Maintenance
AHPCO
®
Cell Replacement Process
The entire Cell should be replaced every two years. Failure to replace the Cell
will decrease the effectiveness of the unit. After two years of use the blue Lamp
Replacement light will begin to blink as a reminder that it’s time to replace the AH-
PCO
®
Cell.
Note: UV lamps contain Hg (Mercury) and should be disposed of according to dis-
posal laws. Find disposal centers at www.earth911.org.
We recommend contacting a licensed HVAC professional to perform the replace-
ment process.
1. Unplug the NIND from its power source.
2. Remove the four screws securing the Ballast
Assembly and pull the Ballast Assembly away
from the Retainer Ring until the four pins have
completely disconnected from the Ballast As-
sembly.
3. Remove the four screws securing the AHPCO
®
Cell and pull the AHPCO
®
Cell out from the Re-
tainer Ring. Properly dispose of the AHPCO
®
Cell.
4. Insert the new AHPCO
®
Cell and secure with
four 1/4” hex head screws. Do not overtighten the screws.
5. Using a small cylindrical object, such as a pen, press
and hold the Lamp Reset Button for 3 seconds. This will
reset the Lamp Replacement Indicator. The Lamp Reset
Button is located on the bottom of the Ballast Assembly.
6. Press the Ballast Assembly onto the four pins protruding from the AH-
PCO
®
Cell. The Ballast Assembly should be orientated with the “air
flow” label running parallel with the length of the duct to ensure the four
pins are in line with the Four Pin Connector. Optional mounting con-
figurations, such as opening the UV shields, may vary the orientation
of the “air flow” label. It’s only intended to serve as a general guideline.
7. Using a 1/4” hex head screw driver, secure the NIND with four self tap-
ping 3/4” screws being careful not to overtighten stripping the screw holes.
8
Lamp Reset Switch
