co-locate The National Association of Home Builders (NAHB) and the National Kitchen & Bath Association (NKBA) have agreed to co-locate the International Builders’ Show (IBS) and the Kitchen & Bath Industry Show (KBIS) in Las Vegas National Association of Home Builders starting in 2014. The two events chairman of the board Barry Rutenberg will be separate shows during the (middle) announces the agreement to colocate the International Builders' Show (IBS) new Design and Construction and the Kitchen & Bath Industry Show Week, which is expected to draw (KBIS) in Las Vegas starting in February 2014, alongside Lynne Prat (left), chair of more than 75,000 attendees and the NAHB Convention and Meetings over 2,000 exhibiting brands. The Committee and 2013 NKBA president John K. Morgan (right). inaugural Design and Construction Week will take place from Feb. 4 to 6, 2014 at the Las Vegas Convention Center. nahb.org nkba.org

RSES to educate without borders in Niagara Refrigeration Service Engineers Society Canada (RSES) will host its 74th Education Conference and AGM at the Hilton Hotel & Suites Fallsview Casino Resort in Niagara Falls, Ont. from April 24 to 27, 2013. The theme for this year’s conference is “Education Without Borders,” which will feature presentations by Andre Patenaude (Emerson), Brenda Mortson (Lennox), Garth Denison (RSES), Paul Appler (Cliplight), Phil Boudreau (Blitzer), Rob Robertson (LG Commercial) and Vince Bagetta (Noble). The trade show and exhibition will take place from 2 to 8 p.m. on April 26. For more information, contact Nick Reggi at dreggi@cogeco.ca or call 905-842-9199. rsescanada.com

For more information visit desco.ca or speak to your Desco Sales Representative toda y!

Thursday, May 2nd, 2013 Bingeman’s Park Kitchener, ON 4:00pm - 10:00pm 14

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B.C. ministry funds new equipment for KPU trades campus The Ministry of Advanced Education, Innovation and Technology recently invested $733,006 in Kwantlen Polytechnic University (KPU) for the purpose of purchasing equipment for its Cloverdale trades campus. KPU has used the funding to obtain various pieces of equipment, including: a geothermal training system; a LabVolt electromechanical trainer; submerged arc welding equipment, and more.

The Forane P/T Calculator App is a free download designed to allow users to input pressure or temperature readings and receive all corresponding values. It also offers calculation for subcooling and superheat values, and descriptions and chemical properties of Forane brand and generic refrigerants. arkema-americas.com

P and T conversions The PT Pro from Emerson Climate Technologies offers users the ability to perform pressure and temperature conversions from an Android, iPhone or BlackBerry. The free download allows users to choose a refrigerant, enter a temperature (C or F) and calculate a saturated pressure (in Bar or Psig), or, input a pressure and check its saturated temperature. emersonclimate.com

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Kennedy honoured by franchise association

A jubilant celebration

In February, Mary Kennedy Thompson, president of Mr. Rooter, was presented with the Bonnie LeVine award for women in franchising from the International Franchise Association. The award recognizes women who serve as industry role models. During her six-year tenure at the helm of Mr. Rooter, the company’s number of franchise units has increased by 39 per cent, and the franchise has been distinguished with numerous national awards. Here in Canada, 12 new sites have been opened in that time, and sales have increased by $7.8 million.

Stan Parzygnat (second from left) has been awarded a Queen’s Diamond Jubilee medal for his contributions to the St. Catharines General Hospital Foundation. The president of Sundawn Integrated Systems was recognized for his philanthropic leadership as the presenting sponsor of the SCGH Foundation Annual Golf Classic, as well as his additional financial support and role in building awareness for the needs of the hospital. Sandra Sabo (COO, SCGH Foundation); Rick Dykstra (MP St. Catharines) and Matt Harris (general manager, Sundawn) came out for the celebration.

mrrooter.com

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Aquatherm makes Forbes Top 100 For the second straight year, Aquatherm was named to the Forbes Top 100 list of America’s Most Promising Companies. Aquatherm took the No. 97 spot in 2013 after debuting on the list at the No. 76 spot in 2012.

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WSIB subject matter expert for mandatory coverage and e-services, Ryan Connelly (in photo), discussed recent changes to mandatory coverage for independent operators, sole proprietors and others working in the construction industry at the HRAI GTA Chapter’s February meeting held in Vaughan, Ont. The new rules came into effect in Ontario this past January. wsib.on.ca hrai.ca

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Redmond Williams awarded for growth Mississauga, Ont.-based Redmond Williams Distribution was awarded the 2012 Outstanding Growth Award from Goodman Manufacturing Company, L.P. for exceptional sales and volume growth supplying Goodman and Amana brand air conditioning and heating products. The award was accepted by Redmond Williams president Chris Redmond and general manager Tony Koopman. goodmanmfg.com redmondwilliams.com

New HVAC brand Ingersoll Rand, the parent corporation of Trane, announced it is introducing a new line of gas furnaces, air conditioners, heat pumps, air handlers and IAQ products under the Ingersoll Rand brand. The products will mainly be residential and will be offered to homeowners in Canada exclusively through Trane HVAC Supply. The new line is expected to be available by late spring. ingersollrand.com trane.com

Danfoss purchases full ownership of Danfoss Turbocor Danfoss recently acquired full ownership of Danfoss Tubocor. The company already had a 50-per-cent owner’s share in Tubocor, which develops, produces and markets high-efficiency variable speed compressors with capacity ranges from 75 to 200 tons per unit. danfoss.com

Aquatherm names Quebec agent Trilex/DisTech group was recently named as Aquatherm’s manufacturer’s representatives for Quebec. Trilex is headquartered in Repentigny, Que., with a branch in Quebec City. They can be reached at 450-582-1184. trilexinc.ca aquatherm.com

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Smart Just Got Smarter. Xylem buys PIMS Group Xylem Inc. purchased PIMS Group, a U.K.-based wastewater services company for approximately $57 million in February. xyleminc.com

Shel-B-Sales opens up in Alberta Sheldon Schiffner and Bill Lowe recently formed Shel-B-Sales Inc., an agent/rep focusing on the Alberta market with additional connections throughout Western Canada. The firm currently represents Wade Drains in Alberta and will be adding additional product lines in the near future. Shel-B-Sales Inc. is located at: P.O. Box 71143, Silver Springs RPO, Calgary, Alta., T3B 5K2, and can be reached at Sheldon@shelbsales.com. wadedrains.ca

NextEnergy signs distribution agreement with Viessmann

The new SMART SYSTEM™ is the most advanced boiler and water heater integrated control on the market today. The new generation of Lochinvar’s SMART SYSTEM™ uses brilliant technology to deliver practical new features that make your job easier. It starts with a NEW larger LCD Screen with Soft Keys and Navigation Dial that give you more information and more control than ever before.

Viessmann has signed an agreement with Elmira, Ont.-based geothermal firm NextEnergy for North American sales support, installation and service for its KWT heat pumps.

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New office for the Canadian Copper & Brass Development Association The Canadian Copper & Brass Development Association have moved to a new office located at 65 Overlea Blvd., Suite 210, Toronto, Ont., M4H 1P1. The CCBDA can be reached at 416-3915599, 1-877-640-0946 or at: library@copperalliance.ca. copperalliance.ca

Titan now with Trane

NEW! Navigation Dial and Soft Keys for ease of control use. NEW! At-a-Glance Color Screen Coding for easy status of normal operation, maintenance required and system lockout identification. NEW! Two Sequencing Options including Lead-Lag and Efficiency Optimized Cascade. NEW! Control up to 3 different setpoint temperatures. NEW! Modbus capable. NEW! Multiple 0-10V inputs and outputs. The new SMART SYSTEM is now standard on our KNIGHT® and KNIGHT XL® Boilers and ARMOR® Water Heaters. Its real brilliance comes from listening to our customers' practical ideas, and using innovative technology to meet them.

Titan Heating and Air Conditioning recently announced that its HVAC products are now available through Trane HVAC Supply. titanhvac.ca

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People in the news www.mechanicalbusiness.com ANDREW CLARK has joined commercial and industrial valve and control company Bonomi North America Inc. as the Canadian sales manager. Andrew brings with him 18 years of experience in the industry. Andrew will be working from the Oakville, Ont. office.

Wolseley Canada recently announced a change in its leadership team, and several adjustments in its 1 2 Plumbing Group. Effective August 1, 2013, senior vicepresident KEITH VANDERVENNET (1) 3 4 is returning to Ferguson, Wolseley’s U.S. operation, in the role of senior vice-president of sales. DARCY 5 6 CURRAN (2) has been named as VanderVennet’s successor. In the company’s Plumbing 7 8 Group, there are now five regions, each managed by a general manager: DAVE PRATT (3) (British Columbia/Northern 10 9 Alberta); KEITH STRACHAN (4) (Southern Alberta/Midwest); CRAIG DUNFORD (5) (Greater Toronto Area); and SEBASTIEN LAFORGE (6) (Quebec). The Ontario/Atlantic region is currently reporting to group vice-president PAUL KENNEDY (7) pending the hiring of a GM for that region. The new structure also includes the following three national roles. CASIAN GLAVCE (8) is the director of sales operations. BARRY MOULSDALE (9) is the director of strategy and development. And TERRY THOMPSON (10) is responsible for branch operations.

M e c h a n i c a l

Ingersoll Rand recently announced a number 3of positions in its HVAC division. BILL DAVIS (1) has been appointed as National Residential HVAC Solutions Leader. IAN MILNE (2) has joined the Residential HVAC Solutions team as Ontario Territory Manager. IAN MCTEER (3) is now serving as technical field services representative in Ontario. SUZANNE 7 ANDERSON-BROWN (4) has been added as inside sales leader for Ontario, with duties that include finance and administration, parts and light commercial product sales, and marketing. RAVINA UPPAL (5) is now the company’s territory manager for B.C. RAY KOEPKE (6) is now the technical field services representative to the B.C. Residential HVAC Solutions team. And TAJ POONI (7) has joined the Western Canada Residential HVAC Solutions team as area parts and supply leader. SIMON DUCHARME has been named key accounts manager for Quebec at Goodman Canada. In more than a decade in the industry, he has progressed from a warehouse position to counter sales and inside sales to this most recent promotion. ANDREW (ANDY) MORROW recently joined HeatLink as product manager. A professional engineer with extensive experience in product development, HVAC, controls and renewable energy sectors, Morrow has over 15 years of experience in the plumbing and HVAC industry.

Trane Canada recently announced that JEFF WEIR has assumed a new role as director for Contracting Solutions Business for Canada.

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SHELDON SCHIFFNER (top left) and BILL LOWE (bottom left) have started Shel-B-Sales Inc., a sales agency in Alberta. Lowe will also carry on his existing duties with BCL Sales Inc.

Barclay Sales recently hired CAROL REIVONEN for its sales team in the Edmonton area. Carol brings more than 25 years of experience to the company, along with strong knowledge of the Edmonton building industry. Zurn Industries recently appointed JIM FESSLER to the position of general manager, Zurn Industries Limited, Canada. A 25-year veteran with the company, Jim will lead the strategic direction and sales efforts of the Canadian operation.

NELSON MECHANICAL DESIGN, INC. Owners: Brian Nelson / Dave Sprague

BUSINESS B BUSI USINE NESS SS ACCELERATION ACC CCEL ELER ERAT ATIO ION N

WEâ&#x20AC;&#x2122;RE LIKINâ&#x20AC;&#x2122; DAIKIN! OUR SALES ARE UP 100%!

SEE THE FULL STORY AT LIKIN-DAIKIN.COM Owners Brian Nelson and David Sprague have doubled their sales since becoming a Daikin AC dealer. The partners started out as a heating and plumbing contractor, but today 75% of their business is Daikin Altherma and Ductless split heat pumps from Daikin AC. â&#x20AC;&#x153;Daikin AC has allowed us to set our dealership apart as the â&#x20AC;&#x2DC;Green Expertsâ&#x20AC;&#x2122;,â&#x20AC;? says Brian. To live up to their mission of offering customers only the best green solutions, NMD offers only the best products to complement their highly engineered DSSOLFDWLRQV 7KH UHVXOWV DUH HIÂżFLHQW FRVW HIIHFWLYH HDV\ WR LQVWDOO 'DLNLQ $& V\VWHPV WKDW SURYLGH LPSURYHG \HDU URXQG FRPIRUW and save their customers money.

Brian and Dave tested all of the major ductless split systems before choosing Daikin AC. Brian notes that Daikin AC ZDV WKH ÂżUVW PDQXIDFWXUHU WR KDYH D JRRG handle on ductless splitit applications and HQJLQHHULQJ 'DLNLQ $& V\VWHPV DUH WRS & V\VWHPV DUH WRS TXDOLW\ YLUWXDOO\ WURXEOH IUHH DQG KDYH WKH IUHH DQG KDYH WKH best warranty in the business. usiness. Dave calls it â&#x20AC;&#x2DC;Daikin Magicâ&#x20AC;&#x2122;. â&#x20AC;&#x153;They consistently c outperform our expectations.â&#x20AC;? ta ations.â&#x20AC;? So whatâ&#x20AC;&#x2122;s the bottom liline ne for the â&#x20AC;&#x2DC;Green Expertsâ&#x20AC;&#x2122;? â&#x20AC;&#x153;If you want to set yourr business apart and increase sales like e we have, position yourself with th the he premiere global brand â&#x20AC;Ś Daikin n AC.â&#x20AC;?

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04.13

Profile Soaring above the clouds in Western Canada

A past-chair of CIPH, Ross Robinson is one of those people in the industry, and in his community, who truly believes in giving back and helping out. Beyond being active in industry associations, Robinson also devotes time to the Western Canada Aviation Museum, the United Way and several other charities. The president of B.A. Robinson, a plumbing, heating, electrical and lighting wholesaler with locations from Kenora, Ont., to Vancouver, B.C., Ross is the second generation in his family to operate the business, but the fourth generation of Robinsons in the lighting business – Thomas Robinson started the family venture into the lighting industry as a chandler in Montreal around 1850.

Q A Q A

How did you get started in the industry? I was building a house in 1978 and after a frustrating look in dusty wholesaler “display areas” I opened up Robinson Waterworks, the precursor to Robinson Bath Centre.

Q A

Ross brought the plumbing side to the electrical and lighting business in the late 1970s as the result of a homebuilding project that left him desiring a clean, open and professional environment in which to plan out the plumbing designs for his home. The company now has over 20 distribution warehouses and showrooms that operate under the trade names B.A. Robinson Co. Ltd., B.A. Express, Robinson Lighting and Bath Centre, Robinson Bath Centre, B.A. Robinson Electrical, and Elegant Bath Gallery. We recently caught up with Ross to talk a bit about the company, as well as about some of the things that keep him active when he’s not in the office.

As a business owner, how have the economics of the past few years affected your operations? You know, the last year has been challenging largely because you can't do anything about pockets of what I call “industry stupidity,” but we still grew our business while converting over to a new enterprise resource planning (ERP) system, so we are doing fine.

Was it a given that you’d be in the family business? I was conscripted into the family business, which at the time was an electrical wholesaler. Today we bring plumbing, hydronic, HVAC, pumps, water works and water products, as well as electrical and lighting products, to the licensed installing trade and showroom consumer.

Q A Q A Q A Q A

Tell us about your involvement in aviation. How did that start? It’s a long story, but have you ever driven through Northern Manitoba as a sales rep? Flying is tons of fun, and it’s even better if you can combine it with work! What’s in the hangar? Separately, two elderly gentlemen pilots asked me to look after their planes, so I have a 1944 Douglas B26 and a 1952 Harvard 4 trainer.

Tell us a bit about 17 Wing Winnipeg. I was asked last year if I would let my name stand for nomination for Hon. Colonel of 17 Wing. It is a real honour to wear the blue.

Is there a motto, or words of wisdom, that you hold close and make use of? A motto: "Perfection is our goal … excellence will get us there."

DID YOU KNOW? • Ross is a pilot with multi-engine land, sea and Instrument Flight Rules (IFR) ratings, and is active in the Western Canadian air show scene. • Ross enjoys cross-country and downhill skiing, as well as spending time at the lake with his family.

BIO Name: Ross Robinson Title: President, B.A. Robinson Co. Ltd. Location: Winnipeg, Man.

BOILER FILL SYSTEMS

By Bob “Hot Rod” Rohr

Let’s

MAKE-UP I

f you want to start a lively discussion amongst a bunch of hydronic installers bring up the subject of auto-fill valves.

THE GREAT DEBATE For as long as I can remember there have been two schools of thought: fill valves should be left in the “off” position; or, fill valves should be left in the “on” position.

AIDING

The argument goes like this: If you leave an autofill valve in the “on” position and a pipe breaks, leaks, or freezes, you could flood a customer’s home or business. And that is a valid concern. I suppose one could argue why even bother installing an auto-fill device on a system if you plan on turning it off once it fills the system? But what I have found is that a new system can purge air for several days or weeks after it is installed. Systems with thousands of feet of PEX, for example, can hide air for weeks. Until the boiler heats up to the highest temperature and flows every zone and loop, you will not rid the system of all the micro-bubbles and entrained air.

is available to take up the void. Therefore, the fill valve is in place to ensure the system stays at the pre-set 12 psi as the air is removed. I suppose a compromise could be to leave the auto-fill on for 30 days, return to the job for a final checkup, and then turn the valve off. Some hydronics pros will turn the fill valve way down with an isolation valve so a trickle of fluid flows, not a five-gpm flow. I suppose this could limit the flood potential as well. Now, I may be dating myself, but be it known that in my 30-plus years in the business I have never flooded a building with an auto-fill left in the “on” position. But I have had no-heat callbacks because the pressure dropped in the system after air expelled and the low pressure cut out prevented the boiler from firing. Nowadays, most of the mod-con boilers have low pressure switches installed on the heat exchangers. In an empty home, that could cause a larger problem if left unchecked – like frozen and burst pipes.

So, when air vents out from a closed loop system, the pressure will drop unless additional fill water

AIR REMOVAL

A good tip is to increase system fill pressure on jobs with a problematic air elimination condition. Increasing the pressure reduces the size of the air bubbles and can aid in pushing them back to the auto air elimination device.

Be sure to install a low water cut-off (LWC) switch if you intend to leave the fill system off. This could prevent a boiler from firing if all the water leaked out. It also provides a set of contacts to tie into a central alarm system to notify someone of a low water condition and possible lock out. And there are some other options. One is to use an auto-fill system with a reservoir tank.

PRESSURE-TEMPERATURE Putting water under pressure increases the boiling temperature. So, by pressurizing a hydronic system it is possible to run temperatures of 212°F (100°C) and not boil the water, or flash to steam. An old-timey industry concept was to run at those elevated temperatures, maybe even as high as 220°F, so you could cut down on the amount of fin tube baseboard a building required. I don’t recommend a high temperature like that. It creates excessive heat loss in the piping, and convection currents across the fin tube increase. That tends to darken the cover of the board from the scorched dust it pulls across the fins. It can also increase expansion noise, as the copper grows in length with temperature increase.

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• Air removal • The pressure-temperature relationship Bob “Hot Rod” Rohr has been a plumbing, radiant heat and solar contractor and installer for 30 years. A long-time columnist and trainer, he is manager of training and education with Caleffi North America. You can reach Hot Rod at bob.rohr@caleffi.com.

WATCH THE

PRESSURE

Ever notice that many hydronic expansion tanks have a label that indicates “pre-charged to 12 psi”? And while that might match some systems, even on those it is not advisable to take the word of the label-making machine. Always check the pre-charge pressure and adjust it to the fill pressure you are working with, whether that’s 12 psi or not.

These are most often used on systems that have glycol mixtures. With a glycol system you do not want to risk diluting the mix percentage by adding fresh water through the auto-fill. The fill system with a reservoir gives you several gallons of reserve to handle any air bleeding. These tank style auto-fill systems usually have a provision for an alarm contact, also. They are well worth the investment for any glycol-filled system, geothermal or solar included. Another option is to take an expansion tank, install a ball valve, fill cock, and auto-fill valve. Pump the tank up to 80 psi or so with the fill fluid. (Note the maximum pressure rating stamped on the tank.) Now you have several gallons of fluid, regulated to 12-psi fill. Connect a washing machine hose to the boiler drain cock for a temporary refill system. One place to consider this temporary fill tank is a solar thermal system that has glycol in it. I have noticed it takes some time to purge the air from solar systems that are piped with the corrugated stainless solar piping. All those grooves tend to hide air bubbles that can take weeks to work their way through. Slow flow rates below four feet per second, which are common with variable speed

controlled solar pumps, add to the air removal challenge. The expansion tank temporary fill system will ensure you don’t air lock your newly installed solar system. So, you can decide for yourself if you want to make up… or break up.

