Industry Journal August 2024

AUGUST 2024

The Industry Journal for the New Zealand Refrigeration, Heating, Ventilation & Air Conditioning Industries

INSIDE THIS ISSUE

A RECORD YEAR AT THE WALLIE ASKEW REGIONAL CHALLENGES HVAC&R HUB RUNDOWN A SYSTEM UPGRADE FOR NOVOTEL NEW PLYMOUTH AI IN HVAC&R - WHAT ARE THE RISKS? irhace.org.nz 1

irhace.org.nz

AUGUST 2024

PUBLISHER IRHACE/CCCANZ/RLNZ IRHACE: www.irhace.org.nz CCCANZ: www.cccanz.org.nz RLNZ: www.rlnz.org.nz

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EDITOR Cassie Birrer editor@irhace.org.nz MEMBERSHIP admin@irhace.org.nz admin@cccanz.org.nz

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REFRIGERANT LICENSING & COURSES admin@rlnz.org.nz ADVERTISING admin@irhace.org.nz DESIGN Bellacreative Ltd HVAC&R CENTRE PO Box 217184 Botany Junction 2164 Auckland, New Zealand e: admin@irhace.org.nz e: admin@cccanz.org.nz e: admin@rlnz.org.nz No part of this journal may be printed in other publications without prior written permission of the Managing Editor.

Disclaimer: Statements expressed in this publication do not necessarily reflect the policies or views of the associations, and members of IRHACE or CCCANZ. The IRHACE Journal publishes both local and international articles. Standards and or practices may differ from current New Zealand standards and or practices used. No responsibility is accepted by the associations and editor for the accuracy of information or for errors or omissions. The IRHACE Journal is distributed to all the IRHACE and CCCANZ financial members.

ISSN 01148257

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FEATURES

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A record year at the Wallie Askew regional challenges This year saw the highest-ever number of competitors.

HVAC&R Hub rundown The second year of our flagship event was a huge success.

A system upgrade for Novotel New Plymouth The new HVAC system brings increased energy efficiency and improved troubleshooting.

AI in HVAC&R - What are the risks?

A look at the risks for individuals, organisations and the environment.

The importance of networking Having a strong support network shouldn’t be overlooked in business.

ASSOCIATIONS

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“Networking provides a platform to share and receive new ideas, perspectives and solutions.”

The latest issue is packed with valuable content and a valuable read for anyone in the HVAC&R industry.

Wallie Askew Memorial Workskills Competition: Six finalists have qualified for the finals, set to take place in October at Steelfort, Palmerston North. The competition has been intense, and the upcoming event will determine the overall winner.

BuildNZ HVAC&R Hub post-show report: The issue features a comprehensive report on the recent BuildNZ event, highlighting our flagship event HVAC&R Hub and industry trends.

Disaster preparedness: CCCANZ offers crucial recommendations on dealing with the impact of flooding on HVAC&R systems in residential homes – a timely and important topic.

Join us for our flagship HVAC&R Hub in Auckland in July 2025 and our newest trade show, HVAC&R South, in Christchurch in May 2025

AI in HVAC&R: The second part of the series delves deeper into the role of artificial intelligence in the HVAC&R industry, exploring its potential and challenges.

Innovative data storage: The issue also covers the world’s first data storage infrastructure solution built by Iwi Māori, showcasing cutting-edge developments in technology.

McAlpine Hussmann and Panasonic collaboration: We share an overview of their ongoing project, refurbishing Novotel New Plymouth’s HVAC systems.

Auckland Business Chamber’s encouragement: A motivational piece from the Auckland Business Chamber, reminding businesses to stay focused on their goals, even in challenging times.

Support our apprentices! irhace.org.nz

AUGUST 2024

Fire Dampers you can rely on.

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AROUND THE INDUSTRY 1

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1. All Seasons’ work on display It’s not every day the team from All Seasons get the opportunity to put their exposed ductwork out on display like in this office fit-out for Focus on Property Tauranga.

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3.

Andy Henderson nominated as Wellington Volunteer of the Month

As the President of New Zealand Boccia, Andy Henderson, a Branch Manager at Pattons in Wellington, has played a crucial role in promoting and developing the sport nationwide. His commitment has been instrumental in seeing his son become one of New Zealand Boccia’s top athletes.

NME returns as a major partner for the Wellington Learn more in this video interview with Andy: https://www.facebook.com/ Lions in 2024 watch/?v=2266149267064668

NME Managing Director, Tony O’Connell says, “ It’s an honour to once again be associated with the Wellington Lions Rugby. Our staff takes pride in and enjoys the opportunity to have our brand associated with the Lions.

We wish Alando Soakai and the team every success for the 2024 season.

irhace.org.nz

AUGUST 2024

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Does your boss pitch in?

It’s all hands to the pump at Cowley Refrigeration Limited, as General Manager Lee Lunt helps unload some goodies… well, spare parts! Love the smile – there’s no job too small for senior managers at Cowley.

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Five years of service to Eurotec

The Eurotec team recently celebrated Niro De Widanelage’s five years of dedicated service. Since joining Eurotec, Niro has brought his extensive engineering expertise to the Control Panel Division, elevating it to new heights as Control Panel Solutions Engineer. He consistently produces top-quality products, earning high praise from customers. Niro’s willingness to share his knowledge and his commitment to excellence has made him an invaluable member of the team.

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Chillex Group

Great to hear about Chillex Group’s dedication to prevent HVAC maintenance! Regular maintenance is crucial for extending the lifespan of HVAC systems and ensuring they run efficiently. When replacements are needed, having a well-maintained system allows for smoother transitions and less disruption for clients.

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Happy Ammonia Day from Patton

Without the use of ammonia as both a fertiliser and a refrigerant, we would not be able to feed the world’s population. Ammonia refrigeration has been around since 1912. The process used to produce commercial-grade anhydrous ammonia for farming and refrigeration use, the Haber-Bosch method, won two Nobel Peace prizes and is considered one of the top 10 inventions to benefit mankind.

