Heat Pump Prep Test Questions and Answers (100% Pass)
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Course
ESCO
Institution
ESCO
Heat Pump Prep Test Questions and
Answers (100% Pass)
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 -
Answer️️ -Reversing Valve
What is the difference between "demand defrost" and "timed defrost?" ...
Heat Pump Prep Test Questions and
Answers (100% Pass)
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 -
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 - 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 auxiliary
heat is known as - Answer✔️✔️-initial balance point
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 pump's 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 10F, may have?
\ - Answer✔️✔️-an auxiliary heat exchanger injected with an ethylene glycol
solution
Room thermostats for heat pump 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
Start-up with a night set back digital thermostat requires the technician to
always - Answer✔️✔️-teach the customer how to program the thermostats
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
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