THE BACK STORY OF

PRESSURE

There are a number of good reasons why you pressurize a hydronic system. The most obvious is to lift the water in the system to the highest point in the piping. Knowing that it takes 0.433 pounds per square inch to lift water one foot (some prefer to round this to 0.5 psi), if the piping in a multi-level building were 20 feet above the boiler, 10 psi would be needed to fill the system to the uppermost point. You do not depend on the circulating pump to add this head or lift – it’s the fill pressure that ensures the water is to the uppermost point. It is a good idea to have a bit of positive pressure on any float type auto air vents. Adding two psi of pressure will ensure the float sees some positive pressure. Of course, you want the expansion tank pressure to match the fill pressure. The industry standard has been to pre-set auto-fill valves to 12 psi at the factory. Pressure in the system also ensures you have NPSH (net pump suction head) for the circulator to run without cavitation.

Me chanical

Busine ss

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HYDRONIC Paired indirect tank Weil-McLain Canada’s CWH Companion Water Heater is designed to pair with the company’s WM97+ gas boiler and features an 18.2 gallon, 316L stainless steel tank design; an expanded polypropylene dentand scratch-resistant jacket; programmable setback; and dual sensors for faster reaction time and hot water recovery.

Snow-melt panel Designed for snow-melt systems with a dedicated heat source, such as a boiler or other non-DHW appliance, HeatLink’s SMP375SS snow-melt panel comes equipped with a three-way mixing valve with a DDC motor. The panel operates to a maximum ambient temperature of 49°C and a maximum water temperature of 93°C. It has a galvanized steel backplate and powder-coated steel enclosure.

www. weil-mclain.ca

www. heatlink.ca

Stapler accessories Malco offers two accessories for its form/wood PEX staplers. A stapler weight (FBSNW) adds pressure to staples to ensure that the staples drop into the camber and reduces “bounce back” of the staples. The FBSNS stand keeps the stapler upright between uses, reducing bending and reaching.

www. malcoproducts.com

Geothermal heat exchange system Rehau’s Raugeo ground loop heat exchange system is composed of PEXa pipe, fittings, geothermal manifolds and a horizontal or vertical ground loop heat exchanger. The pipe in the system can sustain temperatures up to 200°F (93°C), making it possible to use the system for thermal heatsink applications.

www. raugeo.com 26

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Boiler system control The Hydronic System Control from CleaverBrooks is a PLC-based boiler sequencing and modulation control. The unit works with condensing, non-condensing, and hybrid applications, and is designed to minimize cycling and optimize boiler operation based on the unique characteristics of each boiler type through independent PID loop control.

www. cleaverbrooks.com B u s i n e s s

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The Fine Art of Radiators Where Innovative Technology is Wedded to Unique Design N PA

RA EL

O I AT

BISQUE COLLECTION

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Steam

For more information or a dealer near you, please call 1-888-829-4901 or visit us online at: www.runtalnorthamerica.com.

Electric

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HVAC/R

B y C ar ol Fey Carol Fey is a technical trainer who has worked as a heating mechanic in Antarctica and has published six books for the HVAC/R industry. She can be reached at carol@carolfey.com, or visit her website, www.carolfey.com.

THE CHECKLIST Whether it is for a system startup or troubleshooting a system that is up and running, an air conditioning checklist is an invaluable tool. It doesn’t matter whether the system is commercial or residential, the risk of working without a checklist is the same — some things could easily be overlooked or forgotten. Think of it as a cheat sheet if you like, but it’s going to save you time, money and frustration. The reality is it’s a tool for avoiding possible callbacks. The checklist can also be a prejob reminder of parts and supplies that are likely to be needed for the start-up. Wondering what to include in the startup checklist? Here’s the one that I use. It might be a good thing to develop one for your own company, or feel free to clip this one and put it on a bulletin board at the shop where technicians can see it.

GETTING A START ON AIR CONDITIONING SEASON W e as an industry tend to think of air conditioning in terms of refrigerant and charge, but there’s a whole host of things that can keep a system from performing in top form, and a pre-season service call can help identify and fix them before the heat of the summer hits.

It is often assumed that air flow is just fine, that ductwork, grilles and registers need no attention because they have been functioning since original installation, and that nothing has changed. But there may be significant problems. Ductwork may have collapsed, or come apart. Or it may have been originally installed with lots of leaks. These leaks can be especially problematic when you are trying to push air conditioning to upper floors. That’s because cold air is heavy and wants to stay as low as possible. If it can leak rather than go up, that is its preference. Cleaning is another important aspect of A/C start-up. No one likes to clean, but every system needs it, every season. Dirty filters mean air flow blockages. Dirty coils cannot exchange heat effectively. Of all the many things to do for a start-up, cleaning is probably the most important. continued on page 30

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■ Replace or clean air filters. ■ Check indoor and outdoor coils and clean if necessary. ■ Clean and check condensate pan lines and/or pump, including check valve. ■ Check condensate pump and/or pan secondary safety switches. ■ Replace belt if needed. ■ Clean blower wheel if necessary. ■ Lubricate motors if applicable. ■ Amp out motors and compressor. ■ Check motor and blower bearings. ■ Check integrity of cabinets and ductwork. ■ Paint accumulator and rusted parts. ■ Be sure all dampers, registers and returns are open. ■ Check relays and contactors. ■ Check electric supply and draw. ■ Check electrical wiring for cracks or chafing. ■ Check electrical connections for tightness. ■ Check pressure switches. ■ Check temperature switches. ■ Check all safeties. ■ Check reversing valve if applicable. ■ Check refrigerant level (pressures and temperatures). ■ Check pressure drop across driers if applicable. ■ Check temperature splits. ■ Clean debris from outdoor unit and advise customer if shrubs are overgrown around unit. ■ Ensure that all panels, grilles and guards are attached. ■ Ensure that all disconnects and switches are on. ■ Make sure that thermostat is set for cooling, and for desired temperature(s). ■ Make sure there are no leaks. ■ Get service ticket signed, collect for any charges, advise customer of any problems, and answer any customer questions.

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RELIABILITY RELIABILITY

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MULTIM ULTIF EATURE FEATURE

L OCAL LOCAL SERVICE S ERVICE

EASY E ASY AVAILABILITY AVAILABILITY

HVAC/R

continued from page 28

A GOOD TIME TO OFFER

EXTRA SERVICE While you are on site to prep the air conditioner for the coming season, take a quick look at accessories such as humidifiers, air cleaners, heat recovery ventilators, or energy recovery ventilators.

IMPROVING ENERGY EFFICIENCY

Offer to “summer-ize” them. It’s quick and easy to close off a humidifier’s “summer switch” so that air conditioning doesn’t flow through it. Check the pads and filters for all the other accessories and if they need replacement it should equate to an additional sale for you — even if the humidifier pad won’t be needed until autumn.

Whether it’s summer or winter, suggestions of ways your customers can improve their energy consumption are always a good idea. If you’re not in the business of doing a complete energy audit, you can at least point out the obvious — missing insulation, lack of weather stripping or cracked windows. These things are usually thought of for winter, but whenever there is a temperature difference between inside and out, leakage costs money – plus, some of these projects are easier to tackle when the weather is a bit less wild.

Air cleaners, of course, are used year round. Changing dirty air cleaner media filters can keep the air conditioning from going off on high limit. If there’s an electronic air cleaner, see if it’s functioning. If it snaps, that’s a sure sign that it needs to be cleaned. A residential unit can usually be washed in a dishwasher. Or, for a fee that makes it worth your time, you could take it to a car wash. If the air cleaner simply isn’t working, offer to repair it. An air cleaner can make all the difference in removing summer allergens.

www.williamshvac.com

Gordon R. Williams provides HVAC solutions that are designed to provide your clients with the best products on the market. Contact us today!

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Toll Free 888.209.0999 www.williamshvac.com email: info@williamshvac.com

• I m p r o v i n g e n e r g y efficien cy • Offer ext r a ser vice

DON’T PITCH THE CHECKLIST JUST YET So you’ve dropped in on your customer, run through your checklist while working on the equipment and the system is left to perform its job as the warm weather approaches. That’s great in theory, but a little farther into the air conditioning season you could find yourself back on a jobsite where the equipment was started up just a month or two earlier. So while the owner is busy saying the system has developed a new problem, or perhaps claiming that it never worked right, the start-up checklist can help to prove what was checked, and can be useful for troubleshooting. Even a seasoned technician can forget steps. And especially as the temperatures get hotter, it gets harder to remember what you have done. The checklist is a friendly, non-judgmental companion that can say, “Did you remember to check the . . . ?”

AND SHOW YOUR WORK A checklist can be used to provide the building owner or homeowner evidence of just how thorough you were. Leave a copy of your checklist with all of the details checked off, and be sure to include a copy in your client’s file, just in case they call back in a few months claiming that the system was not properly checked.

METALBEST

CHIMNEY & VENTING SYSTEMS

Expandable Ex xxpa xpandable pand pa pand dablle eF Fle Fl Flex Flexible lex exible xxib iblle e Gas Ga as V Ve Vent entt Co ent Conne Connector onne ecto ect ec ector to or Model Mode del el EFC t Simple connection between appliance and Tyype B Veent t No elbows required t Expands 1’ to 3’ or 2’ to 5’ t Integraated Draft Hood Connector t Limited Liffet e ime Warranty t 360° F Flexibiliity

Call Customer Service To oday 1.800.26 1.800.263.9308 www.selkirkcorp.com M e c h a n i c a l

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AC Residential inverterdriven systems The iQ Drive FT4BG split-system heat pump and iQ Drive R6GI gas pack from Frigidaire uses inverter technology to allow the HVAC system to modulate from 40 to 118 per cent capacity in a five-stage system. The FT4BG has a 19 SEER and 10 HSPF energy efficiency rating. The R6GI is SEER rated at 20 with an AFUE of 81%. Both products come with an inverter-driven rotary compressor and are available in 2, 3, 4 and 5 ton capacities.

www. frigidairehvac.net

Split system air conditioner The Goodman DSXC18 air conditioner is offered in three models from three to five tons, with efficiency ratings up to 18 SEER. The units operate on R410A refrigerant with a two-stage high efficiency scroll compressor and a two-speed ECM condenser fan motor.

Wall-mounted ductless systems Fujitsu’s Halcyon RLS2H ductless systems are extra-low ambient temperature heat pumps that are available in 9,000, 12,000, and 15,000 BTUH configurations that reach 27.2 SEER. The units can provide heating operation with outdoor temperatures as low as -15°F. Motion sensors note when a room has been vacated, increasing set temperature 4°F when in cooling mode, and reducing it by 8°F when heating.

www fujitsugeneral.com

www. goodmanmfg.com

Residential air conditioner Available in two- to five-ton capacities, the Acclimate split system air conditioner from Luxaire offers efficiency ratings up to 18 SEER. Matching air handlers are available for upflow, downflow, and horizontal left or right applications to provide a complete system. Alternately, add-on coils are available for use with modular air handlers or upflow, downflow, and horizontal furnaces.

www. joinluxaire.com

Two-stage residential system

Duct-free air conditioner The Prestige single zone air conditioner from LG is a high efficiency duct-free split system with a SEER rating of up to 28 for the 9,000 BTUH model and up to 26 for the 12,000 BTUH model. The unit features an optimized four-way swing airflow, allowing for a six-step vertical vane, five-step horizontal louver to disperse air. At its lowest, it sounds in at only 17dB.

www. lg.com 32

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A two-stage air conditioner with dual compressors, the Ultra Series Model 4A7A0 from Ingersoll Rand is available in two- to five-ton sizes with SEER ratings up to 20. The units operate on R410A refrigerant and are compatible with the irLink communicating system.

www. ingersollrandhvac.com

FOR THE THOUSANDS OF JOBS YOU DO, WE’VE GOT ONE. To get you what you need. When you need it. It’s our promise, and we’ve lived and breathed it every day for over 20 years. We know you’re busy, which is why we’ve created an incredibly efficient network to get you back on the job, fast. With a 98% fill-rate commitment, four distribution centres and over 1.5 million square feet of warehouse space, we offer the widest range of in-stock products in the business. Plus, our fleet of 200 delivery trucks and network of 50+ branches means you’re never far from us. Today, we’re uniquely equipped to provide solutions that support the entire lifecycle of a building, from the early stages of a design-build project through to maintenance and renovation. Still, our greatest asset isn’t inventory; it’s our people. They’re the backbone of our operations and the reason we’re able to look after yours. We know your business. It’s our job.

PLUMBING HVAC HYDRONICS INDUSTRIAL FIRE PROTECTION BUILDING MAINTENANCE

noble.ca | 1-800-529-9805

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PIPING

B y E r ic Riml Eric Riml is a certified hydronic designer working in Calgary, Alta. He can be reached at feedback@hotwaterheating.info.

Pick a PEX,

But not just any PEX A ll PEX pipe is made from high-density polyethylene. In the manufacturing process, the molecules are cross-linked, which is what gave rise to the PEX name – polyethylene, cross(X)-linked.

PEX-A The most useful feature of this type of PEX is its ability to hold a “memory” of its original shape, and thus allows kinks in the pipe to be repaired by merely heating the pipe with a heat gun. PEX-A is more elastic than other types, which has led manufacturers to develop full-flow, insert fittings, where the pipe is expanded around the fitting rather than the fitting being fit inside the pipe. This may make fittings harder to install if you’re working in cold conditions.

PEX-B PEX-B is widely available and compatible with many of the generic fitting types on the market, including compression, pushfit and copper crimp rings. It is also performs better in chlorine testing than other PEX types, although all PEX types are vulnerable to high chlorine counts. The pipe can degrade if exposed to high levels of the chemical. Unlike PEX-A, if PEX-B kinks it must be cut and repaired with a fitting. While it is often rated for higher pressure than PEX-A, this property does not really produce any advantage in the field as it would be very rare that PEX of any kind would be used in a high-pressure application that would put this limit to the test.

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How PEX is made PEX comes in three types, each of which is defined by its manufacturing process. Although certain types of PEX can be slightly better in different applications, many contractors use them interchangeably. PEX-A pipe is produced using peroxide using what is known as the “Engel method.” During the manufacturing process, cross-linking is done above the crystal melting point, resulting in more cross-linking and a stronger chemical bond within the pipe. PEX-B is made using a “silane” or “moisture cure” method of cross-linking, where links form after the extrusion process using a chemical catalyst and exposing PEX tubing to water. PEX-B has been manufactured by a large number of companies. PEX-C is manufactured using electronic irradiation, also called "cold" cross-linking. Here, cross-linking of the molecules is done after the process of extrusion by exposing the pipe to an electron radiation beam. This cross-linking is done below the crystal melting point, and results in less uniform cross-linking and weaker bonds. However, it is a more environmentally-friendly process, since it uses fewer chemicals.

HV HVAC AC & HYDRONICS HYDRONIC S

PEX-C PEX-C does have some of the memory properties of PEX-A, although not enough to be used with full-flow fittings. The pipe is more flexible than PEX-B, although it may feel slightly more â&#x20AC;&#x153;plastic-likeâ&#x20AC;? than other PEX types. It brings to the table a lot of â&#x20AC;&#x153;middle groundâ&#x20AC;? attributes, however, since it is fabricated using a more environmentally-friendly manufacturing process it may in fact become a more popular choice in the future.

PEX-AL-PEX This tubing isnâ&#x20AC;&#x2122;t pure PEX, but rather a thin layer of aluminum sandwiched by layers of PEX. It deserves mention because it is commonly used for infloor heating applications. The main advantage of PEX-AL-PEX, aside from its built-in oxygen barrier, is that it retains its shape when bent. If youâ&#x20AC;&#x2122;ve ever faced a quickly-unraveling coil of PEX, you might appreciate the much-less-ornery coil of PEX-AL-PEX. Although it does use aluminum, and costs more to manufacture, the process to make PEX-AL-PEX requires few chemicals, making it one of the most environmentally-friendly ways to make pipe.

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PEX is vulnerable to: â&#x20AC;˘ Becoming brittle from UV (sunlight) exposure. â&#x20AC;˘ Degradation from heavily-chlorinated water. PEX is sold with a coating of anti-oxidant, which must pass 50-year testing equivalents, but the test is only done at room temperature.

â&#x20AC;˘ Increases in kinks, once heated.

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What to avoid when using PEX â&#x20AC;˘

Fittings with zinc levels above 20 per cent in a brass alloy (zinc corrodes more quickly).

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Additional fittings. Fittings are a potential failure point. Use straight runs of pipe whenever possible, without couplings.

M e c h a n i c a l

HYDRONICS | INDUSTRIAL PLUMBING | HVAC PLUMBING HV VAC | HYDRONICS PROTECTION | BUILDING MAINTENANCE MAINTENANCE FIRE PROTECTION

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PLUMBING Stiebel Eltron’s Accelera 300 Heat Pump Water Heater has an 80-gallon storage capacity tank and features a rolling piston pump compressor motor and a wrap-around aluminum condenser. It has an operating temperature range of 42 to 108°F, a power input of 2.2 kW (500w heat pump only) and an air flow rate of 324 CFM.

www. stiebel-eltron-usa.com The Triton pipe fusion system from Watts is designed to improve pipe joining and testing times through the use of radio frequency (RF) electromagnetic technology. The RF electromagnetic technology is designed to eliminate exposed heating elements, adhesives and VOCs.

www. tritonpipefusion.com

Paintings and drawings from ancient Greece show the first known use of showers and showerheads around 300 B.C.

The Mini-Rooter XP from General Pipe Cleaners is designed to clear clogged kitchen, bath and laundry drains. The unit features rollbars, 8” semi-pneumatic wheels, rubber feet for stability and a space-saving fold-down handle that acts as a lifting handle. The variable speed power cable feed enables feeding or retracting at up to 16 feet per minute and adjusts to take 1/2” and 3/8” cables. The inner drum holds up to 75 feet of cable.

www. drainbrain.com 36

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INDUSTRIAL

PLUMBING Giant Factoriesâ&#x20AC;&#x2122; tankless water heaters operate with an energy factor (EF) of up to 0.96. The units have a 0.26 gpm (1 LPM) minimum flow rate and a 0.40 gpm (1.5 LPM) minimum activation flow rate. On a 35Â°F temperature rise, the 152,000 to 199,000 BTUH input units deliver 7.5 to 9.8 gpm of water.

www. giantinc.com

The Novo 485HE water softener features a high-efficiency valve with backwash rates of 17 gpm. Features include upflow regeneration, optimal precision brining, a backwash frequency preset, automatic system refresh, soft water recharge and soft water brine tank refill.

www. novowater.com

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The Moxie Showerhead + Wireless Speaker by Kohler is designed to synchronize with any Bluetooth-enabled device and stream music directly into the shower. Installed the same as a standard showerhead, the Moxie includes 60 angled nozzles and a magnet for redocking. A colour-changing on/off button for pairing also acts as a battery life indicator. The speaker boasts up to seven hours of battery life.

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Aquathermâ&#x20AC;&#x2122;s polypropylene-random (PP-R)to-copper stub-outs are available in 1/2", 3/4" and 1" diameters. Designed with Sioux Chief Manufacturing, the stub-out represents a more mainstream transition method for potable and greywater service. The PP-R portion of the transition piece is created from mould-injected PP-R and is connected via heat fusion.

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REFRIGERATION

B y Gin o DiFebo Gino DiFebo is a training coordinator with the UA Local 787 Joint Training & Apprenticeship Committee. He can be reached at gino.difebo@jtac787.org.

TESTING SYSTEMS

TO MAINTAIN CHARGE

f a refrigeration system is new, or if it has been modified or repaired in a way that would mandate a need for a leak test, a non-flammable gas like dry nitrogen should be used for an initial pressure test. It will be necessary to ensure that all joints, connections, gaskets and o-ring surfaces are visible for inspection prior to testing.

Piping and components need to be examined before the pressure is applied to ensure that all connections are tight, and that non-galvanic piping supports are in correct locations. Make sure that components cannot be damaged by contact with other materials and components, such as copper control lines rubbing against sharp or rough ferrous edges. High side and low side components, and components not subject to the pressure test, need to be disconnected or isolated by valves, blanks, caps, plugs or other suitable means. Make sure the source for the test pressure (eg. nitrogen cylinder) either has a pressure-limiting device or a pressure-reducing device, as well as a pressure relief device and gauge on the outlet side.

LEAK-FREE FROM THE GET-GO On a new installation, perform leak testing and repair any leaks found. Once the leaks are repaired affix a notice as per applicable refrigerant regulations, stating that the system is leak free. No refrigerant is to be added to a leaking system.