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WSP plants native trees

Members of the WSP Hamilton office and their families partnered with Hamilton City Council to plant 1,600 native trees as part of the Forest of Life at Minogue Park.

https://lnkd.in/geAMn6cQ

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Clever, High Quality Air Handling Unit

Introducing Clever MT series, full-aluminium highly corrosion-resistant lightweight units, crafted with superior design elements to deliver exceptional performance. The MT Series offers high-quality features while giving you the certainty to aid quick and easy HVAC system design and the flexibility to rely on shorter lead times and optimum savings.

Full Aluminium Design For added corrosion protection and lighter weights, anodised aluminium framework, panels and base channel Ebox Wiring Integration Wiring can be easily done via the Ebox with integrated terminal blocks Tropical Profiles Tropical profile and thermal break panels as a standard for exceptional thermal performance High Efficiency EC Plug Fans EC plug fans that precisely adjust airflow to change in static pressure

Nominal Airflow 750 l/s - 15,000 l/s

irhace.org.nz

AUGUST 2024

For product information, visit www.temperzone.com

From Wallie Askew comp to the world stage

While Kiwis are basking in the success of the Paris Olympics, one young refrigeration engineer is boarding a plane to France to pit his skills and determination at another world challenge Jack Butler will compete at the 47th WorldSkills International competition in mid-September. The competition is the gold standard of skills excellence.

Over 1,500 young people from over 65 countries and regions will compete in 62 trade and vocational skill competitions.

The newly qualified refrigeration engineer got his first taste for competition at the 2023 Wallie Askew Memorial Workskills Competition, held in Palmerston North last October.

In May this year, Jack took out Silver and Best in Nation at the WorldSkills Australia Global Skills competition in Melbourne. He competed against young refrigeration engineers from Australia, Austria, Brazil and Hong Kong.

His win has given him a brilliant boost for his run-up to the WorldSkills International competition.

Since selection, Jack has been training and attending team camps to prepare for living and competing in Lyon.

As he sets off for France, he becomes the first New Zealand representative to compete at this world class level in the refrigeration, heating and air conditioning skill.

L-R Elliot Farnan & Jack Butler

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Another record year for the Wallie Askew regional challenges irhace.org.nz

AUGUST 2024

2024 Wallie Askew Regional Challenges

With 32 apprentices registered, this year saw the highest-ever number of competitors in the Wallie Askew Memorial Workskills Competition The competition has been running since 1999 as a recognition of former IRHACE president Wallie Askew – a strong supporter of the HVAC&R industry, the Institute, and apprentice training.

Each year, three regional challenges are held across the country – Northern, Central and Southern – before the top two competitors in each challenge test their skills at the final competition. The Northern regional challenge was held on July 6th at ACSL Group in Auckland; the Central challenge was held on July 13th at Steelfort in Palmerston North; and the Southern challenge was hosted by SIT in Christchurch on July 20th.

Showcasing their skills in both practical and theory, this year’s finalists are: •

Campbell Brown, McAlpine Hussmann, Auckland (Northern)

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Dylan Hendry, McAlpine Hussmann, Dunedin (Southern)

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Liam McVicar, McAlpine Hussmann, Wellington (Central)

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Matt Jackson, Active Refrigeration, Christchurch (Southern)

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Oliver Tischendorf, Dobsons Refrigeration & Electrical, Te Puke (Northern)

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Tristran Munro, Excel Wellington (Central)

“There’s definitely a lot of a lot of young talent out there coming through that could potentially find themselves in a similar position to Jack Butler competing on a global scale – he certainly sets a good example and a good standard as well for people coming through.”

Judges at the events included: Northern • David Everett • Matt Birch • Garrett Glynn • Trent McDonald • Alex Arnold Central • Cameron Wilson-Meek • David Everett • Daniel Jordan • Neill Adkins Southern • Rodger Wyatt • Chris Arvidson • Lee Todd • Allan Kelly • John Kelly Operations Co-ordinator for WorldSkills New Zealand, Sally Gray, was also in attendance, alongside previous Wallie Askew Workskills winners Cameron Wilson-Meek (2022 competition winner) and Alex Arnold (2023 competition winner) who are now also judges for the event.

Special thanks to Realcold and CCCANZ for their continued support, to the venue sponsors ACSL Group,

A judge at the Northern challenge held in Auckland, Trent McDonald says he noticed the increase in numbers on the day, with many competitors also attending from outside the Auckland area.

“The event was very well organised and ran smoothly.

Everyone had quite a bit of fun,” he says. “There were also quite a few people who came to support the participants, as well as people who are interested in the trade so they had the opportunity to see what kind of work people within the trade do.”

Some higher scores were achieved compared to last year and a competitor who had been a first-year apprentice in 2023 returned to compete this year as a second-year apprentice.

Steelfort and SIT, and to the equipment sponsors Refspecs and Actrol.

A special mention must also be given to John Jenkins (JJ) at Steelfort – without his support the event wouldn’t happen.

The Wallie Askew Memorial Workskills Competition 2024 final will be held on October 18-19 at Steelfort, Palmerston North.

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A recap of the Southern challenge Words by Chris Arvidson

It was a dark and stormy morning heading towards SIT on Saturday... Luckily we were having the event indoors with SIT once again providing a fantastic venue for the event, with the Kelly brothers (Allan and John) both instrumental in setting the site up and ensuring we had clean workspaces and surrounding classrooms for the theory, electrical and emissions parts of the programme.

Nitrogen, welding gases, workbenches and more were all supplied.

