INSTALLATION INSTRUCTIONS Gas Furnace: (F/G)9MAE
440 01 4300 02 47
Specifications subject to change without notice.
NOTICE
Recommended Support for Vent Terminations
It is recommended that rooftop vent terminations in excess of
36 inches (1.0 M) in vertical length be supported by EITHER the
Direct Vent Termination Kit shown in Table 12 or by
field-supplied brackets or supports fastened to the structure.
Cut the required number of holes in the roof or sidewall for vent
and combustion air pipes. Sidewall holes for 2-pipe vent
terminations should be side-by-side, allowing space between
the pipes for the elbows to fit on the pipes.
Holes in the roof for direct−vent (two−pipe) terminations should
be spaced no more than 18−in. (457 mm) apart to help avoid
vent gas recirculation into combustion air intake.
Termination elbows will be installed after the vent and (if used)
combustion air pipe is installed.
Sidewall Terminations
Concentric Vent
NOTE: Follow the instructions of the vent terminal
manufacturer. These instructions are provided as a reference,
only.
Determine an appropriate location for termination kit using the
guidelines provided in section “Locating The Vent Termination”
in this instruction.
1. Cut one 4−in. diameter hole for 2−in. kit, or one 5−in.
diameter hole for 3−in. kit.
2. Loosely assemble concentric vent/combustion air
termination components together using instructions in kit.
3. Slide assembled kit with rain shield REMOVED through
hole.
NOTE: Do not allow insulation or other materials to accumulate
inside of pipe assembly when installing it through hole.
4. Locate assembly through sidewall with rain shield
positioned no more than 1−in. (25 mm) from wall as
shown in Figure 46.
5. Disassemble loose pipe fittings. Clean and cement using
same procedures as used for system piping. DO NOT
CEMENT POLYPROPYLENE FITTINGS.
Direct Vent (2-Pipe) Termination
NOTE: Follow the instructions of the vent terminal
manufacturer. These instructions are provided as a reference,
only.
NOTICE
Recommended Support for Vent Terminations
It is recommended that side−wall vent terminations in excess
of 24 inches (0.6 M) in vertical length be supported by
EITHER the Direct Vent Termination Kit in Table 12 or by
field-supplied brackets or supports fastened to the structure.
Determine an appropriate location for termination kit using the
guidelines provided in section “Locating The Vent Termination”
in this instruction.
1. Cut two holes, one for each pipe, of appropriate size for
pipe size being used.
2. Loosely install elbow in bracket (if used) and place
assembly on combustion−air pipe.
3. Install bracket as shown in Figure 43 and Figure 45.
NOTE: For applications using vent pipe option indicated by
dashed lines in Figure 46 and Figure 47, rotate vent elbow 90
from position.
4. Disassemble loose pipe fittings. Clean and cement using
same procedures as used for system piping. DO NOT
CEMENT POLYPROPYLENE FITTINGS.
For Ventilated Combustion Air Terminations, terminate as
shown in Figure 47.
(Direct Vent / 2-Pipe System ONLY)
When two or more furnaces are vented near each other, two
vent terminations may be installed as shown in Figure 43 and
Figure 45, but next vent termination, or pair of vent
terminations, must be at least 36−in. (914 mm) away from first
two terminations. It is important that vent terminations be made
as shown in Figure 43 and Figure 45 to avoid recirculation of
gases.
Inducer Outlet Restrictor
The loose parts bag may contain an inducer outlet restrictor.
The outlet restrictor is NOT used on these furnaces. Discard
restrictor.
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