Upflow Furnaces

Support System on

Vertical Rise Below Joints

Support System with

 

first support as close

5'

to furnace as Possible

Combustion

Air Pipe

Exhaust

Vent

Straight Neoprene

Couplings with

2 Hose Clamps*

(Optional - Not

Shown)

Upward Pitch 1/4" per Foot

Cabinet

Furnace Front

Downflow Furnaces

Exhaust

Vent

Support System on

Vertical Rise Below Joints

Support System with

 

first support as close

5'

to furnace as Possible

 

Combustion

 

Air Pipe

 

Straight Neoprene

 

Rubber Couplings

Upward Pitch

with 2 Hose Clamps*

1/4" per Foot

Cabinet

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

Combustion Air Inlet Pipe Collar Diameter 3" for coupling or reducer

Furnace Top

2" PVC Exhaust Vent All Models

Downflow Furnaces

Combustion Air Inlet

2" PVC on 040/060 models, 3" PVC on 080/100 models

Furnace Top

2" PVC

Exhaust Vent

All Models

Figure 18. Furnace Pipe Adaptions

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Nordyne RC 92+, RL 90+ installation instructions Vertical Venting