The six apprentices were enthused and ready to go when the whistle went, and all put their best foot forward for the day, and after a frantic run around trying to sort Wifi connections and reclaim cylinders after said whistle, everything settled down and ran smoothly. With a short timeframe for the whole competition, the apprentices were under pressure, especially on the fabrication exercise, which proved the most difficult. Having said that, the physical side of the competition is something that seems to generally be handled well by all competitors, with the biggest impacts on total scores being seen in the theory section and fabrication.

With competitors registered from Blenheim to Dunedin, we had the largest catchment area in years, and that was reflected in the number of supporters and sponsors who attended on the day which was fantastic to see! A big thank you to those who made the extra effort to drive all those miles to get here!

SUPPORTERS AT THE EVENT

It was certainly worth it to Dylan from McAlpine Hussmann in Dunedin who took out top honours on the day, followed by Matt Jackson from Active Refrigeration in second place. Both competitors will be taking part in the finals to be held at Steelforts premises in Palmerston North in September.

A huge acknowledgement once again for the sponsors Realcold, CCCANZ and IRHACE, without whose support this event could not run, and the volunteers who helped on the day (Rodger Wyatt, Martin Lightfoot, Lee Todd, Allan and John Kelly). We had additional and welcome help from Dave Higham and Ben Dalton who turned up on the day and offered their help as well.

Looking forward to seeing the finals, and aiming for next year’s competition.

From left: Cameron Wilson-Meek, Daniel Jordan, Sally Gray, David Everett at Central

McAlpine Tim Moore, Actrol Craig Parker

Supporters at ACSL Group at Northern regional challenge

Alex Arnold, Judge at Northern Region Last year’s winner

Sue Pinkney, Trent McDonald, Alex, David Everett, Matt Birch, Garrett Glynn

irhace.org.nz

AUGUST 2024

1st and 2nd Placings

NORTHERN 1st place - Oliver Tischendorf

NORTHERN 2nd place - Campbell Brown

CENTRAL 1st placing – Liam McVicar

CENTRAL 2nd placing - Tristran Munro

SOUTHERN 1st placing – Dylan Hendry - Hussmann

SOUTHERN 2nd placing - Matt Jackson

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HVAC&R HUB

Roskill Air Team

Rod Dickson, Worksafe irhace.org.nz Daikin Team

AUGUST 2024

5,805+ VISITORS 1,500 NEW VISITORS Another successful year at HVAC&R Hub The second year of our flagship HVAC&R Hub was a success, bringing together industry leaders, innovators and professionals in HVAC&R to share the latest advancements, technologies and best practices in the field

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Haier Team

Over two busy days at the Auckland Showgrounds, BuildNZ was bustling with over 5,800 visitors, 281 exhibitors and seminars and presentations on offer. It’s little surprise brands are hailing the event as a great success.

Attendees enjoyed an extensive programme of seminars, workshops and demos with over 60 industry experts sharing the latest insights.

CPD-accredited keynote speakers and panel discussions were also a major draw.

In the words of XPO Exhibitions, our highly successful HVAC&R Hub made a return that was bigger and better than before.

The biggest challenge for visitors was making sure they had enough time to see everything!

Some key numbers of the event: • The event attracted 5,805 visiting industry professionals. This included over 1,500 first-time visitors.

• Keeping abreast of industry trends was the drawcard for 84 per cent of attendees.

• Finding new suppliers was the drawcard for 79 per cent of attendees.

• Networking opportunities were the drawcard for 79 per cent of attendees.

• There was a total purchasing power of $343,717,988 • The average purchasing power was $88,133 • 80 per cent of visitors were responsible or could influence purchasing decisions • 79 per cent of visitors were satisfied overall with the event • 77 per cent of visitors are likely to be in contact with exhibitors post-event • The event attracted local visitors as well as those from Australia, the US, the UK, France, Germany, China, Thailand, Vietnam, Hong Kong, Japan, Indonesia, New Caledonia, Kiribati and Fiji.

Actrol Team

irhace.org.nz

AUGUST 2024

“The HVAC&R Hub is the one-stop shop for industry knowledge, networking and product demonstrations – a concentrated format that allows you to gather a wealth of information and establish valuable connections efficiently,” says Gina McMaster.

For exhibitors, there was high satisfaction with the level of networking at the event, along with the ability to increase company recognition and promote new products and services.

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75 per cent were impressed with the number of visitors to the stand.

75 per cent were also happy with the quality of the visitors.

BuildNZ and the HVAC&R Hub return on July 15-16 next year.

Book now by contacting eo@irhace.org.nz.

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2024 HVAC&R HUB EXHIBITORS

Airlab Team

Panasonic Team

irhace.org.nz

AUGUST 2024

Our team, including our local market partner Roskill Air Solutions Ltd, had many great conversations with visitors, welcoming old friends as well as meeting many new ones.”

-2024 Exhibitor

SIMXTeam

Elta Group, Smooth Air, Fantech & NCS Teams

BDT Team

Patton Team

Parker Hannifin Team

National Hood Duct Cleaning Team

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A new HVAC system for Novotel New Plymouth The new system has increased energy efficiency, remote diagnostics, and improved troubleshooting capabilities A major upgrade is underway at Novotel Hotel in New Plymouth, with McAlpine Hussmann installing new Panasonic air conditioning, consisting of 10 x 3-Pipe heat recovery VRF systems, 93 x MF3 mid static (150pa) ducted units, along with a Smart Cloud to provide the ultimate in remote monitoring and control.

“The main advantage of the heat recovery system is it gives simultaneous heating and cooling, which is needed in hotels, as certain guests like their rooms warmer, while other guests like them cooler. So these units can deliver different temperatures to different indoor units at the same time. Being VRF, it is an extremely energy-efficient system,” says Rob Fomison, Panasonic New Zealand’s Commercial Project Sales Manager.

irhace.org.nz

AUGUST 2024

The MF3 mid static ducted units offer improved airflow to enable better temperature within the rooms. Boasting a slimline design with a height of only 250mm, they sit nicely within the ceiling space of the hotel rooms.

