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Page 20 of 55
Pipe size determined in table 7.
2"
2"
2"
2"
or
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
NOTE: Exhaust pipe and intake pipe must be the same diameter.
Figure 22. Typical Exhaust Pipe Connections
Pipe size determined in table 7.
2"
2"
3"
TRANSITION
*2"
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
NOTE: Exhaust pipe and intake pipe must be the same diameter.
Figure 23. Typical Intake Pipe Connections (Direct Vent Applications)
2"
3"
TRANSITION
*2"
DO NOT transition
from larger to smaller
pipe in horizontal runs
of exhaust pipe.
2"
2"
2"
or
NOTE: 1-1/2" Vent Pipe
Diameter Allowed Only
on 045/070 Units
1-1/2"
or
TRANSITION
*2"
Issue 2223
NOTE: 1-1/2" Vent Pipe
Diameter Allowed Only
on 045/070 Units
1-1/2"
or
TRANSITION
*2"
INTAKE
TOP VIEW
TRANSITION
*2"
3"
*2"
EXHAUST
TOP VIEW
INTAKE
EXHAUST
507769-05G / 31-5000656
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