Filter Arrangement; Gas Piping - Carrier WeatherMaker 8000 Installation, Start-Up, And Operating Instructions Manual

FURNACE
(OR COIL CASING
WHEN USED)
COMBUSTIBLE
FLOORING
DOWNFLOW
SUBBASE
SHEET METAL
PLENUM
FLOOR
OPENING
Fig. 5—Furnace, Plenum, and Subbase Installed on a
Combustible Floor
LINE CONTACT ONLY PERMISSIBLE BETWEEN
LINES FORMED BY INTERSECTIONS OF
THE TOP AND TWO SIDES OF THE FURNACE
JACKET AND BUILDING JOISTS,
STUDS, OR FRAMING.
SEDIMENT TRAP
Step 6—Filter Arrangement
Never operate unit without a filter or with filter access door
removed. Failure to follow this warning could result in fire,
personal injury, or death.
The 2 factory-supplied filters are shipped in the blower compart-
ment. After return-air duct has been connected to furnace, install
filters in a V-formation inside return-air plenum. See Fig. 10 and
Table 4 for horizontal applications. Horizontal filter retainers must
be field supplied. See Fig. 11 for downflow applications.
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Fig. 6—Furnace, Plenum, and Coil Assembly or Coil
GAS
ENTRY
24"
SHEET
METAL
24"
Fig. 7—Typical Attic Installation
Step 7—Gas Piping
Gas piping must be installed in accordance with national and local
codes. Refer to the current edition of the NFGC.
Canadian installations must be installed in accordance with NSC-
NGPIC and all authorities having jurisdiction.
Refer to Table 5 for recommended gas pipe sizing. Risers should
be used to connect to the furnace and to the meter.
7
FURNACE
CD5 OR CK5
COIL ASSEMBLY
OR KCAKC
COIL BOX
COMBUSTIBLE
FLOORING
SHEET METAL
PLENUM
FLOOR
OPENING
Box Installed on a Combustible Floor
FLUE VENT
I N
6 " M
30-IN. MIN
WORK AREA
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