Carrier 58DX - Manual (Page 2)

HOLE IN
FLOOR
3
Fig. 2—Floor Opening for Concrete Slab
Insteillation requires the following;
*1. Inspection
*11. Furnace Location
*III. Gas Piping
*IV. Combustion-Air and Vent Piping
*V. Condensate Piping
VI. Supply-Air Plenum Installation
VII. Electrical
VIII. Sequence of Operation
IX. Fdter
*X. Startup and Adjustment
XI. Care and Maintenance
*For these sections (or installation steps), refer to the appro­
priate sections of “Procedures for Downflow Condensing
Furnaces” booklet packaged with this unit.
For accessory instedlation details, refer to the applicable
installation hterature.
NOTE: Remove all shipping brackets and materials before
operating the furnace.
VI. SUPPLY-AIR PLENUM INSTALLATION
A. Installation on a concrete slab
1. See Fig. 5 for dimensions and location of supply-air
opening in furnace bottom.
2. Construct hole in floor per dimensions in Fig. 2 and
Table 1.
3. Place plenum and furnace as shown in Fig. 3.
Table 1—Opening Dimensions
Furnace A B
Width Furnace Furnace & Coil*
171/2 16 1/8 19 5/8 19 7/16
21 19 5/8 19 5/8 19 7/16
241/2 231/8 19 5/8 19 7/16
Fig. 4—Furnace, Plenum, and
Base Installed on a Combustible Floor
*These dimensions appiy when a Model 28RC or 28RD Evaporator Coil
casing is to be installed.
B. Installation on a combustible floor
1. Read Installation Instructions packaged with down­
flow subbase.
2. Cut and frame hole in floor per dimensions in Installa­
tion Instructions packaged with downflow subbase. If
this requires cutting of a floor joint, tie ends of cut
joist into adjacent joists so that proper floor support
wUl be maintained.
Table 2—Dimensions (In Inches)
Size A D E
040 171/2 15 7/8 16
060 171/2 15 7/8 . 16
080 21 19 3/8 191/2
100 24 1/2 22 7/8 23
A87297
WA
Fig. 5—Dimensional Drawing
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