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Upflow Furnaces
Support System on
Vertical Rise Below Joints
Furnace Front
2 Hose Clamps* .............
......... J/
(Optional
- Not
Shown)
Cabinet
1/4" per Foot
Downflow
Furnaces
Support System on
Vertical Rise Below Joints
Furnace Front
Figure 17. Vertical Venting
* These couplings are field-supplied
and can be used if the installation requires breakable connec-
tions in the piping. Note that a maximum of two couplings per pipe are allowed.
Upflow
Furnaces
Downflow
Furnaces
Combustion
Air Inlet Pipe Collar
Diameter
3" for coupling
or reducer
\\\\
Furnace Top
Combustion
Air Inlet
2" PVC on 040/060
models,
3" PVC on 080/100
models
Furnace Top
2" PVC
Exhaust Vent
All Models
2" PVC Exhaust
Vent All Models
Figure 18. Furnace
Pipe Adaptions
21
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