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Author Question: Explain why a control transformer is required in some air-conditioning systems. What will be an ... (Read 17 times)

vHAUNG6011

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on: Jul 26, 2018
Explain why a control transformer is required in some air-conditioning systems.
 
  What will be an ideal response?

Question 2

Three common methods of controlling evaporator temperature are:
 
  A) Conventional thermostat, a suction pressure cut-out control, or an evaporator pressure regulator.
  B) Evaporator pressure regulator, crankcase pressure regulator, and compressor speed control.
  C) Compressor speed control, electric strip reheat, and hot gas bypass.
  D) High-pressure cutout, crankcase pressure regulator, and conventional thermostat.


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Jadwiga9

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Reply #1 on: Jul 26, 2018
Answer to Question 1

The control transformer drops 220 V to 24 V that can be used in the room thermostat. The room thermostat and control system of the air conditioner uses 24 V to lessen the possibility of electrical shock.

Answer to Question 2

A


vHAUNG6011

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Reply #2 on: Jul 26, 2018
TY


Jadwiga9

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Reply #3 on: Jul 26, 2018
You're welcome


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