HEAT PUMP ESCO 2025
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Some heat pump systems use a ______________ as a metering device. -
ANSWERS-Fixed orifice.
QUESTION 2
The slide valve and piston in the reversing valve is actuated by pressure directed
through the; - ANSWERS-Solenoid and pilot valve.
QUESTION 3
During the heating cycle, the outdoor coil is use as; - ANSWERS-The evaporator.
QUESTION 4
During the cooling cycle, the indoor coil becomes; - ANSWERS-The evaporator.
QUESTION 5
END OF
PAGE 1
, HEAT PUMP ESCO 2025
During the defrost cycle, the outdoor fan is usually; - ANSWERS-Turned off.
QUESTION 6
Heat pump systems which use a thermostatic expansion valve at each coil will also
have; - ANSWERS-A by-pass lines with check valves.
QUESTION 7
Refrigerant flow through the compressor; - ANSWERS-is always the same
regardless of operating mode.
QUESTION 8
Because of the possibility of liquid flood-back, a heat pump that uses a
reciprocating compressor should be equipped with a; - ANSWERS-Suction
Accumulator.
QUESTION 9
END OF
PAGE 2
, HEAT PUMP ESCO 2025
A scroll type compressor; - ANSWERS-is less susceptible to damage from liquid
flood-back.
QUESTION 10
On a split system heat pump. A "no heat/no cooling" service call, you turn the
thermostat to the fan on/ cont position and the indoor fan operates. This action
verifies that; - ANSWERS-The transformer is functioning.
QUESTION 11
On most air-to-air heat pumps; - ANSWERS-The indoor and outdoor coils are the
same size and physical capacity.
QUESTION 12
A heat pump system, operating at 45°F ambient, may be _______ efficient than
electric resistance heat - ANSWERS-3 to 4 times more.
QUESTION 13
END OF
PAGE 3
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
Some heat pump systems use a ______________ as a metering device. -
ANSWERS-Fixed orifice.
QUESTION 2
The slide valve and piston in the reversing valve is actuated by pressure directed
through the; - ANSWERS-Solenoid and pilot valve.
QUESTION 3
During the heating cycle, the outdoor coil is use as; - ANSWERS-The evaporator.
QUESTION 4
During the cooling cycle, the indoor coil becomes; - ANSWERS-The evaporator.
QUESTION 5
END OF
PAGE 1
, HEAT PUMP ESCO 2025
During the defrost cycle, the outdoor fan is usually; - ANSWERS-Turned off.
QUESTION 6
Heat pump systems which use a thermostatic expansion valve at each coil will also
have; - ANSWERS-A by-pass lines with check valves.
QUESTION 7
Refrigerant flow through the compressor; - ANSWERS-is always the same
regardless of operating mode.
QUESTION 8
Because of the possibility of liquid flood-back, a heat pump that uses a
reciprocating compressor should be equipped with a; - ANSWERS-Suction
Accumulator.
QUESTION 9
END OF
PAGE 2
, HEAT PUMP ESCO 2025
A scroll type compressor; - ANSWERS-is less susceptible to damage from liquid
flood-back.
QUESTION 10
On a split system heat pump. A "no heat/no cooling" service call, you turn the
thermostat to the fan on/ cont position and the indoor fan operates. This action
verifies that; - ANSWERS-The transformer is functioning.
QUESTION 11
On most air-to-air heat pumps; - ANSWERS-The indoor and outdoor coils are the
same size and physical capacity.
QUESTION 12
A heat pump system, operating at 45°F ambient, may be _______ efficient than
electric resistance heat - ANSWERS-3 to 4 times more.
QUESTION 13
END OF
PAGE 3
