YEARS
Sponsored by Mitsubishi Heavy Industries Refrigeration Product
A2LcellarMatch TEV Limited
liquid receiver. In addition, an electronic expansion valve is fitted to the condensing unit to further improve efficiency. The interconnecting pipe is now an insulated low pressure expansion line which allows the refrigerant to pass through the evaporator coil, cooling the air and returning as suction gas back to the compressor in the normal way.
T
he use of A2L refrigerants introduces new challenges, the most critical being severe limitations in refrigerant charge
levels for retail spaces. Standard condensing units have a receiver and the systems are charged to a sight glass. This results in high refrigerant charge levels and uncertainty about the final charge weight. A new solution is needed with reduced
refrigerant and one that gives certainty on the charge level at the specification stage. Marstair A2LcellarMatch challenges the current thinking by providing a critically charged solution based on a match with the chosen evaporator. This is engineered to keep the refrigerant charge to a minimum. A large range of condensing units are available, which can matched to suit the Marstair A2L ready cellar coolers. Marstair has replaced the traditional
heat exchanger with a modern, low volume micro-channel condenser and do not fit a
The refrigerant charge for any system match with a known pipe run and evaporator can easily be calculated. This is then easily comparable to the allowable charge limit within all applications. A2LcellarMatch is said to be the only solution which provides a complete solution on a sub 150 GWP refrigerant for cellar cooling. The refrigerant charge for any cellar system with a known pipe run can easily be calculated, meaning A2LcellarMatch can easily be selected giving clients complete confidence their selection can be applied both safely and in compliance with regulations at the specification stage. This revolutionary approach to retail refrigeration systems removes the obstacles to the use of A2L refrigerants in this application. See table 1 in the pdf. The reduction in the F-gas quota requires lower GWP refrigerants
to be incorporated across all applications. So far, very little has changed in the cellar cooling sector, A2L refrigerants will give the necessary ‘Step Change’ required in this sector.
Marstair A2L systems remove the barriers for the use of A2L refrigerants for cellar cooling applications by providing a cost effective, easily specified and installed solution that meets long term GWP reductions requirements. Marstair A2LcellarMatch provides the solution the market sector needs, allowing a major shift in refrigerant GWP reduction. Not only does the refrigerant GWP reduce from approx. 1774 (R407C) to 148 (R454C), but the quantity of refrigerant used is also reduced. These new systems are also 11% more efficient than the already highly efficient Marstair CXE/CKC systems. New environmental testing facilities have been built at Marstair’s UK factory in Brighouse. Eighteen months of comprehensive and detailed testing has been completed. The 93% reduction in refrigerant GWP and environmental benefits A2L refrigerants can deliver are clear and obvious. Key to their success and the delivery of their environmental benefits will be how quickly consultants, distributors and refrigeration contractors upgrade from traditional cellar cooling equipment to a new solution.
of the year
46 May 2022
www.acrnewsawards.com
Steve Gill, founder of World Refriger- ation Day reveals the winner.
Dominic Holland (left) with Chris Chisman and Richard West from TEV and Russell Cook (far right) from sponsor Mitsubishi Heavy Industries.
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