508187-01
Issue 2116
Page 28 of 51
Multiple Venting
The A80UH2E / 80G2UHE(L) furnace can vent in multiple
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 orifice
plate, proving switch, gasket and combustion air inducer),
then reinstall the mounting screws. See unit Installation
Instructions for more detail.
The combustion air pressure switch must be moved for
horizontal discharge air left position.
IMPORTANT
Figure 13.
FLOW
AIR
vent pipe
FLOW
AIR
Vent Pipe
FLOW
AIR
Vent Pipe
Vent Pipe
Vent Pipe
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.