13
20"
(508 mm)
24 3/4"
(629 mm)
A/C or H/P
Coil
Wall
Panel
Coil Air
Filters
Return
Air
Grille
Floor
56"
(1423 mm)
29"
( 737 mm)
27"
(686 mm)
11, area “A”), bend the plenum tabs and
secure them directly to the duct.
4.
At area “B”, bend the plenum tabs up and
back over, around the plenum connector
(see Figure 11, step 3).
5.
Fold/form the duct flap against the side of
the plenum connector and attach as shown
(see Figure 11, Step 4). Use at least three
staples on each duct flap OR... if a 2X
block/joist is not provided, use at least two
sheet metal fasteners on each duct flap.
6.
Tape the duct flap edges with an approved
tape for a leak-free joint.
Alcove Installation
1.
Cut alcove rough openings to minimum
dimensions shown in Figure 12.
2.
Attach frame assembly with four fasteners
(provided or equivalent) into pre-punched
holes on top of furnace (see Figure 5).
3.
At manufacturers discretion, if additional
securement is required attach each side of
frame assembly to alcove opening using
holes provided.
4.
Attach return air grille to frame assembly by
hooking grille over flange on top of frame
and into channel on bottom.
Closet Installation
NOTE: For closet installations, the return air
grille mounting frame is not used since the fur-
nace is located inside the closet (see Figure 13).
1.
Cut return air opening in desired position in
door or wall, preferably above top of fur-
nace. Refer to Table 1 for return air opening
requirements.
2.
Insert four fasteners, securing grille to door
or wall.
Furnace Installation
1.
Install 240V supply circuit(s) and 24V wir-
ing to closet or alcove (see Figure 14 for
appropriate locations).
2.
Remove refrigerant line knockouts in fur-
nace only when installing indoor coil of an
air conditioner or heat pump system, or for
hook-up of a VentilAire accessory when the
furnace is used in the upflow position. Refer
to instructions supplied with accessory
equipment.
3.
Remove unit front door and slide back until
bottom slots in rear of unit engage with both
tabs of optional rear mounting plate, OR...
If mounting plate is not used, an equivalent
method of securing the rear of the unit may
be used as long as it prevents displace-
ment during transport if used in a manufac-
tured home.
NOTE: The furnace does not need to be hard up
against the rear mounting plate. The tabs will
engage into the slots and allow approximately
1/2” of furnace front to back and right to left.
Figure 12. Typical Alcove Installation
Figure 13. Typical Closet Installation
Wall-Mount
Return Air Grille
Holes (4)
Closet
Door
