Lennox SLP99UH070XV36B - Page 52

Page 52
FIGURE 27
TYPICAL EXHAUSTAND INTAKE PIPE CONNECTIONS IN
UPFLOW APPLICATIONS
2”
2”
2”
3”
2”
2”
or
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
EXHAUST
* 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.
TRANSITION
2”
1−1/2”
070 Only
2”
INTAKE
3”
INTAKE
EXHAUST
Exhaust
Exhaust
DO NOT transition
from larger to smaller
pipe in horizontal runs
of exhaust pipe.
Exhaust
FIGURE 28
SIDE VIEW
2”
2”
2”
or
TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL APPLICATIONS
(RIGHT HAND DISCHARGE SHOWN)
3”
2”
45°
MAX
45°
MAX
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
EXHAUST
12” max.
*2”
*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.
TRANSITION
1−1/2”
2”
3”
*2”
*2”
*2”
*2”
INTAKE
2”
2”
or
2”
2”
EXHAUST
INTAKE
070 Only
Exhaust
DO NOT transition
from larger to smaller
pipe in horizontal runs
of exhaust pipe.
Exhaust
Exhaust