Dealer Installation Instructions
Forced air handler/furnace systems:
The HEPA system should be installed as a bypass system, with part of the return ducted into the HEPA system. The filtered air is then rerouted back into the return air, and continues through the system to be heated/cooled.
Typical Return to Return Application
For homes with upflow forced air handler/furnace systems.( Air handler/furnace is shown in a typical basement.)
Typical Return to Return Application
For homes with horizontal forced air handler/furnace systems. (Air handler/ furnace is shown in an typical attic.
Distance between A and B should be 6' to 16' for best results
A
Air Handler/
Furnace
Air
BHandler/Furnace
Filter
HEPA System
Distance between A and B should be 6' to 16' for best results
A
B
NOTE: This filtration system is an ADDITIONAL filter, and does NOT replace the existing air handler/furnace system filter.
Preparation:
Here are some things to consider as you decide where to install the HEPA system.
Location:
•Make sure there is room to open the HEPA filter access panel for filter changes/inspections.
•Keep the HEPA system in a location where you can still access the air handler/furnace filter.
•Keep the HEPAsystem away from possible water damage.
•Vibration pads will reduce vibration for installations where the unit is placed on the floor.
•Install HEPA System on floor or suspended platform. If the unit is suspended, screws must not penetrate through the cabinet. Make sure that you have the proper chains/straps/joists and equipment to keep unit secure. Intake (Marked as ‘Air In’ on unit):
•Intake ducts should be installed upstream of any humidifiers and be installed on the main return.
•Intake duct should be installed at least 6 ft. away from the outflow duct on the main return. Outflow (Marked as ‘Clean Air Out’ on unit):
•Outflow duct should be installed as close to the air handler/furnace inlet as possible but not directly into the return air elbow of the main return.
•If the unit is being installed independently of any other system, room diffusers are recommended to help distribute airflow evenly in the occupied space.
Ducting:
•If HEPA system is installed where inlet and outflow collars face down, metal elbows must be connected to both inlet and outflow collars.
•Each connection must be sealed with aluminum tape or mastic, including all take offs.
•Installed duct runs should be as straight as possible (if the duct runs are too long, reduced CFM may result).
•If duct is exposed to unconditioned air, externally insulated flex duct is highly recommended.
•Externally insulated flex duct can also be used for noise reduction purposes.
•For best indoor air quality, do not use ductboard or fiberglass inside of ducts.
Electricity:
• The unit must be plugged into a grounded 120V, 60Hz outlet.
Required Materials for Installation of Unit:
Items for 350
Flex or rigid duct (length as required) | 8” round & 6” round |
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Takeoffs | One 8” & One 6” |
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Items for 675 |
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Flex or rigid duct (length as required) | 10” round & 8” round |
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Takeoffs | One 10” & One 8” |
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All Models |
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Aluminum tape or mastic as required |
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Misc. hanging materials - field provided |
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NOTE: Be sure to review ‘Rules for Safe Installation and Operation’ on page 1 of this document before
