44
HORIZONTAL INSTALLATIONS
1. Position the unit to minimize long runs of duct or runs
of duct with many turns and elbows.
2. If summer air conditioning is desired, position the in-
door coil on the supply air side of the unit. Ensure that
no air can bypass this coil.
3. Connect the furnace to the supply air plenum.
4. Connect the return air ducting to the return air opening
at the return-air end of the unit. Make the connection
air tight to prevent the migration of toxic fumes and
odors including carbon monoxide from migrating into
the living space from an adjacent fuel-burning appli-
ance.
NOTE: In horizontal configuration, side return air cut
out is not permitted.
5. If a filter is installed near the furnace, be sure to
have adequate space for installation and removal
of the unit filter.
NOTE: DO NOT take return air from furnace rooms,
garages or cold areas. Avoid return air from utility
rooms, kitchens, laundry rooms and bathrooms.
FIGURE 10
CUT - OUT USING
EMBOSSED ANGLES AS
A GUIDE FOR PROPER
SIZE 23” x 14”
ST-A1194-04-X0
TABLE 1
NON-COMBUSTIBLE FLOOR BASES
Floor Base Size
No. Cabinet
RXGC-B17 17
RXGC-B21 21
RXGC-B24 24
Ducting
DUCTING
FIGURE 9
ST-A1194-39-00
I
NSTALLER SHOULD USE DUCK BILLED PLIERS (AKA:
F
OLDING PLIERS)TO BEND THE FLANGE ALONG THE
PERFORATIONS.
AS - SHIPPED FLAT
INSTALLER BENT - UP
ALTERNATE - BENT (DOWN)
21 5/8"
C
OMBUSTIBLE
FLOOR
MATERIAL
NON-COMBUSTIBLE
FLOOR BASE
ST-A1194-43-00
FIGURE 11
NON-COMBUSTIBLE FLOOR BASE INSTALLATION INSTRUCTIONS
FLOOR CUTOUT
DIMENSIONS
FLOOR
BASE NO.
CABINET
WIDTH
FLOOR CUTOUT
DIMENSION “A”
RXGC-B17
RXGC-B21
RXGC-B24
17.5”
21.0”
24.5”
17.0”
20.0”
23.5”
FLOOR CUTOUT
DIMENSIONS
COMBUSTIBLE
FLOOR
MATERIAL
NON-COM-
BUSTIBLE
FLOOR
BASE
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