Heat pump HVAC Review Exam with Correct Answers

This component of a heat pump system holds some of the charge of the system out of circulation during the heating cycle. - Charge Compensator What is the temperature in degrees Fahrenheit of R-22 at a pressure of 317 psig? - 135 When a vapor refrigerant is at its saturation point, adding more heat will cause the refrigerant to condense. - False The Charge Compensator stores refrigerant in the heating mode. It will be empty in the cooling mode. - True 24 in x 20 in Return Grille Air Velocity = 400 FPM What is the CFM through the grille? When using decimals, round to the nearest hundredth. - 1133.33 His component of a heat pump system protects the compressor from liquid migration during the off-cycle. - Crankcase heater In the heating mode, the refrigerant is metered through the expansion device at the ____________ coil. - outdoor If you slow down the airflow across an evaporator coil, you can remove more moisture from the air. - True The metering device that can control the evaporator superheat is called the: - Thermostatic Expansion Valve In the Heating Mode, the outdoor coil operates as a(n) __________. - Evaporator Typically, the minimum air flow for heat pump applications is __________________. - 400 cfm/ton The four-way valve (reversing valve) will send the hot discharge gas to the indoor coil in the _________. - Heating Mode The temperature at which condensation forms is called the _________________ temperature. - dew point