it in place. Filter should rest on the top of the filler strip when
installed.
Never operate unit without a filter or with filter access door
removed. Failure to follow this warning can cause fire,
personal injury, or death.
Step 6—Leveling Legs (If Required)
When the furnace is used with side inlet(s) and leveling legs are
required, refer to Fig. 7, and install field-supplied, corrosion-
resistant 5/16-in. machine bolts and nuts.
NOTE:
The length of the bolt should not exceed 1-1/2 in.
1. Lay furnace on its back. Locate and drill 5/16-in. diameter
hole in each bottom corner of furnace as shown in Fig. 7.
2. Install nut on bolt and install bolt and nut in hole. (Install flat
washer if desired.)
3. Install another nut on other side of furnace base. (Install flat
washer if desired.)
4. Adjust outside nut to provide desired height, and tighten inside
nut to secure arrangement.
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 NSCNGPIC and
all authorities having jurisdiction.
Refer to Table 4 for the recommended gas pipe size. Risers must
be used to connect to the furnace and the meter.
If a flexible connector is required or allowed 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.
Use the proper length of pipes to avoid stress on the gas
control manifold. Failure to follow this warning can result in
a gas leak, causing fire, explosion, personal injury, or death.
Connect the gas pipe to the furnace using a backup wrench to
avoid damaging gas controls.
Fig. 6—Bottom Filter Arrangement
(Control Removed for Clarity)
A96030
WASHABLE
FILTER
FILTER
SUPPORT
FILTER
RETAINER
24
1
⁄
2
-IN. WIDE
CASINGS ONLY:
CUT AND FOLD
FACTORY-PROVIDED
FILTERS AS SHOWN
TO DESIRED SIZE.
17
1
⁄
2
-IN. WIDE
CASINGS ONLY:
INSTALL FIELD-SUPPLIED
FILTER FILLER STRIP
UNDER FILTER.
1
″
24
1
/
2
″
3
″
Table 3—Filter Information (In.)
FURNACE
CASING WIDTH
FILTER SIZE*
FILTER
TYPE
Side Return
Bottom Return
14-3/16
(1) 16 X 25 X 1†
(1) 14 X 25 X 1
Cleanable
17-1/2
(1) 16 X 25 X 1†
(1) 16 X 25 X 1
Cleanable
21
(1) 16 X 25 X 1
(1) 20 X 25 X 1† Cleanable
24-1/2
(2) 16 X 25 X 1†
(1) 24 X 25 X 1
Cleanable
* Filters can be field modified by cutting the frame as marked and folding to the
desired size. Alternate sizes can be ordered from your distributor or dealer.
† Factory provided with the furnace.
Fig. 7—Leveling Leg Installation
A89014
1
3
⁄
4
″
1
3
⁄
4
″
1
3
⁄
4
″
1
3
⁄
4
″
5
⁄
16
″
5
⁄
16
″
5
⁄
16
″
5
⁄
16
″
7
Summary of Contents for WEATHERMAKER 8000 58WAV
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