Lennox EL296DFV Installation Instructions Manual page 20

Pipe size determined in table 7.
2"
Pipe size determined in table 7.
TYPICAL EXHAUST PIPE CONNECTIONS
2"
2"
or
3"
TRANSITION
*2"
DO NOT transition from smaller
to larger pipe size in horizontal
* 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 25
TYPICAL INTAKE PIPE CONNECTIONS
2"
3"
TRANSITION
*2"
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
NOTE − Intake pipe and exhaust pipe must be the same diameter.
FIGURE 26
2"
2"
runs of exhaust pipe.
2"
2"
2"
or
TRANSITION
*2"
*2"
Page 20
INTAKE
EXHAUST
TOP VIEW
2"
3"
INTAKE
EXHAUST
TOP VIEW