Author Question: The air filter should be installed with the directional arrow A) facing towards the unit B) ... (Read 62 times)

plus1

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The air filter should be installed with the directional arrow
 
  A) facing towards the unit B) facing to the left of the filter access
  C) facing towards the return air duct D) facing to the right of the filter access

Question 2

Select the gasses that are safe to use for refrigeration system pressure testing.
 
  A) Oxygen B) Carbon dioxide C) Nitrogen D) Acetylene



sarah_brady415

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Answer to Question 1

A

Answer to Question 2

B, C



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