“The indoor units also have Nanoe X built in, which is Panasonic patented. This is a revolutionary antivirus, mould, bacteria and odour inhibitor, therefore it’s keeping the rooms nice, fresh, clean and healthy, which is an added bonus,” says Rob. For easy maintenance and troubleshooting of these systems, the Panasonic Smart Cloud has been installed.

This is a central control system, which utilises cloud technology. The cloud adapter is installed in the hotel and links to all of the hotel’s HVAC units.

“The hotel staff are able to log into it just using a laptop or PC. This means they can check what’s going on in every single room. They can switch units on and off, as well as change temperatures and modes. The biggest advantage, however, is the service provider can log in on a higher access level, and Panasonic can log in on an overall level, which enables us to have full online diagnostics of the system,” says Rob. “If there’s ever a problem, the hotel can contact their contractor and say, I’ve got an error code on the HVAC system, the contractor can log into the Smart Cloud first and do an initial diagnosis. The error code gives them an insight into what’s gone wrong before they’ve even had to send someone out. And if it’s more complicated, they can let us know and our technical team can log in and run full diagnostics on the system and assist when the contractor is on site.”

The new HVAC set-up also means less downtime for the hotel should there be any complications.

“They originally had four outdoor units, so this meant they’d essentially lose a quarter of their accommodation if there were an issue,” says Blaid Gifkins, Refrigeration Engineer at McAlpine Hussman New Plymouth. “With this new setup, we’ve gone to 10 outdoor units – we’ve split it up a lot more. So in the future, if they do have issues, it’s going to take out less of their accommodation because the Panasonic VRF units that we are using can run at a much lower compressor frequency.”

Panasonic has designed the system so that a quarter of indoor units can be in error code, and the rest of the system will continue to run.

“We have used smaller systems in all areas of the hotel.

So if they were to lose one system, it would only take out approximately 20 rooms instead of them losing 25 per cent of their rooms,” adds Rob. Since the HVAC revamp started, the hotel has been making the rooms available, shutting down sections at a time to remove the old equipment and replace it. The final commissioning is scheduled for October 11.

... and earn HVAC&R CPD Points!

Read...

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MEMBER PORTAL 19

FACT SHEET

HVAC&R SYSTEMS - THE IMPACT OF FLOODING

Dealing with disaster

This fact sheet explores the implications of flooding on HVAC&R systems in residential homes. After a flood or storm surge from a cyclone, homeowners need to take important safety precautions when it comes to their home’s heating and cooling systems. A house or basement exposed to standing water can damage your home’s water heater, furnace, boiler, air conditioning, ventilation and heat pump system – putting your family at risk.

BE SAFE, BE PROTECTED

Before touching any electrical equipment, ensure your power is shut off and you are protected from any risk of electrocution.

CONSIDER YOUR ENERGY BILLS

When looking at replacements, consider new, energy-efficient models that can lower your future energy bills.

REPLACE, DON’T REPAIR The CCCANZ and IRHACE recommend that any flood-damaged heating and cooling equipment and systems should be replaced and not repaired.

All inspection and replacement work on flooded equipment should be performed by qualified heating and cooling professionals, not by homeowners. Unfortunately, equipment damaged by natural disasters is not covered by manufacturer warranties, yet is likely to be covered by insurance; your provider can help you through the claim process. Manufacturers should extend customer service and technical assistance as needed to ensure that all customers, service contractors and end users receive any timely support needed.

When looking at replacements, consider new, energy-efficient models that can lower your future energy bills.

irhace.org.nz

AUGUST 2024

HEAT PUMPS AND AIR CONDITIONING SYSTEMS Split air conditioning and heat pump systems have power and control wiring between the indoor and outdoor parts of the system and the piping that moves the refrigerant from inside to outside the home and back.

Even if the system is in contact with flood water for a long period, this sealed system is likely to remain intact.

However, if flood water has repositioned either the indoor or outdoor units of a split system by only a small amount, there is the potential for a breached refrigerant system.

The heat pump (or air conditioning system) will then require major repair or full replacement.

If the refrigerant system remains intact after the flood, the entire system should be cleaned, dried and disinfected as mould contamination can be a serious concern.

You should have a qualified heating and cooling professional check all electrical and refrigeration connections for both indoor and outdoor units, including all control circuits. The decision to repair or replace should be made by a qualified professional on a case-by-case basis.

DOMESTIC REFRIGERATION AND FREEZERS As with heat pumps and air conditioning systems, domestic refrigeration and freezers have power and wiring that can be affected by flooding. The refrigerant is sealed within the system and likely to remain intact, however, any damage may indicate the appliance needs replacing. Have a qualified heating and cooling professional check all electrical and refrigeration connections for both indoor and outdoor units, including all control circuits.

The decision to repair or replace should be made by a qualified professional on a case-by-case basis. If the system is not replaced ensure thorough cleaning and sanitisation is completed before storing any food.

DUCTWORK If you have a central forced-air furnace in the house you are repairing, pay attention to your ductwork too. A professional will not try to salvage duct insulation that has been in contact with flood water, but will replace it because it is impossible to decontaminate. They will also clean, dry and disinfect the ductwork. Doing a thorough job will require disassembling the ductwork. These repairs also allow you to seal joints in the ductwork and improve insulation to reduce heat loss.

WATER HEATING SYSTEMS Whether your water heater is gas-fired, oil-fired or electric, if it was exposed to flood water, the unit should be replaced. A new water heater is a relatively small investment, and replacing it is fairly easy to do.

In a gas unit, valves and controls will likely corrode. In an electric unit, the thermostat and controls will likely corrode. In both types, the insulation surrounding the unit will be contaminated and will be nearly impossible to disinfect. Additionally, the insulation would take a long time to dry, leading to corrosion of the tank from the outside.

