A technician is working with an A2L refrigerant such as R-32 or R-1234yf. What added safety consideration applies compared with older non-flammable HFCs?
Explanation
A2L refrigerants are mildly flammable, so technicians must keep ignition sources away, ensure ventilation, and follow the manufacturer's and applicable code safety requirements. Being flammable does not make them safe to vent, and they cannot be treated exactly like non-flammable R-22, nor do they excuse skipping leak detection. Proper handling of low-GWP flammable refrigerants is increasingly important as they replace higher-GWP HFCs.
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