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Author Question: What is the difference between internally and externally equalized thermostatic expansion valves? ... (Read 88 times)

theo

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on: Jul 26, 2018
What is the difference between internally and externally equalized thermostatic expansion valves?
 
  What will be an ideal response?

Question 2

An electric furnace has a minimum circuit ampacity rating of 50 amps. What is the minimum current rating for the disconnect switch?
 
  What will be an ideal response?


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Jossy

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

Internally equalized valves obtain the evaporator pressure through a passageway inside the valve. Externally equalized valves obtain evaporator pressure through a separate line that runs from the valve to the suction line.

Answer to Question 2

50 amps x 1.15 = 57.5amps


theo

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Reply #2 on: Jul 26, 2018
Thanks


Jossy

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Reply #3 on: Jul 26, 2018
Welcome :)


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