Specifile Spotlight September 2021: Heating, ventilation, and air conditioning

SPOTLIGHT

SEPTEMBER 2021

HEATING, VENTILATION & AIR CONDITIONING

= INDOOR AIR QUALITY SOLUTIONS = HOW HVAC SYSTEMS WORK

Daikin’s

streamer technology inactivates more than 99.9% of the novel coronavirus

Daikin confirms the effectiveness of its patented streamer technology, which successfully inactivated more than 99.9% of Novel Coronavirus (SARS-CoV-2) after irradiating the virus for 3 hours.

The study has been conducted by Daikin Industries Ltd in cooperation with Professor Shigeru Kyuwa from the Department of Biomedical Science of the University of Tokyo, and a group of research led by Professor Shigeru Morikawa from the Department of Microbiology of the Okayama University of Science.

EXPERIMENTAL RESULTS The research team conducted an experiment where the viruses were irradiated for a duration of 3 hours with Daikin Flash Streamer technology. The

results of this experiment showed that: • Flash Streamer discharge inactivated 93,65% of coronavirus (SARS-CoV-2) after an irradiation time of 1 hour.

• Flash Streamer discharge inactivated 99,97% of coronavirus (SARS-CoV-2) after an irradiation time of 3 hours

Source: “Study report on the inactivation effect of plasma ion generator (Daikin Streamer) on SARS-CoV-2” redacted by Shigeru Morikawa, Department of Veterinary Medicine, Microbiology Course, Okayama University of Science.

The tests described herein only concern the patented Streamer Technology. The effects of products equipped with Streamer Technology or the effects in the actual use environment may differ. For more information on the Daikin products incorporating the Streamer Technology, please refer to the relevant product information.

Streamer technology, developed by Daikin in 2004, performs an oxidative decomposition of harmful substances. The Streamer discharge is a type of plasma discharge featuring an innovative air purification technology that stably generates high-speed electrons.

Find out more

Keep cool this Spring Solent has the perfect collection of ceiling fans designed for those with a finer taste in life.

Ceiling fans are the most commonly used cooling appliance in homes around the world. And in the twentyfirst century, Solent has a wide variety of colours, styles and finishes to choose from that will perfectly complement the different lifestyle and décor choices of almost anyone.

Solent is a high-quality alternative to mass retailers and their fans are

overwhelmingly appealing to the bespoke customer.

Every fan component is fully customisable and can be personalized to the customer’s individual specifications, creating unique masterpieces. Solent offers a three-year warranty that gives you the peace of mind that you expect when you make an appliance purchase. If your Solent fan had to give you any troubles

in the first three years of purchase, Solent will send out a technician to assess the fan and they will either repair or replace it free of charge! So buying a Solent fan is not just a purchase, it’s an investment into your wellbeing and comfort.

Solent has a pro-active customer care division who will make sure that

your queries are always answered on time and that you are assisted quickly and efficiently! You can rest assured that you will always feel cared for by the Solent Team.

Don’t just take our word for it, put them to the test! Go to www.solent.co.za.

At Solent, they put bespoke fans are at your fingertips!

Features to consider when buying a ceiling fan FEATURES TO CONSIDER WHEN BUYING A CEILING FAN: ENERGY SAVING Probably one of the most important features to keep in mind while buying a fan is that it saves you far more electricity than other cooling appliances like an air conditioner. Ceiling fans are effective and they will save you a fortune in the long run.

CLASS OF FANS Within the Solent range, you will find many different collections of fans, such as Whirlwind, High Breeze, High Breeze 100, Maxima, Maxima 100, Senorita and Albatross. Each range is

unique and appeals to a different type of design and décor.

Be sure to find the one that suits you best!

DESIGNER & DECORATIVE Solent’s fan options range from simple & practical to beautifully designed & extravagant. They offer optional addon’s such as light kits, remote controls and various blade styles, you definitely will be spoilt for choice.

SPEED OF FANS This is an important factor to be considered. The fan should be able to be controlled at different speed levels for your personal preference and comfort. Solent fans can provide a low breeze on the 1st speed going up to a powerful breeze on the 5th speed, it all depends on your desired level of comfort.

Designed with high performing & premium quality blades, Solent fans ensure a high air thrust with minimum noise pollution.

Indoor air quality solutions Indoor Air Quality (IAQ) refers to the air quality in a building or structure, breathed in every day by the building’s occupants.

