A.
Construct a Working Platform
Constructs a working platform, on location, where all required
furnace clearances are met. (See Fig. 2 and 8.)
B.
Install Furnace
1. Position furnace in desired location.
2. Connect gas supply pipe. See Fig. 8 for typical piping entry.
3. Install field-supplied filter retainers as indicated in Fig. 11
and Table 4 before connecting return-air duct to furnace.
4. Connect supply- and return-air ducts.
5. Install 24- X 24–in. sheet metal shield on platform in front
of louvered control panel as shown in Fig. 8.
VII.
HORIZONTAL CRAWLSPACE INSTALLATION
The furnace can be installed horizontally with either LH or RH
side up. In a crawlspace, furnace can either be hung from floor
joist (see Fig. 10) or installed on suitable blocks or pad. (See Fig.
TABLE 3—OPENING DIMENSIONS (IN.)
FURNACE
CASING
WIDTH
APPLICATION
PLENUM OPENING
FLOOR OPENING
A
B
C
D
14–3/16
Non-Combustible Flooring
12–11/16
19
13–3/8
19–5/8
Combustible Flooring Using KGASB Subbase
11–13/16
19
13–7/16
20–3/8
Combustible Flooring with CD5 or CK5 Coil Assembly or
KCAKC Coil Box
12–5/16
19
13–5/16
20
17–1/2
Non-Combustible Flooring
16
19
16–5/8
19–5/8
Combustible Flooring Using KGASB Subbase
15–1/8
19
16–3/4
20–3/8
Combustible Flooring with CD5 or CK5 Coil Assembly or
KCAKC Coil Box
15–1/2
19
16–1/2
20
21
Non-Combustible Flooring
19–1/2
19
20–1/8
19–5/8
Combustible Flooring Using KGASB Subbase
18–5/8
19
20–1/4
20–3/8
Combustible Flooring with CD5 or CK5 Coil Assembly or
KCAKC Coil Box
19
19
20
20
24–1/2
Non-Combustible Flooring
23
19
23–5/8
19–5/8
Combustible Flooring Using KGASB Subbase
22–1/8
19
23–3/4
20–3/8
Combustible Flooring with CD5 or CK5 Coil Assembly or
KCAKC Coil Box
22–1/2
19
23–1/2
20
Fig. 5—Floor and Plenum Opening Dimensions
A96283
PLENUM
OPENING
C
A
B
D
FLOOR
OPENING
A93043
FRONT
BACK
FRONT
B
A
C
K
—7—
