Air Systems Cleaning Specialist (ASCS) — Question 11

According to ACR, The NADCA Standard, properly performed HVAC system cleaning services should:

Answer options

• A. eliminate all contamination.
• B. restore the internal insulation to an “as new” condition.
• C. restore the evaporator coil to its original pressure drop.
• D. render the system visibly clean.

Correct answer: C

Explanation

The correct answer, C, is accurate because restoring the evaporator coil to its original pressure drop is a critical aspect of effective HVAC cleaning that ensures system efficiency. Options A and B are too absolute and not achievable goals, while option D, while important, does not encompass the technical performance required for a fully cleaned system.