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INSTALLATION PROCEDURES
Unpacking
Carefully remove the parts from the package. The lamps are fragile
and proper care must be taken when removing the packaging that
is placed around them.
Do not touch the lamps with your bare hands, as oils
WARNING:
from your hands create "hot spots," which reduce the
lamp life. In case of contact with the lamp, wipe the
lamp clean with a soft cloth dampened with rubbing
alcohol.
Make sure all components are in the box before the installation
process. In addition to this manual, you should have the following
parts:
• ComAir 20T unit
• (1) Ozone lamp
• (1) Germicidal lamp
• (1) Lamp shield
• (1) Airflow sensor PC
• (4) Self-tapping screws
• (1) Installation template
• (1) Power cord
Assembling the ComAir 20T
Remove the screws from the cover of the unit and open the cover.
1. See figure 2 for locations of components. Install lamp shield
by using the hardware that is attached to the main unit. Attach
the shield to the main unit and tighten the two nuts.
2. Install the ozone lamp.
a. Loosen the lamp lock nut from the lamp holder by turning it
counterclockwise and remove.
b. Remove the metal washer and the rubber bushing from
the lamp holder and install the rubber bushing on the lamp
base.
c. Slide the lamp into the lamp opening. Handle lamp by the
end cap.
d. Re-install the metal washer and lamp lock nut.
e. Carefully tighten the lamp lock nut.
f. Connect the lamp connector to the end of the lamp.
g. Make sure the other side of the lamp connector is inserted
completely on the daughter board lamp pins.
3. Install the germicidal lamp.
a. Remove nuts and washers from the mounting studs.
b. Place the two rubber washers on the mounting studs first.
c. Slide the lamp into the main unit and align so the mounting
ears on the lamp go through the mounting studs on the
main unit.
d. Install the hard-plastic washers and nuts.
e. Tighten the nuts snugly but do not over tighten.
f. Connect the lamp connector to the end of the lamp.
g. Make sure the other side of the lamp connector is inserted
completely on the main ballast board lamp pins.
4. Insert the airflow sensor PCB into the hole on the bottom of the
unit. The sensor connector is keyed so it can only go in one way.
5. Ensure the ribbon cable is inserted completely in the main
ballast board and the control board on the cover.
4 • Pentair® ComAir 20T Installation and Operation Guide
ComAir 20T External Components
Germicidal
Lamp
Airflow Sensor
Power Inlet
Choosing an Installation Location
The ComAir 20T may be installed either in the main return duct, or
the main supply duct as shown in figure 4 below. When installing
on the supply side, locate it as far away from the heating source as
practical while remaining in the main air stream.
ComAir 20T Installation Locations
Return Side
Lamp
Shield
Figure 2
Supply Side
Figure 3
Ozone
Lamp
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