Lennox SLP98UHV Installation Instructions Manual page 16

TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN UPFLOW APPLICATIONS
Intake
Exhaust
2"
2" 2"
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL AIR APPLICATIONS
Exhaust
Exhaust
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
2"
2"
2"
or
FIGURE 18
(RIGHT HAND DISCHARGE SHOWN)
12" max.
2"
or
2"
2"
2"
Intake
3"
3"
*2"
*2"
*2"
*2"
Intake
FIGURE 19
Page 16
Exhaust Intake
*2" *2"
2"
2"
or
2"
2"
TRANSITION
DO NOT transition
from smaller to larger
pipe size in horizontal
runs of exhaust pipe.
DO NOT transition
from smaller to larger
pipe size in horizontal
runs of exhaust pipe.
45° 45°
MAX MAX
SIDE VIEW