Refrigeration

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As more grocers switch to environmentally friendly CO₂ refrigeration systems, it’s essential for HVACR contractors and technicians to understand how these systems work. 

Taper retrofitted five H Mart stores with insulated doors on their refrigerated cases, which will result in $300,000 in energy savings every year. 

Thanks to a generous grant, two grocers in the Bronx were able to replace their HFC refrigeration systems with ultra-low GWP R-290 cases. 

Short on R-454B? Don’t risk mixing refrigerants — doing so could jeopardize safety, system performance, and your reputation.

Always let the refrigeration system reach a steady state before making repairs or adjustments. Skipping this step can mess up measurements, leading to misdiagnoses and wasted time. 

Technology transitions can be scary, but refrigeration manufacturers have made it easier by offering evaporators that can work with either an A1 or an A2L refrigerant. 

The U.S. faces a severe refrigerant shortage—here’s what’s driving costs up 650%.