Horizontal Attic Installation; Construct A Working Platform; Install Furnace; Horizontal Crawlspace Installation - Carrier WeatherMaker 8000 Installation, Start-Up, And Operating Instructions Manual

FURNACE
CASING
WIDTH
Combustible Flooring Using KGASB Subbase
14-3/16
Combustible Flooring with CD5 or CK5 Coil Assembly or
Combustible Flooring Using KGASB Subbase
17-1/2
Combustible Flooring with CD5 or CK5 Coil Assembly or
Combustible Flooring Using KGASB Subbase
21
Combustible Flooring with CD5 or CK5 Coil Assembly or
Combustible Flooring Using KGASB Subbase
24-1/2
Combustible Flooring with CD5 or CK5 Coil Assembly or
Step 4—Horizontal Attic Installation
Do not install the furnace on its back; safety control operation
will be adversely affected. Never connect return-air ducts to
the sides or back of the furnace. Failure to follow this warning
could result in fire, personal injury, or death.
The furnace can be installed horizontally on either the left-hand
(LH) or right-hand (RH) side. A typical attic installation is shown
in Fig. 7.

CONSTRUCT A WORKING PLATFORM

Construct working platform on location where all required furnace
clearances are met. (See Table 1 and Fig. 7.)

INSTALL FURNACE

1. Position furnace in desired location.
2. Connect gas supply pipe. See Fig. 7 for typical piping entry.
3. Install field-supplied filter retainers as indicated in Fig. 10 and
Table 4 before connecting return-air duct to furnace.
B
Fig. 4—Floor and Plenum Opening Dimensions
Table 3—Opening Dimensions (In.)
APPLICATION
Non-Combustible Flooring
KCAKC Coil Box
Non-Combustible Flooring
KCAKC Coil Box
Non-Combustible Flooring
KCAKC Coil Box
Non-Combustible Flooring
KCAKC Coil Box
A
PLENUM
OPENING
D
FLOOR
OPENING
C
PLENUM OPENING
A
12-11/16
11-13/16
12-5/16
16
15-1/8
15-1/2
19-1/2
18-5/8
19
23
22-1/8
22-1/2
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. 7.
→
Step 5—Horizontal Crawlspace Installation
The furnace can be installed horizontally with either the LH or RH
side up. In a crawlspace, furnace can either be hung from floor
joist (see Fig. 9) or installed on suitable blocks or pad. (See Fig. 8.)
The furnace can be suspended from each corner by hanger bolts (4
each 3/8-in. all-thread rod) cut to desired length, 1- X 3/8-in. flat
washer, 3/8-in. lockwasher, and 3/8-in. nut. Dimples are provided
for hole locations. (See Fig. 1.)
Since horizontal crawlspace installation is very similar to attic
installation, refer to Step 4. The installation of a sheet metal shield
in front of louvered control panel is covered in Step 4. For a
crawlspace installation, this same sheet metal shield must be
installed above louvered control panel. Extend sheet metal shield
over furnace top far enough to cover gas pipe entry hole.
6
FLOOR OPENING
B C D
19 13-3/8 19-5/8
19 13-7/16 20-3/8
19 13-5/16 20
19 16-5/8 19-5/8
19 16-3/4 20-3/8
19 16-1/2 20
19 20-1/8 19-5/8
19 20-1/4 20-3/8
19 20 20
19 23-5/8 19-5/8
19 23-3/4 20-3/8
19 23-1/2 20
A96283