Lennox ELITE EL195UHE Installation Instructions Manual page 22

TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT OR
EXHAUST INTAKE
2"
2"
TYPICAL EXHAUST AND INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON-DIRECT VENT
EXHAUST
EXHAUST
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
NON-DIRECT VENT APPLICATIONS
EXHAUST INTAKE
3"
3"
TRANSITION
*2"
*2"
* When transitioning up in pipe size, use the shortest length of 2" PVC pipe possible.
APPLICATIONS
(RIGHT HAND DISCHARGE SHOWN)
12" max.
2"
or
2"
2"
2"
INTAKE
3"
*2"
*2"
INTAKE
TRANSITION
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
FIGURE 24
2"
2"
or
2"
2"
2"
TRANSITION
3"
*2"
*2"
FIGURE 25
Page 22
2"
2"
2"
or
45°
MAX
2"
*2"
SIDE VIEW
DO NOT transition
from smaller to larger
pipe in horizontal runs
of exhaust pipe.
2"
45°
MAX