1
Heat Pump ESCO Questions with Verified
Answers 2025
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 an - -Reversing valve
What is the difference between "demand defrost" and "timed defrost"? - -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 the; - -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 an auxiliary heat is known as the; - -Initial
balance point
At what temperature is an outdoor ambient thermostat normally set? - -Slightly
above the initial balance point.
The outdoor coil is frozen solid on a "no heat" service call. The most likely reason is; -
-The outdoor fan is inoperative.
In order to determine a heat pumps' balance point, you must first calculate; - -The
building's heat load.
When a heat pump is used for heating and cooling, the system is sized by the; - -
Cooling load.
, 2
A high efficiency heat pump system designed to function from high to low ambient
conditions below 10*F, may have? - -Two outdoor coils with each one incorporating a
dual stage compressor.
Room thermostats for heat pumps should be installed; - -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; - -Emergency heat mode.
Start up with a night set back digital thermostat requires the technician to always; - -
Teach the customer how to program the thermostat.
The heat pump defrost board can be manipulated by the technician to; - -Simulate
the defrost cycle.
The air-to-air heat pump outdoor unit is most efficient if located; - -In a moderate
climate zone.
Which of the following are innovations that may be found on new high efficiency units? -
-ECM fan motors.
How may a lockout (impedance) relay be reset? - -Simply disconnect power to the
unit momentarily.
The temperature difference between the 1st and 2nd bulbs for heating on a heat pump
thermostat is; - -Approximately 2*F
Heat Pump ESCO Questions with Verified
Answers 2025
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 an - -Reversing valve
What is the difference between "demand defrost" and "timed defrost"? - -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 the; - -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 an auxiliary heat is known as the; - -Initial
balance point
At what temperature is an outdoor ambient thermostat normally set? - -Slightly
above the initial balance point.
The outdoor coil is frozen solid on a "no heat" service call. The most likely reason is; -
-The outdoor fan is inoperative.
In order to determine a heat pumps' balance point, you must first calculate; - -The
building's heat load.
When a heat pump is used for heating and cooling, the system is sized by the; - -
Cooling load.
, 2
A high efficiency heat pump system designed to function from high to low ambient
conditions below 10*F, may have? - -Two outdoor coils with each one incorporating a
dual stage compressor.
Room thermostats for heat pumps should be installed; - -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; - -Emergency heat mode.
Start up with a night set back digital thermostat requires the technician to always; - -
Teach the customer how to program the thermostat.
The heat pump defrost board can be manipulated by the technician to; - -Simulate
the defrost cycle.
The air-to-air heat pump outdoor unit is most efficient if located; - -In a moderate
climate zone.
Which of the following are innovations that may be found on new high efficiency units? -
-ECM fan motors.
How may a lockout (impedance) relay be reset? - -Simply disconnect power to the
unit momentarily.
The temperature difference between the 1st and 2nd bulbs for heating on a heat pump
thermostat is; - -Approximately 2*F
