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NATE Heat Pump V2 Exam questions with correct answers What type of system uses a temperature and a pressure sensor to control the defrost cycle: - ANSW..a pressure-initiation-temperature-termination defrost system$17.99
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NATE Heat Pump V2 Exam questions with correct answers What type of system uses a temperature and a pressure sensor to control the defrost cycle: - ANSW..a pressure-initiation-temperature-termination defrost system
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Course
NATE Heat Pump
Institution
NATE Heat Pump
NATE Heat Pump V2 Exam questions with correct
answers
What type of system uses a temperature and a pressure
sensor to control the defrost cycle: - ANSW..a
pressure-initiation-temperature-termination defrost system
NATE Heat Pump V2 Exam questions with correct
answers
What type of system uses a temperature and a pressure
sensor to control the defrost cycle: - ✔✔ANSW✔✔..a
pressure-initiation-temperature-termination defrost system
A pressure switch, used on the defrost cycle of a heat
pump, commonly closes at a preset pressure difference of:
- ✔✔ANSW✔✔...5" to .65" WC
Temperature split refers to: - ✔✔ANSW✔✔..the
temperature difference between the air entering a coil and
the temperature of the coil
The outdoor ambient thermostat is commonly used to: -
✔✔ANSW✔✔..energize the auxiliary strip heaters during
the second stage of heating
A hold-back thermostat is used to: - ✔✔ANSW✔✔..keep
the system energized during a defrost cycle, when the
room thermostat is satisfied
, A discharge temperature thermostat is used: -
✔✔ANSW✔✔..on air-to-air heat pump systems that use
fossil fuel
When sizing a heat pump, it must initially be sized for: -
✔✔ANSW✔✔..the cooling load
When sizing for the auxiliary heat for a heat pump system,
the auxiliary heat must: - ✔✔ANSW✔✔..be capable of
handling the entire heat load of the structure
Auxiliary strip heaters are: - ✔✔ANSW✔✔..located at the
indoor unit downstream from the indoor coil
What controls the auxiliary strip heaters in a heat pump
system: - ✔✔ANSW✔✔..the second stage of a two-stage
thermostat
What is the purpose of the de-ice coil on an air-to-air heat
pump: - ✔✔ANSW✔✔..It prevents the formation of ice on
the lower section of the outdoor coil
The coefficient of performance (COP) is: -
✔✔ANSW✔✔..a heat pump's rating in the heating cycle,
comparing the heat output by the electrical input
When installing a heat pump system, the unit should
always be located as close to the indoor unit as possible
because: - ✔✔ANSW✔✔..during the heating cycle a
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