Heat Pump Prep Test || All Questions Answered Correctly.

An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has a correct answers Reversing Valve What is the difference between "demand defrost" and "timed defrost?" correct answers Demand defrost happens only when needed and timed defrost is based on time/temperature The thermostat that controls the auxiliary electric heat according to the outdoor temperature is called correct answers outdoor ambient thermostat The outdoor temperature at which the heat pump provides the same amount of heat as the heat loss of the conditioned space without auxiliary heat is known as correct answers initial balance point At what temperature is an outdoor ambient thermostat normally set correct answers slightly above the initial balance point the outdoor coil is frozen solid on a "no heat" service call. The most likely reason is correct answers the outdoor fan is inoperative in order to determine a heat pump's balance point, you must first calculate correct answers The building's heat load when a heat pump is used for heating and cooling, the system is sized by the correct answers cooling load a high efficiency heat pump system designed to function from high to low ambient conditions below 10F, may have? correct answers an auxiliary heat exchanger injected with an ethylene glycol solution Room thermostats for heat pump should be installed correct answers As near to the main return air grill as possible when the heat pump compressor has malfunctioned, the customer has the option to switch the system into correct answers emergency heat mode Start-up with a night set back digital thermostat requires the technician to always correct answers teach the customer how to program the thermostats the heat pump defrost board can be manipulated by the technician to correct answers simulate the defrost cycle the air-to-air heat pump outdoor unit is most efficient if located correct answers in a moderate climate zone