S8XB-SVX001-1A-EN
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Furnace Combustion Air Exhaust Options
Note: Default is left side for electric and gas connections.
The following sections give instructions for the
different furnace orientations and the options for
venting the exhaust combustion air.
IImmppoorrttaanntt:: When looking at the different orientations,
the direction of the combustion air exhaust
in the illustration’s description is after the
furnace has been rotated, if needed.
Table 7. Venting Options for Upflow Applications
Refer to the illustrations below to find the approved venting options for upflow furnace.
Important: The exhaust must be vented to the outdoors.
Upflow Orientation or Installation
Vented out top.
Vented through left side. Vented through right side.
Table 8. Venting Options for Horizontal Left Applications
Refer to the illustrations below to find the approved venting options for horizontal left furnace.
Important: The exhaust must be vented to the outdoors.
Note: 4” Type B double wall vent pipe must be used inside of the furnace cabinet.
Horizontal Left Orientation or Installation
Vented out top.
Vented through left side.
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