Page 23 - Climate Control News Aug-Sep 2020

Chiller Feature
MTA sets new energy benchmarks
MTA SPA HAS been focused on product development to meet the upcoming ERP2021 energy reduction program for Eu- rope as well as meeting local energy bench- marks in Australia.
Key development areas for the MTA range of air-cooled water chillers include new ad- ditions to TAEevo Tech.
This range of scroll compressor air- cooled process chillers now covers nominal cooling capacities between 8 to 259 kWr as well as key energy saving technologies such as electronic expansion valves, variable speed condenser fans and oversized con- densers to reduce compressor discharge pressures and increase maximum ambient run temperatures.
The Aries Tech 2 has undergone a com- plete redesign.
The Aries Tech scroll compressor air- cooled chiller range now offers nominal cooling capacities of 162 to 615kWr.
This range now comes as standard with shell and tube evaporators, V configuration condenser coils, and optional internal chilled water buffer tanks with choice of sin- gle or dual water pumps. There is also wider choice on refrigerant type, there is standard with R410A or opt for a lower GWP refriger- ant, R545B.
MTA has also undertaken further devel- opment on the Phoenix Plus 2 range.
This range of screw compressor air- cooled chillers now covers a cooling ca- pacity range of 375 to 1500 kWr. The Phoenix Plus 2 range incorporates Bitzer screw type compressors with three different refrigerant options – standard R134a, or the choice of lower GWP options of R513A or
HFO R1234ze.
For further details on the MTA
product range, visit www.mta-au.com or contact MTA on 1300 304 177 / email sales@mta-au.com.
LEFT: The Aries Tech 2 has undergone a complete redesign.
EPA issues A2L options
THE ENVIRONMENTAL PROTECTION Agency (EPA) in the United States has proposed a list of A2L refrigerants as lower GWP alternatives to R410A in self-contained and split-system air conditioning units.
The proposal has been submitted to the Signifi- cant New Alternatives Policy (SNAP), which was established to identify substitutes for ozone de- pleting substances. The list includes R32, R452B, R454A, R454B, R454C and R457A for use in new residential and light commercial air conditioning and heat pumps.
According to the EPA the proposed list can only be used in equipment specifically designed for use with these refrigerants.
Limits are placed on charge sizes, and include greater ventilation requirements, refrigerant leak sensors, alarms and self-shutoff valves.
The proposal stipulates the inclusion of a number of safety and flammability warning labels both in- side and outside the equipment.
While R32 has already been widely adopted around the globe, the other five refrigerants are blends made up of R32, R125, R1234yf and R152a.
ABOVE: The proposed list is for specific equipment including split-system units.
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CLIMATE CONTROL NEWS AUGUST-SEPTEMBER 2020
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