Esco Heat pump exam with correct answers
1. 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 (an); -
....🔰VERIFIED ANSWERS.... ✔✔C: reversing valve.
2. What is the difference between "demand defrost" and "timed defrost?" - ....🔰
VERIFIED ANSWERS.... ✔✔D: demand defrost only happens when needed,
and time defrost is on timed temperature
3. The thermostat that controls the auxiliary electric heat according to the
outdoor temperature is called the; - ....🔰VERIFIED ANSWERS.... ✔✔C:
outdoor ambient thermostat.
4. 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 the; - ....🔰VERIFIED ANSWERS.... ✔✔A: initial balance point.
5. At what temperature is an outdoor ambient thermostat normally set? - ....🔰
VERIFIED ANSWERS.... ✔✔B: At or slightly above the initial balance point.
6. The outdoor coil is frozen solid on a "no heat" service call. The most likely
reason is: - ....🔰VERIFIED ANSWERS.... ✔✔D: outdoor fan is inoperative
7. In order to determine a heat pumps' balance point, you must first calculate; -
....🔰VERIFIED ANSWERS.... ✔✔A: the building's heat load.
, 8. Heat pumps are sized to handle the; - ....🔰VERIFIED ANSWERS.... ✔✔A:
cooling load.
9. a high efficiency heat pump system designed to function from high or low
ambient conditions below 10F may have; - ....🔰VERIFIED ANSWERS....
✔✔C: auxiliary heat exchanger injected with a ethylene glycol solution.
10. Room thermostats for heat pumps should be installed; - ....🔰VERIFIED
ANSWERS.... ✔✔B: as near to the main return air grill as possible.
11. When the heat pump compressor has malfunetioned, the cus tomer has the
option to switch the system into; - ....🔰VERIFIED ANSWERS.... ✔✔B:
emergency heat mode.
12. Start-up with a night set back digital thermostat requires the technician to
always; - ....🔰VERIFIED ANSWERS.... ✔✔D: teach the customer to program
the thermostat.
13. The heat pump defrost board can be manipulated by the technician to;
- ....🔰VERIFIED ANSWERS.... ✔✔C: simulate the defrost cycle.
14. The air-to-air heat pump outdoor unit is most efficient if located; - ....🔰
VERIFIED ANSWERS.... ✔✔C: in a moderate climate zone.
15. Which of the following are innovations that may be found on new high
efficiency units? - ....🔰VERIFIED ANSWERS.... ✔✔D. ECM motors
1. 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 (an); -
....🔰VERIFIED ANSWERS.... ✔✔C: reversing valve.
2. What is the difference between "demand defrost" and "timed defrost?" - ....🔰
VERIFIED ANSWERS.... ✔✔D: demand defrost only happens when needed,
and time defrost is on timed temperature
3. The thermostat that controls the auxiliary electric heat according to the
outdoor temperature is called the; - ....🔰VERIFIED ANSWERS.... ✔✔C:
outdoor ambient thermostat.
4. 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 the; - ....🔰VERIFIED ANSWERS.... ✔✔A: initial balance point.
5. At what temperature is an outdoor ambient thermostat normally set? - ....🔰
VERIFIED ANSWERS.... ✔✔B: At or slightly above the initial balance point.
6. The outdoor coil is frozen solid on a "no heat" service call. The most likely
reason is: - ....🔰VERIFIED ANSWERS.... ✔✔D: outdoor fan is inoperative
7. In order to determine a heat pumps' balance point, you must first calculate; -
....🔰VERIFIED ANSWERS.... ✔✔A: the building's heat load.
, 8. Heat pumps are sized to handle the; - ....🔰VERIFIED ANSWERS.... ✔✔A:
cooling load.
9. a high efficiency heat pump system designed to function from high or low
ambient conditions below 10F may have; - ....🔰VERIFIED ANSWERS....
✔✔C: auxiliary heat exchanger injected with a ethylene glycol solution.
10. Room thermostats for heat pumps should be installed; - ....🔰VERIFIED
ANSWERS.... ✔✔B: as near to the main return air grill as possible.
11. When the heat pump compressor has malfunetioned, the cus tomer has the
option to switch the system into; - ....🔰VERIFIED ANSWERS.... ✔✔B:
emergency heat mode.
12. Start-up with a night set back digital thermostat requires the technician to
always; - ....🔰VERIFIED ANSWERS.... ✔✔D: teach the customer to program
the thermostat.
13. The heat pump defrost board can be manipulated by the technician to;
- ....🔰VERIFIED ANSWERS.... ✔✔C: simulate the defrost cycle.
14. The air-to-air heat pump outdoor unit is most efficient if located; - ....🔰
VERIFIED ANSWERS.... ✔✔C: in a moderate climate zone.
15. Which of the following are innovations that may be found on new high
efficiency units? - ....🔰VERIFIED ANSWERS.... ✔✔D. ECM motors