The pressure relief device should be set above the test pressure but low enough to prevent distortion of any of the system components. Test the high and low sides of each system at a pressure not less than that specified by the manufacturer, CSA B52 or, where applicable, on the registered drawing, whichever is required for the application. When testing, slowly introduce the test pressure gas to about 50 per cent of test pressure. Check for audible leaks or a rapid reduction in pressure as a result of a loose connection, etc. Once it appears that the system is tight, increase the pressure in 10 per cent increments until the required test pressure has been reached. Record the test pressure setting and maintain the test for at least two continuous hours. Upon completion of the pressure test, the system is ready for the leak test to be performed. An examination for leaks should be performed using a soap suds test or by electronic leak detection, such as an ultrasonic leak detection meter, or by other methods of equal sensitivity. Examine all joints, connections, flanges, gaskets, and o-ring surfaces on compressors and valves, return bends, and refrigerant-containing control devices. If the continued on page 40

WATCH THE LIABILITY If a system is leaking and the customer refuses to have the system repaired, they are now liable under environmental protection regulations. If leaks are not repaired, the remaining refrigerant should be removed. In some systems, the leaking section may be isolated and the remaining refrigerant removed from that section.

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top performer

Industry-leading Genetron® Performax™ LT refrigerant is the clear leader in its field. If your bottom line is a better bottom line, no other supermarket refrigerant comes close. From keeping fresh food fresher longer to energy savings to eco-friendly performance, the list of reasons to choose Genetron® Performax™ LT over R-438A or R-407A refrigerants goes on and on. Genetron Performax LT offers industry-leading capacity, industry-leading efficiency and low GWP values versus other popular supermarket refrigerants. This saves money in new installations and in R-22 retrofit projects. Plus, a mass flow that identically matches R-22, eliminates expensive expansion valve changes and adjustments in retrofit applications while maintaining superheat performance which protects costly compressors. So go with the gold standard. Go with Genetron Performax LT.

Maximize Performance with Performax LT.

Brenntag Canada Inc. Exclusive distributor of Genetron® refrigerants in Canada Ontario & Western Canada: Tel. No. (416) 243-9615 Fax: (416) 243-9731 Quebec & Maritime Provinces: Tel. No. (514) 636-9230 Fax: (514) 636-8229 To learn more, call 800-631-8138 or visit www.genetronperformaxlt.com. © 2010 Honeywell International Inc. All rights reserved.

REFRIGERATION

continued from page 38

TESTING AT COMMISSIONING

refrigeration system shows no evidence of leaks, slowly release pressure to a well-ventilated space. Remember, nitrogen from the testing will displace oxygen, so ventilation is a must.When no pressure remains within the system, install the vacuum sensor, vacuum pump and lines, and then evacuate and dehydrate the system.

Every field-installed system, or systems having modifications and repairs, must be pressure tested with nitrogen for a minimum of two hours at minimum design pressures for the corresponding low and high sides, or as required by the engineered design. Table 4 of CSA B52 Mechanical Refrigeration Code provides minimum design pressure values if no such values have been provided by the engineer or equipment manufacturer.

Upon reaching acceptable evacuation levels of 500 microns or lower, ensuring no air enters the system, increase system pressure with the required refrigerant to a slightly positive pressure (about five psig), remove the vacuum sensor gauge and proceed to charge the system. It is recommended to perform an additional leak test after the system has started to operate. Once the compressor starts there will be some vibration and possible movement of system piping as a result of thermal expansion and contraction.

THE TRICKLE-DOWN EFFECTSThe maintenance and cleanliness of the heat transfer surfaces is integral to heat transfer, but all of this is for naught if the primary side of the system is not adequately charged with the appropriate primary refrigerant. When leaks occur within the primary side of the refrigeration system, there are countless detrimental effects that can occur, including:

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• Insufficient cooling of the space – this tends to be an obvious and immediate concern; • Increased compressor run time and reduction in operating efficiencies resulting in increased operating costs; • Poor oil return resulting in premature mechanical failure of compressors; and • Overheating and potential electrical failure of refrigerant-cooled compressor motors. Therefore, leak testing of the mechanical refrigeration system is paramount in order to maintain proper operation and system efficiency.

HVAC professionals take a lot of pride in the work they do, and the equipment they install. They choose Armstrong Air because they know our standards are as high as their own. With smart designs like MHT™ Technology in the summer and EHX™ Technology in the winter, we have thoughtfully engineered comfort solutions that can delight every customer, every time. If you're ready to make the choice to sell something better, get started at www.armstrongair.com/become-a-dealer.asp

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ENVIRONMENTAL CONSIDERATIONS The operating environment will play a key role as to potential leakage. If a system is exposed to a corrosive environment, or where excessive vibration/movement is experienced or extreme temperature swings are encountered, then you may be required to leak check more often.

PLUMBING B y D e ni se D e v e a u

HANDS-OFF APPROACH TO RESIDENTIAL FAUCETS ands-free has come to the kitchen, but we are not talking floating pots and pans or robotic appliances. In recent months, plumbing manufacturers have set their sights on hands-free faucet technology to appeal to health-conscious homeowners.

Kohler

H PROXIMITY SENSOR OR INFRARED There are two types of technologies being used in the design of residential hands-free faucets, proximity sensors and infrared beams. For example, Delta’s Touch20 technology uses proximity sensors that operate like a magnetic field around the tap, so it will turn on when an object is within four inches, rather than relying on the user to activate an infrared sensor. “If you take your hands away it turns off automatically,” explains Delta’s Steve Dunn. Moen’s Arbor with MotionSense faucets were launched in the spring of 2012. That line features infrared beams in two locations. A wave sensor near the top of the faucet allows users to start and stop the tap with a simple hand movement, while another sensor near the base identifies when an object is placed beneath the spout, and runs as long as the item is there, an option that’s handy for rinsing dishes.

Once thought of only for the commercial realm, and more for commercial washroom projects at that, the sensor-activated models that are being offered for kitchens have sleeker designs that make upselling to homeowners easier when it comes time to make their kitchen selections. And that upsell is a good thing for the bottom line. Manufacturers report that the premium for a handsfree faucet can be 25 to 35 per cent versus traditional pull-out faucets. Today, the hands-free movement is focused almost exclusively on residential kitchens, says Garry Scott, vice-president of wholesale marketing and brand development for Moen Canada. Moen research within the past year indicated that 52 per cent of homeowners felt a hands-free faucet would “delight them” because it would make life easier, reduce cleaning and allow them to work better in the kitchen. Another huge plus in the kitchen is that it helps to avoid crosscontamination of food.

Kohler has just recently launched a new Sensate touchless kitchen faucet, in which the infrared sensor is on the underside of the spout. This requires a deliberate motion to turn it on or off, which helps minimize the chance of self-activation when people are working in and around the sink area.

continues on page 44

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Kohler

The sensor technology used is different from what you might find in an airport bathroom where it can be tricky to find the beam, explains Sarah Fitzsimmons, product manager for kitchen faucets for Kohler. Rather than sending out a pulse, it sends out a constant beam. “We’ve focused on ensuring prompt response time because we know that’s important when working in the kitchen.”

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Water with the wave of a hand. MotionSense™, only from Moen. Wave over for a pot-filling stream. Reach under for a quick rinse. It’s water how you want it, when you want it.

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PLUMBING

continues from page 42

Kitchen improvements are also going strong, with 25 per cent of homeowners having made minor to major changes to their kitchens in the past 12 months. Of those, 68 per cent replaced their faucets when they did it. That presents a terrific opportunity to upsell. With handsfree faucets fetching upwards of $650, it isn’t an overwhelming upgrade to the homeowner, but it can mean a much better markup for the plumber.

Moen

“It’s a great way to get the customer to consider something they may not have thought they needed. Once they see it, they love it,” says Scott. Sarah Fitzsimmons, product manager for kitchen faucets at Kohler, confirms that residential hands-free has generated a good deal of market interest. “It makes so much sense because you’re not touching or cleaning them as much. It’s all about convenience.”

Delta

Kohler

While not exactly hands-free, Delta brought its Touch20 technology to the market six years ago, allowing users to activate the faucet with a touch rather than using the control lever. From the day it launched, demand was way beyond their wildest expectations, says Steven Dunn, director of marketing, trade channel and training for Masco Canada. “It obviously hit a chord with consumers, because it made working with water easier. And people were more than willing to spend the money on the upgrade. continues on page 46

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PLUMBING

continues from page 44

TOOL TIPS TAKING IT TO THE WC For the most part, designing hands-free faucets for the bathroom is a much lower priority for the residential market. Moen’s Garry Scott notes that bathroom faucets are not in the product lineup for Moen at the moment. “One of the challenges is getting the temperature right when it turns on or off. Typically you use more common temperature settings in the kitchen. In the bathroom, you tend to use cold for one thing and hot for another.”

Drilling the right holes unning plumbing lines and vent pipes through joists and studs often leads to awkward angles to work with, and when you are trying to ensure that a pipe has an appropriate slope, it can pay to have a right-angle drill in your kit.

Delta

While kitchen faucets are the more natural milieu for hands free, Dunn reports that Delta has introduced a Touch20 product line for the bathroom. “It’s a bit slower to adapt, but like kitchen faucets, the uptake is definitely beyond our initial expectations,” says Dunn.

These tools come in corded and cordless models, and many contractors choose 18-volt tools for cordless since they are small and lightweight, but powerful enough to handle holes from 1/2" to four inches. Many contractors opt for corded versions though, since hydro is usually close by at this point of construction and a cord means unlimited run time plus a lot more torque, making the job faster and easier.

As he says, it’s really a matter of practicality and habit. “When we ask consumers what they want, it’s more convenience. Electronics have become such a part of our everyday life anyway. Just look at what today’s cars can do. So it’s only natural for consumers to want to make their interaction with water easier, more convenient and effortless.” In fact, he doesn’t consider hands-free to be a faucet at all. “We’re positioning hands-free as an appliance in a home. These faucets are really an extension of yourself. Whether you’re baking or working with raw meat, it allows you to stay more sanitary and work more efficiently.”

A traditional multi-tooth hole saw will make a clean hole, but this takes a lot of time and the clean hole is not that necessary as it’s behind drywall, for the most part.

Getting by with a little help Installation of a hands-free faucet is relatively easy, since it doesn’t require extra holes. While there are no additional skill sets needed when working with a battery-operated unit, infrared-based systems do demand some basic electrical skills, since the electronic controls are mounted in a control box underneath the deck. “Since you may need a permanent electrical source, you might have to get an electrician to work with you,” says Garry Scott.

Moen

He adds that special care needs to be taken to ensure it works right the first time. “Since there are more complications, if it doesn’t work properly you’ll end up having to come back and service calls can take longer than expected.” It also helps if the manufacturer offers a self-diagnosis pack that will run diagnostics on the electronic components to ensure everything is connected properly. Nunzio DiCesare, product manager of faucets and acrylics for American Standard Brands admits that it’s not as easy as hooking up the hot and cold line. “You’ve got to get the electronics in there, unless you go with lithium batteries. It might be a bit more effort than a mechanical installation, but once it’s done, you’re good to go.” In the event of an electrical outage, some infrared-based faucets come with a battery back-up feature. The standard battery life will last about a year on average. In addition, consumers can use the lever to operate the systems manually at any time.

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Variable speed or clutch options are a definite plus for work control and safety. Some corded models have two speeds. Use the low speed for larger holes and Rough it up the fast speed for holes 1/2" It is fine for holes in rough to 7/8" in size. framing to have an uneven edge, since they will be covered These tools can be quite by the drywall afterwards. While powerful, especially on the a hole saw will give you a nice corded side, so it is advisable clean cut, a right-angle drill and to make use of the handles a self-feed bit make the work go that come with them. These much faster when a smooth handles can be used for finish isn’t needed. bracing or to help prevent kickback if a jam occurs.

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HIGH-PERFORMANCE HVAC

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Gord Cooke is a professional engineer who has spent 20 years helping builders and HVAC contractors implement innovative technologies into high-performance homes. He has particular expertise in IAQ and air flow management in houses, and can be contacted at gcooke@airsolutions.ca.

Heat Pumps:

Advances in air-source technology

was recently at ENERhouse 2013, the Nova Scotia Home Builders’ Association biennual conference, and I was pleased to see that there was significant interest in air source heat pump technologies.

That province has a long history with electric heat, as well as supportive utility and provincial government programs designed to cut electrical usage and demand. For example, new home builders in the province can expect a rebate of $3,000 if they build homes that achieve an EnerGuide rating of at least 83.

From a Canadian perspective, what’s really exciting in modern heat pumps are the new refrigerant management systems, ECM or variable-speed fans, and compressor technologies and control strategies that enable air source heat pumps to work reliably and maintain a reasonable capacity at very low ambient temperatures. Looking at the specification sheet for one commonly available residential mini-split heat pump shows it is able to operate down as low as -21°C – and it maintains a COP of 2.0 at that temperature. These same technical advancements also allow better control of indoor discharge temperatures to help avoid the comfort complaints that were common with older heat pumps. Furthermore, the full variable refrigerant flow (VRF) technology allows multiple indoor modules or heads with one large capacity outdoor unit, and even simultaneous heating and cooling capabilities.

M e c h a n i c a l

It turns out that even a modest air source heat pump applied in the HOT 2000 Energy Simulation software used to generate EnerGuide for New Homes ratings can raise the score by two or three points. This often makes an air source heat pump the most cost effective way to meet the criteria for the rebate. While this may seem like an isolated, limited market opportunity for air source heat pumps, there are important industry changes that should have HVAC professionals across Canada recalibrating their thinking on applying heat pumps in both residential and commercial buildings.

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It is time to rethink the suitability and application of air source heat pumps. High performance low load buildings, buildings with variable load spaces, and near- or net-zero homes are all excellent candidates for the new generation of air source heat pumps.

• Ex c i t i n g a d v a n c e s • Th e in flu en ce o f b u ild in g d esign

The influence

Efficient measures

of building design

The continual drive to improve the energy efficiency of buildings is starting to show dramatic changes in heating and cooling loads associated with the building envelope. Provincial code changes across the country and even local municipal requirements will be driving 15 to 20 per cent increases in energy efficiency every three to five years in all new buildings. Internal loads (people, computers, appliances) and the intermittent loads associated with the seemingly ever-larger window areas will factor into HVAC design parameters, however.

There can be no denying the incredible efficiency offered by heat pumps. There are two commonly used efficiency measures reported for heat pumps. Most contractors will be familiar with the COP or coefficient of performance. That’s the ratio of heat energy delivered to electrical energy supplied or consumed. A more recent term that is better for comparing heat pump performance than the annual fuel utilization efficiency (AFUE) measure used for fuel-fired appliances is the heating seasonal performance factor, or HSPF. This is the ratio of BTU of heat output over the heating season to watt-hours of electricity used over the same season. The units of measurement with HSPF are BTU/watt-hr.

Total loads will be lower, but the loads will be highly variable, and HVAC systems will have to be able to respond quickly and efficiently to changing loads within a building. The growing interest in “netzero” buildings – buildings that only use as much energy as they are able to generate on site – will also impact HVAC equipment choices. The knock on heat pumps is that while they are energy efficient they also use expensive electricity. But if electricity is being generated on site, then tapping that energy source with heat pumps negates much of that cost disadvantage. For these reasons, new building designs will be very conducive to the flexibility that the new generation of air source heat pumps may be able to offer.

A much-improved option There is no such thing as the good old days of heat pumps in Canada. Poor output performance in cold weather, durability issues and inadequate technical support from manufacturers plagued the early attempts at using air source heat pumps in this country, but all of that has changed for the better. While the technology is still tied to the relatively expensive electrical supply grid, there has to be recognition that the industry support network for mini-split A/Cs and heat pumps, along with forced air heat pumps, has improved dramatically.

The HSPF can be converted to an average seasonal COP by multiplying the HSPF by 0.293. For example, an HSPF of 7.1, the current level required for Energy Star certification in Canada (Heating Region 5) would be equal to an average seasonal COP of 2.08. The HSPF of a particular heat pump is determined using standard rating conditions for both inside the building and outside climate. As such, applying the results to calculate or predict energy performance in a specific building or climate zone can be difficult. The intricate control strategies, refrigerant management systems and the effect of different climates makes it tricky to assume that the percentage performance difference between two heat pumps can be applied to expected energy usage. For example, a device with a 25 per cent better HSPF, say 8.75 as compared to a unit with a rating of 7.0, may not result in a full 25 per cent energy savings when applied in a particular building in a specific climate. Of course, similar anomalies can result from application of AFUE or SEER ratings as they too are determined using standardized rating conditions that may not reflect actual application conditions. This isn’t meant to discourage selection of more efficient equipment, but rather to point out the need for thorough consideration of all available data. When selecting a heat pump, the HSPF for the specific climate region should be considered, along with knowledge of the actual heating output of the device at the design heating temperature for the location.

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Jeff House is an experienced industry professional and hydronics trainer. He handles the sales territory from the Niagara region to the Greater Toronto Area for Jess-Don Dunford, a manufacturers’ rep in Ontario. He can be reached at jhouse@jessdondunford.com.

Add the Pool, Please The owner of this new house had you install a furnace and A/C as well as radiant floor heating in the basement and DHW. They want to add a pool heat exchanger to their lap pool so they can extend the swimming season. 1. The boiler is a wall hung unit with 125,000 BTUH input at 95% efficiency. The floor warming load is 20,000 BTUH and the indirect needs 140,000 BTUH to perform as per the manufacturer’s instructions. The pool is 12,000 gallons. Will you have to: A. Upsize the boiler. B. Change the piping. C. Change both the boiler and the piping. D. The 125,000 will be fine but you won’t get all the gpm of DHW that the indirect is capable of. 2. The boiler piping is 3/4” as supplied by the manufacturer. Assuming a 20°F ΔT, the near boiler piping should be: A. 3/4”, otherwise it would have been supplied with larger fittings. B. It should be one size up, so 1” is the right size. C. 1-1/4” would easily carry the load. D. It should match the short fat header you connect to, which is 2”. 3. You do the math and decide the boiler is large enough to heat the pool. The heat exchanger has 1-1/2” fittings for the boiler side and 2” for the pool side. If you want to heat the pool from 65°F to 85°F on a normal 65°F day, approximately how long will it take if you can use all the net 118,750 BTUH of the boiler? A. 24 hours B. 17 hours C. 12 hours D. 36 hours

4. You choose a 40-gallon indirect water heater based on cost and performance. The specs say you get 198 gallons of first hour recovery with 180°F supply and 14 gpm with a net 105,000 BTUH. The owner is looking for a lot of hot water. You pipe the indirect with 1” piping just like the fittings on the tank and install a standard three-speed circulator, which you always use with your residential jobs. The owner is very dissatisfied with the amount of hot water he is getting and says it is nowhere near 200 gallons an hour. You call the supplier and he says: A. Did you pipe it correctly? B. The tank rep says, “Your piping and three-curve circulator are too small.” C. Send it back and we will replace it. D. We have sold lots and no one has complained before.

Answer and win! PACKING A POWERFUL PUNCH! Just send us your answer key to this month’s puzzle by April 30, and you could be sporting a Milwaukee M12 Rotary Hammer, courtesy of Milwaukee Electric Tool. Send your answers to adam.freill@mechanicalbusiness.com and the M12 subcompact cordless rotary hammer could be yours.

5. Bonus: (T or F) In question 4, if the head loss is 6’ you should use 1-3/4” piping with a circulator capable of 14 gpm at 6’ of head.

Looking for the answers? The answer key for the January/February quiz is: 1-B or D; 2-C; 3-B; 4-D

Step right up and win a Prize! Just like Earl Leger of E. Leger Plumbing & Heating Ltd. in St. Andrews West, Ont. He recently won a Milwaukee M12 Cordless Sub-compact Band Saw for his answers, so drop us a line, and get those answers in. And be sure to pick up the next edition of Mechanical Business for the next installment of Find the Fix! for the next installment of Find the Fix!

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B us in es s

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If you need the quiz, check it out in our issue archive at www.mechanicalbusiness.com.

VARIABLE SPEED PUMP CONTROL

B y R o d n ey D. M . B r andon

SENSORLESS PUMP CONTROL For high-rise and residential retrofit applications, nothing can be easier than sensorless ΔP pump control. With sensorless ΔP, the variable speed pump controller calculates the ΔP across the pump based on the known head and flow values for that pump in that system, at the instant of motor amp draw and rpm speed. So control is based on the inferred ΔP without need for any type of sensor at all.

