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ComAir 20T Installation
While performing installation procedures all power to the unit must
be 'Off' and there should be no airflow through the heating/cooling
system.
1. When installing the ComAir 20T, a template may be used.
The template is included in the shipping box. Refer to figure 4
for mounting locations.
2. If possible, install the unit, so the airflow passes over the
germicidal lamp first and then passes over the ozone
lamp. Reverse the cover by removing the hinge nuts
and attaching the hinge cover to the opposite side of
the chassis. This will allow the cover to be oriented so it is
easy to read and operate the unit once it is installed.
3. Attach the installation template to the ductwork using tape.
4. Cut out openings in ductwork for the unit. See template for
steps and recommended tools.
5. There are 4 mounting holes provided inside the cover and 4
mounting holes provided outside the unit. Either
set of holes are acceptable to use. Position the unit into
ductwork and secure with the self-tapping screws provided
using a 5/16" nut driver.
6. Close the cover and secure it with the cover screws.
7. Connect main power to a non-switched power supply
(90-265 VAC). Note: On initial startup, the 'power, air,
germicidal, ozone and low' lights will remain on for 30 to
120 seconds. After this time, the ' A ir, Germicidal and Ozone'
lights will turn ' o ff'. If the lights do not turn 'Off,' the airflow
sensitivity might need to be adjusted to be less sensitive.
The unit can be set for low sensitivity (more airflow is
required to turn the system ' o n'), M - Medium sensitivity
and H - High sensitivity (less airflow is required to turn the
system 'On'). See figure 7 for location of airflow sensitivity
jumper.
8. Turn the 'On' heating/cooling system and allow it to operate for
five minutes, at this time the ' A ir, Germicidal and Ozone'
lights should illuminate. If the lights do not turn 'On', the
airflow sensitivity might need to be adjusted to be more
sensitive. See figure 7 for the airflow sensitivity jumper.
9. Turn the 'Off' heating/cooling system; the ComAir 20T will
shut-down within 5 to 30 seconds. After this time, the
' A ir, Germicidal and Ozone' lights will turn 'Off.'
The 'Power' and 'Low' lights will remain on when the system is
not in operation.
10. The ComAir 20T is now ready for use.
Note: Ozone air treatment occurs only when air is circulating
through the heating/cooling system. For maximum effectiveness,
turn the thermostatic controller switch from the ' A UTO' position
to the 'ON' position. The switch is located on the thermostat.
Open windows or doors and dirty ductwork may diminish the unit' s
effectiveness.
How to Flip the Cover Orientation
Remove cover
and move
to other side
Figure 4
Cover Orientation Options
Airflow
Figure 5
Airflow Sensitivity Jumper
Figure 6
Pentair® ComAir 20T Installation and Operation Guide • 5
Remove bracket and
move to other side
Airflow
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