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Author Question: ECM motor speed is controlled by: A) The frequency and the number of poles. B) The voltage ... (Read 45 times)

123654777

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on: Jul 26, 2018
ECM motor speed is controlled by:
 
  A) The frequency and the number of poles.
  B) The voltage applied to the motor.
  C) Pulses of DC power sent by the control module to the windings.
  D) Which speed winding is connected.

Question 2

As the outdoor ambient temperature increases, the required superheat:
 
  A) Increases.
  B) Decreases.
  C) Stays the same.
  D) Outdoor ambient temperature does not affect superheat.


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bbburns21

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

C

Answer to Question 2

B


123654777

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Reply 2 on: Jul 26, 2018
Thanks for the timely response, appreciate it

dantucker

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Reply 3 on: Yesterday
Excellent

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