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INSTALLATION INSTRUCTIONS
Condensate Trap − Upflow Orientation
When the furnace is installed in the upflow position, it is not
necessary to relocate the condensate trap or associated
tubing.
Refer to Figure 8 for upflow condensate trap
information. Refer to Condensate Drain section for information
how to install the condensate drain.
Condensate Trap − Downflow
Orientation
When the furnace is installed in the downflow position, the
condensate trap will be initially located at the upper left corner
of the collector box, as received from the factory. See the top
Figure 8
Upflow Trap Configuration
Collector Box
Plugs
Figure 9
Unconverted Factory Configuration as viewed in the Downflow Orientation
Remove relief tube from relief
port on condensate trap.
Remove the screw
that secures the trap
to the collector box and
remove trap.
Loosen clamp on inlet
to vent elbow.
12
Vent Pipe Clamp
Condensate Trap
Relief Port
UPFLOW TRAP CONFIGURATION
1 & 2 Stage Units
Representative drawing only, some models may vary in appearance.
Remove pressure switch tube from
front pressure switch and discard. A
new tube is shipped in the loose parts
bag.
Representative drawing only, some models may vary in appearance.
Specifications subject to change without notice.
image in Figure 9. When the furnace is installed in the
downflow orientation, the condensate trap must be relocated
for proper condensate drainage. See the bottom image in
Figure 9.
To Relocate the Condensate Trap:
S
Orient the furnace in the downflow position.
S
Figure 9 shows the condensate trap and tubing before and
after relocation. Refer to Figure 9 to begin the trap conversion.
S
Refer to Condensate Drain section for information how to install
the condensate drain.
Pressure Switch
Port
Remove tube from relief port.
Remove middle and bottom
plugs. DO NOT DISCARD.
Gas Furnace: (F/G)9MVE
Vent Elbow Clamp
Vent Elbow
Collector Box
Plug
Condensate Trap
Relief Port
Condensate Trap
Outlet
A11307
A11587LA
440 01 4401 02
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