Routine Maintenance
80
CLCH-SVX010A-EN
Ultraviolet (UV) Light
Maintenance
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. Wearing soft cloth gloves and safety glasses, install
lamp by grasping each non-glass end with the thumb
and index fingers. Carefully push lamp ends into
previously mounted lamp clamps.
6. Attach the loom to the lamp by firmly pushing the four-
port connector onto the four pins on the lamp end.
Note:
Connection must be snug to avoid potential arcing.
Replacing the Bulbs
Ultraviolet bulbs should be replaced annually if operated
continuously or after 9,000 hours of use if operated
intermittently. Replacement bulbs must be the specific size
and wattage as originally supplied from the factory.
Note:
Although the lights may continue to generate a
characteristic blue glow beyond 9,000 operating
hours, the ultraviolet radiation emitted by the bulbs
degrades over time and will no longer provide the
intended benefit.
1.
Disconnect power to the HVAC unit and the ultraviolet
bulbs. SEE WARNING ABOVE.
2. Before installation, lamps should be cleaned using 99
percent isopropyl alcohol and a lint free cloth.
Note:
Note: If Teflon coated ' EncapsuLamp™ is used, it is
not necessary to clean the surface.
3. Wearing soft cloth gloves and safety glasses, install
lamp by grasping each non-glass end with the thumb
and index fingers. Carefully push lamp ends into
previously mounted lamp clamps.
4. Attach the loom to the lamp by firmly pushing the four-
port connector onto the four pins on the lamp end.
Note:
Connection must be snug to avoid potential arcing.
5. If broken bulbs are found or if you are required to
dispose of used bulbs, the proper warning and
cautions must be followed.
Disposal of Bulbs
UV bulbs, like fluorescent bulbs, contain mercury, which is
a regulated hazardous waste. The disposal requirements
for hazardous wastes are determined by local, state and
federal guidelines. Check all regulations before disposing
of bulbs to assure you have met all requirements.
Refer to the MSDS sheet from the bulb manufacturer for
additional disposal, handling and safety information.
After replacing bulbs, close and latch all unit panels and
reenergize power to the lights.
WARNING
Hazardous Voltage and Exposure to
Ultraviolet Radiation!
Failure to disconnect power before servicing could
result in burns or electrocution which could result in
death or serious injury. This product 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, and ensure UV lights are off before
servicing. Follow proper lockout/tagout procedures to
ensure the power can not be inadvertently energized.
WARNING
Hazardous Mercury Vapors!
If large numbers of UV bulbs are broken, an appropriate
respirator, as described in OSHA 1910.134, MUST be
worn to prevent inhalation of mercury vapors. Mercury
vapors are toxic and inhaling them could result in
poisoning and suffocation. Failure to follow this
recommendation could result in death or serious injury.
CAUTION
Broken Glass!
Bulbs are fragile and can be easily broken. To avoid
getting cut, always use cloth gloves and eye protection
when handling, cleaning or replacing these bulbs.
Bulbs may break if dropped or handled improperly.
Refer to the MSDS sheet from the bulb manufacturer
for additional safety information. Failure to handle
bulbs properly could result in minor to moderate injury.
