15
on your particular installation, some of these components are
optional and may not be used. Please refer to the descriptions
and accompanying figures when installing these items.
NOTE
: Some parts may not be supplied with each furnace.
Refer to the literature in the extra parts bag for the parts
included with the particular furnace.
Finish Flange
The finish flange must be installed to vent the combustion
air pipe through the top of the furnace.
NOTE
: For proper
installation it is important that the pipe and screw holes in the
finish flanges, gasket, and cabinet are aligned. See
.
1. Position flange gasket over hole in the furnace cabinet.
2. Position finish flange on top of the flange gasket.
NOTE
: Make sure the flange is properly oriented so that
the FRONT lettering is located near the front of the furnace
as shown in
3. Secure flange and gasket to cabinet with three field supplied
sheet metal screws.
Rubber Grommets
The 2 1/4” rubber grommet is used to seal the opening
between the furnace cabinet and the 2” PVC vent pipe. The
rubber grommet should be installed in the 3” hole prior to
running the vent pipe out of cabinet. No sealants are required.
.
The 7/8” rubber grommet is used to seal the opening between
the furnace cabinet and the gas pipe. The rubber grommet
should be installed in the 1 5/8” hole prior to running the gas
pipe into the cabinet. No sealants are required.
The 3/4” rubber grommet is used if venting out the left side of
the cabinet and the drain tube is routed through the blower
deck. Remove the plastic plug from the hole and install the
grommet before routing the drain tube.
A strain relief bushing is provided for routing the pressure
transducer wiring assembly.
NOTE:
For proper furnace operation, make sure there are
no open grommet holes from the top to the bottom section
of the cabinet or open grommet holes in the cabinet.
PVC Components
IMPORTANT NOTES:
• Before permanently installing these components, it is
recommended you dry-fit them first to ensure proper
fit and alignment with other vent pipes.
• The 2” PVC components shown in
provided in the extra parts bag. However the PVC
Trap (P/N 664659) can be purchased thru your local
distributor.
The 2” PVC tee, reducer, PVC Trap and 1/2” X 1/2” hose
barb are used when the inducer is rotated to vent out thru
the left or right side of the furnace cabinet. See
.
The 1/2” X 3/4” hose barb can be used to route the condensate
drain to the outside of the cabinet. It must be installed from
inside the cabinet with the threaded end inserted thru the 1
1/16” hole. The condensate drain should be connected to the
barbed end. Attach 1” PVC drain line to the threaded end.
Typical Orientation
1. Install the PVC Tee vertically on the 2” vent pipe that is
extending out the side of the cabinet. Permanently bond
Figure 13. Finish Flange
Finish
Flange
Flange
Gasket
Hole for
Flue
Vent Pipe
Hole for Inlet
Air Vent Pipe
FRONT
FRONT lettering must be
located near front
of furnace
Figure 14. Rubber Grommets
Ø 3/4” Rubber
Grommet
ø 2 1/4” Rubber Grommet
(see note)
ø 7/8” Rubber
Grommet
them together using appropriate primer and cement. Refer
to the typical orientation shown in
.
2. Install the reducer or PVC trap (if supplied) on the bottom
end of the PVC Tee. Permanently bond them together
using appropriate primer and cement.
3. Install the 1/2” x 1/2” hose barb on the 2” PVC reducer.
NOTE
: Do not over tighten! Use an adequate amount of
Teflon tape on the threads. Do not use liquid sealants.
4. Verify all connections and joints for tight fit and proper
alignment with other vent pipes.
Alternate Orientation
1. Install the 2” PVC Tee horizontally on the 2” vent pipe that
is extending out the side of the cabinet. Permanently bond