When planning new residential buildings, schools, offices or light commercial buildings, many things must be considered. Besides structural factors, there are also the topics of heating, cooling and something often neglected: indoor air quality.

Did you know that the indoor air we breathe, whether at home, at the office, or in a hotel room could in fact be much more polluted than the air outside?

• 90% of our lives is spent indoors • Indoor air quality can be 2 to 5x worse than outdoor air quality because of pollutants, such as pollen, bacteria, etc.

Indoor Air Pollutants and Particles With the right system (air conditioning, ventilation, air purification equipment) air pollutants such as pollen, spores, cement dust, bacteria, viruses or germs can be filtered out of the air. The smaller these particles, the more dangerous they are for our health, therefore the particulate matter is categorized based on their size.

Indoor Environment Quality Components 1. Ventilation: Ensures the provision of fresh and clean air.

2. Energy recovery: Delivers energy savings by transferring heat and moisture between airflows thus helping to bring

Let’s have a closer look at Ventilation and Filtration, 2 components directly linked to improved Indoor Air Quality.

Ventilation Ventilation systems ensure optimal climate conditions by providing a fresh, healthy and comfortable environment for buildings of all sizes and different applications. In a completely closed room in a building, air cannot easily enter/leave the room, causing air pollutants to remain and accumulate in the room. This

supply air to the required indoor conditions for temperature and humidity.

3. Air processing: Delivers the required conditioned air to optimize the energy efficiency of indoor HVAC equipment.

4. Humidification: Ensures the

could impact the health of people in the room. Ventilation is essential for diluting and removing these air pollutants.

A well-maintained ventilation system and adequate air exchange rate have been demonstrated to be an effective solution to protect people from contaminants, including viruses.

desired moisture level in the conditioned space.

5. Filtration: Ensures clean and healthy air by filtering out pollen, dust, odours and other contaminants that are harmful to our health.

Filtration Virus particles can piggyback on larger dust particles or droplets and travel through a building.

Infectious diseases can be controlled by interrupting the transmission routes used by a pathogen. Using high-

efficiency air filters in air conditioning and ventilation systems can help to capture the majority of airborne particles, reduce the airborne concentration of bacteria and viruses and thus the risk of transmission through the air.

Air disinfection add-ons for filtration With a good filtration system, you can capture very small Particle Matter from the airstream, but the captured viruses, bacteria and fungal organisms are not inactivated.

They can still replicate and potentially cause diseases.

In order to prevent this from happening air disinfection is needed.

Top air treatment through unique Flash Streamer Daikin’s patented Flash Streamer technology inactivates more than 99.9% of the Novel Coronavirus (SARS-Cov-2). The massive streamer discharge hits the

allergens and hazardous chemical substances, decomposing and fragmenting their surface proteins, which are then destroyed through oxidation. During the test,

allergens were placed on the electrode of the streamer discharge unit and then photographed through an electron microscope after being irradiated.

UV-C light Ultraviolet energy inactivates viral, bacterial, and fungal organisms so they are unable to replicate and potentially cause disease. The entire UV spectrum is capable of inactivating microorganisms, but UV-C energy (wavelengths of 200 – 280 nm) provides the most germicidal effect.

Disinfection and sanitization

through UV-C light are widely used in hospitals. UV-C light however is a health hazard to the human body. By treating recirculated & fresh air with UV-C light directly within the Air Handling Units, clean and microbe-free air can be achieved without exposing the human body to harmful UV light.

How HVAC systems work Your heating and cooling system keeps your home warm in the winter and cool in the summer. But there’s more than temperature when it comes to home comfort.

Your HVAC system can purify and enhance the air within your home, maintain optimal humidity levels and much more.

Understanding how HVAC systems work requires a look at the primary components that make up your system.

Check out our HVAC Glossary to better understand these components and how they deliver comfort and value to your home.

Next, let’s take a look at the different types of HVAC systems.

TYPES OF HVAC SYSTEMS The type of HVAC system used in your home is dependent on the configuration of your home’s ductwork and type of energy supply. Each system typically includes either a furnace or electric heat pump to deliver heated air, an air conditioner to provide cooled air, ductwork to allow warm and cool air to travel throughout your home and a thermostat to control system functions.

How these components work together is where each system differs. Residential Heating and cooling typically fall into one of the following system categories.

HEATING AND AIR CONDITIONING SPLIT SYSTEM

by the control of your thermostat.

A split system also referred to as a forced-air HVAC system, involves an air conditioning unit or heat pump installed outside your home and a furnace or air handler installed inside.