Even if water heater components have been cleaned and the unit seems to operate properly, parts may corrode in the future. Both gas and electric water heaters have pressure relief valves that can corrode and stick after being exposed to flood water. Be sure to replace this valve as well.

GAS FURNACES AND BOILERS If there is any question about whether flood water has reached a gas appliance, have the unit checked by a qualified heating professional. Natural gas furnaces, space heaters and boilers all have gas valves and controls that are especially vulnerable to water damage from floods and that damage may not be easy to detect.

Corrosion begins inside the valves and controls, and damage may not be readily visible, even if the outside of the device is clean and dry. At a minimum, this damage can result in reliability problems.

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ELECTRIC FURNACES

RADIANT CEILING HEAT

An electric furnace consists of electrically heated coils, a fan to provide air circulation across the coils, and controls which include safety relays. Just like the gas-fired warm-air furnace, the electric furnace is susceptible to corrosion and damage, resulting in reliability problems and safety hazards. If there is any question whether flood water has reached an electric furnace, have the unit checked by a qualified heating professional.

In this type of heating system, electrically heated cables are embedded in the plaster or drywall ceiling. The cables warm the ceiling, which in turn warms the room with radiant heat. If the ceiling becomes wet from a flood, the plasterboard will weaken and perhaps crack, and the ceiling will need replacement. Although the electrical cables themselves may appear to be undamaged due to their tough, waterproof coating, there may have been large mechanical stresses on the cable and a qualified electrician should be consulted to determine whether the cable is reusable.

PROPANE HEATING Use extreme caution when there is the potential for propane leaks and get propane equipment checked, repaired and/or replaced by a qualified heating professional as quickly as possible after a flood. In every case, all valves and controls that have been in contact with flood water must be replaced. Propane systems also require attention to their gas pressure regulator. This regulator contains a small vent hole in its body to sense outside pressure. For effective gas pressure regulation, this hole must always remain unobstructed. During a flood, debris can easily plug the hole, causing dangerous malfunction or corrosion. The regulator should be replaced, as water from floods can carry corrosive chemicals.

A qualified air conditioning or a heating/cooling professional can advise you whether your heating or cooling equipment can be salvaged. It depends upon the type of equipment, the depth of the floodwaters, and the duration of submersion. Many people try to salvage appliances such as dehumidifiers, refrigerators, and freezers that have been in flooded basements. This can be extremely dangerous. In some cases, ensuring appliances are safe can involve a destructive inspection which means repair may not be an option.

HOW DO I KNOW IF SOMEONE IS QUALIFIED? •

Make sure they have a current electrical worker’s license as required by law.

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If a provider is working with refrigerants in your system, ensure they hold an Approved Fillers License as required of nearly all users of refrigerants by legislation. Check this here.

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All heating and cooling systems have the potential for risk. Unlike most trades such as electricians, HVAC&R specialists are not required to be registered with a professional body. By working with companies that are members of the Climate Controls Companies Association (CCCANZ) and technicians who are members of the Institute of Refrigeration, Heating and Air Conditioning Engineers (IRHACE), you can be reassured you are working with people committed to professional development and training to ensure the highest levels of safety and delivery of services.

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You can check if an individual is a professional with IRHACE here and that a company is a member of the Climate Controls Companies Association here.

With thanks to Refrigeration Specialties and the American Air Conditioning, Heating and Refrigeration Institute.

irhace.org.nz

AUGUST 2024

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World-first data storage infrastructure solution built

by Iwi Māori, for Iwi Māori Media Release by Te Kāhui Raraunga, designers of Te Whata.

Te Kāhui Raraunga Charitable Trust (TKR) is on a mission to provide a data storage solution like no other in the pursuit of mana motuhake when it comes to data and the digital future. The concept of the network’s purpose is encapsulated in its name, Te Pā Tūwatawata.

And after six months of testing, the pilot phase has proven so successful, TKR expects Te Pā Tūwatawata to go live in early 2025. The kaupapa involves the development of a distributed storage network to enable iwi, hapū and whānau Māori to collect, store, protect, access and control their own data.

Unlike other data storage solutions here and around the world, the servers used to connect the network will be based at the heart of where the data comes from – on marae, inside Māori organisations, or at other relevant iwi locations.

irhace.org.nz

AUGUST 2024

Three locations have been in the testing phase since late 2023, with the final network set to open with eight locations around the motu.

TKR Chairman, Rāhui Papa says the project is not only a world-first, but significantly embraces core concepts like kotahitanga – through sharing and scaling; and rangatiratanga – by giving iwi and hapū the power to control and make decisions over their own data.

“Iwi Māori Data sovereignty is at the heart of everything we do at TKR. As the world becomes more and more digital, we must adapt and be prepared to create our own infrastructure and empower our people with the know-how and skills to use it,” says Mr Papa.

Kirikowhai Mikaere, Lead Technician for the Data ILG and Te Kāhui Raraunga says traditionally, data centres are

located in big warehouses, completely isolated from the source of the data and the people and whenua who have connection to it.

“With this kaupapa, we’re housing the data where it belongs, under the safe protection of the people that it means the most to. Additionally, with Te Pā Tūwatawata being located on-shore and owned by us, it meets the principles of Iwi Māori Data Sovereignty at the highest levels,” says Ms Mikaere.

The Perfect Commisioning System testo 570s, the digital

Te Pā Tūwatawata also includes investing in its own skill base to build capability amongst iwi to manage and maintain the sites, and the data held within them.

manifolds with 4-way

“We have some of the best global network designers and experts working on Te Pā Tūwatawata. It is critical that we build capability to form our own workforce and contribute to a more highly-skilled New Zealand-wide workforce overall.

memory, are opening

“We already have two rangatahi on board as the first Te Pā Tūwatawata junior network engineers, working alongside our local and global specialists to help lead this mahi into the future.”

