6
5. Position the cabinet between the furnace and return air duct
(see Figures 3, 4, and 5). A transition duct may be required.
On some furnaces, one or more screws may interfere with
the ease of removal of the purifier door. In this case, replace
the interfering screw(s) with pop rivet(s). Removing the
screws without replacing them with pop rivets may have an
adverse effect on air sealing or structural integrity of the fur-
nace.
6. Use foam tape or silicone sealant between the furnace and
the Air Purifier cabinet.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage.
Mounting holes are provided for duct work and furnace
attachment. The screws on the down--stream side of the
cabinet should be installed so that the screw heads are inside
Air Purifier cabinet to prevent damage to the Air Purifier
cartridge.
CAUTION
!
7. Mounting holes are provided for ductwork and furnace at-
tachment. To access the mounting holes on the upstream
flange of the purifier adjacent to the incoming power wir-
ing, slide off the wiring cover as illustrated in Fig. 9. The
wiring cover must be reinstalled prior to operating the puri-
fier.
8. Seal seams with tape or caulking after the Air Purifier cabi-
net has been secured.
Special consideration must be given when applying the 2025 Air
Purifier to a 24 1/2 inch (622 mm) wide furnace.
1. Prepare transition, following recommended transition draw-
ing (see Fig. 10). Fabricate a 2 1/4 inch (57 mm) tall (min-
imum) transition.
2. Place transition on top of Air Purifier. Secure with sheet
metal screws. Place furnace on top of transition. Make sure
furnace rests evenly on top of transition and Air Purifier.
3. Secure furnace to transition using sheet metal screws.
4. Continue with normal installation practices.
Step 1: Remove screw
Step 2: Remove electrical cover
from cabinet
A11546
Fig. 9 -- Removal of Electrical Tray Cover
A
(Inside Opening)
Air Purifier Outlet
Front Bracket
Rear Bracket
Furnace Casing Width 24 1/2” (622)
Side Bracket
Side Bracket
2 1/4” (57)
22 7/8” (581)
(Outside)
5/8” (16)
Flanges
(Where Shown)
B
19 1/8” (486)
NOTE: Weld 3 places
in 4 corners
A11490
Fig. 10 -- Transition
Summary of Contents for PGAPAXX1620
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