How does a heat pump resemble a refrigeration system?
It has all the same components except a reverse valve
Name three common sources of heat in a heat pump.
Air, water, and geothermal.
What large line connects the indoor unit to the outdoor unit?
The gas line
Why is the indoor unit not called an evaporator?
Cause it can be both an evaporator and a condenser.
When is the outdoor unit called the evaporator?
In the cooling season
The indoor coil is called the condenser during what season?
The cooling season
Why is it important to have drainage for the outdoor unit?
Cause the ice build up will act as an insulator and reduce the heat transfer processes thus lowering the COP.
Which metering device is most effective in next pumps?
The TXV
Where is the only permanent suction line in a heat pump?
The line going to the compressor
What type of drier may be used in the liquid line of a heat pump?
Biflow filter drier
Where must the suction line drier be placed after a motor burnout?
In the true suction line.
What controls the heat pump to determine whether it is in the heating mode or the cooling mode?
The thermostat
Can a heat pump switch modes automatically?
Yes
What must be done when the outside coil has major frost and ice build up on it?
Turn the defrost mode on
All heat pumps are practical in the U.S.
False, because there's different kinds of heat pumps
Why are scroll compressors more efficient than reciprocating compressors?
Because they don't require crankcase heat due to them not being sensitive to liquid.