WARNING:
Never expose eyes or skin to UVC light from any source. Looking directly at the UVC light may cause permanent eye damage
or blindness.Never operate the UV-Aire
™
Air Purifying System out of the plenum. Avoid touching the glass portion of the lamp with your hands.
Page 9 of 12
P/N 46648100 09/18 Rev J
HONEYCOMB AND CARBON REPLACEMENT
If there is a need to replace the Pro-Cell honeycomb or carbon media, the subsequent procedure should be
followed.
WARNING:
WARNING:
Make sure power is disconnected from the unit before removing the unit.
Note: Wear disposable non-absorbent protective gloves prior to replacement procedure in case of accidental
breakage of glass.
1. Disconnect the Duo Model from any power source. Look through the round sight glass hole and verify the
UV lamp is off before removing the unit from the duct or Ductboard Adaptor Plate. There should be no
blue glow along the length.
2. Detach the unit from the duct or Ductboard Adaptor Plate by removing the four sheet metal screws. Save
the sheet metal screws for reattaching the unit.
3. Carefully remove ballast with attached lamp by rotating ¼ turn to the left. Carefully set aside somewhere
where the lamp will not break or touch any surface. Be careful not to break the lamp nor touch it with
hands.
4. Unscrew the end bracket by removing the hex screws, See Figure 12. Save the hex screws for reattaching
the end bracket. The end bracket is located on the opposite side of the Model than the power source.
5. With the end bracket taken off, the Pro-Cell honeycomb and carbon media can be slid out of the opening
in the back of the unit, see Figure 13. The honeycomb panel and the carbon media insert must be removed
together even if only one needs replacing.
6. Replace any removed pieces of either Pro-Cell honeycomb or carbon media with the specifi ed replacement
parts only. When sliding the replacement pieces back into the unit, check and make sure the Pro-Cell
honeycomb is placed on the inside while the carbon media is touching the outside side panel.
7. Once the replacements are slid all the way into the opening, attach the end bracket with previously
removed hex screws.
8. Carefully insert the lamp through the center of the white plastic mounting base, align the ballast with the
power cord pointing 90 degrees to the right of the round sight glass, and engage the ballast onto the
base by rotating the ballast ¼ turn to the right (see fi gures 4, 5 and 6). Note: the safety switch actuating fi nger
that protrudes from the mounting base must engage into the slot in the inside of the ballast. The slot is
visible above the ballast socket in Figure 4.
9. Insert Duo unit back into duct opening and attach to duct or Ductboard Adaptor plate using the four sheet
metal screws that were previously removed. The V shape of the Duo unit should face into the panel, see
Figure 2.
10. For the 24V units, reconnect the unit to the provided 24V transformer terminals.
11. For the 24V model, restore power to the circuit providing power to the 24V transformer provided.
12. For 120V models, plug the cord into the 120V electrical outlet.
13. Look through the round sight glass hole and verify the UV lamp is lit. There should be a blue glow along
the length. If the lamp is not lit, follow the Troubleshooting guide.
