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Author Question: Why are two sets of contacts (one set normally open and one set normally closed) needed on an indoor ... (Read 90 times)

CharlieWard

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on: Jul 24, 2018
Why are two sets of contacts (one set normally open and one set normally closed) needed on an indoor fan
  relay?
 
  a. To allow high-speed operation in heating.
  b. To allow low-speed operation in cooling.
  c. To allow high-speed operation after a time delay.
  d. To ensure only one motor speed winding is energized at a time.

Question 2

Which of the following system piping issues is likely to result in a larger refrigerant charge?
 
  a. Buried refrigerant lines
  b. A long liquid line
  c. A short suction line
  d. An inoperable crankcase heater


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ntsoane kedibone

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

d

Answer to Question 2

b


CharlieWard

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Reply #2 on: Jul 24, 2018
TY


ntsoane kedibone

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Reply #3 on: Jul 24, 2018
You're welcome


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