According to ACR, The NADCA Standard, if when conducting a pre-cleaning inspection the Air Handling Unit (AHU) reveals suspect microbial growth, the ASCS shall:
A.
immediately put on a respirator and inform the occupants.
B.
stop the inspection and recommend a complete system cleaning.
C.
inspect the supply and return ducts as part of the inspection.
D.
close up the system to prevent any cross-contamination.
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Raja278787
3 months, 1 week ago