Nordyne + RC 92+ Installation Instructions Manual page 21

Upfl ow Furnaces
Combustion
Air Pipe
Furnace Front
Downfl ow Furnaces
Exhaust
Vent
Furnace Front
* These couplings are fi eld-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.
Upfl ow Furnaces
Combustion Air Inlet Pipe Collar
Diameter 3" for coupling or reducer
Furnace Top
2" PVC Exhaust Vent All Models
Support System on
Vertical Rise Below Joints
Support System with
first support as close
to furnace as Possible
Exhaust
Vent
Straight Neoprene
Couplings with
2 Hose Clamps*
(Optional - Not
Shown)
Cabinet
Support System on
Vertical Rise Below Joints
Support System with
first support as close
to furnace as Possible
Combustion
Air Pipe
Straight Neoprene
Rubber Couplings
with 2 Hose Clamps*
Cabinet
Figure 17. Vertical Venting
Downfl ow Furnaces
Figure 18. Furnace Pipe Adaptions
5'
Upward Pitch
1/4" per Foot
5'
Upward Pitch
1/4" per Foot
Combustion Air Inlet
2" PVC on 040/060 models,
3" PVC on 080/100 models
Furnace Top
2" PVC
Exhaust Vent
All Models
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