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Author Question: What should be done when checking the refrigerant charge of an operating packaged unit? a. Allow ... (Read 199 times)

BRWH

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on: Jul 24, 2018
What should be done when checking the refrigerant charge of an operating packaged unit?
 
  a. Allow time for the operation of the unit to stabilize.
  b. Put the unit in economizer mode.
  c. Open all outdoor air dampers and close the return air dampers.
  d. Remove the supply air fan access panel.

Question 2

A pulsating sound coming from an oil furnace indicates ____
 
  a. the flame is touching the combustion chamber
  b. a defective blower
  c. under-firing
  d. soot buildup on the heat exchanger


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paavo

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

a

Answer to Question 2

a


BRWH

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Reply 2 on: Jul 24, 2018
Excellent

AngeliqueG

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Reply 3 on: Yesterday
Gracias!

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