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The ComAir 20T may be installed either in the main return duct or main supply duct
as shown in the diagram. When installing on the supply side, locate it as far away
from the heating source as practical while remaining in the main air stream.
ADJUSTING THE OZONE OUTPUT LEVEL
The output level adjustment push button is accessed through the hole in the cover. See figure on the
following page. The settings are low, medium, high and boost. Press the button on the cover of the unit
to cycle the settings from low to boost and then back to low. The unit will default to the low setting on
initial power up.
LOW – Use with HVAC units with capacities between 5 and 8.75 Tons or in spaces with 1500 to 2600
square feet of area.
MEDIUM – Use with HVAC units with capacities between 8.75 and 12.5 Tons or in spaces with 2600 to
3750 square feet of area.
HIGH – Use with HVAC units with capacities between 12.5 and 16.25 Tons or in spaces with 3750 to 4900
square feet of area.
BOOST – Use with HVAC units with capacities between 16.25 and 20 Tons or in spaces with 4900 to 6000
square feet of area.
Note: Buildings with heavy tobacco smoke or other strong odors can use higher
settings than recommended above.