Heated or cooled air is forced through the home’s ductwork via a mechanical blower. The conditioned air travels through ducts and is controlled through your home thermostat.

DUCT FREE MINI SPLIT HVAC SYSTEM

HYBRID HEAT PUMP HVAC SYSTEM In this HVAC system, an electric heat pump is used in conjunction with a furnace.

The furnace is used to heat the home when outdoor temperatures are colder.

During milder temperatures, when indoor heating is still needed, the heat pump can be an efficient, supplemental heating source. Additionally, the heat pump can also be the source of cooling when air conditioning is needed.

Balancing the flow between components is automated

For some homes, ductwork (or lack thereof) can be an obstacle. In these instances, homeowners may rely on window unit air conditioners.

A duct-free, mini-split system is an ideal solution for older homes that are not equipped with HVAC ducting or single rooms, such as a renovated

attic or garage, that were not originally fitted with ductwork.

Duct-free, mini-split units are installed directly into the areas of the home that require heating and cooling. Typically, one unit will manage the comfort of a single room, or zone, in your home. Depending on the configuration of your home and the system capabilities, units may be wall-, ceiling-, or floor-mounted – and in some instances, ducting may be incorporated to provide multizoned comfort from one unit.

PACKAGED HEATING AND AIR CONDITIONING SYSTEM Residential packaged HVAC systems are compact and efficient. The system design consolidates all the components of a traditional, split HVAC system into a single unit that sits outside your house. This is an ideal fit for homeowners without a basement or who require a rooftop solution.

ADDITIONAL CONSIDERATIONS Beyond heating and cooling, there are several additional factors to consider when understanding how an HVAC system works. These factors can impact your energy costs and influence the health and comfort of your home.

ENERGY EFFICIENCY Energy efficiency is an important consideration.

Finding a system that is the ideal size for your home plays an important role in ensuring just the right amount of energy is being used.

Additionally, ENERGY STAR® ratings make identifying efficient heating & cooling

units easy. ENERGY STAR® is a standard created by the U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA). In the case of HVAC systems, this label denotes products that save at least 15% to 25% more energy than standard products.

Energy-efficient HVAC products are not only good

for the environment, but they can also provide significant savings on your utility bills.

Learn more about HVAC energy savings with this simple guide.

INDOOR AIR QUALITY Your HVAC system is responsible for regulating and circulating airflow around your home, so improving indoor air quality (IAQ) can provide significant improvements to both the comfort and health of your home. Integrating IAQ products, such as ventilators, humidifiers, dehumidifiers and air cleaners can be helpful in homes with pets or those with allergies, asthma or concerns related to airborne viruses, bacteria or mold.

THERMOSTATS AND SMART HOME CONTROLS Your thermostat is the command centre of your HVAC system. In addition to controlling indoor temperatures, some thermostats integrate smart home features into your HVAC system. Programmable

thermostats are proven to improve HVAC system efficiency and reduce energy costs. YORK® takes this a step further by integrating voice control using Amazon Alexa, and remote access and monitoring via a smart device (including Apple Watch®) in some communicating thermostats. Plus, some YORK® thermostats include service alerts and optional remote dealer monitoring and access to ensure your HVAC system provides outstanding home comfort for years to come.

It’s important to understand how HVAC systems work when you are considering a system repair or replacement. YORK® Certified Comfort Expert™ Contractors are here to help you determine which system is best for your home and lifestyle.

Design &

Genius in one Unique in the market, the fully flat cassette is a remarkable blend of iconic design and engineering excellence with an elegant white or a silver and white finish. Fitting flush within the ceiling modules and fully flat with the ceiling itself, the cassette is both stylish and unobtrusive. Superb efficiency and comfort is delivered through the combined use of floor and presence sensors and, when necessary, the individual flap control via the wired remote controller makes it simple to close one flap.

FFQ-C / RXS-K/F

FFQ-C (white panel)

› › › › › › › ›

Fully flat cassette

RXS25-35K

FFQ-C (silver and white panel)

BRC1E52A/B

BRC7F530W

Unique design in the market: integrates fully flat into the ceiling and fits flush into architectural ceiling modules Remarkable blend of iconic design and engineering excellence with an elegant finish in white or a combination of silver and white The presence sensor (optional) adjusts the set point with standard 1°C if no one is detected in the room, it is possible to adjust the set point with 2, 3 or 4°C (optional).

It also automatically directs air flow away from any person to avoid draught.

