INSTALLATION INSTRUCTIONS
Gas Furnace: (F/G)9MAE
12
440 01 4300 02
Specifications subject to change without notice.
Downflow Trap Configuration
A11585B
Representative drawing only, some models may vary in appearance.
7
9
Install plugs on
open ports on
collector box.
Connect relief tube to
port on collector box.
Rotate elbow to
desired position and
tighten clamp to
15 lb.
−
in.
Slide tube in stand
−
offs
to adjust length.
Trim excess tube.
Connect pressure switch
tube to port on collector
box.
Attach condensate trap
with screw to collector
box.
Connect relief tube to
relief port on condensate
trap.
Align condensate trap
over middle and bottom
ports of collector box.
Condensate Trap
−
Horizontal
Orientation
When the furnace is installed in the horizontal right position, the
condensate trap will be initially located at the bottom of the
collector box, as received from the factory. See the top image in
Figure 10
. When the furnace is installed in the horizontal left
position, the condensate trap will be initially located at the top of
the collector box, as received from the factory. See the top image
in
Figure 9
. In both cases trap must be repositioned on the
collector box for proper condensate drainage. See bottom images
in
Figure 9
and
Figure 10
.
A field
−
supplied, accessory Horizontal Installation Kit (trap
grommet) is required for all direct
−
vent horizontal installations
(only). The kit contains a rubber casing grommet designed to seal
between the furnace casing and the condensate trap. (See
Figure 16
)
NOTICE
The field-supplied, accessory horizontal drain trap grommet
is ONLY REQUIRED FOR DIRECT VENT APPLICATIONS. It
is NOT required for applications using single-pipe or ventil-
ated combustion air venting.
NOTICE
The condensate trap extends below the side of the casing in
the horizontal position. A minimum of 2-in. (51 mm) of clear-
ance is required between the casing side and the furnace
platform for the trap to extend out of the casing in the hori-
zontal position. Allow at least 1/4-in. per foot (20mm per
meter) of slope down and away from the furnace in horizontal
sections of drain line.
NOTE
: The condensate trap extends below the side of the
casing in the horizontal position. A minimum of 2 in. (51 mm) of
clearance is required between the casing side and the furnace
platform for the trap to extend out of the casing in the horizontal
position. Allow at least 1/4
−
in. (6 mm) per foot of slope away
from the furnace in horizontal sections of drain line.
To Relocate the Condensate Trap:
Remove the knockout in the casing for the condensate trap.
Install the grommet in the casing when required for direct
−
vent
horizontal applications.
Orient the furnace in the desired position.
Allow for 2 in. (51 mm) of clearance underneath the furnace for
the condensate trap and drain line.
Figure 9
shows the condensate trap and tubing before and
after relocation in the horizontal right position.
Figure 10
shows the condensate trap and tubing before and
after relocation in the horizontal left position.
Refer to the appropriate figure to begin the trap conversion.
Refer to Condensate Drain section for information how to install
the condensate drain.