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Author Question: When troubleshooting a heat pump room thermostat, a jumper placed across sub-base terminals R and Y ... (Read 136 times)

MirandaLo

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on: Jul 24, 2018
When troubleshooting a heat pump room thermostat, a jumper placed across sub-base terminals R and Y
  will energize the _____.
 
  a. reversing valve
  b. indoor fan relay
  c. compressor contactor
  d. electric heaters

Question 2

Charging a system by weight is performed when _____.
 
  a. a complete charge is needed
  b. only a partial charge is needed
  c. the system uses a fixed-orifice metering device
  d. the system uses a TXV for a metering device


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lou

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Reply #1 on: Jul 24, 2018
Answer to Question 1

c

Answer to Question 2

a


MirandaLo

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Reply 2 on: Jul 24, 2018
Wow, this really help

frankwu0507

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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