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Preparation:
Here are some things to consider as you
decide where to install the HEPA system
with an HRV/ERV.
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 han-
dler/furnace filter.
• Keep the HEPA system 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):
• Most HRV/ERV systems will not move as much air
as the HEPA system. For these systems, install an
additional return from another treated air source
into the HEPA system.
• If using an additional return duct, it should be
installed upstream of any humidifiers. The fresh
air outflow of the HRV/ERV should be "Y" connect-
ed to the additional return duct then connected to
the inlet of the HEPA system.
• The additional return duct (if any) should be
installed at least 6 ft. away from the outflow duct
on the main return.
• Duct both the HRV/ERV and the additional return
into the intake of the HEPA system.
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.
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 possi-
ble (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 2500HV & 4000HV
Flex or rigid duct 6” round
(length as required)
Takeoffs Two 6”
Items for 6000V
Flex or rigid duct 10” round & 8” round
(length as required)
Takeoffs One 10” & One 8”
Items for 6500, 8500 & 10000
Flex or rigid duct 12” round or 10” x 12”
(length as required)
Takeoffs Two 10”x12”
All Models
Aluminum tape or mastic as required
Misc. hanging materials - field provided
NOTE: Be sure to review ‘Rules for Safe Installation
and Operation’ on page 1 of this document before
start-up of this unit.
10
HRV/ERV
Figure 16.
Forced air handler/furnace system with an HRV/ERV
This application provides filtration of all Outdoor Air (OA) that is brought into the home through the HRV/ERV,
thus reducing the introduction of dust, pollen and mold from the outdoor air. For systems that have HRV/ERV
units installed, we recommend ducting the ‘fresh air’ outflow from the HRV/ERV into the HEPA system. If the
HRV/ERV CFM (cubic feet per minute) rating is lower than that of the HEPA system, an additional return needs
to be installed into the HEPA system (See figure 8.) The outflow air from the HEPA system then needs to be
installed into the main return of the air handler/furnace system. Ensure that you follow the proper installation
instructions as outlined in the HRV/ERV Installation manual(s).
Dealer Installation Instructions
Example of Return to
Return Installation
with an HRV/ERV
For homes with a forced
air handler/furnace sys-
tem and an HRV/ERV
system.
Additional Return
Air Handler/Furnace
Air Handler/Furnace Filter
HEPA System
NOTE: This filtration system is an ADDITIONAL filter, and does NOT
replace the existing air handler/furnace system filter.