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Alternate Pressure Switch Location
In some inducer orientations, the inducer pressure switch may
interfere with gas pipe installation. Determine the side of the
cabinet the gas pipe will enter and see if the inducer pressure
switch needs to be moved. If the pressure switch interferes
with the gas pipe, use these instructions for relocating it to
an alternate location:
1. Shut off any electrical power to the furnace.
2. Label and disconnect the tubing and wires from the pressure
switch (
).
Figure 16
3. Remove two screws securing the pressure switch to the
inducer housing.
4. Remove the pressure switch from the mounts on the
inducer housing and relocate it to the other set of mounts
90° from previous location.
5. Secure the pressure switch with two screws.
6. Reconnect the tubes and wires to the pressure switch.
Accessories
The components below are included in the extra parts bag
that is supplied with the purchase of your furnace. Depending
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
.
Figure 17
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.
See
.
Figure 18
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.
Figure 16. Alternate Pressure Switch Location
FRONT lettering must be
.
Figure 17
ø 2 1/4" Rubber Grommet
(see note)
Ø 3/4" Rubber
Grommet
Figure 18. Rubber Grommets
ALTERNATE
PRIMARY
LOCATION
LOCATION
FRONT
located near front
of furnace
Hole for
Flue
Vent Pipe
Figure 17. Finish Flange
Finish
Flange
Flange
Gasket
Hole for Inlet
Air Vent Pipe
ø 7/8" Rubber
Grommet
17
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