Combustion Air; Downflow Furnace - Top Vented - Trane S9V2B040U3PSBC/D Installation, Operation And Maintenance Manual

Upflow/horizontal and dedicated downflow gas-fired, direct/non-direct vent, 2-stage condensing variable speed furnaces
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31. Connect PS2 tubing to switch and new sensing
location. Use additional tubing in ship with bag, if
necessary.
I I m m p p o o r r t t a a n n t t : : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
32. Remove port cap on the right side of inducer and
connect inducer condensate tubing. Connect other
end of inducer condensate tubing to top port on the
condensate trap. Cut tubing to length, if necessary.
33. Install previously removed port cap onto bottom
port of the inducer. (As viewed in upflow)
34. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I I m m p p o o r r t t a a n n t t : : Cut to length to ensure there is no sag
or trap created.
35. Remove port plug from rain gutter and install in
new position on opposite side of the rain gutter.
36. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Route rain gutter condensate hose to the right of
the inducer motor.
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S9V2-SVX001-1A-EN
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F F u u r r n n a a c c e e C C o o m m b b u u s s t t i i o o n n A A i i r r E E x x h h a a u u s s t t O O p p t t i i o o n n s s

Downflow Furnace - Top Vented

Combustion Air

No changes need to be made to the inducer when
installing the downflow furnace with the combustion
air vented through the top.
I I m m p p o o r r t t a a n n t t : : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
1. Attach the vent outlet gasket to the vent outlet.
2. Install vent outlet to top of cabinet using 2 screws
supplied in the doc pack.
3. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
4. Slide PVC pipe through vent outlet adaptor and
insert into inducer outlet.
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