Some manufacturers supply products with a sensorless ΔP controller mounted right on the pump or circulator. In this pump curve illustration, we can see the natural system curve (A) and the quadratic control curve (B). The minimum head of the control curve is typically set to about 40 per cent of full head. On control curve B, we can see that if the pump is running at 1,200 rpm and 10 hp, we know that the current system head is 58 feet and flow is 600 gpm. If the system pressure tries to increase due to control valves closing when zones are satisfied, we slow down the pump to stay on the control curve, thereby reducing head and flow.

Delta P control may be better for larger systems, to ensure the circulating pumps run at their best efficiency rpm and position on the pump curve.

DELTA T DELTA P n the September/October 2012 edition of Mechanical Business (page 106), we looked at how the “Setpoint T” variable speed pump control algorithm worked in various applications, from fan coils to radiant floors, and how it is easy to base control on temperature.

Today, the hydronics marketplace is engaged in debate over whether ΔT or ΔP based pump control is better. Which is better, ΔT or ΔP? Well, it depends. One must look at the building structure and compare boiler energy, pump energy and wiring installation costs to determine whether ΔT, ΔP, or sensorless ΔP, is the best algorithm upon which to base variable speed pump control. So what’s the difference? Well, let’s look at the control options and see.

HANDLING HIGH RISES WITH DELTA P In high rise buildings, ΔP sensors across the risers in the mechanical room simply won’t do. Here, the changes in ΔP that result from the closing of one or more control valves at upper levels are too minute to have any real effect on pump speed. This means a pressure sensor needs to be installed across the most disadvantaged leg of the system to get maximum ΔP resolution, but the most disadvantaged leg does not represent the entire system. For best ΔP control, several ΔP samples must be taken throughout the building, and averaged to provide sufficient ΔP resolution and proper system correlation to base control on.

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continued on page 54

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continued from page 52

Let’s assume that the boiler is a condensing type, and the ΔT was picked to place the return temperature at the ideal flue gas condensation point for maximum boiler efficiency.

Image 1

If the pump speed remained constant, as one or more zones are satisfied and the corresponding zone valve(s) close, the flow rate through the remaining open terminals would increase but, ultimately, the ΔT across the boiler would be reduced (as less BTUs are drawn from the hydronic fluid), raising the return temperature to the boiler, and reducing overall efficiency.

DELTA T PUMP CONTROL Most hydronic systems are built around a design ΔT. This is the desired difference (or delta) in temperature between the hydronic fluid supply from, and return to, the boiler. How the specific ΔT value chosen affects the system is an article for another time, however. Referring to the universal hydronics formula, BTU = GPM x ΔT x 500, we can see that if we hold ΔT constant and alter the flow rate

we cause a proportional change in the thermal energy distributed. Looking at Image 1, we can see that the pump motor is the controlled device, whose speed, and hence flow rate is set by the temperature controller, based on the difference between the supply and return temperature to the boiler. (The boiler supply temperature may be fixed, or variable, perhaps based on outdoor reset.)

In contrast, if the pump speed is automatically adjusted to maintain a constant ΔT across the boiler, it would not matter how many (if any) zone valves are closed. The return temperature to the boiler can be maintained at the best efficiency operation point. Of course, as the speed of the pump is reduced so is the produced head. But by how much? We really don’t care.

DELTA P PUMP CONTROL The ΔP control loop looks almost identical to the ΔT design, the only difference being that now we are basing control on the change in pressure instead of change in temperature across the boiler. A similar situation happens as with the ΔT system; as valves close the pump is slowed down. However, in this case, it is the change in pressure across the system that is the basis of control, and therefore we don’t really know what the ΔT is at turndown. In some cases, we wouldn’t care so much, but in the others, the reduction in ΔT (increase in boiler return temperature) may move us into a less efficient boiler operating condition.

outweigh the boiler energy consumption, so it can be quite beneficial to worry more about pump efficiency than boiler efficiency.

Delta T control may be better for smaller systems, to ensure the boiler runs at its best efficiency point.

For a new installation, running differential pressure sensor cabling or installing wireless sensors throughout a building is no big deal; however, in an existing building retrofit situation, this can be costly.

Image 2

For smaller systems, the building owner may express frustration at paying for a 92 per cent efficient boiler, but never see it get above 85 per cent efficiency in operation. However, in larger systems the pump energy consumption can

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Rodney D. M. Brandon is a brand and product portfolio strategist to HVAC and other industries, and can be reached at rodbrandon@live.ca.

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Marketing with DOUG MACMILLAN

Doug MacMillan is president of The Letter M Marketing in Guelph, Ont. To reach him, email doug@thelettermmarketing.com.

Getting ahead by getting into real estate HVAC contractors can help real estate agents convince their clients that switching an old furnace can make all the difference when selling a home.

No sale? No problem What if the agent can’t convince the seller to invest in a new HVAC system? Well, the home will sell eventually, and with an old clunker still in place. The opportunity remains, and a slightly repackaged promotion can go to the new owners once the deal is done, but before the closing date. For helping facilitate this, the agent stays in the game and collects your commission.

The best of the best The success of working with a referral network of real estate agents rests on actually being the best in town. You’ll need to prove it to them. No agent worth her salt is going to pass along the card of someone with a sketchy reputation for quality service and products, or who isn’t well known in the community. It’s your job to build that reputation – if not to make the realtor feel confident about recommending you, then to simply stay in business, period.

finished, high-end turnkey experience – no renos, no repairs, no costs for changing out a furnace. Anything old and tired is a turn off.

ho is foolish enough to move houses in the dead of winter? Me, apparently. There’s nothing like hauling armloads of clothes, boxes of dishes and pieces of furniture through ice and blowing snow. But I digress...

At the same time, realtors are bracing themselves for a new reality – one where prices and therefore commissions are lower, or sellers are bypassing them altogether. Real estate agents are open to more creative business approaches for revenue generation.

Leading up to the move, my significantly better half and I viewed more than 100 homes in search of the perfect fit – one in particular stands out though. We were quick to dismiss a place with an old, inefficient clunker of a heating system that I didn’t want to deal with or pay for.

It seems to me that an agent might entertain a win-win proposal from a reputable HVAC dealer. So why not suggest a promotional package for their customers?

In contrast, our realtor had ensured our furnace was in peak condition before we listed, and was often appalled that a selling agent hadn’t convinced their homeowner to switch out an old system before the listing. A shiny new furnace is a pretty great selling feature, and worth the effort. Now, I know that “build a relationship with real estate professionals” is an old conversation in the HVAC world, but it’s one worth having again. I’ve learned the hard way that today’s homebuyer brings less imagination to the viewing. They want a

It could be a “Sell it Faster” superspecial deal for a new furnace and/or air conditioner, complete with a 10year warranty and a one-year maintenance plan that can be transferred to the new owner. When redeemed by a homeowner, the agent could receive a commission for the referral. The agent makes a buck or two, as does the contractor, who also acquires a new comfort plan customer in the process. There are a dozen variations on this theme, and they all add up to more business for everyone. While the dead of winter may not be the best time to move, it’s a pretty smart time to ramp up a strategy like this. After all, nobody wants the furnace to breakdown the morning of an open house – and apparently that’s something that happens more often than you might think.

OOPSIES! Cambridge’s Service 1st Heating and Cooling was inadvertently r eferred to by the wrong name in the previous column. Sorry for the misidentification, but great job on helping others out.

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with Roger Grochmal

Taking a bigger view of the numbers Roger, I see statistics all over the place, but it can be very confusing. What numbers do you consider important to your business? Jim R., Fort McMurry, Alta.

or 25 years I have regularly looked at the figures for shipments of furnaces and air conditioners HRAI publishes every quarter. They tell an interesting story about the overall health and growth of our industry, as well as the economy at large.

F Roger Grochmal is the CEO of AtlasCare in Oakville, Ont. To submit a question about your company, business practices, or the industry in general, send an e-mail to Mechanical Business magazine’s editor, Adam Freill, adam.freill@ mechanicalbusiness.com.

Until recently, I had never looked at them over a long period, say 25 to 30 years. When I do, another picture emerges.

What’s on the mind of my customers? My company is in the residential replacement business. We tend to be affected by consumer confidence, which usually draws its strength from the state of the economy. Lately the levels of household debt also seem to be playing a part, as consumers can only afford to purchase so many things.

Looking at HRAI shipment figures from the past 30 years shows us that we were in the midst of another recession 20 years ago, and industry shipments were at their lowest level in that time frame. That’s similar to now, except that the current trough has been exacerbated by government grants that saw us replacing some equipment sooner than originally anticipated.

Cash is King! The greatest sin in business is running out of cash. Are your “accounts receivable days” up or down? What's happening with your inventory? What are you doing to improve these figures? This is a good time to focus on these items. They are important in every contracting business.

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From what I can tell, it looks like we have two or three more years of tough sledding, but the good news is that the 10 years after that look pretty good for our sector. It took someone outside my company to point this out to me. That said, the economy could get better tomorrow and I still wouldn't have any equipment to replace. This isn't comforting news but at least I know that I will have to do some things differently to grow my business.

depending on the new mix of business even though overall sales have stayed the same.

Sales leads fall into the same category. It's not sufficient just to count sales leads but we also need to track where they are coming from. We are starting to see more and more leads coming to us from the internet, and now even from cell phones to our mobile app. That's a different customer that needs to be handled differently. As contractors, we only tend to care about whether our business is making or losing money. The balance sheet, however, is a better indicator of the financial health of your business. This is what your accountant and banker talks to you about.

This begs the question, “Are there any other numbers in our business that when looked at another way might tell us a different story?” I think so.

HRAI offers an excellent course in financial management for contractors. I've taken it a couple of times and I would highly recommend it. HRAI also conducts an annual benchmarking study of financials. Cost of participation is low and there is a lot of good information.

Take sales revenue for example. Has there been a change in the mix of your business between service, replacement and construction? This can be important since different business markets carry different costs and margins. Profitability could go up or down

What numbers are important to your business? Look at them a little differently, or better yet get a new set of eyes on them, and see what story they tell. You might just get some insight into trends developing in your business.

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REFRIGERATION TROUBLESHOOTING

B y P h il J. B o u dreau

Keeping condensing units and evaporator systems up VERSUS and running

ast issue we discussed various system conditions, along with the possible causes that could result in each problematic condition. Let’s continue this discussion with a few more of these system conditions and their causes.

Phil J. Boudreau is the Ontario sales manager for Bitzer Canada Inc. and also provides training and technical support for Bitzer’s clientele. He can be contacted at pboudreau@bitzer.ca.

SYMPTOM: LOW EVAPORATOR PRESSURE AND HIGH SUPERHEAT (CONTINUED) TABLE 1 AMBIENT FAN COOLING THERMOSTAT SETTINGS

CAUSE: CONDENSING PRESSURE CONTROLS SET TOO LOW

Number of Fans on Condenser

In typical commercial refrigeration systems, there are two fundamental system pressures: the low and high side pressures. The compressor must provide the required rate of flow at the design evaporating and condensing temperatures. The metering device must also produce the required rate of flow at this available pressure difference. In fact, this pressure differential (ΔP) is the driving force for refrigerant flow through the metering device. As the ΔP increases, the capacity of the metering device will increase. Conversely, as the ΔP decreases, the capacity of the metering device will decrease accordingly. If this symptom persists during the cold winter months, then it is possible that the valve was not selected with the low condensing pressure in mind. When the discharge pressure is low, the refrigerant flow rate is greater and the required port size becomes greater due to the lower ΔP and higher refrigerant flow rate. In order to correct this issue, it may be necessary to increase the head pressure enough to ensure an acceptable and stable superheat within the evaporator. Manufacturers of remote air-cooled condensers and condensing units typically publish tables like Table 1. These are helpful when determining control settings, and are generally available for both temperature and pressure fan cycling controls.

Single Row Double Row Models Models

Design T.D. ºF (ºC)

Thermostat Setting ºF (ºC) 1st Stage

2nd Stage

3rd Stage

30 (16.7) 25 (13.9) 20 (11.1) 15 (8.3) 10 (5.6)

60 (15.6) 65 (18.3) 70 (21.1) 75 (23.9) 80 (26.7)

30 (16.7) 25 (13.9) 20 (11.1) 15 (8.3) 10 (5.6)

60 (15.6) 65 (18.3) 70 (21.1) 75 (23.9) 80 (26.7)

40 (4.4) 55 (12.8) 60 (15.6) 65 (18.3) 75 (23.9)

30 (16.7) 25 (13.9) 20 (11.1) 15 (8.3) 10 (5.6)

60 (15.6) 65 (18.3) 70 (21.1) 75 (23.9) 80 (26.7)

50 (10.0) 55 (12.8) 65 (18.3) 70 (21.1) 75 (23.9)

30 (-1.1) 40 (4.4) 50 (10.0) 60 (15.6) 70 (21.1)

30 (16.7) 25 (13.9) 20 (11.1) 15 (8.3) 10 (5.6)

60 (15.6) 65 (18.3) 70 (21.1) 75 (23.9) 80 (26.7)

55 (10.0) 60 (15.6) 65 (18.3) 70 (21.1) 75 (23.9)

45 (7.2) 50 (10.0) 60 (15.6) 65 (18.3) 70 (21.1)

30 (16.7) 25 (13.9) 20 (11.1) 15 (8.3) 10 (5.6)

55 (12.8) 65 (18.3) 70 (21.1) 75 (23.9) 80 (26.7)

50 (10.0) 60 (15.6) 65 (18.3) 70 (21.1) 75 (23.9)

40 (4.4) 55 (12.8) 60 (15.6) 65 (18.3) 70 (21.1)

NOTE: These are typical settings. Further adjustments may be necessary to suit actual field conditions.

continued on page 62

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REFRIGERATION TROUBLESHOOTING SYMPTOM: HIGH EVAPORATOR PRESSURE AND LOW SUPERHEAT CAUSE: LOOSE TEV BULB If the bulb does not have good thermal contact with the suction line then the bulb temperature will tend to be higher and the evaporator will be overfed with refrigerant. When the evaporator has too much refrigerant the superheat will be low. This can lead to liquid slugging and compressor lubrication issues.

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continued from page 60

CAUSE: DIRTY/FOULED CONDENSER; REFRIGERANT OVERCHARGE If the system uses a capillary tube refrigerant feed method and experiences high evaporating pressure and low superheat, it is also possible that the system has a partially plugged condenser and/or refrigerant overcharge. Check the liquid line subcooling. If the subcooling is more than a few degrees then it is possible that the system has been overcharged. Systems that use flooding head pressure controls are often overcharged when the technician is not able to determine how much additional refrigerant is needed for efficient operation during the cold winter months.

SYMPTOM: HIGH EVAPORATOR PRESSURE AND HIGH SUPERHEAT CAUSE: INEFFICIENT COMPRESSOR

R-407C Air Conditioning

If the system experiences this condition then it is possible that the compressor has experienced some internal damage. In this case, it is likely that the compressor has broken reed valves or other compression components. The system flow rate decreases when this occurs, and the compressor will not be able to achieve the necessary low and high side pressures. If the compressor motor is refrigerant cooled, this also places the motor at risk of overheating.

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When replacing a compressor, always ensure that the contactor is also replaced â&#x20AC;&#x201C; regardless of whether the failure was of a mechanical or electrical nature. During commissioning, be sure to check pressures, superheats at compressor suction and discharge, liquid line subcooling, and the compressor input voltage and amperage.

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As another possible cause for this symptom, a hot gas bypass valve could be overfeeding hot gas to the evaporator or suction line. This may be due to a setting that is too high or perhaps due to a defective regulator.

SYMPTOM: UNSTABLE SUCTION PRESSURE AND SUPERHEAT For more information call 416-614-3610 416-614-3610 or 1 1-800-567-5726 -800-567-5726 x 230 or vi visit sit us on the web at

CAUSE: FLUCTUATING HIGH SIDE PRESSURE

www www.R22retrofits.com .R22retrofits.com

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Fluctuating high side pressures are often the result of incorrectly set fan-cycling controls. Smaller systems that have fewer fans and do not have flooding head pressure controls are more vulnerable to this condition since there are fewer capacity steps. 0 4 . 1 3

â&#x20AC;˘ S y m p t o m s an d cau ses CAUSE: FLUCTUATING LOAD This is less likely to be caused by a fluctuating load, but this is not unheard of. For example, a chiller that experiences an intermittent processside flow may experience this condition.

show signs of contact fatigue, pitting or burning. It is also important to ensure that the compressor always operates within its operating envelope, even during pull-down, pump-down and defrost.

SYMPTOM: COMPRESSOR SHORT CYCLING CAUSE: REFRIGERANT UNDERCHARGE This is commonly experienced on commercial split systems that use flooding head pressure controls. If the system was charged during warmer weather, the previous technician may not have charged enough refrigerant into the system. While correcting this issue, be careful not to overcharge the system.

CAUSE: TRIPPING ON THE COMPRESSOR THERMAL PROTECTION OVERLOAD DEVICE Check all wiring to ensure that connections are tight and that the voltage to each motor terminal is within the compressor manufacturerâ&#x20AC;&#x2122;s specifications. Make sure that the contactor does not

BOUNDLESS TROUBLESHOOTING This article, and my articles in the previous two issues of Mechanical Business, discuss a number of symptoms that may be experienced with commercial split type refrigeration systems. There are, of course, other possible causes for the symptoms discussed and one should consider all possibilities when troubleshooting. To check out those past articles, hop on www.mechanicalbusiness.com and click on the digital issues tab.

Confidence... is knowing that when you are dealing with HRAI Wholesaler members, you are dealing with companies that provide value-added products and services and staff dedicated to the highest standards of customer service. When dealing with HRAI Wholesalers, you can be confident that you are in good hands! Look for your nearest HRAI wholesaler member today! www.hrai.ca/wholesalers

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HRAI... Setting the Standard

www.hrai.ca 1.800.267.2231

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COVER STORY By Andrew Snook

Plunging into the family business

Photos: Courtesy of the Office of Senator Donald Neil Plett.

Don Plett was introduced to the plumbing trade in 1957 at the age of seven when his father, Archie Plett, bought a small plumbing company and founded Landmark Mechanical. Don began learning the trade from his father and took up an apprenticeship in his youth. He worked on the tools for his dad at the company until the late 1970s when his father asked him to learn the management side of the business. Don eventually took over the running of the family business in 1987. He still remembers some of the biggest challenges the company overcame, including operating during the National Energy Program in Alberta. “We had an office there. Those were the 21 per cent interest days. It was very hard to make money,” says Don. “Fortunately our debt load wasn’t too high at the time, but it was a huge challenge.” Another hurdle he had to overcome those days was finding and keeping reliable tradespeople for the company’s contracts in various remote northern communities in Alberta, Saskatchewan, Manitoba and the Canadian arctic, which already came with its own set of logistical challenges. “It was very interesting work, but extremely difficult work,” says Don. Back in the mid-80s, it would cost him $1,500 to send a tradesperson up to Pond Inlet, near the top of Baffin Island. “[We] couldn’t have turnarounds every two weeks, we needed someone to stay there two to three months,” he explains. “There’s a lot of turnover of staff when you do that kind of work, but it’s certainly exciting work. I’ve been able to see an awful lot of our country.” Don continued to run the family business as he became more and more entrenched in the world of politics. He only completely removed himself from the company in 2007, when he passed control of the family business on to his two youngest sons, Howard and Kevin. Plett was appointed to the Senate by Prime Minister Stephen Harper in 2009.

lbeit for different reasons, plumbing and politics are two professions that are sometimes referred to as dirty jobs, but rarely are they echoed in the same sentence. One of those rare exceptions is the Honourable Don Plett, Senator for Landmark, Man. The former owner of the plumbing and heating firm Landmark Mechanical is flush with experience in both the plumbing trade and Canadian politics.

Challenges are with numbers, not skills Don says the biggest problem in the trades today is finding enough skilled tradespeople, and definitely not finding a decent place to work. “I believe if you are a tradesman worth your salt you can demand a good job,” he says. M e c h a n i c a l

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A tough transition

Don Plett, Senator for Landmark, Man. (bottom right), poses with his father Archie, the founder of Landmark Mechanical, and his four sons Jason, Howard, Kevin and Brad. Howard and Kevin (top middle) took over managing the family business from Don in 2007. Don gives a lot of credit to his late father. “My father taught me work ethic. He was an example even to his grandsons.”

A conservative upbringing Although Don’s father wasn’t interested in becoming a politician himself, he was always a staunch conservative supporter. “He had a passion for what he believed in, for good government,” says Plett. “He raised all his children to be the same. He got me involved in campaigning.” Plett’s was first introduced to politics at the age of 15, when he volunteered his time as a scrutineer and eventually got involved in running political campaigns in the Provencher riding for current Minister of Public Safety Vic Toews and former MP and cabinet minister Jake Epp. It was during his time managing Toews’ campaign that Don became active in the Canadian Alliance Party. This is where Don would eventually work alongside Stephen Harper in uniting Canada’s political right across the country. “I just felt in order to form government we had to get every conservative in the country to be singing from the same song sheet,” says Don. After being named the founding president of the Conservative Party of Canada, Don spent several years travelling from coast to coast in an effort to merge the Alliance and the Progressive Conservative Party of Canada.