Erena Mikaere, Principal Advisor (Digital) at TKR, has spearheaded and guided the project since its inception and is proud of the progress that has been made as the team head towards a 2025 launch.

testo 570s

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“We are disrupting the status quo when it comes to digital and data, so that they better serve Iwi Māori aspirations of rangatiratanga and mana motuhake.

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“Our data storage network Te Pā Tūwatawata has layers of safety, security, functionality and protection structurally informed by kawa and tikanga; that means hapū and iwi can make their own calls about the access and sharing of their own information in ways that honour their kawa and tikanga at place.

“There are some powerful motivations for this mahi.

Our economic, social, cultural and environmental future will be underpinned by a digital future – and data infrastructure sits at the foundation of this.

“Te Pā Tūwatawata provides Iwi Māori an opportunity to build a new digital and data world. It has been created by us, for us, with teao Māori values at its core, and its working! It’s hugely exciting.

“As we head deeper into this digital age, it excites me to know we’re not just moving with the times but we are leading as a people, while continuing to hold onto the wisdom of our ancestors from a past which teaches us to safeguard our own stories and taonga.

“I’m really looking forward to sharing Te Pā Tūwatawata with the rest of Aotearoa and seeing the benefits it will bring to not just the Māori economy, but for New Zealand’s economy, showing Aotearoa and the world, what Iwi Māori can achieve.”

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AI in HVAC&R Part 2: Risks We’ve looked at the ethics around using artificial intelligence (AI) in HVAC&R, but what about the risks involved?

Words by Arsen Ilhan The National Institute of Standards and Technology (NIST) identifies several types of harm that AI can cause.

Negative impact or harm can be experienced by individuals, groups, communities, organisations, society, the environment and the planet. These harms can range from privacy violations and biased decision-making to economic disruptions.

Understanding and mitigating these risks is crucial to ensure the responsible development and deployment of AI technologies. By proactively addressing these potential harms, organisations and policymakers can foster a more equitable and sustainable integration of AI into various aspects of society. This includes implementing robust ethical guidelines, enhancing transparency in AI systems, and promoting inclusive practices that consider the diverse needs and values of all stakeholders. Additionally, continuous monitoring and evaluation of AI impacts are necessary to adapt to emerging challenges and ensure long-term positive outcomes for humanity and the environment.

The impact on individuals AI-driven HVAC&R systems have the potential to impact individuals and groups by perpetuating biases that lead to unequal treatment. For example, if an AI system prioritises energy efficiency over occupant comfort based on biased data, certain individuals or groups, such as those in less-frequently occupied areas or with non-standard schedules may experience discomfort.

To address this, HVAC&R systems must be designed to consider the diverse needs of all occupants.

This can be achieved by using inclusive training data and incorporating fairness metrics to ensure equitable temperature control and air quality across different demographic groups. According to Luísa Nazareno and Daniel S. Schiff’s study, The impact of automation and artificial intelligence on worker well-being, automation can affect worker well-being through five hypothetical channels through which automation may impact worker well-being: influencing worker freedom, sense of meaning, cognitive load, external monitoring, and insecurity.

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AUGUST 2024

Organisational impact Within organisations, the integration of biased AI in HVAC&R systems can lead to a range of adverse outcomes that extend beyond energy and environmental conditions. AI algorithms may increase the risk of data breaches and cybersecurity threats. Biased algorithms might inadvertently compromise sensitive data if not properly secured, leading to breaches that can harm both the organisation and its stakeholders. Privacy concerns also arise when AI systems use personal data without consent or fail to anonymise information adequately, potentially violating data protection regulations and eroding consumer trust. Operationally, biased AI may introduce reliability issues and dependency on flawed decision-making processes, affecting the system’s performance and user satisfaction.

These operational risks can lead to increased maintenance costs and downtime, impacting overall business continuity. Furthermore, ensuring regulatory compliance becomes challenging when AI systems produce biased outcomes that violate fairness and non-discrimination laws, potentially exposing organisations to legal liabilities and reputational damage.

Financially, the costs associated with addressing these issues, including legal fees, fines, and reputation management, can be substantial, undermining the financial stability of the organization.

Risks to the environment The environmental impact of AI-driven HVAC&R systems is another critical concern. While AI can optimise energy use and reduce greenhouse gas emissions, biased algorithms might overlook the specific environmental needs of certain areas. For example, an AI system trained primarily on urban data might not adequately address the unique challenges of rural or ecologically sensitive areas.

Ensuring that AI systems are environmentally responsible involves training algorithms on diverse environmental data and continuously monitoring their impact on different ecosystems. Additionally, incorporating sustainability goals into the design of AI-driven HVAC&R systems can help balance energy efficiency with environmental stewardship.

In conclusion, the integration of AI into building services represents a transformative leap towards efficiency, sustainability, and enhanced user experience. AI-driven technologies promise to optimise energy consumption, improve maintenance practices and tailor building environments to meet individual needs more effectively than ever before. However, this advancement must be approached with careful consideration of ethical implications to ensure these benefits are equitably distributed and sustainable over the long term. Addressing biases, ensuring transparency, safeguarding data privacy, and prioritising fairness are paramount to fostering trust and inclusivity in AI-driven technologies.

By embracing ethical AI practices and continuously monitoring their impacts, stakeholders can navigate potential risks effectively and harness the full potential of AI to create environments that are not only technologically advanced but also equitable and environmentally responsible.

Transparency throughout the AI lifecycle – from data collection to algorithm deployment – is essential for building trust. As we navigate the future of AI in building services, a proactive commitment to ethical standards will be instrumental in shaping a future where AI enhances our lives while respecting fundamental human values and societal wellbeing. By embracing ethical AI practices and continuously monitoring their impacts, stakeholders can foster innovation that is not only technologically advanced but also ethical, equitable, and environmentally responsible. This approach not only safeguards against potential risks but also maximises the positive impact of AI on our built environment.

