Nordyne M2RC-080 Installation Instructions Manual page 16

Upfiow Furnace
Rubber
Couplinl
Combustion
Air Pipe
3" Coupling
Furnace Front
Box
Fumace
\
Support System
on VertJc_at R ise
blow Joints
Support System wKh flmt support
as clolm to the furnace as posslbJe
114" per foot
3" diameter
Neoprene Coupling*
w/2 Clamps
Downflow Furnace
C
Exhaust
Support System
on Vertical Rise
Below Joints
Support System with flint support
as close to the furnace as possible
Upwa_ Pitch
l_'_rFoot
Flexible 3" x 2" neducRr
to adapt tha 2" diameter
vent pipe of furnace to
the 3" diameter pipe of
the vent
Figure 15. Vertical Venting
Upflow Furnace Downflow Furnace
Combustion Air Inlet Pipe Collar
Diameter 3" for coupling or reducer
Fureace Top _
2" PVC Exhaust Vent All Models
Combustion Air Inlet
3" PVC on 0801t00 models
Furnace Top
_2" PVC
Exhaust Vent
All Models
Useappropriate adaptorfor connection tofurnace. Useappropriate adaptor for connection to furnace.
Figure 16. Furnace Pipe Adaptions
16