The Toolshed

1 Virucidal AHU air filters

Pacific Ventilation, and Deltrian, a leading Belgian filter manufacturer, have joined forces to launch a new generation of virucidal filters for air handling units (AHUs). Pacific Ventilation says the DELTRI+ filters are Eurovent certified, and contain advanced plasma technology capable of neutralising or destroying 99 per cent of all viruses. This includes SARS-CoV-2, as tested by the Luxembourg Institute of Science and Technology. “With the DELTRI+, building owners can quickly improve existing units before considering more extensive upgrades to their ventilation systems,” says Pacific Ventilation. “Compared with other methods utilised for virus prevention, the DELTRI+ filters offer a more straightforward solution that is easy to apply and manage.” The filters are available in Australia and New Zealand exclusively from Pacific Ventilation. “Operators do not need to worry about significantly increasing energy costs with this solution,” says Pacific Ventilation managing director Peter Gibson, Affil.AIRAH. “Despite its virucidal functions and being classified ISO16890 ePM1 90 per cent, the filter holds a Eurovent Certified Performance A+ energy class rating.” Go to www.pacificventilation.com/deltri ■

2 Dwyer’s photohelic focus

Dwyer Instruments has released the Series AT-A3000, an ATEX/ IECEx-approved photohelic pressure switch/gauge. “The flameproof-approved Series AT-A3000 ATEX/IECExapproved photohelic pressure switch/gauge functions as a versatile, highly repeatable pressure switch combined with a precise pressure gauge employing the time-proven Magnehelic gauge design,” says Dwyer. The device measures and controls positive, negative or differential pressures of air and compatible gases. Two photo-transistor actuated, DPDT relays are included for low/high limit control. Set-point indicators are controlled by knobs located on the gauge face (accessible opening case after de-energising instrument). Set-points can be interlocked to provide variable dead band, which Dwyer says is ideal for control of fans, dampers, and the like. “Gauge reading is continuous and unaffected by switch operation, even during loss of electrical power,” says Dwyer. “Flameproof enclosures are available in aluminium, with a glass window, which allows for viewing of set-point needles and process pressure.” Go to www.dwyer-inst.com.au ■ 3 Avem Quirks offers the works

Australian supplier of refrigerated cabinets Avem Quirks is offering a new model that it says represents a first for energy efficiency. “Pastorfrigor’s Genova Overview model is the first commercial refrigerated wall display unit in the world to achieve Energy Class A, with Class A being the most efficient rating according to the rigorous Energy Efficiency Index (EEI),” says Avem Quirks. “Energy consumption based on a Genova OV 75 H205 GD 2500 unit is a minimal 9.3kW for both M1 and M0 options. This level of performance means that it uses approximately 62 per cent less energy than a standard glass door multideck unit.” According to Avem Quirks, as well as saving energy, the units are easy to maintain and, because of the low refrigerant charge, do not require expensive safety and monitoring measures. They also feature LED lighting, low noise output of 52dB, and a simple-to-clean condenser. Go to www.avemquirks.com.au/ ■

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4 Something new for CO2

Wilson Hot Water has developed the ECO2 range of transcritical CO2 heat recovery vessels, manufactured in Australia. CO2 is increasingly being used as a refrigerant for supermarkets, industrial freezers, cold storage and heat pumps, among other applications. Wilson ECO2 uses specially manufactured heat exchange coils because transcritical CO2 systems can produce high temperatures and pressures. The coils are high finned to provide efficient heat transfer to the heating hot water within the vessels and ultimately to the system. The vessels are available in a range of sizes using multiple heat exchange coils offering bespoke solutions. Wilson says they can also be designed and engineered to project specific requirements and kW ratings. The ECO2 vessel is manufactured from stainless steel, cased in Colorbond, and insulated with polyurethane foam to improve heat retention. Go to www.wilsonhotwater.com.au ■

