Application Considerations; Air Conditioning; Turning Vanes - Honeywell TrueCLEAN Professional Installation Manual

Application Considerations

The Honeywell Enhanced Air Cleaner is designed for use in the return air duct of a forced air heating, cooling,
and ventilation system. Models FH8000A1620, FH8000A2020 and FH8000A2520 are specifically designed for
use in systems with an air handler. Models FH8000F1625 and FH8000F2025 are specifically designed for use in
systems with a forced air furnace. The Honeywell Enhanced Air Cleaner is CSA certified for shock and electrical
fire hazard only.

Air Conditioning

The Honeywell Enhanced Air Cleaner should be installed in a system so that all the return air is circulated through
the Honeywell Enhanced Air Cleaner. It should be located upstream of the air conditioning equipment. This
will help keep the equipment clean and prevent condensation from forming within the Honeywell Enhanced Air
Cleaner.
Humidifiers
An evaporative humidifier can be mounted upstream of the Honeywell Enhanced Air Cleaner. It is best to install
atomizing humidifiers downstream of the Honeywell Enhanced Air Cleaner because hard water salt deposits and
water droplets may damage the Honeywell Enhanced Air Cleaner. If an atomizing humidifier must be mounted
upstream of the Honeywell Enhanced Air Cleaner, it should be mounted as far upstream as possible (at least 6 ft.
[1.8 m] recommended), and a standard disposable furnace filter should be mounted between the humidifier and
the Honeywell Enhanced Air Cleaner to trap hard water salt deposits and water droplets.
Transitions
If the return air duct or fan coil openings do not fit the Honeywell Enhanced Air Cleaner cabinet openings, gradual
transitions are recommended to reduce air turbulence and maximize efficiency.
FH8000A – No more than 20 degrees (about 4 in. per running ft.) of expansion should be used on each side of
the transition fitting.
FH8000F – No more than 45 degrees (about 8.5 in. per running ft.) of expansion should be used on each side of
the transition fitting.

Turning Vanes

If the Honeywell Enhanced Air Cleaner is installed adjacent to a 90 degree duct elbow, turning vanes should be
added inside duct to improve air distribution across the face of the Honeywell Enhanced Air Cleaner.
TrueCLEAN™ Enhanced Air Cleaner 68-0308EFS—03
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