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1. Shut off any electrical power to the furnace.
2. Label and disconnect the tubing and wires from the
pressure switch
(Figure
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.
PRIMARY
LOCATION
Figure 18. Alternate Pressure Switch Location
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 witht he 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
Figure
19.
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.
20
18).
ALTERNATE
LOCATION
Figure
19.
FRONT
FRONT lettering must be
located near front
of furnace
Hole for Flue
Vent Pipe
Figure 19. Finish Flange
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
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.
ø 2 1/4" Rubber Grommet
(see note)
Ø 3/4" Rubber
Grommet
Figure 20. Rubber Grommets
Finish Flange
Flange Gasket
Hole for Inlet
Air Vent Pipe
20.
ø 7/8" Rubber
Grommet
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