Air Systems Cleaning Specialist (ASCS) — Question 16

During a water damage restoration, the Institute of Inspection Cleaning and Restoration Certification (IICRC) Standard S500 states HVAC systems should

Answer options

• A. not be cleaned
• B. Be operated in “fan on” mode
• C. not be used for dehumidification
• D. be used for dehumidification

Correct answer: D

Explanation

The correct answer is D because the IICRC Standard S500 recommends using HVAC systems for dehumidification to help control moisture levels during water damage restoration. Options A and C are incorrect as they suggest that the HVAC systems should not be used or cleaned, which contradicts the guidelines for effective restoration. Option B, while a useful operation mode, does not address the need for dehumidification.