The correct answer is: Defrost water dose not drain
A correct statement from the coil.
regarding the outdoor coil
of a heat pump is that
damage may result if the:
The correct answer is: To the black and red leads of the
Using the diagram below, if transformer.
this unit is installed on 208
volts, the transformer
primary should be wired:
The correct answer is: Weight in the exact charge.
During the initial startup of
a heat pump with a long
line set, which of the
following is the most
accurate method to charge
the system?
The correct answer is: Indoor check valve is stuck
A technician has just open.
installed a heat pump. It
heats satisfactorily, but will
not cool. A possible cause
of this problem is the:
The correct answer is: Leaking reversing valve.
On a heat pump system
operating in the heating
mode, measurements
show a high suction
pressure at the
compressor. The most
likely explanation is a:
The correct answer is: High head pressure in the heat
A dirty air filter on a heat
pump system will result in: mode and low suction pressure in the cool mode.
The correct answer is: Low discharge pressure and
If the reversing valve were high suction pressure.
to stick in the halfway
position, which one of the
following would the service
gauges indicate?
, The correct answer is: Electric heating units.
Coefficient of Performance
(COP) is used primarily in
the heating/cooling field to
compare heat-pump
efficiencies to those of:
The correct answer is: Reversing valve leakage.
Temperature check at the
connections of the
reversing valve will
indicate:
The correct answer is: It will reduce BTU/H output of
the furnace.
An electric furnace has four
5-kw elements that are
rated at 240V. The
available voltage to operate
the furnace is 208V. Which
of the following indicates
the effect that this will have
on the BTU/H output of the
furnace?
The correct answer is: Between 14 and 15.
Using the diagram below, if
a heat pump compressor
fails and requires clean-up,
a section line filter-drier
should be temporarily
installed:
The correct answer is: 13 and 8
Using the diagram below
with the system operating
in the heating mode, only
high pressure superheated
vapor will be present
between which of the
following points?
A correct statement from the coil.
regarding the outdoor coil
of a heat pump is that
damage may result if the:
The correct answer is: To the black and red leads of the
Using the diagram below, if transformer.
this unit is installed on 208
volts, the transformer
primary should be wired:
The correct answer is: Weight in the exact charge.
During the initial startup of
a heat pump with a long
line set, which of the
following is the most
accurate method to charge
the system?
The correct answer is: Indoor check valve is stuck
A technician has just open.
installed a heat pump. It
heats satisfactorily, but will
not cool. A possible cause
of this problem is the:
The correct answer is: Leaking reversing valve.
On a heat pump system
operating in the heating
mode, measurements
show a high suction
pressure at the
compressor. The most
likely explanation is a:
The correct answer is: High head pressure in the heat
A dirty air filter on a heat
pump system will result in: mode and low suction pressure in the cool mode.
The correct answer is: Low discharge pressure and
If the reversing valve were high suction pressure.
to stick in the halfway
position, which one of the
following would the service
gauges indicate?
, The correct answer is: Electric heating units.
Coefficient of Performance
(COP) is used primarily in
the heating/cooling field to
compare heat-pump
efficiencies to those of:
The correct answer is: Reversing valve leakage.
Temperature check at the
connections of the
reversing valve will
indicate:
The correct answer is: It will reduce BTU/H output of
the furnace.
An electric furnace has four
5-kw elements that are
rated at 240V. The
available voltage to operate
the furnace is 208V. Which
of the following indicates
the effect that this will have
on the BTU/H output of the
furnace?
The correct answer is: Between 14 and 15.
Using the diagram below, if
a heat pump compressor
fails and requires clean-up,
a section line filter-drier
should be temporarily
installed:
The correct answer is: 13 and 8
Using the diagram below
with the system operating
in the heating mode, only
high pressure superheated
vapor will be present
between which of the
following points?
