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A951X-SVX001-1D-EN
Downflow Furnace - Left Side Vented
Combustion Air
Changes need to be made to the inducer orientation
when installing the downflow furnace with the
combustion air vented through the side.
The figure below shows the furnace as it is sent from
the factory.
Use the following steps to modify the furnace for
downflow with side venting of combustion air.
IImmppoorrttaanntt:: Right side vent outlet is not allowed
because condensate will not drain.
Before proceeding, lay unit on its back to make
conversion easier.
1. Disconnect all drain tubes from condensate trap.
NNoottee:: When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking.
NNoottee:: If preferred, the trap may be removed before the
hoses.
2. Remove drain tubing from bottom of inducer
housing.
3. Remove rain gutter tubing from inducer outlet.
4. Remove tubing from condensate pressure switch.
5. Remove two 3” plugs on left side of cabinet. To be
used for combustion air exhaust and inlet.
6. Reuse the two 3” plugs to seal the two 3” default
openings on the top of the cabinet.
FFuurrnnaaccee CCoommbbuussttiioonn AAiirr EExxhhaauusstt OOppttiioonnss
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