Arsen is a mechanical engineer and currently holds the position of marketing coordinator at the Women in Engineering committee. She actively advocates for increased representation of women in the industry, inspiring and encouraging them to pursue rewarding careers in engineering through Women in Engineering and Women of AIRAH. She has also been a mentor at the Royal Academy of Engineering (UK). As an AI enthusiast, she explores machine learning and its practical applications. She was recognised as a finalist for Young Engineer of the Year by CIBSE in 2023.

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A strong network gets you places where degrees cannot You never know what connection might lead to your next big career move, next forever friendship or next coincident encounter. Having a support network of positive, passionate people who lift you up and push you to do good stuff is so important, in business and in pleasure Words by Gina McMaster

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AUGUST 2024

Avenue for newer opportunities Networking can open doors to new career opportunities, partnerships and collaborations. Many job openings and business opportunities are filled through referrals and connections rather than traditional job postings.

Reassessing your qualifications Interacting with professionals from various backgrounds can help you reassess and update your skills and qualifications. It can also provide clarity on the latest industry trends and required competencies, allowing you to stay relevant in your field.

Improves your creative intellect Exposing yourself to different viewpoints and experiences can enhance your creativity. Networking stimulates your mind and encourages you to think outside the box, leading to innovative ideas and solutions.

An extra resource library Your network can serve as a valuable resource library.

The collective knowledge, expertise and experiences of your connections can provide support and guidance when you face challenges or need advice.

Support from high-profile individuals

Networking is not only about trading information but also serves as an avenue to create long-term relationships with mutual benefits. It should be at the core of your career. Why? Networking is a powerful tool that extends far beyond the exchange of business cards or LinkedIn connections.

Building relationships with high-profile individuals in your industry can offer mentorship and sponsorship opportunities. These connections can provide valuable advice, open doors to new opportunities and support your career advancement.

Growth in status and self-confidence

It plays a crucial role in both personal and professional growth, offering numerous benefits that can significantly impact your career and personal life.

As you build and expand your network, you gain recognition and credibility within your industry. This growth in status can boost your self-confidence and encourage you to take on new challenges and responsibilities.

Here are some reasons why networking should be at the core of your career strategy:

Develop long-lasting relationships

An avenue to exchange ideas Networking provides a platform to share and receive new ideas, perspectives and solutions. Engaging with a diverse group of professionals can lead to innovative approaches and insights that you might not have considered on your own.

Makes you noticeable Being active in your network helps you stand out.

Regularly engaging with others and sharing valuable information can increase your visibility and establish you as a thought leader in your field.

Networking is about creating meaningful and long-lasting relationships. These relationships can provide continuous support, friendship, and collaboration throughout your career and personal life.

By making networking a core aspect of your career, you can harness the power of connections to achieve personal and professional growth, discover new opportunities, and develop a robust support system that drives your success.

Keep up to date with the latest from IRHACE for networking opportunities in HVAC&R.

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Heated debate: why some feel colder than others in air-conditioned spaces It’s something most of us have experienced in the office and even at home. So why do we sometimes feel colder than those sitting right next to us when we’re in air-conditioned rooms?

We’re heading into spring, and over the next few months the heating will gradually cool to air conditioning.

However, there are a number of reasons why some are more sensitive to cooler temperatures than others.

Historical bias Women are often the coldest in air conditioning, according to a 2016 study in the journal Nature Climate Change. The study notes that temperatures in many office buildings are based on a formula developed in the 1960s that employs the resting metabolic rate of a 154-pound, 40-year-old man. Of course, today’s workforce is much different, but the usual air conditioning temperature isn’t.

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AUGUST 2024

Body composition As suggested in the 2016 Nature Climate Change study, body composition – especially muscle mass – plays a big role in how people are affected by different temperatures. We have sensors in our skin that detect and respond to temperature. Those with a higher percentage of body fat may experience temperature differently due to their body’s composition acting as insulation.

Blood circulation When it’s cold, skin will vasoconstric to maintain the core body temperature around the brain and heart. This means the blood vessels will reduce blood supply to the skin’s surface and the body’s extremities like fingers, toes, and the nose. A person’s blood circulation can impact this.

Essential guidance for smart, sustainable buildings Data and analytics is playing an increasing role in our buildings. In response, AIRAH has published its Big Data Guideline – a free resource to support building owners, facility managers, consultants and service providers embarking on their big data journey.

“The STG felt that industry required guidance from a reliable and trusted body to educate and align the various methods of applications, taking into account the perspectives and subjectivity of technology from different vendors,” says Roshan.

“Big data is revolutionising the building and construction sector, especially in the area of building energy management,” says Roshan Gill, M.AIRAH, a key contributor to the guide and Chair of AIRAH’s Big Data Special Technical Group (STG).

Associate Director of the Big Data STC, Chris Stamatis, M.AIRAH, adds that the Guideline is aimed at people just starting or are partway through their digital transformation.

“We have seen an explosion in the use of interconnected devices and building management systems, offering us incredible opportunities to improve our buildings. But doing this relies on effective use of big data and analytics.”

The Guideline provides an overview of what big data is in the built environment, how to protect data, and how to begin leveraging it to make buildings smarter and more sustainable. It is the culmination of more than 19 month’s work by the STG who saw the need to upskill industry, particularly in relation to the proactive control and optimisation of HVAC&R systems.

“With the fast-paced changes in the smart building space, the STG wanted to develop a guide to help owner/operators and service providers,” says Stamatis.

“The Guideline is intended to educate the industry on the core basics needed for success when embarking on the big data journey. It explains what’s required when procuring or deploying a big data project. It also includes a checklist as a quick sanity check to make sure all core items are considered.”

The Big Data Guideline can be downloaded from the AIRAH resource library.