The most difficult part of leaving the plumbing and heating industry for full-time politics was missing out on the relationships he built over the years, says Plett. “I had made a lot of friends in the industry,” he explains. “I always enjoyed the industry, especially a lot of the work we were doing up north.” A couple of Don’s friends in the industry who he holds in high regard are former vice-president of Wolseley Canada (Calgary) Brian Wilcox and Ross Robinson, president of Winnipeg-based B.A. Robinson (check out his profile on Page 22). “Both of these men display professionalism, courtesy and integrity,” says Don. Although he is no longer active in the plumbing and heating industry, many of the relationships Don built over the years are still alive and well today. He was a keynote speaker at CIPH’s annual business conference last year, held at the Chateau Montebello in Montebello, Que., and is hosting a visit to Ottawa for tradespeople later this year (see sidebar, “A Day on the Hill”). “I was so happy to speak at the CIPH ABC in Montebello,” he says. Don currently sits on the senate committees for Agriculture and Forestry, National Security and Defence and is the deputy chair for the Subcommittee on Veterans Affairs. “There was never a day in my life that I ever dreamed of being a senator,” he says. “It is one of the most humbling positions I could possibly imagine. When I walk into the Red Chamber even today, and realize the awesome responsibilities that we have, I know that the work that we do here is tremendously important.” And despite his pedigree, his work today has more to do with politics than the mechanicals. When asked if anyone around Parliament ever asks him for advice with a plumbing problem he laughs and says “no.”

Work hard and succeed For Don, the key to success in both the trades and in politics is a strong work ethic and perseverance. “If you want to be a good tradesman you start at the bottom and work up. If you’re not going to be a good plumber, you won’t be a good plumbing contractor.” Don’s success in the world of Canadian politics didn’t come overnight, and in his view, there’s always room for improvement. “I’m 62 years old and I think it’s still a work in progress.” Of course, he can’t take all the credit for his achievements to date. He says his wife of 45 years, Betty, has always been a key part of his successes, supporting him through all his decisions.

A Day on the Hill On April 30, 2013, Don is sponsoring “A Day on the Hill” event with MCA Canada and CIPH. He chose to sponsor the event due to the work that organizations like CIPH and MCA Canada do to promote clean drinking water and good sanitation practices throughout the world. He adds that Canadians don’t need to look outside of their own country to find communities in need. He says there are many First Nations communities that currently suffer from a lack of clean drinking water. For more information about the upcoming event, contact your local MCAC or CIPH office.

mcac.ca

ciph.com

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What: Mecanex/Climatex/Electricite/Eclairage (MCEE) Where: Place Bonaventure, Montréal, Québec When: Wednesday, April 17, 2013 - 11 a.m. to 8 p.m. Thursday, April 18, 2013 - 11 a.m. to 5 p.m.

New technologies and new heights Show organizers are anticipating between 6,000 and 7,000 visitors to hit the aisles at Place Bonaventure in Montreal for the 2013 edition of the Mecanex/Climatex/Electricite/Eclairage (MCEE) show. Held every two years, the 2011 event showed growth of 18 per cent over the previous edition, and with exhibit space being snapped up even faster this time round it should make for an even bigger event. Targeting contractors, wholesalers, engineers and builders in such trade sectors as plumbing, air conditioning, heating, hydronics and refrigeration, this year’s show will feature products and services from more than 350 exhibitors. Products in this issue from exhibiting companies are designated with an MCEE logo.

On the show floor, exhibitors will be vying for awards in the New Product Showcase, a celebration of the top technologies in the trades, including some products that will be launched at MCEE 2013. Upstairs in the concourse, a comprehensive offering of free seminars is also available to visitors, with sessions being held in French unless otherwise noted in our listings. MCEE is produced by the Canadian Institute of Plumbing and Heating (CIPH), the Corporation des Entreprises en Traitement de L'air et du Froid (CETAF), the Corporation of Master Pipe Mechanics of Quebec (CMMTQ), and the Corporation of Master Electricians of Quebec (CMEQ).

www.mcee.ca

Floorplan: Place Bonaventure

Look for

in this issue for products by exhibiting companies 134

Show Hours

April 17, 2013 11 a.m. to 8 p.m.

April 18, 2013 11 a.m. to 5 p.m. Booth #134

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12" Wide Trench Drain Just Got a Whole Lot Easier

Introducing the New Dead Level DX 12" Trench Drain TM

ustomers who have used our unique Dead Level™ Trench Drain system call it the best trench drain ever. And understandably so. The Dead Level™ system cuts installation time by more than half, and makes floating, pinching, and misalignment things of the past. Now we’ve made a great product even better. Dead Level™ Trench Drain is now available 12” wide. With radiused bottoms and smooth interiors, the new DX channels generate maximum hydraulic flow. For additional information, click on over to watts.com

A Watts Water Technologies Company

See Page 66 for complete floor plan

List of Exhibitors (as of press time) Highlighted companies have ads in this issue.

A.M.T.S. ...................................................337 A.O. Smith WPC.....................................206 AAF Canada ...........................................975 Acces location ........................................866 Acudor Acorn .........................................238 Acuity Brands .........................................279 AddEnergie ............................................458 Agence Beliveau & Turmel & Assoc.....572 AIC Heat Exchangers.............................237 Aimco International ...............................959 AIRIA Brands/Lifebreath........................841 Airtechni..................................................327 Airvector..................................................641 Allied Engineering .................................336 Allpriser...................................................142 American Standard Brands ...................521 Amtrol Canada .......................................401 Anvil International ..................................420 Apollo Valves ..........................................313 Aquanar ..................................................920 AquaWaterEau .....................................1071 Arani ........................................................267 Arlington Industries ...............................671 ASHRAE - Montreal ...............................718 ASPE - Montreal.....................................716 Aspen Canada........................................817 Aurora Lighting ......................................273 AW Lighting............................................286 Axiom Industries ....................................334 Beautech NB ..........................................861 Beghelli Canada.....................................277 Belanger-UPT .........................................912 Belimo Americas ....................................940 Bemag.....................................................151 Bemis.......................................................619 Bibby-Ste-Croix ......................................907 Biddle Air System.................................1050 Bitzer Canada .........................................942 Blanco Canada .......................................619 Boitiers Sta..............................................457 Bosch Thermotechnology ...................1070 Boshart Industries ..................................319 Bow Plumbing Group ............................105 Bradford White-Canada ........................509 Brenelle Enterprises...............................821 Briggs Industries ....................................619 BSDQ ......................................................755 Bucan ....................................................1000 Bureau de la securite privee .................451 Burke .......................................................121 C-nergie ..................................................258 C.R.S........................................................904 Cable Alcan ............................................356 Camatec................................................3052 Canada Hand Dryers .............................657 Can-Aqua International .........................204 Canplas Industries..................................901 Capteurs GR ...........................................613 Carburation Express ..............................974 Caroma....................................................817 Carrier/WWG Totaline ...........................927 CB Supplies ............................................504 CCBDA....................................................344 CCQ ........................................................660 CETAF .....................................................740 CHC.........................................................141 Cheminee Lining....................................421 Cheminee Securite Intâ&#x20AC;&#x2122;l .........................234 Chevrier Instruments..............................637

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CIPH ........................................................138 Circa Hydel .............................................655 CisoLift Distributors .............................1066 Clifford Underwood .............................1019 CMEQ .....................................................667 CMMTQ ..................................................605 Cochrane Supply Canada .....................760 Coleman Cable Canada ........................359 Columbia MBF .......................................157 Comac.....................................................154 Connectall...............................................620 Consortech ...........................................3044 Constructo ............................................1069 Contact Delage ......................................151 Controles R.D.M.....................................332 Convectair...............................................460 CSA Group .............................................588 CTM.........................................................654 CTRL........................................................971 Cummins.................................................567 CWQA.....................................................143 D.I.S. Solution.......................................1051 Dafco Filtration.....................................1056 Dahl Brothers..........................................321 Dale Parizeau Morris Mackenzie...........670 Dave Vallieres .........................................819 DDR Americas ........................................944 Deflecto ..................................................312 Delta Products........................................816 Deluxair...................................................533 Descair ....................................................343 Deschenes & Fils....................................343 Dettson .................................................3014 Dicon Global ..........................................274 Dimplex...................................................472 Diversitech ..............................................536 Dobbin Sales ..........................................226 Douglas Lighting Controls ....................470 Drumco Energie .....................................790 Drummond Wajax ..................................361 Dubo Electrique .....................................674 Duro Dyne Canada ................................544 DynAir ...................................................1006 Dynapompe..........................................3046 E.H. Price ................................................877 E.S. Gallagher.........................................836 Eastern Foundry & Fittings ..................701 Easy Heat ................................................754 Eclairage Contraste M.L. ......................177 Eclairage Cyclone ..................................171 Eclairage professionnel .........................380 Ecogenia/Armeco ..................................960 Eco-King................................................1002 Ecole de technologie gaziere...............717 Ecotherm ................................................305 EGS Appleton ........................................372 Eiko..........................................................275 Electrical Line .........................................478 Electro-Federation Canada...................589 Electromega ...........................................489 Emco .......................................................627 Energy In-Hybrid Solutions ...................843 Enertrak...................................................545 Enterprises LM ......................................554 Enviroair Industries ...............................850 Erico .................................................355/239 Exact Tools............................................1016 Expert Estimateur ..................................856 F.E. Myers (Pentair).................................317

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Fantech ...................................................633 Feralux.....................................................271 FIPOE ......................................................672 Fire Barrier Pro .......................................148 Fleurco ....................................................906 Flexco....................................................1017 Flexcon Industries ..................................439 Flexmaster ..............................................517 Flir Systems.............................................557 Flocor ......................................................343 Fluke Electronics ....................................257 Formadrain .............................................107 Franke Kindred.......................................512 Franklin Electric ......................................417 Franklin Empire ......................................261 G. Mitchell ..............................................612 G.F. Thompson .......................................435 Gastite/Thermaflex ................................819

WEDNESDAY, APRIL 17, 2013 Storm Drainage Networks Hydraulic Surge Problems Time & Place: 1 p.m. Room 5 Description: Rainwater disposal systems in large buildings are often subject to surges. This presentation will look at how to lower the risk and ways to prevent surges and protect against them. Speaker: Louis Beauregard, member of the CSA Sector Advisory Group on Water Management Products, Materials and Systems

Avoid Noise Problems in your HVAC Designs Time & Place: 1 p.m. Room 7 Description: Unique approaches to mechanical designs for new construction as well as renovation projects. Speaker: Robert W. Clements of Vibro-Acoustics

Chapter III - Plumbing, 2013 Edition, Major Changes Time & Place: 3 p.m. Room 5 Description: Plumbing installation requirements will be revised in the new edition of Chapter III in the Quebec Construction Code, which is scheduled to come into force in 2013. The presentation will give an overview of the main changes, including those for potable water supply systems. Speakers: Eric Gagnier and Yves Duchesne of the Regie du batiment du Quebec

T US AT VISI

VISIT US AT BOOT

H #

61 Booth # 313 9

See Page 66 for complete floor plan

List of Exhibitors (as of press time) Highlighted companies have ads in this issue.

GE Lighting ...............................................................................................367 General Cable...........................................................................................159 General Wire Spring ................................................................................245 Giant Factories..........................................................................................217 Globe Union..............................................................................................741 Goodman ................................................................................................3050 Granby .......................................................................................................935 Great Lakes Copper .................................................................................419 Green Turtle ............................................................................................1040 Greenway Water .......................................................................................919 Groupe Master..........................................................................................727 Grundfos....................................................................................................227 GSW Water Heating.................................................................................445 Hardy Filtration .........................................................................................139 HeatLink Group ........................................................................................405 Hebdraulique ..........................................................................................3000 Hewitt Equipement ..................................................................................251 HG Spec ....................................................................................................119 Hilti.............................................................................................................550 Holdrite......................................................................................................316 Honeywell..................................................................................................846 HPAC Magazine........................................................................................233 Hydro-Quebec ..........................................................................................260 Hydronic Systems .....................................................................................340 IBC Technologies....................................................................................1023 Ideal ...........................................................................................................151 IES Montreal..............................................................................................287 Imperial......................................................................................................840 Infosite Technologies ...............................................................................555 InSinkErator ...............................................................................................437 Intermatic ..................................................................................................153 Intertek ......................................................................................................977 Inventex .....................................................................................................455 IPEX............................................................................................................807 IPEX Electrique .........................................................................................558 Jaga ...........................................................................................................301 Keeprite Refrigeration..............................................................................967 Kidde .........................................................................................................152 Klein Tools .................................................................................................357 L.G. Energie ..............................................................................................617 L.S. Bilodeau ...........................................................................................3020 Laars...........................................................................................................509 Lajoie et Gagnon....................................................................................3032 Laplante & Assoc......................................................................................758 Lawson Products.......................................................................................916 Ledtech International ...............................................................................179 Legrand .....................................................................................................582 Lennox .....................................................................................................1060 Lenox Tools ...............................................................................................241 Leonard Valve ...........................................................................................203 Les Fourgons Rive-Sud ............................................................................759 Leviton .......................................................................................................266 Liberty Pumps ...........................................................................................407 Liebert .......................................................................................................813 Litepro .......................................................................................................485

WEDNESDAY, APRIL 17, 2013 Optimization of Systems with Wall Ventilators Time & Place: 3 p.m. Room 7 Description: Learn how the advent of a new technology originally used in cleanrooms has evolved and become a popular choice by engineers and owners. Speaker: Anthony Jonkov of Enviroair Industries

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WEDNESDAY, APRIL 17, 2013 Social Media: Tools for a Profitable Digital Strategy Time & Place: 5 p.m. Room 7 Description: Blogs, forums and social media like Facebook, Twitter, LinkedIn and Google+ have revolutionized the way companies interact with their customers and employees. Learn how incorporating social media into your marketing strategies can provide exciting new opportunities. Speaker: Alex Langlois of l’Agence de Developpement Internet Logard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3004 Loue - Froid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .851 Lumen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .559 Luminergie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .270 Lutron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .167 Lyncar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113 M & G DuraVent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .404 M.A. Baulne . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1046 M.A. Stewart & Sons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1036 Maax Baths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3010 Mainline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .921 Malco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .836 Mansfield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .441 Manuflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .733 Maria Catherina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150 Mark David . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3042 Masco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .436 Matrix Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .461 Maxi Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .540 Mechanical Business Magazine . . . . . . . . . . . . . . . . . . . . . . . . . .134 Mectra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500 Mercedes Benz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .771 Mersen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .354 Metal Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218 Midbec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1020 Milwaukee Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .541 Minotair Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1042 Mircom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .255 Mirolin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .827 Mission Rubber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .516 Mits Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1061 Moen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130 Multicam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .976 Navien . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .873 NCI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .306 Neptune Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .513 Newmac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .412 Nissan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1029 Noble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .713 Notifier Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250 Novanni Stainless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200/918 Oasis Corporation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .619 Oatey SCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .619 Oetiker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .618 Omni Vente . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .905 Ontor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .538 OS&B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214 Osram Sylvania . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .376 Ouellet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .560 Outil Pac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .867 Peerless Electrique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .383 Pfister . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1021 Phoster Industries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .374 Plumbing & HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221 Polyform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3040 Powrmatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .645 Preston Phipps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300 Priva North America . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1032 Pro Kontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145

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M e c h a n i c a l

A Division of WCM Industries, Inc.

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THURSDAY, APRIL 18, 2013

List of Exhibitors (as of press time) Highlighted companies have ads in this issue.

Quote Express........................................415 R.L............................................................845 RAB Design Lighting .............................366 RangeRack ..............................................875 Rayovac ...................................................152 RBL ..........................................................751 RBQ .........................................................714 RC Lighting.............................................375 Reed ........................................................318 RefPlus.....................................................745 Regulvar ..................................................254 Reliable Controls....................................658 Reliance Worldwide ...............................915 Reversomatic ..........................................844 RG Technilab ..........................................338 Rheem/Ruud...........................................527 Ridgid......................................................703 Riello......................................................1044 Rinnai.......................................................818 Robinetterie Jalo....................................720 Roger Faguy inc. ....................................161 Roland Lajoie..........................................518 Rosenberg Fans .....................................757 Roth .........................................................801 Royal Bath Products...............................719 Sanbec ....................................................101 Schneider Electric ..................................685 Service Wire............................................756 SFA Saniflo..............................................244 SIE............................................................900

Chapter I - Building

Sioux Chief .............................................201 Slant/Fin..................................................117 SNOC (2010)...........................................466 Soler & Palau ..........................................651 Southwire ................................................659 Spartan..................................................3036 Standard Products .................................181 Stanpro Lighting ....................................185 Stelpro Design ................................454/351 Stiebel Eltron..........................................236 Strato Automation .................................945 Systemair.................................................532 Taco .........................................................307 TB Concept ............................................314 TCP..........................................................169 Techno-Fab.............................................767 Techspan .................................................574 Tecnico Chauffage .................................133 tekmar .....................................................427 Thermo 2000...........................................820 Thermofin ...............................................304 Thermolec...............................................700 Thermoplus Air.......................................961 Thomas & Betts......................................467 TracPipe ................................................3008 Trans Continental ...................................418 Transformateurs Delta ...........................459 Tri-Dim...................................................1025 Trilex ........................................................800 TTI............................................................955

Time & Place: 1 p.m. Room 5 Description: This seminar will discuss new energy efficiency requirements applicable to residential buildings of up to three storeys and a maximum of 600 m² of building floor area. There will also be a brief presentation on draft amendments to mechanical ventilation design requirements for dwellings and owner requirements for water tower maintenance in their buildings. Speakers: Daniel Mutescu and Liliane Gras of the Regie du batiment du Quebec

Zoned HVAC Systems Regulation the Benefits of an Integrated Approach Time & Place: 1 p.m. Room 7 Description: An integrated design approach is desirable to maximize the chances of success when designing or updating ventilation systems zoning. Speaker: Antoine Lamarche of Pro Kontrol

Winpriser Plumbing & Heating - Luxury Plumbing - Electrical - HVAC - Waterworks - Fire Protection

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See Page 66 for complete floor plan

THURSDAY, APRIL 18, 2013

List of Exhibitors (as of press time) Highlighted companies have ads in this issue.

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Assessing Building Energy Performance: From Principles to Practice – Live Broadcast Time & Place: 1 p.m. Room 1 Description: This session will be presented in English. This three-hour webcast will focus on the importance of building energy performance and its far reaching implications in both new and existing buildings. From recognizing the different approaches, team skills, and knowledge needed to properly assess building energy performance, to the application of ASHRAE building audit levels, this webcast will provide viewers with an understanding of Assessing Building Energy Performance (ABEP) principles and practical application knowledge. Speakers: Christopher Mathis, MC Squared; Drury Crawley, Bentley Systems; and Jim Kelsey, kW Engineering

Steam Systems and Energy Efficiency Time & Place: 3 p.m. Room 5 Description: The fundamentals, benefits and challenges associated with steam systems. Participants will learn more about the various energy efficiency measures and ways to quantify these measures. Speaker: Hughes Joannis of Preston Phipps

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PIPING

B y P et er K lugman

REAMING Most tradesmen will choose reaming as their first operation, followed by threading, then cutting. Reaming of steel pipe is required by code. Removing the steel burr (created when cut by a pipe cutter) on the inside diameter of the pipe allows for unrestricted flow of fluids and steam. To begin the threading operation, ensure your die head has the corresponding size of dies for the diameter of pipe. Next, set the die head to accommodate for this size. Threading 1/8” to 2” pipe requires four sets of dies: 1/8”- 27 threads per inch (TPI); 1/4” to 3/8” - 18 TPI; 1/2” to 3/4” 14 TPI and 1” to 2” - 11 TPI. The ream is completed when you see the burr has been removed.

POWERING THROUGH PIPE THREADING T

hreading pipe has been popular since the 1940s. It’s used for pipe applications ranging from heating and boiler applications to potable water systems in residential and commercial settings. Today, threading is most prevalent in industrial and commercial applications, but many a shop still makes use of the threader on a regular basis. In order for threading to be effective and safe, there are a few rules to play by. Here are some best practices that can be followed for your next threading job. And for this discussion, we’ll use a sample of a 2” pipe, since that’s a common diameter you’ll come across in the field.