5 Fitter filters with Aeris

Australian company Aeris Environmental has developed a new polymer coating for HVAC filters designed to prevent the spread of airborne viruses, including COVID-19. Aeris Guard Bioactive Filter Treatment contains a readily biodegradable active biocide that the company says kills 99.99 per cent of bacteria and viruses, including SARS-CoV-2 on the polymer coating. “A single application helps control and prevent the growth of bacteria and mould for up to 12 months,” says the company. “In addition, the Aeris filter treatment significantly improves the ability of dust filters to remove even finer dust particles than before treatment.” Aeris Environmental chairman Maurie Stang says the new product could improve air quality on public transport and help ensure safer travel. “Transport authorities should consider solutions that improve indoor air quality, are scientifically proven, and compatible with existing HVAC systems,” Stang says. Go to www.aeris.com.au ■

6 ABB’s efficiency drive

ABB has launched the new Baldor-Reliance EC Titanium integrated motor drive, which it says delivers up to 16 per cent efficiency gains compared to alternative motor designs. The product caters to the growing demand for greater efficiencies as regulations continue to tighten on the total system for fans, pumps and compressors. It is designed to achieve the highest system efficiency possible from wire to air, while using sustainable materials. ABB says the Baldor-Reliance EC Titanium product line utilises Ferrite Assisted Synchronous Reluctance (FASR) technology using non-rare-earth magnet materials to meet and exceed IE5 efficiency. It is suitable for constant and variable torque applications, across a wide speed load range and above base-speed conditions. “The EC Titanium product line is economic and efficient, even at partial loads where most fans operate,” says the firm’s David Barnard. “The real advantage is that efficiency stays high at any speed … allowing for greater fan design optimisation.” Go to campaign.abb.com/ectitanium ■

7 Remote control with Samsung

Samsung Electronics Australia has launched its Building Internet of Things Cloud (b.IoT Cloud), which enables air purifiers to be remotely managed on a large scale from one device. The company says that up to 255 air purifiers can be remotely controlled through the b.IoT Cloud. COVID-19 Quarantine Victoria (CQV) is piloting Samsung’s b.IoT Cloud within its hotel quarantine program, and is remotely monitoring more than a thousand Samsung AX60T5080WD air purifiers. According to Samsung, the efficacy of portable air purifiers has been independently verified by University of Melbourne research using the AX60T5080WD air purifier. “Research shows air purifiers can minimise the spread of harmful airborne contaminants, and this is a priority for many businesses,” says Samsung’s Jeremy Senior. “Samsung’s b.IoT Cloud offers a single interface to safely and easily monitor and manage a fleet of units via a secure network. Users can check air quality levels or cumulative hours of filter usage from a remote location.” Go to www.samsung.com.au ■

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8 New screw from Bitzer

Bitzer has released its new compact screw compressor CSW85/95 motor version 4, designed for improved efficiency in water-cooled high-performance liquid chillers. “CSW motor version 4 is a combination of the well-known Bitzer CSW screw compressor, with a special selected motor version 4 and special oil charge,” the company says. “This concept has already been successfully implemented for the Chinese market for high reliability and excellent efficiency.” Due to the requirements of the Ecodesign Directive, the number of water-cooled systems is on the rise in Europe. “CSW enables OEM screw chiller manufacturers to design and produce water-cooled air conditioning chillers that fulfil the highest international energy efficiency standards,” Bitzer says. The product range covers nine models, with displacements between 410m³/h and 1,120m³/h at 50Hz as well as 495m³/h and 1,351m³/h at 60Hz. The application envelope was designed for highly efficient water-cooled air conditioning and process chiller applications, with maximum condensing temperatures up to 46°C. Go to www.bitzer.de/au/en/about-bitzer/about-us-australia/ ■

DO YOU HAVE A NEW PRODUCT TO GO IN THE TOOLSHED? Email mark.vender@airah.org.au All submissions received will be considered, though publication cannot be guaranteed.

NEW DATES

16-18 AUGUST 2022

The ongoing implications of COVID-19 has compelled ARBS Exhibitions to move the event, originally scheduled for April 2022, further on to 16-18 August 2022. Our ongoing priority has always been to ensure the safety of everyone at the event. We anticipate by moving ARBS 2022 to August, the situation in Australia will be much improved. We look forward August 2022 with increased confi dence that ARBS will continue to provide a dynamic and engaging experience for the entire HVAC&R and building services industry.

16-18 AUGUST 2022 | MELBOURNE CONVENTION & EXHIBITION CENTRE