1 | Page
Heat Pump ESCO Questions and Correct
Answers/ Latest Update / Already
Graded
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
Ans: Reversing valve
What is the difference between "demand defrost" and "timed
defrost"?
Ans: 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;
Ans: Outdoor ambient thermostat
,2 | Page
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;
Ans: Initial balance point
At what temperature is an outdoor ambient thermostat normally set?
Ans: Slightly above the initial balance point.
The outdoor coil is frozen solid on a "no heat" service call. The most
likely reason is;
Ans: The outdoor fan is inoperative.
In order to determine a heat pumps' balance point, you must first
calculate;
Ans: The building's heat load.
, 3 | Page
When a heat pump is used for heating and cooling, the system is
sized by the;
Ans: Cooling load.
A high efficiency heat pump system designed to function from high
to low ambient conditions below 10*F, may have?
Ans: Two outdoor coils with each one incorporating a dual stage
compressor.
Room thermostats for heat pumps should be installed;
Ans: 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;
Ans: Emergency heat mode.
Heat Pump ESCO Questions and Correct
Answers/ Latest Update / Already
Graded
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
Ans: Reversing valve
What is the difference between "demand defrost" and "timed
defrost"?
Ans: 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;
Ans: Outdoor ambient thermostat
,2 | Page
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;
Ans: Initial balance point
At what temperature is an outdoor ambient thermostat normally set?
Ans: Slightly above the initial balance point.
The outdoor coil is frozen solid on a "no heat" service call. The most
likely reason is;
Ans: The outdoor fan is inoperative.
In order to determine a heat pumps' balance point, you must first
calculate;
Ans: The building's heat load.
, 3 | Page
When a heat pump is used for heating and cooling, the system is
sized by the;
Ans: Cooling load.
A high efficiency heat pump system designed to function from high
to low ambient conditions below 10*F, may have?
Ans: Two outdoor coils with each one incorporating a dual stage
compressor.
Room thermostats for heat pumps should be installed;
Ans: 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;
Ans: Emergency heat mode.