GET THE

SETUP RIGHT The setup of a power threader on a jobsite is very important. You must ensure that you’re able to operate on a relatively flat surface, with minimal pitch to the machine. If you need to improvise, set up the machine on a surface with a concrete base, such as a garage floor. You’ll also want to set things up as close to the power source as possible. Minimizing extension cord use is important to avoid a drop in voltage, and thus power, to your machine. If an extension is necessary, it’s recommended to use a low-gauge cord, which limits the inconsistencies of power supply on some jobsites.

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DECISION TIME: POWER OR MANUAL The first step when it comes to pipe threading is to decide between using a manual threader or a power threader. Ask yourself, “How many threads do I need to produce?” Then consider the man hours it will take to complete the job. If you have multiple threads to cut, limited man power or a power threader is at your disposal, then the power option is far and away the better choice. continued on page 78

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PIPING

continued from page 76

THREADING To begin threading, pull the die head down so it sits on the carriage. Prior to advancing the die head, start the machine to begin rotating the pipe in a forward, counter-clockwise direction. Next, advance the die head to the rotating pipe. Apply pressure after the throat of the die makes contact with the end of the pipe.

LOADING THE MACHINE

Note: The dies are designed to engage the end of the pipe at this point. That is what allows you to cut the thread under the power of the rotating pipe.

Most importantly, it’s vital to ensure the work holder and front chucks are opened to a diameter larger than the diameter of pipe you’re loading into the machine.

A standard-length thread is typically completed when the last tooth on the die comes flush with the end of the pipe. This will give you a standard length of thread, allowing you to manually thread on a coupling (approximately three turns, using a pipe wrench to tighten completely).

Know the EQUIPMENT Threading machine operations typically consist of three functions: the thread, the ream and cutting of the pipe. If your machine includes this terminology, then it likely includes built-in tools to perform these tasks. If the term “Power Drive” is used in the machine’s specification or features list, external hand tools may be necessary to perform the thread, ream and cut.

It doesn’t matter if the pipe is loaded from the rear or front of the machine, but you must take appropriate precautions when doing so.

If you’re loading 2” diameter pipe into a 2” machine, for example, then both chucks need to be opened to the maximum allowable travel. Failure to do so could risk ramming the pipe’s end into the chuck jaws, which could damage the jaws or the plates holding the jaws in place. This kind of abrupt stoppage could also injure the operator.

SUPPORT YOUR PIPE It is highly recommended that a roller pipe support be used out of the back of the machine when threading a full 20-foot length of pipe. The pipe support should be placed approximately eight feet behind the machine to ensure a level pitch in relationship to the rear chuck. Remember, you will also need around six to 10 inches of pipe extending out of the front chuck when setting the work in place. This travel distance, of course, can vary based on the type of threading machine used.

CUTTING Once the pipe is threaded, cut the pipe to your desired length. To do so, make sure the pipe is not rotating, then pull the pipe cutter down on the carriage and place over the pipe. Close the cutter wheel up to the wall of the pipe and begin rotating the pipe forward. Once the pipe is moving, advance the cutter wheel until it breaks through the inner wall of the pipe to complete the cut. Do not stop rotating the pipe until the cut has been made completely through its wall. Once the cut has been made, it is possible to perform the next task on the uncut end.

WORK SAFE In most cases, the pipe lengths will be 20 feet long. Remember that schedule 40 pipe that’s 2” thick will weigh around 3.66 lbs. per foot, and you are dealing with 20 feet of it, so use caution when transporting the pipe around a jobsite.

CLEANING AS IT THREADS It’s important to use quality thread-cutting oil when threading. Not only will it lubricate the pipe, allowing for the dies to cut through the material with greater ease, but it will also perform a flushing function, moving chips away from the work to minimize torn threads. Additionally, threading oil “cools the work,” keeping dies from heating up during metal-to-metal operation. Finally, if threading various material types, it’s important that you use the best oil for the operation. Motor oils, lathe coolants and water are not considered to be suitable for threading.

Peter Klugman is the western regional manager with Ridgid. Peter, who began his career with Ridgid’s Toronto office in 1973, can be reached at peter.klugman@emerson.com.

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CASE STUDY

B y A n d r ew S n o o k

The Children’s Aid Society of Toronto’s home office houses more than 200 professionals dedicated to the prevention of child abuse and neglect through the supporting of families and communities, as well as advocating for the needs of children, youth, families and communities. The sevenstorey design-build was originally constructed in 2006 and is located at 30 Isabella St. in Toronto. Image courtesy of Honeywell

Saving energy at CAS Toronto F

inding energy savings in a five-year-old building might seem like an unusual project to undertake, given the age of the building, but the head office of the Children’s Aid Society of Toronto is reaping the rewards of some forward-thinking tradesmen. Al Gramolini, the operations supervisor for Avison Young Property Management, (the building’s property management company) decided to enquire about potential energysaving devices available for the facility in 2010. He enlisted the help of Dave Mody, a 25-year veteran tradesman and co-owner of HVAC Dimensions Ltd. The two of them conducted an energy audit and found multiple areas where the five-year-young building could significantly improve its energy efficiency. Targets included the installation of programmable thermostats, variable frequency drives on the glycol circulation pumps and the pre-programming of carbon monoxide detectors.

Dave Mody, co-owner of HVAC Dimensions Ltd., works on one of 190 programmable thermostats installed during a retrofit project at the Children’s Aid Society of Toronto’s home office.

PROGRAMMABLE SAVINGS The largest area identified for potential savings was the replacement of the building’s thermostats with programmable thermostats. These had been left off the “must have” list for the facility during its construction. The original thermostats could not be programmed to set back the office temperature at night after employees had gone home for the day, leaving the system running all day and night. “It was really a no-brainer,” explains Gramolini. “It’s really strange that they would build a $10-million building and didn’t even put programmable thermostats in there,” says Mody. After presenting their findings to the tenant and property management company, Mody and Gramolini received authorization to go ahead with the retrofit, which included continued on page 82

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4. vFlow™ Variable Water Flow. vFlow™ variable water ﬂow technology represents a major advance in system performance. vFlow™ not only builds the major water circulation components into the unit for a clean installation, it also intelligently varies the water ﬂow to minimize energy consumption and improve system reliability. Get the entire ClimateMaster® system story by calling 1-877-436-6263 to connect with a ClimateMaster® Commercial Representative.

2. Multi-Protocol DDC Controls. Factory-mounted Direct Digital Controls lower installation costs by reducing problematic on-site wiring. Implement a variety of building automation protocols through a PC, and read fault codes from any remote location.

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CASE STUDY continued from page 80 190 programmable thermostats that communicate on a LonWorks network. These are connected to 190 ceiling-mounted water source heat pumps.

PUMPING OUT SAVINGS While checking out the various energy-saving avenues available for the CAS Toronto building, Mody suggested the installation of two 60 hp variable frequency drives on the glycol circulation pumps to reduce the speed of the pumps during times of low load.

The retrofit began in early February 2011 and was completed by mid-March 2011. The programmable thermostats were hooked up to the communication bus line, which “daisychained” from thermostat to thermostat. After that, the system was ready to be commissioned. “The computer front end hooked up to the WebVision controller, which is very user friendly and HTML based,” explains Mody. Although the commissioning was quick and easy, one challenge that presented itself during the installation was attempting to get all 190 thermostats on one bus line.

“Whenever you reduce the speed of a variable frequency drive by 10 per cent, you’re getting 33 per cent reduction in brake horsepower,” says Mody. “We’ve almost cut the electricity bill for the pumps in half.”

“This is not possible with the WebVision system,” said Mody. “It can only handle 120 so we had to split the system into two sections, provide two WebVision controllers and link them with the customer's routers. This meant getting their IT department involved.”

Two 60 hp variable frequency drives were installed on the glycol circulation pumps to save additional energy.

Parking CO emissions

FINAL SAVINGS

Another area where energy efficiency was improved was in regards to parking garage exhaust fans. Gramolini recognized that by tying the carbon monoxide detectors in the parking garage to the building automation system, to activate the exhaust fans when needed, the exhaust fan usage would be drastically reduced. The exhaust fans were programmed to activate only when necessary to keep CO emissions under the allowable exposure levels.

A new analysis of the building’s energy consumption was performed one year after the original energy audit was performed. The audit showed that the building’s energy consumption had been reduced by $125,000, yielding an 18-month payback. “It was rewarding to help out such a valuable organization (CAS Toronto), which helps out in the community in so many ways,” says Mody.

The units were previously being run every day during peak periods, without any attention given to emission levels, explains Gramolini. Energy savings were quickly realized when, months after the project was completed, records indicated that the exhaust fans had not run at all.

A TOUGH SELL

Bucks through BOMA Upon completion of the retrofit projects, the building’s owners received an incentive cheque for $70,715 from the Every Kilowatt Counts energy savings incentive program, a program offered by the Ontario Power Authority (OPA) and managed by BOMA (Building Owners and Managers Association International). Together with the incentive cheque, the projects ended up with an energy savings payback of 18 months.

M e c h a n i c a l

While working for Avison Young Property Management, Al Gramolini initiated an energy savings retrofit project that has reduced energy consumption at the Children’s Aid Society of Toronto’s head office by $125,000.

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Mody says that selling energy management projects can be challenging, especially when dealing with individuals who do not see the potential for savings. He says the more knowledgeable customers are the ones who really benefit, however. “It takes good marketing and an accurate presentation to land jobs like this one.”

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Honeywell’s Prestige IAQ thermostat is designed to control temperature to +/-1 degree and allows homeowners to also control humidity, fans and ventilation. It is available in three frame colours – white, black and silver – and its 4.3” high-definition touch screen display features a customizable colour-matching palette to match or complement home décor.

Series S CenTraVac chillers from Trane feature the company’s AdaptiSpeed technology that integrates a specific speed direct-drive compressor, permanent magnet motor and an AFD3 adaptive frequency drive. Designed with replacement and retrofit applications in mind, the chiller is offered in the 180-390 tonnage range.

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Fantech’s Flex 100H Heat Recovery Ventilator is built for small and multifamily applications that require up to 100 CFM. Its TurboTouch feature is designed to allow the HRV to deliver additional exhaust capacity where additional air flow is needed. Additional features include its ECO-Touch programmable touch screen wall control.

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ROAD WARRIOR

By Adam Freill

Did you know? • Jimmy considers himself a picky eater. • He loves gadgets. • He loves his job. “There are so many different aspects of plumbing that I am always challenged,” he says.

Photo: leclairphoto.com

Name: Jimmy Ries a.k.a Dr. J Company: Levine Bros. Plumbing Job title: Supervising Technician Age: 43 Been there: 26 Years (since 1987) Born in: Montreal Lives in: Laval, Que.

supervising technician at Levine Bros. Plumbing in Montreal, a company with roots dating back to 1922, Jimmy Ries likes to have fun at his jobsites. He’s not above asking an apprentice to run and grab the pipe stretcher from the truck, or to find that ever-elusive bucket of steam. But there’s a seriousness and pride that comes from the work that he does too. He likes a clean jobsite and installation, the things that

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make complex systems look easy, and that ensure his customers that the job was handled by a professional. His recent work at a building in downtown Montreal is a prime example of this. “I had to design heating and domestic hot water systems that would be easy for people to understand,” he explains. We caught up with him to see what he does when he’s not thinking about boilers, mechanical rooms and piping.

F a v o u r i t e t o o l i n y o u r t o o lb o x: M in i Wesco t t wr en ch Where did you go to trade school? Lester B. Pearson

Favourite beverage: Coca-Cola

Favourite thing about the job: Helping other people.

Favourite sport: Golf

If you could be an animal, what would you be? A bear

Favourite website to browse: MLS - www.realtor.ca

Favourite place to vacation: Myrtle Beach

Time behind the wheel per day: About 3 hours. Kilometres per day: 120 km Service area: Greater Montreal Area

What’s your favourite sports team? If I had to choose, it would be the Canadiens. What do you like to watch on TV? Storage Wars

Favourite food: Hot Dog

One place in the world you would like to visit: Egypt Farthest place you ever travelled from home: Saint Lucia

Any area you like to get dispatched to? Downtown

One word that describes you: Fair

Latest jobsite: Boiler room in a building on Redpath St.

If you could meet anyone, alive or dead, who would it be? Arnold Schwarzenegger

What’s your fondest memory on the job? Opening a grease trap at a movie theatre – it smelled like bubble gum.

If I was Prime Minister for a day, I would... make the people on welfare find jobs. My rule of thumb is... if it ain’t broke, don’t fix it!

What radio station do you listen to during the day? 95.9 FM Virgin radio

If I had $100,000 dollars to invest in my company, I would... buy new tools.

Favourite performer: Adele Best concert you ever attended? Bryan Adams Favourite movie: Gladiator Favourite magazine (aside from Mechanical Business): Time Favourite place to hang out: Pool hall

When I was a kid, I wanted to be a... plumber. Favourite cartoon as a kid: Spiderman Favourite TV show: The Big Bang Theory Biggest pet peeve: People not taking responsibility for their own work. It’s what we call “Passing the bucket.” For example, “We need to order a red pump.” Make? Model? Horsepower? Doesn’t matter. “You know, the red one.”

If I had tomorrow off work, I would spend the day... with my family. The best advice somebody has given you is: A head is not only to wear a hat.

Favourite car of all time: 1969 Stingray

Favourite drive-thru restaurant: McDonald’s

TRAINING

B y C ar ol Fey

LITERACY IN THE MECHANICAL WORLD iteracy is a problem for our industry. Now don’t take that the wrong way. I’m not suggesting that we have technicians who can’t read. In the vast majority of cases it is quite the opposite, in fact. They can read, but there are a lot of technicians who don’t bother reading manuals or Back in the day of the standing pilot, instructions. And with the way a common joke was that the that some manuals are written, instructions were there so you could those who do take the time to light the pilot. go through them often have a great deal of difficulty comprehending what they have read.

Carol Fey is a technical trainer who has worked as a heating mechanic in Antarctica and has published six books for the HVAC/R industry. She can be reached at carol@carolfey.com, or visit her website, www.carolfey.com.

MECHANICAL INTELLIGENCE Even given the difficulty of the language of technical material, it seems that the members of our industry are especially resistant to reading. And it turns out that there are some good reasons why “our guys” may not read well. One of these reasons is highly complimentary. “You can’t be good at everything!” Our technicians are really high in what is known as “mechanical intelligence.” They know how to fix things. They know how to use their hands. And they have a great sense of how things fit together. They can think their way through technical problems. Those who study intelligence recognize that there are several different kinds of intelligence: reading, math, music, interpersonal — the list is varied, and yes, mechanical intelligence is on there. On a jobsite, that mechanical intelligence is a valuable attribute; it’s what will get the darn boiler, furnace or air conditioner running, so it is not surprising that reading may take a back seat to it.

We say that technicians aren’t willing to read instructions. But is that word “willing” covering up for something more truthful? Might it be that in many of these cases technicians aren’t able to read and comprehend the long, difficult and often convoluted instructions? Right away this gets us into a sensitive area. But hold on. We’re not talking about technician intelligence or IQ here. What we’re talking about is, are the It is not unusual for learning disorders to go unnoticed or unaddressed, instructions able to be read by those especially once we leave elementary and secondary school. Take, for who need the information? example, dyslexia. The word simply means “has difficulty reading.” It is estimated that 15 to 20 per cent of people have this inherited “disorder” We all assume that the instructions are that makes reading challenging and slow. But it’s rarely mentioned, perfectly fine. And we often believe especially as we hit adulthood. that if the technician can’t read them, there must be something wrong with Dyslexia can be overcome if identified and treated. But often that doesn’t the technician. But that’s not happen. I have a cousin who told me he thought he was just dumb until he necessarily so. Maybe there’s something was diagnosed with dyslexia in his 40s. wrong with the instructions. How It’s important for all of us to realize that dyslexia is common. And we all would we know? No one reads them! need to know that reading ability and IQ are not related.

LEARNING DISORDERS

continued on page 90

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But even if the technician tries and it doesn’t work out, what’s he going to say? He’s not going to say, “I can’t read this.” Instead he says something like, “I don’t need no ‘blanking’ instructions.” Not being willing to read plays out a whole lot better than not being able to comprehend an overly complex instruction manual. The fact is that every piece of writing can (and should) be given a simple test for readability. A publication known for its readability score is the Reader’s Digest. It’s written at a level that any ordinary reader can get through an article easily – kind of like Mechanical Business. It is too bad that technical manuals aren’t written this way. There are some formulas to determine reading level. Put simply, shorter words and shorter sentences make for an easier reading level. For example, the word “show” is at a lower reading level than the word “demonstrate.” In some circles, this is called using plain language principles.

Some people are passionate about not “dumbing down” anything. But what’s more important, sticking with how difficult technical manuals have always been, or making the information accessible to technicians? If instructions are easier to read, even champion readers can benefit. They can get information more quickly and more clearly. Retail consumer products are coming with instructions that are all, or mostly, pictures and symbols, so why not aim for more pictures and fewer words in our technical manuals as well? Let’s have short and precise sentences. But most of all, let’s have all of the important points made clearly: • Do this; • Now do this; and then • Test this.

SELF-DIAGNOSTICS NATIVE TONGUES Another obstacle to reading technical material can be the language it’s in. If the person’s native language is French or Spanish or Russian, will instructions in English make sense? They may not, but that is not a reflection of that person’s intelligence or technical ability. Even if these technicians converse in English perfectly well, as we already know in this industry, it is one thing to speak the language, and quite another to read it.

I’m a fan of using the lowest reading level possible for technical information. The subject matter can be challenging enough without making the language difficult.

It’s too bad that people spend hours in English class learning to string multiple ideas together in compound and complex sentences. Simple sentences are so much easier to understand. This is a simple sentence: “Mount the thermostat.” This one is complicated: “Using an appropriate screwdriver, firmly attach the thermostat to the wall utilizing the enclosed screws and accessories.” Unfortunately, technical material is often more like the complicated

EASY READING

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Some people suggest that self-diagnostic controls are the alternative to reading. Just look at the LEDs to see what’s wrong. But there’s a problem with that. Somehow the technician has to know what it means when a particular LED is on. And how does he find that out? As things stand now, he learns that by — what else? Reading the manual!

sentence than the simple one. Some people even believe that the more challenging the subject matter, the more complicated the writing must be. Actually the opposite is true, especially when the subject matter is difficult. Sentences need to be simple so that the meaning can be perfectly clear. As a technical writer I learned something by accident. I could gloss over a technical point I wasn’t clear on by putting it in a complicated sentence. Wouldn’t that be a lot easier than tracking down the engineer for an explanation!

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Guest Editorial - By Kevin Gill

Kevin Gill is 24, and is an outside sales rep in Southern Ontario with Master Group L.P. He can be reached at kgill@master.ca.

The next 50 years ince I was 14 years old, I have been actively involved in the HVAC/R industry on various fronts. From working the tools, to selling at wholesale, I have met a myriad of folks that have brought this industry to life and have carried it forward for the past half-century.

However, thoughts about carrying it for the next 50 years elicit more questions than answers. The youth just aren't coming fast enough to keep up with an ever growing demand for new technicians, and with retirements looming, the situation is getting worse. This desperate need for new blood has prompted me to get engaged and find a way to better seek the answer to a critical question: “Who is going to be working for you in the next 10 years?” Unfortunately, talking amongst ourselves is not getting the message out to those who need to hear it. We need help from our high schools, colleges and universities – but we cannot afford to wait on the schools to discover our needs and opportunities. We need to target students in high school. These are people who are just beginning to think about what they may want to do for a living. They need to know that we need them and that the rewards are there. This industry is not a one-way street.

What can we do? • Drop off some baseball caps and some informative literature for the students who are going into a co-op class. • Approach a school to have a co-op participant in your truck or behind your counters. • Make contact with colleges and universities to have pre-graduates or graduating students out to an industry training course. • Let students get their hands on products. Kinesthetic learning is a key element in this industry.

So how do we get teachers and guidance counsellors active in explaining why the trade is a good choice? Perhaps we need to make contact with them, showing them recent examples of success stories, and the success stories of young people who, because of a solid career choice, are buying their own homes and cars, starting families, and making positive contributions to society, all long before they hit their 30s. This is an industry that provides sterling compensation and a lifelong career for those who prove themselves, but we need to control our message, and deliver it in a way that will resonate with educators, students and parents. We need to inspire the uninspired. What are the repercussions if we don't find a solution?

Once they are here

It’s simple... There will be 10 problems for every one technician. There will be five counter people for every one with adequate knowledge. And, there will be an ever growing need for OEM support for all of us. The future of our trades relies on recruiting new members, so encourage students to visit our shops; encourage them to try the tools out; and most of all, show them that they will be welcomed into an industry that provides manageable challenges and great rewards to those who can see past the oldschool thoughts of white and blue collars.

