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15
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)
Furnace
Front
18"
Nearest
Wall or
Partition
Figure 13. Typical Alcove Installation Figure 14. Typical Closet Installation
Wall-Mount
Return Air Grille
Holes (4)
Closet
Door
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 upfl ow 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 displacement
during transport if used in a manufactured
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 adjustment front to back and
right to left.
4. Secure front of unit with one or more fas-
teners at mounting hole(s) provided or at
tie-down tab (see Figure 16).
5. See Electrical System Installation to com-
plete furnace installation.
TYPICAL INSTALLATION OF
UPFLOW SYSTEMS
The following steps describe installation instruc-
tions for an overhead supply duct system with a
return air system that can be either over the fl oor
(unducted) or through the fl oor (ducted).
Figure 15. Closet Installation
0" Side
Clearance
to Furnace
Cabinet
Provide min. 235
sq. in. (1516 cm )
open free area in
front or side wall
or in top of
closet door
CLOSET DOOR
6"
(152 mm)
0" Side
Clearance
to Furnace
Cabinet
Provide min. 250
sq. in. (1613 cm
2
)
open free area in
front or side wall
or in top of
closet door
CLOSET DOOR
1"
(25 mm)
Standard Closet Installation
Special 1" Clearance