Heat Pump Esco Study Guide Graded A+

The preferred method to preform adjustments to the refirgerant charge in a heat pump system is in the ________ more. {Ans: Cooling.}An R410A heat pump operating in the heating mode has a suction pressure 50 PSIG and head pressure of 285 PSIG has a compression ratio of; {Ans: 4.6:1}It is not always a good idea to immediately connect a standard gauge manifold set and hoses to a heat pump when a problem is suspected because; {Ans: The charge is critical, sometimes to 1/2 oz. refrigerant.}At temperatures above 45 degrees *F, the heat pump refrigeration cycle permits the; {Ans: Condenser to release 3 to 4 times more heat than it takes in electrical energy to drive the compressor.}When operating in the cooling mode, hot gas leaves the compressor and first flows to; {Ans: The reversing valve.}The defrost cycle can be terminated by; {Ans: Time/temperature}