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Author Question: Explain the basic operation of the automatic expansion valve. What will be an ideal ... (Read 50 times)

JGIBBSON

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on: Jul 26, 2018
Explain the basic operation of the automatic expansion valve.
 
  What will be an ideal response?

Question 2

Why are all aspects of the power wiring circuit so important when installing electric furnaces?
 
  What will be an ideal response?


LegendaryAnswers

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

The automatic expansion valve is a refrigerant pressure regulator. It is controlled by a diaphragm that balances the evaporator pressure against an adjustable spring pressure.

Answer to Question 2

The high current draw of electric furnaces generates heat at the point of a bad connection and degrades the connections and the wires.


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