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124 UNT-IOM-6
4. Rinse the affected surfaces thoroughly with fresh water and a fresh
sponge to prevent potential corrosion of the drain pan and drain line.
5. Ensure the drain line remains open following the cleaning process.
6. Replace all panels and parts and restore electrical power to the
unit.
7. Allow the unit to dry completely before putting it back into service.
8. Do not allow any contaminated material to contact other areas of
the unit or building. Properly dispose of all contaminated materials
and cleaning solution.
Inspect the fan at least every six months or more frequently if operat-
ing experience dictates. Clean accumulated dirt and organic matter
on the interior fan surface immediately.
The Trane Company recommends the following procedure for cleaning
fan surfaces:
1. Disconnect all electrical power to the unit.
2. Don the appropriate personal protective equipment (PPE).
3. Use a portable vacuum with HEPA filtration to remove loose dirt
and organic matter. The filter should be 99.97% efficient at 0.3 micron
particle size.
4. If no microbial growth (mold) exists, thoroughly clean the fan and
associated components with an industrial cleaning solution. Carefully
follow the cleaning solution manufacturers instructions regarding
personal protection and ventilation when using their product.
5. If microbial growth (mold) is present, remove the contamination
(Step 2) and thoroughly clean the affected area with an EPA-approved
sanitizer specifically designed for HVAC use. Carefully follow the
sanitizer manufacturers instructions regarding the use of the product.
6. Rinse the affected surfaces thoroughly with fresh water and a fresh
sponge to prevent potential corrosion of metal surfaces.
Inspecting and
Cleaning the Fan