M e c han ic al

B us in es s

04.1 3

Are we doing everything within our industry to ensure those who have decided to join us actually stick around?It is imperative that we ensure the youth coming in have all of the support they need when they arrive, and nowadays that means more than a truck and a full set of tools. It could mean offering continued education, up-to-date computer systems and phones, and maybe even some creative compensation. Young people want more than just a job, and if their interests are not met by their employer, well, it’s not uncommon for them to move on. We need to find out what drives them, and address that to make them feel like part of the team.

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THEORETICAL DESIGN CONSIDERATIONS I made several assumptions in the examples cited in this article. For example, I am assuming that the load pumps could be set for a low flow (or could be zoned with valves). Other assumptions include a flow velocity of at least one foot per second; that the emitters were capable of delivering even heat distribution at a 40°F ΔT; a 40°F ΔT was possible using these emitters with this flow rate; there were no loads elsewhere in the system that required more than five gallons per minute; and that any in-floor heating has a specific design pattern that minimizes the variance in floor surface temperature from one end of the room to the other. A lot of inconvenient things happen if you disregard these design considerations. If your flow velocity drops too low, you could lose heat transfer at the emitters. If you don't plan your emitters and choose carefully, you may not be able to predict performance, never mind calculate it. If you are forced to use especially small pumps, cost may actually increase since these smaller pumps are not as prevalent in North America as they are in Europe.

B y E r ic Riml

ΔT

Eric Riml is a certified hydronic designer working in Calgary, Alta. He can be reached at feedback@hotwaterheating.info.

High on the

ith the advent of modulating, condensing (mod/con) boilers, does the typical design philosophy of a 20°F ΔT make any sense anymore? Let's look at some examples.

boiler wants a certain pump, and a certain flow rate. Oh, that's fine, you say. We'll just run our load pumps slower and that will bring lower water temperatures back to the boiler loop.

The basic gpm-to-BTU short-form formula is gpm = BTU ÷ 10,000. If we delve further into the formula, we find out that it is based on an assumption of a 20°F ΔT , or gpm = BTU ÷ (500 x ΔT ).

Let's take a look at that:

This relationship indicates that if we double the ΔT, we reduce the gpm by half. But so what? The main idea of increasing our ΔT is to allow us a cooler return water temperature, which then allows our mod/con boiler to dip into its condensing range at a wider range of supply temperatures, resulting in higher efficiency. But wait, the boiler manufacturer told us that the

Fig 1

Fig 2

In the first example, we have a 20°F ΔT load that requires five gpm at 160°F. Rearranging the formula, we get BTU = gpm x 500 x ΔT, which equals 50,000 BTU. Our boiler loop is, for this example, supplying twice that BTU, with 10 gpm. Our boiler may have modulated downwards to produce this temperature, but based on the (static) boiler pump setting and the supply temperature requirement, it will still produce the 10 gpm at 160°F. So what happened? continued on page 96

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continued from page 94

Even though we doubled the load's ΔT, once the return water mixed with the boiler loop stream, the end result was the same temperature. This would occur regardless of whether we used a primary-secondary or a supply-return loop because there will still be mixing of the return temperatures before the return water reaches the boiler. So, assuming the manufacturer doesn't object, what if we simply reduce the boiler loop's flow rate?

Fig 4

Well, all this sounds rather inconvenient. Suddenly I can't use all my typical piping guidelines. I have to do all this calculation. And I might be limited in terms of my choice of pumps and terminal units. What's the upside? We still have the primary advantage of lower return water, and higher efficiency through condensing. Also, assuming that reducing pump size puts us into a sweet spot for pump cost where we can save money, we can quote lower. We can further reduce costs because lower flow rates mean smaller pipe sizes, expansion tanks, and air and dirt separators. In conclusion, be aware that using higher ΔTs in a system is a tool in your design toolbox that can result in a less costly and more efficient system, but probably shouldn't be adopted in every installation.

Fig 3

What if we have a high-flow load, with a high temperature requirement, like DHW? We shouldn't drop the return temperature below 140°F because we won't have enough differential between the water we're trying to heat and the supply water. Admittedly, this statement is a slight simplification, because as we're heating the DHW water, the cold water coming in will be much colder than our 135°F target DHW temperature, however, you still need a significant differential between the supply water and what you're trying to heat.

GETTING THE LOW TEMPERATURE RETURN Regardless of what we do with the loads, we're not going to get lower water temperatures back to the boiler unless: 1. We can modulate the boiler's flow rate to match the flow rate of the load(s) being served.

MAKE THE CHANGE EARLY, NOT LATE

Changing the ΔT must be done at the design stage. Do not try this in an existing system as a retrofit. There are too many factors at play, some of which are difficult to change or determine, such as pipe sizing throughout the system. It may also be difficult to determine the performance characteristics of existing, older terminal units at different flow rates and ΔT.

2. We can lower the boiler flow rate to provide a higher ΔT within the boiler loop itself. Of these two possibilities, the first is much more complex in terms of required controls, boiler flow requirements, and coordination of multiple loads. The second situation seems simpler, but has some system design challenges associated with it.

COMPONENTS, TIME AND MONEY The advantages of designing for higher ΔT seem to match best with large residential and commercial systems, systems where it is possible to save more money on components than it costs for the additional design time. Furthermore, the slight efficiency gain from lower water temperature should be significant enough that the building owners will notice the difference between your installation and other similar buildings.

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Matthew Reid is a heating technician in the HVAC and Hydronics Department at Desco Plumbing & Heating Supply Inc. He can be reached at matthew.reid@desco.ca.

M a tthe w R e i d

MATCHING POWER TO DEMAND (AND COMFORT)

y now everyone should know what an ECM, or Electronically Commutated Motor, is. Whether you call it a DC motor or a variable-speed motor, the technology has been around long enough to know that it uses less electricity, which equates to savings for your customers.

B MAKING MECHANICAL HISTORY

This type of motor was introduced in the mid-ʹ80s and has revolutionized the HVAC market by leading us down the path of variable speeds. While relatively expensive when it first hit the market, advancements in production and demand have allowed the industry to close the gap between comfort and price when it comes to forced air heating. ECM motors come from the factory set up to deliver constant airflow in spite of changing circumstances, thus ensuring comfort.

Although the ECM motor came about in the ’80s, it wasn’t really until the 2000s that the technology really took off, partially due to the price coming down and also because of a government rebate

These circumstances can be an over-ride from a homeowner looking for more heat, or they can be the result of more gradual changes in a system. Take for instance the homeowner whose furnace filter is found wrapped around the housing of the blower wheel completely caked in dust and debris. (If you have ever done a duct cleaning at a home with children in the household, chances are you have found a ninja turtle or two in the supply lines.)

program that kicked in enough to offset the price of the unit. Once the ECM technology took off and homeowners educated themselves about the savings this could provide, it opened the door for all sorts of technological developments for forced air. Modulating gas valves, outdoor reset, humidity control. All of these technologies followed, and the once standard on-off furnace was now a technological marvel that

An ECM motor will never let these little air flow inhibitors interrupt its operation. It varies its speed to deliver the air flow it is told to deliver. This eliminates hot and cold spots in the house and provides consistent temperatures. The way an ECM motor maintains constant CFM is to vary its output by increasing or decreasing its amp draw, and it knows to do this through its onboard computer. Retrofit ECMs use a set power output and, as such, will not change their blower speed. You can, however, change the horsepower level during install. This is how you can dial in the airflow you are looking for and still get the power savings over the standard PSC motor being replaced.

could dial into a homeowner’s comfort level with considerable efficiencies.

continues on page 100

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continues from page 98

Why variable?

FULFILLING HOMEOWNER DEMANDS Since the invention of the condensing high-efficiency furnace, only marginal increases in furnace AFUE rated efficiencies are available in furnaces now. Opportunities to further dial in the comfort level and overall system efficiency in a home have contractors and manufacturers exploring modulating gas valves, humidity control and, of course, the use of ECM motors. Existing furnaces that are over the five- or 10-year mark are prime candidates for ECM technology, and homeowners are aware of the buzz circulating around the industry of a variable speed furnace and the efficiency and comfort levels it can bring to their home.

Variable speed makes a lot of sense when you think about it for just a moment. We have variable temperatures, so why not have variable speeds for our HVAC equipment? By using ECM technology we are able to dial closer into a home’s comfort levels while also increasing system efficiency.

How it works In an ECM motor, a permanent magnet rotor is surrounded by motor windings (electro-magnets) and an internal microcontroller sequentially connects DC current to each winding. This causes the motor to turn. The pulses of current dictate the motor output and rotational direction. As a rotor magnet passes a deenergized winding, it generates an electrical current. The ECM microcontroller monitors this current, and uses the information to adjust the motor’s torque and speed.

They are going to be asking for it. As a contractor you have a few options here: 1. Sell them a new high efficiency variable speed furnace. 2. If the furnace is working fine, keep the furnace but replace the old PSC motor with a retrofit ECM. The latter of these two options is something that may come with a bit of controversy with regards to performance, but while they do not match the performance of a new furnace with an OEM ECM motor, the retrofits do work. They just have a set airflow rate.

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COMMERCIAL WATER HEATERS P a ul M c D o n a l d

Paul McDonald is the general manager of Bradford White-Canada Inc. He can be reached at pmcdonald@bradfordwhite.com.

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DON’T FORGET THE VENTING If new, high-efficiency water heaters are planned as a retrofit, existing, single-wall B-vent must be replaced in favour of ULC listed S636 PVC, CPVC or polypropylene plastic. The majority of venting lines are three or four inches in diameter, precisely matched to the design requirements of new blower motor assemblies that discharge from the top of water heaters. Plastic vent materials are inexpensive and easy to work with, and yet present no compromise in safety or performance. Some new water heater systems have the ability to vent through the roof and pull air in for combustion through the wall. This is a big advantage. The need to improve flexibility of installation and placement has driven the development of power, power direct vent, through-roof, and side-wall venting options. Finally, if the application offers abundant atmospheric combustion air, some water heater models do not require balanced venting. A single pipe vent for exhaust may do.

T I M E S

mergency repairs and service jobs happen all the time in this business, especially during busy periods like Christmas, Easter and any of the other holidays when restaurants, hotels and other such service providers ramp up their operations for the family gatherings and events of their customers. Often times these sorts of calls result from older equipment, or units that have not been serviced regularly, and either of those scenarios spell opportunity for contractors.

On the service side, an emergency call can turn into a long-term maintenance agreement, and that’s a good thing. But it does assume that the equipment in question is working efficiently, and is in serviceable condition. When the equipment is a bit past its prime, or is no longer delivering a cost-effective domestic hot water option, replacement should be discussed with the business owner. And with new equipment, many of these clients will be surprised at the differences between the “old beast in the basement” and today’s modern commercial water heating solutions. Take, for example, a restaurateur who needs half a million BTUs of water heating at the height of his busiest season, and puts an emergency call out to revive his old, leaking water heater – a beast of a machine sized for peak load, making it at least 20 per cent too large 90 per cent of the time. A big, gas-fired atmospheric system like his could be replaced by a 400,000 BTUH condensing unit that would be smaller in size, a whole lot less expensive to operate and – if need be, and if space is available – could be coupled with a smaller indirect water heater to meet peak loads. The new water heater will offer a much greater recovery rate, and also be a lot less burdensome to install than the old one, not requiring the large, ducted air vent. A threeinch PVC air intake and a three-inch PVC flue gas discharge is a lot easier to route and navigate, and comes continues on page 104

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Neutralizing drain concerns

with additional benefits as well.

With modern condensing water heaters, condensate drainage is a likely necessity. Often, fluids to be drained are too acidic for metal drain lines. Routing the condensate through a simple, lime-bed acid neutralizer may solve the problem easily. Better yet, CPVC or PVC drain lines can handle the acidity.

Sealed combustion eliminates one of the trickiest challenges with commercial facilities where food is prepared. Large ventilation hoods are known for stealing combustion air from atmospherically-fired systems, but that’s no longer a problem when the combustion and exhaust air comes and goes directly from outside.

Condensate typically has a pH of 4.0, about that of Coca-Cola – just enough to attack any metal it connects with. Over time, the cumulative effect of exposure to acidic runoff threatens the integrity of the drain lines.

water heater systems, making it much easier to achieve manufacturer-specified combustion air or venting runs (see sidebar “Making a positive change”).

Not long ago, contractors, engineers and building owners were routinely challenged by an inability to easily place and locate commercial water heaters. The limitations of atmospherically-vented systems, facility design, aesthetics and close proximity to other buildings all factored in.

The arsenal of commercial water heater products and associated technology has grown considerably, availing a wide range of fuel, venting and combustion air options. There are also many new application-friendly components and techniques to enable trouble-free specification and installation. However, with the new green systems, a few new needs emerge (see sidebar “Neutralizing drain concerns”). Higher efficiency, condensing systems are great for end-users in terms of energy consumed, chiefly because they harvest heat from waste condensate. The energy advantage requires modest design and installation changes to meet the need for condensate treatment and drainage, and may translate to an inability to use existing venting, but the benefits far outweigh the costs, especially if the existing equipment is past its best before date.

Today it’s not uncommon for facility managers to express an aversion to visible venting, based purely on aesthetic reasons, sometimes late in the timing of a project. This is especially true in historic districts. Fortunately, many of the obstacles to easy placement of water heaters – at least those tied to building design and construction – are overcome with the emergence of new

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MAKING A POSITIVE CHANGE

Check the certification

Historic settings are commonly guarded by restrictions that regulate the presence and appearance of modern building systems and attachments (i.e., wire, regulators, transformers and venting), but that is not always a hindrance to selling a retrofit project. In fact, the presence of old and unsightly or loud venting systems has actually encouraged the replacement of aging atmospheric water heaters with more efficient condensing products.

New codes are forcing all of us to be attentive to a broad range of emerging requirements. National, provincial and local codes are changing in the wake of the green movement’s more stringent environmental policies and initiatives. Among the applicable national codes is the need for water heater systems over 399,999 BTUH and/or 120 gallon (U.S.) and larger, to be ASME-certified.

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PLUMBING

The Indulge Modern from InSinkErator features a dualfunction handle that offers filtered water and hot water upwards of 93°C (200°F) and an automatic hot water shut-off. It is available in chrome or satin nickel finish.

www. insinkerator.ca

Intended for high-design environments such as contemporary restaurants and hotels, Sloan’s Designer Series sink is available in 25 colour options, in natural stone or a solid-surface material. The sink can be ordered in 24”, 60” and 90” widths, or in custom dimensions with one to three user stations. It can be integrated with any of the brand’s sensor-activated faucets and soap dispensers.

The Energy Valve from Belimo is a two-way pressure independent control valve designed to optimize water coil performance. The valve uses a proprietary ΔT algorithm to directly control coil performance. It also monitors the coil performance characteristic curve and resulting energy and power output, and communicates data to the DDC system via BACnet MS/TP, BACnet IP and TCP/IP for Building Automation System (BAS) integration.

www. belimo.com

www. sloanvalve.com

Duravit’s Architec is a water-free urinal that uses a dry-flush hose membrane to operate without water and an organic gel cartridge to reduce odours. The unit’s membrane requires replacement every 7,500 flushes, and the gel contains a mix of pH-neutral cleaning ingredients to reduce maintenance. The urinal can be operated without water pipes and tap fittings, or can be adapted to work with existing inlet and outlet holes.

Made from acrylic and available in oval and rectangular designs, the Brooke and Beacon baths from Mirolin come pre-trimmed and in two pieces. The tubs include a centre drain, integral slotted waste and overflow, and a steel frame with self-levelling feet. They will both accept a deck-mounted faucet.

www. mirolin.com

www. duravit.com

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PLUMBING The Bell & Gossett submersible high temperature sump pump from Xylem Inc. is designed to handle corrosive, non-corrosive and clear or solid laden liquids upwards of 200°F. The pump features silicon carbide mechanical seal faces and cast iron construction. It is capable of running dry without damaging components. It has a 70 gpm maximum capacity.

Moen’s Rizon collection 6900 lavatory faucet has a chrome finish and is built with one-handle lever design for simple use. It has an aerated flow for everyday use and a maximum flow rate of 1.5 gpm (5.7L/min) at 60 psi.

www. moen.ca

www. xylemappliedwater.com It has been estimated that 85% of pharmaceutical drugs that we ingest leave our bodies through urination.

Pentair’s Aurora IntelliBoost constant-pressure variablespeed booster system is designed for managing complex water systems in commercial, industrial and municipal buildings. It features IntelliManager for configuring system settings to a user’s needs and for controlling settings remotely via Ethernet connection. Its programmable logic controller (PLC) with a proportional integral derivative (PID) loop can stage up to four pumps.

www. aurorapump.com

Pfister Thermostatic Shower Panels feature four water outputs: a large showerhead with rainfall effect, a handheld showerhead, swiveling massage water jets and a tub-filling water spout. The panels have two knobs, one for controlling functions and one for controlling water pressure and temperature, and are designed for retrofit or new installation.

www. pfisterfaucets.com

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American Standard’s Champion Pro features the company’s siphonic flushing and powerwash technologies, a 4” piston-action accelerator flush valve and a 2-3/8” inch trapway. The toilet can flush 2.2 lb. of solid waste and is equipped with metalshank fill valves and metal trip levers (available in chrome, satin and oilrubbed bronze finishes).

www. americanstandard.ca

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HYDRONICS

B y Nick P ellegrino Nick Pellegrino, owner of Pellegrino Inc., is a self-proclaimed Wet Head, and a hydronics industry veteran who is always available for consultation on plumbing and heating systems. He can be reached at npellegrino@cogeco.ca.

IAQ and the hydronic comfort equation ith today’s HVAC systems being more likely to be made up of many different types of systems (a hybrid of technologies), and as building standards change, and as consumers arm themselves with more knowledge, we need to prepare ourselves to be able to outline good, better, best mechanical system scenarios. These will give customers the solutions they need to be comfortable in their living spaces, and indoor air quality (IAQ) must be part of that equation.

Not only are you being asked how you are going to heat the building, but also how to cool it, and ventilation now plays a big part as homes are being built tighter, and expectations of comfort are on the rise.

LIVE BY THE CODE The system may have boilers, tankless water heaters, air handlers, heat exchangers, an air conditioner and an HRV, all assembled together to form one system – and don’t be surprised if all of that can be controlled by a mobile device. Some mechanical companies are well aware of this and are offering an excellent level of service by having a plumber or steamfitter, a sheet metal worker, a refrigeration mechanic and a gas tech on staff to provide one-stop shopping to end consumers and general contractors.

Building officials are well aware of the installation code for hydronic systems (CAN/CSA-B214-12) and are making sure that contractors comply with it. If you are not familiar with the code, or are looking for some training on the code, contact the Canadian Hydronics Council (www.ultimatecomfort.ca).

PUTTING HEALTH ABOVE CASH

It is important that there is good communication between the HVAC system designer and the system installation team so that all the proper steps are followed to achieve the level of IAQ and heat or cooling desired by the customer.

It’s always a challenge to juggle budgets when it comes to heating systems and homeowner demands, but if IAQ is important to the end user then price is likely to be less sensitive. Provide your customers with a well-planned and installed hydronic system, and explain to them the benefits and necessity of a good ventilation strategy. With the growing number of asthma cases, and the relationship of asthma and other breathing conditions to air pollutants, it makes sense to offer the best IAQ possible, and this includes the incorporation of an HRV system into the building’s mechanical system.

A good designer will put the proper components together so the system will not only meet the demands of applicable building codes and standards, but also the demands of the customer. If infloor heating is the main heat emitter and the home does not have an air conditioning system, then many codes and standards will require the inclusion of an HRV or ERV. This helps ensure continued on page 110

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HYDRONICS

COMMERCIAL PLUMBING

continued from page 108

that proper air exchange occurs, improving the comfort level of those living in the space. Not only do we need to conduct a proper heat loss/heat gain calculation for the building to ensure that the space is not over- or under-heated, but air exchange calculations will also be needed to ensure the living space has a comfortable level of air quality. The size of the space, the insulation in the walls and ceiling, the ratings of the windows, and several other non-mechanical factors will ultimately determine what equipment is needed.

A SYSTEM FOR ANY HOME A basic hydronic heating system can be very affordable, and homes of any square footage are candidates, even attached and row houses. That thermal mass in the basement is an excellent way to help with the heating of the structure, and with more people using their basements as living areas, a bit of infloor heating is a great selling feature to a homeowner. Todayâ&#x20AC;&#x2122;s boilers can handle the domestic hot water needs, as well as the space heating needs from a single heat source. And with a combination of infloor and air handlers, air conditioning and ventilation needs can be addressed in a single, unified system.

