Downflow Installation; Horizontal Attic Installation; Construct A Working Platform; Install Furnace - Carrier 58RAV 170 Series 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 5—Downflow Furnace Installation
NOTE: This furnace is approved for use on combustible materials
or wood flooring. A factory accessory floor base, as listed on the
furnace rating plate, MUST be used. A factory accessory floor
base is not required when this furnace is installed on manufactur-
er's Coil Assembly Part No. CD5 or CK5, or Coil Box Part No.
KCAKC is used.
1. Determine application being installed from Table 3.
2. Construct hole in floor per dimensions specified in Table 3
and Fig. 5.
3. Construct plenum to dimensions specified in Table 3.
4. If downflow subbase (KGASB) is used, install as shown in
Fig. 6.
If coil assembly CD5, CK5, or Coil Box KCAKC is used,
install as shown in Fig. 7.
PLENUM
OPENING
B
Fig. 5—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
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
Step 6—Horizontal Furnace 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. 8.

CONSTRUCT A WORKING PLATFORM

Construct working platform on location where all required
furnace clearances are met. (See Fig. 2 and 8.)

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.
7
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