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Eminoa Eminoa
wrote...
Posts: 491
Rep: 1 0
6 years ago
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.

 Q. 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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Replies
wrote...
6 years ago
Ans. to #1

C

Ans. to #2

B
Eminoa Author
wrote...
6 years ago
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