DOWNLOAD BIG DATA GUIDELINE 31

D P C n Ear s! t n i o P

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The aim is to educate the HVAC&R industry focused on the design and technical context in which the product may be applied, not on the product itself. This may include seminars, research papers with quiz questions, practical workshops, short courses, events, online learning or site visits.

COURSES & WEBINARS

RECOMMENDED

Provider approved CPD learning courses that include technical information of the highest standard and relevant to New Zealand.

The CPD system also includes an area for recommended activities that do not earn CPD points due to length of time or not of a technical nature.

EVENTS Selected events that meet the level of technical information and relevant to New Zealand.

TECHNICAL

DISCUSSION BOARD IRHACE members enjoy being invited to technical discussions on CPD activities, projects and other technical issues.

Technical activities that are educational and well balanced.

To earn CPD points you must be an IRHACE member irhace.org.nz Become AUGUST an IRHACE2024 member and enhance your professional development

August 2024 Member Milestones 10 Years Melvyn Furniss Matthew Pervan 20 Years Mark Galbraith Brian Skiffington 30 Years Hamish Panton 40 Years Christiaan Kitzen Anthony Bushell Alan Skinner

JOIN IRHACE

Apply for membership today SIGN UP

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USE A CCCANZ MEMBER

As a CCCANZ member you benefit from the collective strength of the organisation which enhances your reputation as a responsible and reliable business in the HVAC&R industry.

Branding – logo and promotion

Trade offers and deals

Discounts with N3

Promotion and marketing

Standards library

Networking opportunities

Training scholarship

Professional development

Special rates for advertising

Latest industry news

Contracts and agreements

Sign up today and find out more at cccanz.org.nz irhace.org.nz

AUGUST 2024

Member company listing covering New Zealand from Northland to Southland and in between.

MEET THE BOARD Get to know the CCCANZ team

What is your current business role?

I am the Director of Clarkson Air Conditioning Ltd and also a Producer Statement Author. Clarkson Air Conditioning continues to work with Clarkson Electrical on a number of projects, including gaming trust work, service station contracts and a number of large New Zealand corporate business developments.

L-R: Mark Hoskin, Brendan Clarkson, Gary Reily, Garry Ko, Malcolm Miller

Name: Brendan Clarkson - Clarkson Air Conditioning Role: Board Director What is your background?

I started working in the Royal New Zealand Air Force (RNZAF) as an Engineer serving in Afghanistan, Iraq and East Timor. In 2007, I started Air Con Auckland – in 2012, this was rebranded to Clarkson Air Conditioning Ltd.

What are you passionate about in the HVAC&R industry?

Recently, I wrote to Hon David Seymour, Minister for Regulation, as I am very keen to see a national register of Producer Statement Authors. This compliance is a massive overhead in time and money when there could be a national register controlled by a national body. I was pleased to receive a response, https://issuu.com/ irhace/docs/irhace_april2024 What would you recommend?

Set your sights and go for it. I achieved my five-year business plan in just three years and I continue to aim to further develop my company’s involvement and support within the Auckland community.

MEMBER HIGHLIGHT EnviroAir EnviroAir Ltd, established in 1992, is a Tauranga owned and operated company. They specialise in the design, installation, commissioning and maintenance of commercial air conditioning, heating and ventilation, as well as medical gas systems in the Tauranga and Bay of Plenty areas.

Contact James Pengelly www.enviroair.co.nz/ Phone 07 576 6760

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Member company listing c New Zealand from Northla Southland and in between

FACT There is no official retirement age in New Zealand and many people continue to work beyond the age of 65 because they want to or need to.

Employment toolkit for older workers As the population ages and more people work later in life, New Zealand’s workforce will include more people aged over 50. Having employees of different ages provides a balanced workplace, with a range of viewpoints, problem-solving skills, attitudes and ideas.

This toolkit will help you hire, develop and retain older workers. It includes information about: •

Training and development

•

Health, safety and wellbeing

•

Flexibility to meet the needs of an older workforce

Businesses can benefit from employing older people because they bring a strong work ethic, positive attitude and can boost workplace productivity by passing on important skills and knowledge to your team.

•

They’re loyal, reliable and stay in jobs longer.

•

Older workers are motivated to continue earning as they are more likely to have financial commitments and families to support, which means they tend to stay in jobs longer.

•

They bring experience and skills.

•

Older workers can provide a wealth of knowledge and skills that come with their lifetime of work experience.

They can share their knowledge with younger teammates, helping boost productivity.

•

They create a diverse workplace.

Older Worker Employment Toolkit — business.govt.nz

OLDER WORKER TOOLKIT irhace.org.nz

AUGUST 2024

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BUSINESS

Win $20k for your business The Xero Beautiful Business Fund is back for 2024 and you could win $20k for your business.

Just like last year, there are four categories – you can enter just one or all four.

There will be four winners from each country, each receiving NZ$20,000. Four global winners will be selected from the pool of country winners from around the world. Those global winners will get an additional NZ$50,000.

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Remember why you started; let passion drive you A message from the Auckland Business Chamber…

In tough times, it’s easy to lose sight of why you started. Remember the passion and vision that drove you to begin your journey. Let that initial spark guide you through challenges and fuel your perseverance. Your passion is a powerful motivator – use it to push through obstacles and keep moving forward. Every setback is an opportunity to grow stronger and closer to your goals. Stay focused, stay passionate, and keep your ‘why’ at the forefront. Success often comes to those who refuse to give up.

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A3 REFRIGERANT AWARENESS A3 REFRIGERANT AWARENESS

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www.rlnz.org.nz

AUGUST 2024

IRHACE Industry Journal is a premium magazine for the refrigeration, heating and air conditioning industry with unique quality content that reaches a desirable audience and is free to download.

Contact us at admin@irhace.org.nz and be a part of our next issue now.

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