Esco Heat pump exam
1. An air-to-air heat pump has many of the same C: reversing valve.
components as an air conditioning system. The major
difference is that a heat pump also has a (an);
2. What is the difference between "demand defrost" D: demand defrost only happens when needed, and time defrost is on timed
and "timed defrost?" temperature
3. The thermostat that controls the auxiliary electric C: outdoor ambient thermostat.
heat according to the outdoor temperature is called
the;
4. The outdoor temperature at which the heat pump A: initial balance point.
provides the same amount of heat as the heat loss of
the conditioned space without auxiliary heat is known
as the;
5. At what temperature is an outdoor ambient B: At or slightly above the initial balance point.
thermostat normally set?
2/4/2026
, Esco Heat pump exam
6. The outdoor coil is frozen solid on a "no heat" D: outdoor fan is inoperative
service call. The most likely reason is:
7. In order to determine a heat pumps' balance point, A: the building's heat load.
you must first calculate;
8. Heat pumps are sized to handle the; A: cooling load.
9. a high efficiency heat pump system designed to C: auxiliary heat exchanger injected with a ethylene glycol solution.
function from high or low ambient conditions below
10F may have;
10. Room thermostats for heat pumps should be B: as near to the main return air grill as possible.
installed;
11. When the heat pump compressor has B: emergency heat mode.
malfunetioned, the cus tomer has the option to switch
the system into;
2/4/2026
, Esco Heat pump exam
12. Start-up with a night set back digital thermostat D: teach the customer to program the thermostat.
requires the technician to always;
13. The heat pump defrost board can be manipulated C: simulate the defrost cycle.
by the technician to;
14. The air-to-air heat pump outdoor unit is most C: in a moderate climate zone.
efficient if located;
15. Which of the following are innovations that may be D. ECM motors
found on new high efficiency units?
16. How may a lockout (impedance) relay be reset? C: Simply disconnect power to the unit momentarily.
17. The temperature difference between the 1t and 2od C: approximately 2°F
bulbs for heating on a heat pump thermostat is;
18. SEER calculated by: B. BTUs removed by the watts consumed during the cooling season
2/4/2026
1. An air-to-air heat pump has many of the same C: reversing valve.
components as an air conditioning system. The major
difference is that a heat pump also has a (an);
2. What is the difference between "demand defrost" D: demand defrost only happens when needed, and time defrost is on timed
and "timed defrost?" temperature
3. The thermostat that controls the auxiliary electric C: outdoor ambient thermostat.
heat according to the outdoor temperature is called
the;
4. The outdoor temperature at which the heat pump A: initial balance point.
provides the same amount of heat as the heat loss of
the conditioned space without auxiliary heat is known
as the;
5. At what temperature is an outdoor ambient B: At or slightly above the initial balance point.
thermostat normally set?
2/4/2026
, Esco Heat pump exam
6. The outdoor coil is frozen solid on a "no heat" D: outdoor fan is inoperative
service call. The most likely reason is:
7. In order to determine a heat pumps' balance point, A: the building's heat load.
you must first calculate;
8. Heat pumps are sized to handle the; A: cooling load.
9. a high efficiency heat pump system designed to C: auxiliary heat exchanger injected with a ethylene glycol solution.
function from high or low ambient conditions below
10F may have;
10. Room thermostats for heat pumps should be B: as near to the main return air grill as possible.
installed;
11. When the heat pump compressor has B: emergency heat mode.
malfunetioned, the cus tomer has the option to switch
the system into;
2/4/2026
, Esco Heat pump exam
12. Start-up with a night set back digital thermostat D: teach the customer to program the thermostat.
requires the technician to always;
13. The heat pump defrost board can be manipulated C: simulate the defrost cycle.
by the technician to;
14. The air-to-air heat pump outdoor unit is most C: in a moderate climate zone.
efficient if located;
15. Which of the following are innovations that may be D. ECM motors
found on new high efficiency units?
16. How may a lockout (impedance) relay be reset? C: Simply disconnect power to the unit momentarily.
17. The temperature difference between the 1t and 2od C: approximately 2°F
bulbs for heating on a heat pump thermostat is;
18. SEER calculated by: B. BTUs removed by the watts consumed during the cooling season
2/4/2026