The floor sensor (optional) detects the average floor temperature and ensures even temperature distribution between ceiling and floor. Cold feet will become history.

Individual flap control: one flap can be easily closed via the wired remote controller (BRC1E52) in case you would refurbish or rearrange your interior Low energy consumption thanks to specially developed small tube heat exchanger, DC fan motor and drain pump Fresh air intake for healthy living No optional adapter needed for DIII-connection, link your unit into the wider building management system.

Heating & Cooling Indoor unit Cooling capacity Min./Nom./Max. Heating capacity Min./Nom./Max. Seasonal efficiency Cooling Energy label (according to Pdesign EN14825) SEER Annual energy consumption Heating Energy label (Average Pdesign climate) SCOP Annual energy consumption Nominal efficiency EER (cooling at 35°/27° COP nominal load, heating Annual energy consumption at 7°/20° nominal load) Energy label Cooling/Heating Casing Colour HeightxWidthxDepth Dimensions Unit Weight Unit Decoration panel Model Colour HeightxWidthxDepth Dimensions Weight Fan - Air flow rate Cooling High/Nom./Low Sound power level Cooling Nom. Sound pressure level Cooling High/Nom./Low Piping Liquid OD connections Gas OD Power supply Phase / Frequency / Voltage Outdoor unit HeightxWidthxDepth Dimensions Unit Weight Unit Fan - Air flow rate Cooling High/Low Heating High/Low Sound power level Cooling Nom./High High/Low/Silent operation Sound pressure Cooling level High/Low/Silent operation Heating Operation range Cooling Ambient Min.~Max. Heating Ambient Min.~Max. Refrigerant Type/GWP Piping Piping length OU - IU Max. connections Level difference IU - OU Max. Power supply Phase / Frequency / Voltage Current - 50Hz Maximum fuse amps (MFA)

kW kW kW kWh kW kWh

kWh

mm kg

mm kg m³/min dBA dBA mm mm Hz / V

mm kg m³/min m³/min dBA dBA dBA °CDB °CWB m m Hz / V A

*FFQ25C -/2.5/-/3.2/A 2.5 5.25 168 A+ 2.31 4.12 728 4.50 3.80 280 A/A to be confirmed 260x575x575 17.5

*FFQ35C *FFQ50C *FFQ60C -/3.4/-/5.0/-/5.7/-/4.2/-/5.8/-/7.0/A+ A+ A+ 3.4 5.0 5.7 5.60 5.70 5.60 210 302 354 A+ A+ A+ 3.45 3.84 3.96 4.09 4.10 4.17 1,151 1,316 1,317 3.70 3.21 3.01 3.41 3.50 3.41 460 780 945 A/B A/B B/B to be confirmed to be confirmed to be confirmed 260x575x575 260x575x575 260x575x575 17.5 17.5 17.5 BYFQ60CW/BYFQ60CS/BYFQ60B2 Fresh White (N9.5)/Fresh white (N9.5) + Silver (B471)/Pure White (RAL 9010) 46x620x620/46x620x620/55x700x700 2.7/2.7/2.7 9/8/6.5 10/8.5/6.5 12/10/7.5 14.5/12.5/9.5 48 51 56 60 31/28/25 34/30/25 39/34/27 43/40/32 6.35 6.35 6.35 6.35 9.5 9.5 12.7 12.7 1~ / 50/60 / 220-240/220 1~ / 50/60 / 220-240/220 1~ / 50/60 / 220-240/220 1~ / 50/60 / 220-240/220 RXS25K 550x765x285 34 33.5/30.1 28.3/25.6 -/61 46/-/43 47/-/44 -10~46 -15~18 R-410A/1,975 20 15 1~ / 50 / 220-240 10

RXS35K 550x765x285 34 36.0/30.1 28.3/25.6 -/63 48/44/48/45/-10~46 -15~18 R-410A/1,975 20 15 1~ / 50 / 220-240 10

RXS50K 735x825x300 47 50.9/48.9 45.0/43.1 -/63 48/44/48/45/-10~46 -15~18 R-410A/1,975 30 20 1~ / 50 / 220-240 20

RXS60F 735x825x300 47 50.9/42.4 46.3/42.4 63/49/46/49/46/-10~46 -15~18 R-410A/1,975 30 20 1~ / 50 / 220-240 20

*Note: grey cells contain preliminary data

67

ARCOTHERM

mobile hot air generator Applied Heat ARCOTHERM product range of imported air heaters consists of a large variety of air blowers, also known as space heaters. These have been sold and serviced in RSA since 1986.

