Table of Contents
Advertisement
Fig. 9—Horizontal Installation on Blocks
VIII. FILTER ARRANGEMENT
WARNING: 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 the return-air duct has been connected to the furnace,
install the filters in a V-formation inside the return-air plenum. See
Fig. 11 and Table 4 for horizontal applications. Horizontal filter
retainers must be field supplied. See Fig. 12 for downflow
applications.
IX. GAS PIPING
Gas piping must be installed in accordance with national and local
codes. Refer to the current edition of the NFGC.
ANGLE
IRON OR
EQUIVALENT
(B)
(A)
ROD LOCATION
USING DIMPLE
LOCATORS
(SEE DIMENSIONAL
DWG FOR
LOCATIONS)
(A) PREFERRED ROD LOCATION
(B) ALTERNATE ROD LOCATION
A95235
3
/
-IN. HEX NUT
8
& WASHER (4)
REQD PER ROD
Fig. 10—Horizontal Crawlspace Installation on Hanger Rods
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.
CAUTION: If a flexible connector is required or al-
lowed by the authority having jurisdiction, black iron
pipe shall be installed at the gas valve and extend a
minimum of 2 in. outside the furnace casing.
WARNING: Use the proper length of pipes to avoid
stress on the gas control manifold. Failure to follow this
warning could result in a gas leak, causing fire, explosion,
personal injury, or death.
CAUTION: Connect the gas pipe to the furnace using a
backup wrench to avoid damaging gas controls.
(B)
(A)
(A)
(B)
NOTES:
1. A 1 In. clearance minimum between top of
furnace and combustible material.
2. The entire length of furnace must be
supported when furnace is used in horizontal
position.
—9—
3
⁄
-IN. ROD
8
(A)
(B)
A96633
Advertisement
Table of Contents
