Lennox EL296UHVX Series Unit Information page 58

TYPICAL EXHAUSTAND INTAKE PIPE CONNECTIONS IN UPFLOW
EXHAUST
Exhaust
DO NOT transition
from larger to smaller
pipe in horizontal runs
of exhaust pipe.
TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT OR
NON-DIRECT VENT APPLICATIONS
EXHAUST
DIRECT OR NON-DIRECT VENT APPLICATIONS
EXHAUST
INTAKE
2"
2"
3"
* 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.
12" max.
2"
or
2"
2"
INTAKE
3"
*2"
EXHAUST
*2"
INTAKE
* 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.
INTAKE
3"
Exhaust
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
FIGURE 22
(RIGHT HAND DISCHARGE SHOWN)
Exhaust
2"
2"
2"
or 2"
from smaller to larger
pipe in horizontal runs
2"
2"
Exhaust
3"
from larger to smaller
pipe in horizontal runs
*2"
*2"
FIGURE 23
Page 58
2"
2"
2"
or
045/070 Only
TRANSITION
45°
MAX
DO NOT transition
SIDE VIEW
of exhaust pipe.
045/070 Only
DO NOT transition
1−1/2"
of exhaust pipe.
*2"
*2"
Exhaust
2"
1−1/2"
2"
Exhaust
45°
MAX
TRANSITION