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Author Question: Of the four phases listed, which one is performed before the others? A) Electrical connection B) ... (Read 61 times)

melly21297

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on: Jul 24, 2018
Of the four phases listed, which one is performed before the others?
 
  A) Electrical connection B) Piping installation
  C) Evacuation and charging D) Start and check

Question 2

On heat recovery systems:
 
  A) One indoor unit can be in heating mode while others are in cooling mode at the same time.
  B) It is required that all indoor units be in heating mode.
  C) It is required that all indoor units be in cooling mode.
  D) Both A and B.


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cascooper22

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

B

Answer to Question 2

A


melly21297

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Reply 2 on: Jul 24, 2018
Excellent

hollysheppard095

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Reply 3 on: Yesterday
:D TYSM

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