ESCO HEAT PUMP FINAL PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉demand defrost happens only when when needed and timed defrost is
based on timed /temp . Answer: what is the difference btw demand
defrost and timed defrost
◉Outdoor ambient tstat . Answer: The tstat controls the auxiliary
electric heat according to the outdoor temp
◉Initial balance point . Answer: The outdoor temp 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 the
◉Slightly above the initial balance point . Answer: At what temp is an
outdoor ambient tstat normally set
◉The outdoor fan is inoperative . Answer: The outdoor coil is frozen
solid on a no heat service call....most likely reason is
◉The buildings heating load . Answer: In order to determine a heat
pump balance point,you must first calculate
,◉Cooling load . Answer: Heat pump are sized to handle the
◉Depends on the mode of operation . Answer: On a heat pump,which
coil is considered the evaporator
◉As near to the main return air grill as possible . Answer: Room tstats
for heat pumps should be i stalled
◉Emergency heat mode . Answer: When the heat pump compressor
has malfunctioned,the customer has the option to switch the system into
◉Teach customer to program the tstat . Answer: Start up with a night
setback digital tstat require tech to always
◉Simulate defrost cycle . Answer: The heat pump defrost board can be
manipulated by the tech to
◉In a cold climate . Answer: The air to air heat pump outdoor unit is
most efficient if located
◉ECM fan motor . Answer: of the following are innovations that may
be found on new high efficiency units
, ◉Simply disconnect power to the unit momentarily . Answer: How
may a lockout(impedance)relay be reset
◉Approximately 2°F . Answer: The TD btw 1st and 2nd bulbs for
heating on a heat pump tstat is
◉Dividing the btus removed by watts consumed during cooling season .
Answer: SEER is calculated by
◉The system will not properly remove humidity from the conditioned
space . Answer: If the indoor fan is operating at excessive speed in
cooling mode
◉Maintain 500 microns for 15 minutes . Answer: What is the industry
standard for a deep vacuum
◉By weight . Answer: Most prefered method of charging any system
in the field is
◉Use heat paste and wet rags while brazing the new valve . Answer:
Good service practice for installation of a reversing valve includes
◉A duel run capacitor,which allows a small amount of current to flow
through the windings . Answer: Off cycle crankcase heat is provided by
QUESTIONS WITH ANSWERS GRADED A+
◉demand defrost happens only when when needed and timed defrost is
based on timed /temp . Answer: what is the difference btw demand
defrost and timed defrost
◉Outdoor ambient tstat . Answer: The tstat controls the auxiliary
electric heat according to the outdoor temp
◉Initial balance point . Answer: The outdoor temp 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 the
◉Slightly above the initial balance point . Answer: At what temp is an
outdoor ambient tstat normally set
◉The outdoor fan is inoperative . Answer: The outdoor coil is frozen
solid on a no heat service call....most likely reason is
◉The buildings heating load . Answer: In order to determine a heat
pump balance point,you must first calculate
,◉Cooling load . Answer: Heat pump are sized to handle the
◉Depends on the mode of operation . Answer: On a heat pump,which
coil is considered the evaporator
◉As near to the main return air grill as possible . Answer: Room tstats
for heat pumps should be i stalled
◉Emergency heat mode . Answer: When the heat pump compressor
has malfunctioned,the customer has the option to switch the system into
◉Teach customer to program the tstat . Answer: Start up with a night
setback digital tstat require tech to always
◉Simulate defrost cycle . Answer: The heat pump defrost board can be
manipulated by the tech to
◉In a cold climate . Answer: The air to air heat pump outdoor unit is
most efficient if located
◉ECM fan motor . Answer: of the following are innovations that may
be found on new high efficiency units
, ◉Simply disconnect power to the unit momentarily . Answer: How
may a lockout(impedance)relay be reset
◉Approximately 2°F . Answer: The TD btw 1st and 2nd bulbs for
heating on a heat pump tstat is
◉Dividing the btus removed by watts consumed during cooling season .
Answer: SEER is calculated by
◉The system will not properly remove humidity from the conditioned
space . Answer: If the indoor fan is operating at excessive speed in
cooling mode
◉Maintain 500 microns for 15 minutes . Answer: What is the industry
standard for a deep vacuum
◉By weight . Answer: Most prefered method of charging any system
in the field is
◉Use heat paste and wet rags while brazing the new valve . Answer:
Good service practice for installation of a reversing valve includes
◉A duel run capacitor,which allows a small amount of current to flow
through the windings . Answer: Off cycle crankcase heat is provided by
