Nccer Hvac Already Passed

Expansion device {Ans: Provides a pressure drop that converts the high-temperature, high-pressure liquid refrigerant from the condenser into the low-temperature, low-pressure liquid refrigerant entering the evaporator}Chlorofluorocarbon (CFC) refrigerant {Ans: A class of refrigerants that contains chlorine, fluorine, and carbon}Hydronic {Ans: A heating or air conditioning system that uses water as a heat transfer medium}Hydrochlorofluorocarbon (HCFC) refrigerant {Ans: A class of refrigerants that contains hydrogen, chlorine, fluorine, and carbon}Compressor {Ans: The mechanical device that converts low-pressure, low-temperature refrigerant gas into high-pressure, high-temperature refrigerant gas.}On the job learning (OJL) {Ans: Learning obtained while working under the supervision of a journeyman}Recovery {Ans: The removal and temporary storage of refrigerant in containers approved for that purpose}Mechanical refrigeration {Ans: The use of machinery to provide cooling}Recycling {Ans: Circulating recovered refrigerant through filtering devices that remove moisture, acid, and other containments}Heat pump {Ans: A comfort air conditioner that is able to produce heat by reversing the mechanical refrigeration cycle}