92
S9V2-SVX001-1A-EN
5. Twist to insure PVC is fully inserted.
6. Tighten the two clamps.
7. Install the combustion air inlet PVC pipe.
NNoottee:: The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
NNoottee:: If required, transition to larger venting within 2'
of the cabinet. CPL00938 – 2" x 3" offset coupling
may be used and is factory supplied with 120
MBTUH furnaces. Canadian applications may
use BAYREDUCE to meet ULC-S636
requirements.
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. Additional
changes are needed for hose routing and PS2 rotation.
The figure to the top right 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.
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 tubing from PS2 to cold header.
FFuurrnnaaccee CCoommbbuussttiioonn AAiirr EExxhhaauusstt OOppttiioonnss
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