Lennox International Inc MERIT SERIES GAS FURNACE DOWNFLOW AIR DISCHARGE, ML193DF Intake Exhaust

TYPICAL EXHAUST PIPE CONNECTIONS

Pipe size determined in table 7.

2”

2”

3”

2”

2”

2”

or

TRANSITION
	DO NOT transition from smaller	INTAKE EXHAUST
*2”
	to larger pipe size in horizontal
	runs of exhaust pipe.		TOP VIEW

*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 20

TYPICAL INTAKE PIPE CONNECTIONS

Pipe size determined in table 7.

2”2”

2” 2”

2” or

TRANSITION

3”

*2”

TRANSITION

*2”

*2”

3”

INTAKE EXHAUST

TOP VIEW

*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 21

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