84
CLCH-SVX03C-EN
Routine Maintenance
Drain Pans
WARNING
Hazardous Chemicals!
Cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper
handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as
required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data
Sheet and follow all recommended safe handling practices. Failure to follow all safety
instructions could result in death or serious injury.
WARNING
No Step Surface!
Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting
metal to collapse. Failure of the drain pan could result in death or serious injury.
The condensate drain pan and drain line must be checked to assure the condensate drains as
designed. This inspection should occur a minimum of every six months or more often as dictated
by operating experience.
If evidence of standing water or condensate overflow exists, identify and remedy the cause
immediately. Refer to the
“Troubleshooting” section on page 94
for possible causes and solutions.
To clean drain pans:
1.
Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective equipment, remove any standing water.
3. Scrape solid matter off of the drain pan.
4. Vacuum the drain pan with a vacuum device that uses high-efficiency particulate arrestance
(HEPA) filters with a minimum efficiency of 99.97 percent at 0.3 micron particle size.
5. Thoroughly clean any contaminated area(s) with a mild bleach and water solution or an EPA-
approved sanitizer specifically designed for HVAC use.
6. Immediately rinse the affected surfaces thoroughly with fresh water and a fresh sponge to
prevent potential corrosion of metal surfaces.
7.
Allow the unit to dry completely before putting it back into service.
8. Be careful any contaminated material does not contact other areas of the unit or building.
Properly dispose of all contaminated materials and cleaning solution.