3. Tape the mounting template level on the plenum
and proceed to cut and drill the necessary holes as
marked.
4. Cut the small joints on the mounting flaps on the
back of the unit as indicated. Bend all the flaps
outward slightly less than 90 degrees, except for
the upper bottom flap which is only bent up 45
degrees. This bottom flap will act as a deflector for
the exhaust air entering back into the plenum.
5. Place the gasket material around the two openings
on the back of the air cleaner. Place the unit on the
plenum so the flanges are placed through the holes
cut in the duct. Fold all the flanges, except the
upper bottom flap over, to enclose the duct
between the flanges and the unit. The upper
bottom flap is only bent up 45 degrees.
6. Secure the unit to the duct with the screws
provided.
GENERAL INSTALLATION STEPS (Collar Mount)
(Inlet collars are available as a kit from your distributor)
Collar Mount Installation
1. This unit can be installed with collars and flexible
ducting if desired. Openings are prepunched on
the top and bottom of the unit for this purpose.
Remove the plastic film over the holes and snip out
the joints to open the hole. Do not open the holes
in the back of the unit if you are collar mounting the
air cleaner.
2. The collar is installed with the flange on the inside
of the cabinet with only the collar ring on the
outside of the cabinet. Compress the collar until
you can insert the flange into the opening in the
enclosure. Enlarge the collar to its maximum and
install two screws into the ring to hold it to the
proper diameter. Turn the collar in the hole until the
holes in the enclosure line up to the holes on the
collar flange. Secure with the screws provided.
3. The intake collar on the return duct must be
installed after the last return branch connection on
the plenum. If outside air is introduced into the
return air duct, either through a HRV (Heat
Recovery Ventilator) or direct, it should be added to
the system before the intake inlet to the Air
Cleaner.
4. The 8 inch intake collar (top) must draw air from
the return duct at a location that will be ahead of
the clean exhaust air, that will be returned to the
duct from the Air Cleaner.
5. An 8 inch collar will be installed on the return duct
and a length of 8 inch flexible hose or duct is
required to attach between the 8 inch intake collar
and the collar on the return duct. When running
the hose, make sure that there are no kinks or
sharp bends that will impede the air flow to the
unit. Secure and seal the hose and connections to
prevent air leakage.
6. The 8 inch exhaust collar can be mounted in the
same manner to the bottom of the unit. An 8 inch
collar will be installed on the return duct close to
the furnace and a length of 8 inch flexible hose or
duct is required to attach between the exhaust
collar and the collar on the return duct. The ideal
location is low on the return air boot pointing at the
furnace. To prevent air shear inside the duct, it is
recommended that you install a deflector inside
the boot, so the discharged air is deflected down
into the boot. When running the hose, make sure
that there are no kinks or sharp bends that will
impede the air flow from the unit. Secure and seal
the hose and connections to prevent air leakage.
Self-Contained Basement Installation
Self-Contained Attic Installation
