18-CE03D1-1F-EN
75
Upflow Furnace in Horizontal Left Position —Top Vented Combustion Air
Changes need to be made to the inducer orientation when installing
the upflow furnace in the horizontal left position with the combustion
air vented through the side. Additional changes are needed for hose
routing, condensate trap orientation, and inducer hoses.
The figure to the right shows the furnace as it is sent from the factory.
Use the following steps to modify the furnace for horizontal left with
side venting of combustion air.
Before proceeding, lay unit on its back to make the conversion easier.
1.
Remove all drain hoses from condensate trap.
Note:
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 to cold header.
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.
Note:
There is a plastic adapter with O-rings located inside the cold
header that is held in place by the condensate trap bracket. Do
not lose this adapter. This adapter needs to be in place when
the condensate trap bracket is reattached.
3
4
2
5
1.
Loosen the clamp holding the 45° elbow. Remove the elbow and
discard.
