ARLINGTON, Va. — The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) announced significant changes to refrigerant paint color designations in the revised version of AHRI Guideline N, ...
ARLINGTON, Va. — The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has announced significant changes to refrigerant paint color designations in the revised version of AHRI Guideline N, ...
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