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HYDRONIC Pressure reducing valve Taco’s 3350 pressure reducing valve is used to automatically feed water to a hydronic system whenever pressure in the system drops below the pressure setting of the valve. It is suitable for systems with fill pressure requirements between 10 and 50 psi and features a fast-fill button with automatic reset.

Variable speed wet rotor circulator Designed for commercial hydronic applications, the Magna3 circulator from Grundfos uses an auto-adapt function to automatically and continuously adjust the circulator performance. Features include a permanent magnet rotor, a variable-speed electronically commutated motor (ECM) and a differential pressure sensor. Offered in more than 35 single and twin models in cast iron or stainless steel, they offer maximum head to almost 60 feet and maximum flow to approximately 570 gpm.

www. taco-hvac.com

www. grundfos.ca

Solar thermal storage tank

Boiler sequencing The tekmar 284 boiler control can sequence up to four condensing and non-condensing boilers (modulating, single or two-stage) to offer a target temperature based on outdoor temperature reset, domestic hot water and a fixed setpoint. Features include: read/write access options through BACnet, Modbus and tekmarNet standby primary pump operation and pump exercising; dedicated or indirect domestic hot water with priority; energy, flow and pressure monitoring; combustion air damper control; and programmable schedules.

Lochinvar’s Thermal-Stor stratified solar thermal storage tank is intended for use with solar thermal and ground source applications. Operating as a storage tank and buffer tank, it is designed for use with hydronic space heating systems. The unit is available in nine models ranging from 125- to 900-gallon capacities.

www. lochinvar.com

www. tekmarcontrols.com

Low-temp perimeter heating The Heating Edge HE2 baseboard heater from Smith’s Environmental Products uses a two-pipe design that allows it to work with low-temperature systems delivering heating fluid to the terminal unit as low as 90°F. The heaters are available in a variety of lengths, from two to eight feet.

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HYDRONIC Integrated terminal unit Jaga Climate Systems’ Clima Canal is designed for installation into a floor or wall. It features telescopic height adjustment technology for seamless alignment between the grille and surface, and is built to help prevent condensation from accumulating when installed alongside windows.

www. jaga-canada.com

Indirect tank The Vitocell 100-VH/BH series from Viessmann features two heat exchanger coils to integrate solar thermal and boilers with DHW production. The single-coil and dual-coil tanks are offered in 300 and 450 litre sizes and feature a glass-enameled steel construction, with the option of a standard 1-1/4” consumable magnesium anode or a 220V electronic anode. The units have two inches of CFC-free foam insulation, a fitted nylon insulation jacket and are available with an optional 220V electric heating element for additional DHW heating flexibility.

Condensing boiler The wall-mounted, condensing Mascot II boiler from Laars is offered as a 125,000 BTUH input boiler or combination boiler and water heater. It has a cabinet size of 31” x 17” x 15.75” and weighs 100 lb. The low-NOx, sealed combustion, fully-modulating system is equipped with a built-in condensate trap and auto air-elimination vent.

www. viessmann.ca

www. laars.com

Infloor heating tube Zurn’s hy-PE-RTube is made using DOWLEX 2344 resin from Dow. It has five layers to help reduce noise while offering protection from oxygen permeation. It is available in nominal sizes from 3/8” to 1”.

High efficiency condensing boilers NTI’s Trinity stainless steel fully modulating condensing boilers are available with inputs ranging from 46,000 to 151,000 BTUH. The low-NOx units feature a 5:1 turndown ratio, outdoor reset control and AFUE ratings up to 94%. They offer venting up to 150 feet, and are available as combination units to provide both space heating and domestic hot water.

www. nythermal.com

www. zurn.com

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CASE STUDY

B y Den ise Deveau

THE BUILDING Address: 2 Armel Court, Toronto Building type: 18-storey apartment complex Number of units: 253 Project team: Complete Mechanical Heating & A/C Myriad Project Management HPG Sales HTS Engineering

Swap-out project doubles up on savings n equipment upgrade can often involve some pretty heavy lifting, but that turned into a bonus situation for Craig Flatley’s team at Complete Mechanical Heating & A/C when they were contracted to do a make-up air unit replacement, due to cracked heat exchangers, for a multistorey apartment complex in Toronto.

THE CHILLER Old system: 300 ton chiller; R-11, previously converted to R-123 Potential rebuild cost: $50,000 New equipment capital cost: $200,000 Grants/rebates: $32,000 (one-time) Operational savings: $50,000 (costs associated with rebuilding of the old system) Estimated payback: 2.5 to 3 years Commissioning date: June 2013

Given that the removal and replacement of the old unit, which entered service in 1985, would require a crane, the owners were looking at an additional $10,000 price tag on the project. As it turned out, the chiller system that had been installed the same year as the MAU was also due for a very costly rebuild, so with the crane already on order, the decision was made to replace it as well. Replacing both systems was an easy decision on the part of the owners says Flatley. “The crane cost was a big factor in all this,” he explains. “It made sense to take advantage of the time we had to get everything done at once.” The chiller replacement was a straightforward swap-out to a much more energy-efficient unit that could do the job at one-third the energy costs. The make-up air units (MAUs) proved to be an interesting project, since Complete Mechanical Heating & A/C was the only contractor in Canada selected to test drive a brand new prototype from Sterling HVAC.

CHILLING RESULTS In investigating the chiller issue, Flatley quickly found that it made much more sense for the owners to go with a new energy-efficient system rather than spend $50,000 on a rebuild of the existing one. “By the time you added in the energy savings, rebates and savings from not doing a rebuild, payback was going to be about twoand-a-half to three years. The decision was pretty much a nobrainer,” he says. The original 300-ton centrifugal chiller had already gone through a conversion from R11 to R123 in 2008. That also meant it would require a rebuild within five years. The new frictionless system by Daikin McQuay that was selected for the installation uses magnetic bearing compressors, eliminating the need for oil in the refrigerant. The two compressors are run by variable frequency drives (VFD) to improve control of loading and lower start-up running amp requirements. As part of his research into the swap-out, Flatley approached PL Group to find out about available grants for systems that use magnetic bearing compressors. “We were told about $30,000 after engineering costs,” he says. continued on page 116

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NEW TOOLS FOR YOUR TRADE.

INTRODUCING THE ALL-NEW 2014 FORD TRANSIT* AND 2014 TRANSIT CONNECT ** Their innovative designs and technology, plus tremendous ﬂexibility and capability, will make them a welcome addition to any job site. With multiple body styles, various lengths, your choice of advanced powertrains, and even 3 roof height options on the full-size Transit, we have a Built Ford Tough® solution for every aspect of your business. You’ll get the job done quickly, and done right. Visit www.ford.ca/commercial-trucks/transit and www.ford.ca/commercial-trucks/transitconnect-commercial/2014 to learn more.

*2014 Transit T-250 High-Roof LWB Van. Oxford White. Optional equipment shown. **2014 Transit Connect XLT Van. Frozen White. Optional equipment shown. Transit Connect – available late 2013 Transit – available early 2014 Pre-production vehicle shown.

CASE STUDY

continued from page 114

THE MAKE-UP AIR UNITS Beyond the rebate, the biggest selling point was energy efficiency. The old chiller cost more than $65,000 a season to run. Projections for an energyefficient alternative would drop those energy consumption costs to $22,453, Flatley reports. “That was more than $43,800 in savings a year on energy consumption alone.” They also found that they could go with a 260-ton system, and VFDs were installed on the condenser pump and cooling tower fan to add to the energy savings. In comparing notes, the NPLV (non-standard part load value) efficiency dropped from 1.1 to 0.33. “The magnetic bearings are the biggest contributors to the efficiency improvement,” Flatley explains. “That’s what makes it run a lot cheaper.”

Old system: 15 HP belt driven 2,100,000 BTUH at 60% efficiency Problem: Cracked heat exchangers New system: Xcelon from Sterling HVAC Products Energy consumption: Approx. 50% reduction Commissioning date: February 9, 2013

MAKING UP FOR MAKE-UP AIR In discussions over what equipment to buy to replace the existing make-up air blower package, Flatley got wind of a new prototype unit being tested by RBI, so he pushed to be the Canadian beta site. “These new systems have packaged hydronic units with 97 per cent efficiency boilers,” he explains. Because they’re smaller than the original unit, they installed two systems. “We had lots of room to play with so it wasn’t a problem.” Called the Xcelon, the units combine condensing hydronic boilers with air distribution to achieve maximum operating efficiencies up to 98 per cent. The system uses a 35 per cent propylene glycol mix in a closed loop system, and features an advanced temperature control system designed to reduce cycling and improve temperature distribution accuracy across the air stream, leading to lower operating costs and improved comfort.

Perfect Match

in Perfect Form

Flex HRVs are speciﬁcally designed for high-rise apartment applications, condominiums and town houses. It is truly a perfect match for the ECO-Touch wall control. TM

The ECO-Touch is a touch screen wall control providing the contractors and homeowners with a higher level of control over indoor air quality. TM

Further energy savings are gained by the heat loss recovery system, which recovers waste heat from the VFDs, circulator pumps, fan motor and boilers. Flatley notes that since commissioning the units in February, they’re using a little over half of the kilowatt hours of the old system. According to Eric Irmscher, product manager at Mestek, manufacturer of the Sterling products, Canada was an ideal climate for testing some of the prototypes. “We had 10 betas available. Of those we selected three for Canada because we wanted to put it through its paces and test its efficiency in colder temperatures.” He says the biggest feature is the high thermal efficiency. “You can actually get up to 98 per cent efficiency depending on what your desired discharge air setpoint and outdoor air temperatures are.” The system uses a closed propylene glycol loop to transfer the heat to the air stream to eliminate air stratification issues. Despite structural differences, the unit requires the same connections as any other make-up air unit.

fantech

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As the only contractor in Canada to work with the prototypes, Flatley says he has already installed the third unit in a low-rise apartment complex installation in Toronto.

Compression tape Masters Stretch and Seal compression tape is designed to temporarily stop water, air or steam leaks of up to 150 psi at temperatures of -130°F to 500°F (-90°C to 260°C). The tape is non-adhesive, so it works well on many types of piping including galvanized, copper, PVC, PEX and cast iron. It is offered in 1” and 2” wide rolls.

Adjustable wrench Channellock Inc.’s 30-in. 830 adjustable wrench has a jaw capacity of up to three inches and is constructed from chrome vanadium steel. It features a reinforced joint, with a 1-1/2” thickness and 6.3” width. It weighs 12 lb.

www. channellock.com

www. gfthompson.com

Wi-Fi enabled video inspection The iBorescope (DCiS1) from General Tools & Instruments is a video inspection system that uses Wi-Fi and a free app to allow technicians to wirelessly view, capture and save high-definition inspection images and video on any iPad or iPhone. Its cameratipped probe produces high-definition VGA resolution (640 x 480 pixel) real-time video and still images. The camera has a depth of field of 1/2” to 12” and a 54-degree field of view.

www. generaltools.com

Dust extractor The Milwaukee M12 Hammervac Universal Dust Extractor uses replaceable HEPA filters and is compatible with the entire M12 system. It features a three-position switch with an “auto-on” setting and is available in three sizes of side handle collars.

milwaukeetool.com

Radar scanner Dewalt’s DCT418 hand-held radar scanner can be used to detect and identify wood, ferrous metal, nonferrous metal, live electric wires and PVC behind various wall surfaces. It has a sensing depth of up to three inches and features a prescan mapping mode, a 3-1/2” LCD colour screen, a tracking bar for counting detected objects and an ergonomic handle.

Tradesman’s bag The Plumber’s Tote from Lenox is equipped with nine exterior pockets, 14 interior pockets and 10 elastic loops. The soft storage tool bag is designed to endure abrasive use and extreme conditions and has reinforced rivets and water-resistant bottoms.

lenoxtools.com

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HVAC/R Products P Zoning control The ProLon HVAC zoning system, distributed by Pro Kontrol, is designed for retrofit and new rooftop unit installations. The controllers are designed for light- to mid-sized commercial buildings and allow users to group and prioritize zones. The system can be remotely accessed via the internet. The company’s free software, ProLon Focus, is designed to allow users to visualize and configure their systems. Prolonlive, a free web app, offers web access to any system by smartphone.

prolon.net

In-line fans Continental Fan Inc.’s MFT mixed flow in-line fans are designed for residential and light commercial ventilation applications. They feature UV-resistant plastic housings and a two-speed motor. The compact fans are available in duct diameters ranging from 4” to 12” and have airflow capacities up to 1,050 CFM. They are suitable for air temperatures up to 140°F.

continentalfan.com

Bathroom fans Broan-NuTone has expanded its Ultra line of fans and fan/lights with the addition of 16 models. The fans provide humidity-sensing or motion-sensing capabilities. Available in singleand multi-speed models, the units are designed to operate at less than 0.3 sones. The units have a telescoping mounting frame that can close together to fit through drywall openings and then expand once above the ceiling.

broanultra.com

Multi-speed HRVs Lifebreath Indoor Air Systems Max Series HRVs from Airia Brands feature five-speed, four-mode operation; a counter-flow design for maximum recovery; a patented aluminum core; door port balancing and digital control. The 155 MAX model can operate at 148 CFM at 25 PA and has a maximum heat recovery of 85%. The 200 MAX model can operate at 184 CFM at 25 PA and has a maximum heat recovery of 86%.

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Available in 2- to 5-ton capacities, the Tranquility high-efficiency two-stage compact (TZ) series heat pump from ClimateMaster features two-way communication for system monitoring and variable water flow technology. Standard features include a Copeland UltraTech two-stage unloading scroll compressor, ECM variable fan motor, microprocessor controls, a galvanized steel cabinet, a powder-coated and insulated galvanized steel drain pan, and acoustic type fibre insulation.

climatemaster.com

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Condensing oil furnace The Conforto CHE oil-fired condensing warm air furnace from Granby Industries is designed to offer an AFUE up to 95.8% and has an input range of 74,000 to 87,000 BTUH. It features a stainless steel heat exchanger, an ECM multi-speed blower motor and Riello F and BF series burners. The furnace can be direct-vented through a wall or up a chimney using PVC plastic venting pipe.

granbyindustries.com

Configurable rooftop unit Reznorâ&#x20AC;&#x2122;s RXH rooftop split system is a configurable air handler with an optional hydronic heating coil module. The unit has a heating input range of 223,000 to 629,000 BTUH. The system can be outfitted with standard or high efficiency motors, and VFD control. An optional downturn discharge air plenum and an intake weather hood with rain baffles are available.

rezspec.com

Scroll variable speed compressor Designed for high efficiency heat pump and air conditioning systems, Emersonâ&#x20AC;&#x2122;s Copeland Scroll variable speed compressor is rated at 13 HSPF (Heating Seasonal Performance Factor), can reach 20+ SEER efficiency, and offers turndown to 1,500 rpm. They have a speed range from 30 to 117 hertz and capacities up to 21.1 kW.

emersonclimate.com

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Tel: (888) 209-0999 www.williamshvac.com

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C A L E ND A R

O F

E V E NT S 2 0 1 3 DON’T FORGET TO COME AND VISIT US AT MCEE IN MONTREAL

CIPH Ontario Business Meeting May 16, 2013 Mississauga, Ont. www.ciph.com

HRAI Annual Conference August 21-24, 2013 Vancouver, B.C. www.hrai.ca

SOLAR ONTARIO 2013 May 29-30 Niagara Falls, Ont. www.cansia.ca CaGBC National Conf. & Expo 2013 June 4-6, 2013 Vancouver, B.C. www.cagbc.org CIPH ABC June 16-18, 2013 Halifax, N.S. www.ciph.com

Booth #134

CSA Annual Business Conference and Committee Week June 18-19, 2013 Calgary, Alta. www.csa.ca 2013 NEBB Annual Conference May 2-4, 2013 Montreal, Que. www.nebb.org

COHA Ontario Education Day September 18-19, 2013 Collingwood, Ont. www.coha-ontario.ca MCAC National Conference September 25-28, 2013 Winnipeg, Man. www.mcac.ca

GOT AN EVENT? SPREAD THE WORD! If your organization has a conference, trade show or other event coming up, send details to adam.freill@mechanicalbusiness.com See it all online at www.mechanicalbusiness.com

Cleaner Heat 2013 June 18-19, 2013 Moncton, N.B. www.coha.ca

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RLDVIEW Jeff Patchell

Aim to please T

he man cave craze is spreading the world over. Men want to spend more time pursuing their passions, sharing toys, time and a little consumption with like-minded buddies.

So in our most recent edition we ended up writing a really interesting article pointing out the choice of options available in the way of urinals that can be installed, while encouraging consumers to get in touch with their local plumber for advice.

In many cases, we’re seeing man caves springing up in what used to be dusty old basements that previously housed HVAC and hot water systems, as well as storage boxes, the kids’ old bikes and more junk.

Because urinals are chiefly a commercial installation product, the homeowner isn’t going to come across them at their local retailer and few ever visit their plumbing wholesalers. That’s a good thing, and a great opportunity. The plumber is looked to for expertise, advice, sourcing and installation – all with good margin there for you.

However, astute men are taking back these spaces and making the most of these areas in a variety of ways. You will be surprised at the level of investment by way of sports tables, AV systems, and kitchens and bars. And this is all quite separate to metal on rubber that might be sitting out in the garage.

So the next time you are visiting someone’s basement, why not ask the question about adding an extra bathroom facility – it might just inspire the client and turn that boring old maintenance job into a more profitable return visit. If you are interested in reading an online version of ManSpace – Inside the world’s best garages, sheds and mancaves! - simply go to the online magazine newsstand www.zinio.com and search for the title. I’m confident you’ll love reading it.

Now I must confess to having more than a passing interest in man caves and other spaces where guys hangout. You regular readers will know that we publish a plumbing magazine and the website www.worldplumbinginfo.com from down here in Australia, but we also have another publication as well, a men’s lifestyle publication called ManSpaceInside the world’s best garages, sheds and mancaves! One of the things we do in the magazine is inform readers how to spruce up their spaces by way of case studies or technology updates. Thus it wasn’t surprising that, given our plumbing background, we’d eventually get around to the bathroom. Anyone who has spent three-plus hours watching the big game surrounded by a veritable buffet and a fridge full of tall boys will tell you that toilet facilities are an absolute necessity in a man cave, and having one in the basement helps avoid the drudge of walking those stairs all the time. 124

in Australia

OPTIONS ABOUND As with many plumbing fixtures, when it comes to picking the right urinal, the choices can seem endless. There are a whole lot of material and design options to offer clients, from ceramics, plastic, fibreglass and stainless steel construction, to flush or waterless options, and open or flap top designs.

A HOME AWAY FROM HOME, DOWN IN THE BASEMENT In Indiana recently, I was shown a newly renovated basement space that provides the perfect example of how men are modifying their caves. This space boasts a poker room, home theatre, wine room, fully fledged kitchen and bar, and private bathroom facilities. The only reasons its bachelor-owner needed to go upstairs were to sleep, pass through on the way to work or order more supplies. Does life get much better than that?

Jeff Patchell is managing director of Connection Magazines Pty Ltd. He operates www.worldplumbinginfo.com, an online plumbing industry knowledge bank.

SAVE

THE

DAY WARNING: Using Aquatherm pipe does

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403.809.8707 www.aquatherm.com

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Compiled by Mechanical Business

PRICES ON THE RISE

WATER USE IN THE HOME

4.9% Percentage increase in price of HVAC and plumbing components from 2008 to 2011, according to the recently released Wholesale Services Price Index from Statistics Canada.

How do Canadians use water in their houses?

35% Showers and baths

30% Toilet flushing

RADON AWARENESS A CONCERN

20% Laundry

10%

40% Percentage of Canadian households

Kitchen and drinking

surveyed that had heard of radon.

5% Cleaning

17% Of the households who had heard of radon, 17% did not know if it was a health hazard.

WARMING UP

1.4Â°C Rise in average annual temperature for Canada over the past 60 years.

CHANGE THOSE FILTERS 3 months The most common time frame for commercial air filter replacement (38%), followed by monthly (30%) and every six months (7%).

GAINING EFFICIENCY, AND CONSUMPTION

20% Reduction in energy intensity, or the total amount of energy consumed per unit of heated area, in Canada over the past 20 years. Despite this gain in efficiency, residential energy consumption still rose 10%.

RULES ADD UP $31 BILLION

Approximate annual cost to Canadian businesses to comply with regulations from all levels of government.

Sources: Air Canada Centre, RBC, Canadian Tire, CMHC, Statistics Canada, Industry Canada PM# 41536047 Postmaster: Please send all address changes or undeliverable copies to: Mechanical Business, 19 â&#x20AC;&#x201C; 1525 Cornwall Road, Oakville, ON L6J 0B2

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