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When a system is in deep vacuum;

Recovery equipment must be;

Recovering multiple types of refrigerants in the same cylinder;

Refrigerants in large quantities can cause suffocation because;

The component of a refrigeration system which changes a high pressure vapor to a high pressure liquid is the:

EPA regulations include which of the following in the definition of a small appliance?

Technicians who perform sealed-system service on small appliances must have;

If, after installing a fitting for the purpose of recovering the appliance’s refrigerant, you find that the system pressure is 0 psig;

Self-contained or active recovery equipment;

Small appliances in recreational vehicles may use refrigerants such as Ammonia, Hydrogen, and water. These refrigerants;