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ASCS Exam - Question 32


When is it appropriate to verify the effectiveness of HVAC system cleaning?

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Correct Answer: B

The appropriate time to verify the effectiveness of HVAC system cleaning is after the system is cleaned, and before the system is restarted. This allows for inspection to ensure that all contaminants have been adequately removed before the HVAC system is put back into operation. Restarting the system can redistribute any remaining contaminants, making it harder to assess the effectiveness of the cleaning process.

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Boody123Option: C
Jun 14, 2023

Shouldn't the answer be C to test the effectiveness of the cleaning after restarting

ojhsupreme
Dec 28, 2023

NADCA ACR Section 5.1 states, "Perform cleanliness verification immediately after HVAC system component cleaning and prior to system operation."