92
CLCH-SVX03C-EN
Routine Maintenance
To clean a porous insulating surface (fiberglass insulation):
1.
Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective equipment, use a vacuum device with a HEPA filter
(99.97 percent efficient at 0.3 micron particles) to remove the accumulated dirt and organic
matter.
Note:
Be careful not to tear the insulation surface or edges.
3. Confirm the drain line is open following the cleaning process.
4. Allow the unit to dry thoroughly before putting it back into service.
5. Replace all panels and parts and restore electrical power to the unit.
6. Be careful any contaminated material does not contact other areas of the unit or building.
Properly dispose of all contaminated materials and cleaning solution.
Ultraviolet (UV) Light Maintenance
WARNING
Hazardous Voltage and Exposure to Ultraviolet Radiation!
If UV lights are present in this unit, it contains components that emit high-intensity ultraviolet
(UV-C) radiation which can be harmful to unprotected eyes and skin. Disconnect all electrical
power, including remote disconnects before servicing. Follow proper lockout/tagout procedures
to ensure the equipment cannot be inadvertently energized. Failure to disconnect power before
servicing could result in death or serious injury.
The intensity of the ultraviolet energy emitted from the ultraviolet bulbs is dependent on the
cleanliness and age of the bulb. The surface of the bulb should be kept as clean as possible for
optimum intensity. Depending on the filtration level of the HVAC system and the general hygiene
of the building, periodic cleaning may be necessary. Before attempting any maintenance
procedures, always follow all warnings and cautions as detailed in this maintenance section.
Cleaning the Bulbs
Note:
If bulbs are found to be broken, see the proper warning and cautions below regarding
broken bulbs and hazardous vapors.
1.
Disconnect all electrical power to the unit and the ultraviolet bulbs.
2. Wearing soft cloth gloves and safety glasses, use two hands and firmly grasp the bulb at each
end.
3. Rotate the bulb 90 degrees in either direction and move bulb away from the fixture and out of
unit.
4. Wipe down each bulb with a clean cloth and alcohol. Avoid touching the bulb with bare hands
as skin oils can accelerate future glass soiling and degrade the bulb performance.
5. Carefully return the bulb to the fixture and rotate it 90 degrees in either direction until it is firmly
secured.
6. Close and latch all unit panels and reenergize power to the lights.
