HVAC Cleanliness Inspection Schedule

HVAC Cleanliness Inspection Schedule
HVAC systems should be routinely inspected for
cleanliness by visual means. Table 1 provides a
recommended inspection schedule for major HVAC
components within different building use classifications.
The inspection intervals specified in Table 1 are
minimum recommendations. The need for more frequent
cleanliness inspections is subject to numerous
environmental, mechanical and human factors.
Geographic regions with climates having higher
humidity, for example, will warrant HVAC system
inspections on a more frequent basis, due to the
increased potential for microbial amplification.
If the inspection of an HVAC unit’s air-handling
components reveals contamination, then supply and
return ductwork must be inspected during that same
inspection time rather than in accordance with the
intervals specified in Table 1