Heat Pump ESCO 2025/2026 Exam
Questions Marking Scheme New Update
| A+ Rated
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 -
🧠 ANSWER ✔✔Reversing valve
What is the difference between "demand defrost" and "timed defrost"? - 🧠
ANSWER ✔✔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; - 🧠 ANSWER ✔✔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; - 🧠 ANSWER ✔✔Initial balance point
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
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PRIVACY STATEMENT. ALL RIGHTS RESERVED
,At what temperature is an outdoor ambient thermostat normally set? - 🧠
ANSWER ✔✔Slightly above the initial balance point.
The outdoor coil is frozen solid on a "no heat" service call. The most likely
reason is; - 🧠 ANSWER ✔✔The outdoor fan is inoperative.
In order to determine a heat pumps' balance point, you must first calculate;
- 🧠 ANSWER ✔✔The building's heat load.
When a heat pump is used for heating and cooling, the system is sized by
the; - 🧠 ANSWER ✔✔Cooling load.
A high efficiency heat pump system designed to function from high to low
ambient conditions below 10*F, may have? - 🧠 ANSWER ✔✔Two outdoor
coils with each one incorporating a dual stage compressor.
Room thermostats for heat pumps should be installed; - 🧠 ANSWER ✔✔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; - 🧠 ANSWER ✔✔Emergency heat mode.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
2
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Start up with a night set back digital thermostat requires the technician to
always; - 🧠 ANSWER ✔✔Teach the customer how to program the
thermostat.
The heat pump defrost board can be manipulated by the technician to; - 🧠
ANSWER ✔✔Simulate the defrost cycle.
The air-to-air heat pump outdoor unit is most efficient if located; - 🧠
ANSWER ✔✔In a moderate climate zone.
Which of the following are innovations that may be found on new high
efficiency units? - 🧠 ANSWER ✔✔ECM fan motors.
How may a lockout (impedance) relay be reset? - 🧠 ANSWER ✔✔Simply
disconnect power to the unit momentarily.
The temperature difference between the 1st and 2nd bulbs for heating on a
heat pump thermostat is; - 🧠 ANSWER ✔✔Approximately 2*F
SEER is calculated by; - 🧠 ANSWER ✔✔Dividing the Btu's removed by the
watts consumed during the cooling season.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
3
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions Marking Scheme New Update
| A+ Rated
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 -
🧠 ANSWER ✔✔Reversing valve
What is the difference between "demand defrost" and "timed defrost"? - 🧠
ANSWER ✔✔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; - 🧠 ANSWER ✔✔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; - 🧠 ANSWER ✔✔Initial balance point
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
1
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,At what temperature is an outdoor ambient thermostat normally set? - 🧠
ANSWER ✔✔Slightly above the initial balance point.
The outdoor coil is frozen solid on a "no heat" service call. The most likely
reason is; - 🧠 ANSWER ✔✔The outdoor fan is inoperative.
In order to determine a heat pumps' balance point, you must first calculate;
- 🧠 ANSWER ✔✔The building's heat load.
When a heat pump is used for heating and cooling, the system is sized by
the; - 🧠 ANSWER ✔✔Cooling load.
A high efficiency heat pump system designed to function from high to low
ambient conditions below 10*F, may have? - 🧠 ANSWER ✔✔Two outdoor
coils with each one incorporating a dual stage compressor.
Room thermostats for heat pumps should be installed; - 🧠 ANSWER ✔✔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; - 🧠 ANSWER ✔✔Emergency heat mode.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
2
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Start up with a night set back digital thermostat requires the technician to
always; - 🧠 ANSWER ✔✔Teach the customer how to program the
thermostat.
The heat pump defrost board can be manipulated by the technician to; - 🧠
ANSWER ✔✔Simulate the defrost cycle.
The air-to-air heat pump outdoor unit is most efficient if located; - 🧠
ANSWER ✔✔In a moderate climate zone.
Which of the following are innovations that may be found on new high
efficiency units? - 🧠 ANSWER ✔✔ECM fan motors.
How may a lockout (impedance) relay be reset? - 🧠 ANSWER ✔✔Simply
disconnect power to the unit momentarily.
The temperature difference between the 1st and 2nd bulbs for heating on a
heat pump thermostat is; - 🧠 ANSWER ✔✔Approximately 2*F
SEER is calculated by; - 🧠 ANSWER ✔✔Dividing the Btu's removed by the
watts consumed during the cooling season.
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
3
PRIVACY STATEMENT. ALL RIGHTS RESERVED
