88
S9V2-SVX001-1A-EN
Upflow Furnace in Horizontal Right
Position - Left Side Vented Combustion
Air
Changes need to be made to the inducer orientation
when installing the upflow furnace in the horizontal
right position with the combustion air vented through
the bottom. Additional changes are needed for hose
routing, condensate trap location, and inducer port
caps, and the condensate plug.
The below figure shows the furnace as it is sent from
the factory.
Use the following steps to modify the furnace for
horizontal right with bottom venting of combustion air.
Before proceeding, lay unit on its back to make the
conversion easier.
1. Remove all drain hoses from condensate trap.
NNoottee:: When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking. Removing the
trap before the hoses is also an option.
2. Remove tubing from PS2 pressure switch.
3. Remove drain tubing from bottom of inducer
housing.
4. Remove rain gutter tubing from inducer outlet.
5. Remove tubing from condensate pressure switch.
6. Remove the screws that hold the condensate trap
bracket. The condensate trap should not be
removed from the condensate trap bracket.
Remove assembly and retain for later installation.
7. Remove the condensate adapter located inside the
condensate trap connection on the cold header and
retain for later installation.
NNoottee:: The plastic condensate adapter with O-rings
located inside the cold header that is held in
place by the condensate trap bracket. Do not lose
this adapter. The condensate adapter needs to
be in place when the condensate trap bracket is
reattached.
8. Remove 3” plug on right side of unit. To be used for
condensate trap.
9. Install condensate trap grommet.
10. Remove 3” plugs on the left side of the cabinet. To
be used for combustion air inlet.
11. Reuse the two 3” plugs to seal the two 3” default
openings on the top of the furnace.
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