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Heat Pumps Exam Study Guide with Complete Solutions

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Heat Pumps Exam Study Guide with Complete Solutions reversing valve - Answer️️ -an air to air pump has many of the same components as an air conditioning system. the major difference is that a heat pump has a demand defrost happens only when when needed and timed defrost is based on timed...

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  • August 27, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • ESCO
  • ESCO
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SophiaBennett
©SOPHIABENNETT@2024-2025 Monday, August 19, 2024 12:35 AM

Heat Pumps Exam Study Guide with
Complete Solutions

reversing valve - Answer✔️✔️-an air to air pump has many of the same
components as an air conditioning system. the major difference is that a
heat pump has 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

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,©SOPHIABENNETT@2024-2025 Monday, August 19, 2024 12:35 AM

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



Page 2 of 19

, ©SOPHIABENNETT@2024-2025 Monday, August 19, 2024 12:35 AM

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

Airflow CFM is within normal range - Answer✔️✔️-You are checking for
proper airflow in CFM on a three ton heat pump system,.....one return grill
measuring 24"×24" ...which has a net free area of 3.4square ft....you could
measure air velocity and calculate an average of 400FPM.....from this info
you can

Second heating stage of indoor tstat - Answer✔️✔️-What control operates1st
stage of secondary heat

A max of 10 minutes - Answer✔️✔️-What is the industry standard for max
duration of defrost




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