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Multiple Venting
The SL280UHV(X) furnace can vent in multiple positions.
See FIGURE 18.
The make up box may be removed and the combustion
air inducer may be rotated clockwise or counterclockwise
90° to allow for vertical or horizontal vent discharge in a
vertical or horizontal cabinet position.
Remove the four mounting screws, rotate the assembly
(assembly consists of orice plate, proving switch, gasket
and combustion air inducer), then reinstall the mounting
screws. See unit Installation Instructions for more detail.
IMPORTANT
The combustion air pressure switch must be moved
for horizontal discharge air left position.
flue
transition
vent pipe
vent pipe
vent pipe
vent pipe
flue
transition
FLOW
AIR
FLOW
AIR
vent pipe
FLOW
AIR
flue transition
vent pipe
pressure switch
vent pipe
In all positions route the wires away from moving parts and the heat of the inducer
motor to prevent damage to the wires. The pressure switch must be installed above
the CAI to prevent moisture from collecting in the hoses or switch.
FIGURE 18
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