These heaters are generally portable and use either diesel, paraffin, gas or electricity to generate a stream of hot air at their outlets. The hot air may be used for applications such as comfort heating of factories, workshops, garages, stores, site offices.

Also used for semi-industrial applications such as product batch or process drying or curing, site work heat drying/ curing, agricultural industry applications such as grain drying/greenhouse tunnel heating, paint shops for the motor industry and fibreglass

industry amongst others.

OVERVIEW THERMAL OIL HEATING SYSTEMS Process evaluation, system design and engineering for oil heating applications up to 350ºC. Fuel fired: light oil/ paraffin or diesel/LPG or natural gas up to 3400kW per unit. Electrical thermal oil heater systems up to 1260kW per unit. Modular platform/ skid assemblies – ready to run.

FLASH STEAM BOILERS Process evaluation, system design and engineering for steam systems from 10 Bar standard up to 40 Bar. Fuel fired: light oil/paraffin or diesel/LPG or natural gas up to 1830kW per unit. Modular platform/skid assemblies – ready to run Boiler rentals.

GOLD PROCESSING/ELUTION HEATING SYSTEMS Specialising in custom

design and manufacture of modular heating platform skids, for use specifically for CIL/CIP systems for the gold desorption process [ZADRA or AARL process systems].

The strip solution heaters are widely used all over the world and have proven themselves rugged and reliable, with over 80 such systems made. The company has its strongest client base within the gold industry. Eluant heating is achieved using thermal oil or water as heat medium.

Capacity allows for the construction of the complete system prior to the elution column. Energy sources such as electricity, diesel or gas can be offered.

HOT AIR SPACE HEATERS Process evaluation and system design Fuel fired: diesel/paraffin/LPG gas.

Portable or higher output fixed installations. Electric air heaters fixed or portable Heater maintenance and service.

PROCESS HEAT EXCHANGERS Process evaluation, system design and engineering.

Steam or hot oil exchangers in purpose built shell & tube type, plate type, finned tube formats. Heat exchanger control and reticulation circuits on heating medium side.

DIRECT VEGETABLE/EDIBLE OIL HEATER SYSTEMS Process evaluation, system design and engineering.

Applications for direct oil

heating up to 190ºC for snack industry – fryers or similar.

Fuel fired: light oil/paraffin or diesel/LPG or natural gas up to 1150kW per unit.

HIGH TEMPERATURE VALVES, TANKS & ANCILLARIES Range of specialist control/ isolation/safety valves/filters/ check valves Expansion and deaeration vessels/pump stations/skid assemblies Applications for steam or thermal fluid heating mediums

USED/REFURBISHED EQUIPMENT – SALES AND RENTAL Stock of second hand refurbished steam generators and thermal oil heaters for sale or rental – subject to stock.

HEATER AND BOILER/PLANT SPARES Full range of spares and upgrades for systems dating back to 1969 Please email us for further information.

HEATING SYSTEM PROCESS EVALUATION, SIZING AND DESIGN Process evaluations and site consults. System design and engineering for heater circuit reticulation and sizings.

3D modelling/modular systems. Energy audits/fuel assessments.

HEATER AND BOILER SERVICING, COMMISSIONING AND REPAIRS Workshop repair and refurbishment capability, system upgrades and improvements. Coil replacements – all systems from 1969. Site servicing and repairs. Plant commissioning – local and worldwide Plant maintenance and shutdowns.

Concealed ceiling unit with medium ESP FBQ-D, FXSQ-A - INVERTER

Home leave

Optimum comfort guaranteed no matter the length of ductwork or type of grilles

operation

Powerful mode

Multi tenant (FXSQ)

• Top efficiency in the market • Automatic air flow adjustment function measures the air volume and static pressure and adjusts it towards the nominal air flow, whatever the length of duct, making installation easier and guaranteeing comfort.

Moreover, the ESP can be changed via the wired remote control to optimize the supply air volume • Slimmest unit in class, only 245mm • Discretely concealed in the ceiling: only the suction and discharge grilles are visible • Low sound level

• Medium external static pressure up to 150Pa facilitates using flexible ducts of varying lengths • Reduced energy consumption thanks to specially developed DC fan motor • Flexible installation, as the air suction direction can be altered from rear to bottom suction • Standard built-in drain pump increases flexibility and installation speed • No optional adapter needed for DIII-connection, link your unit into the wider building management system