Page 4 IM-790
Maintenance
Bulb Replacement
Replace all bulbs every 12 months regardless of their
condition. Refer to the manufacturer
’s suggested replacement
interval.
NOTE: A glowing lamp indicates only that the UV light is
powered
, not that it is emitting the necessary UVC wavelength
for germicidal effect.
Disconnect power to the unit before servicing. Verify the
p
ower has been disconnected. Before opening the doors, use
the viewing window to make sure the UV lights are off.
Remove Lamp Units
Do not open modular UV Lamp units. There are no user
serviceable components inside.
1. Allow lamps to cool for 5 minutes before handling.
2. Unplug the power receptacle from the row of lamps by
pulling it apart from
the lamp unit and sliding the recepta-
cle off the rail.
3. Carefully slide the lamp units off the rail.
Use the slots in
the rail if
needed to help in removal.
Place the lamp unit
on a fla
t surface.
Figure 3. Removing Lamp Units - Step 1
Figure 4. Removing Lamp Units - Step 2
Figure 5. Removing Lamp Units - Step 3
Removing Bulbs
1. Allow bulbs to cool for 5 minutes before handling.
2. Grasp body of bulb firmly at each end.
3. Rotate bulb 90 degrees in either direction.
4. Remove bulb.
5. Reverse process to install replacement bulb.
6. Wipe down bulb with clean cloth and alcohol. Avoid
t
ouching bulb as fingerprints can degrade performance.
7. Dispose of removed bulbs in
accordance with local envi-
ronmental regulations.
Replacement Parts List
WARNING
Florescent bulbs contain mercury, which can cause
personal injury if breathed or ingested.
Use appropriate protective gear to clean up broken
bulbs.
WARNING
Personal Injury Hazard. Power supply can cause
electrical shock.
Always disconnect power to unit before servicing.
WARNING
UVC exposure is harmful to the skin and eyes.
Looking at an illuminated bulb can cause
permanent blindness. Skin exposure can cause
Cancer.
Verify the UV lights are off by using the view window.
Lamp
Unit
Power
Receptacle
Daikin PN Description
033696300 Power Disconnect Switch
205484001 18 in. Lamp Holder
205484101 24 in. Lamp Holder
205484201 36 in. Lamp Holder
205485501 Hard Wire Module
205484501 18 in. Lamp
205484601 24 in. Lamp
205484701 36 in. Lamp
Disconnect Power
Receptacle from
Lamp Unit
Pull Lamp
Unit Up and
Away from
Rail and
Remove
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