Lennox International Inc G61MP Direct Vent applications where combustion air is taken, Reducer

TYPICAL AIR INTAKE PIPE CONNECTIONS		2−1/2",
UPFLOW OR DOWNFLOW DIRECT VENT APPLICATIONS
		3" OR
	(Right-Hand Exit in Upflow Application Shown)
		4
		REDUCER
	2
		2
	2	2	2
	2
PLUG
(Must be	G61MP−36B−045	G61MP−36B−045
glued in
	G61MP−36B−070	G61MP−36B−070
place)
	G61MP−48C−090	G61MP−48C−090
	G61MP−60C−090	G61MP−60C−090
		G61MP−48C−110*
		G61MP−60C−110*

*Limit pipe length to 2" in G61MP−110 and −135 applications.

2−1/2", 3" OR 4

REDUCER

2"*

G61MP−36B−045

G61MP−36B−070

G61MP−48C−090

G61MP−60C−090

G61MP−48C−110*

G61MP−60C−110*

G61MP−60C−135*

FIGURE 15

TYPICAL AIR INTAKE PIPE CONNECTIONS							Follow the next three steps when installing the unit in Non-
							Direct Vent applications where combustion air is taken
HORIZONTAL DIRECT VENT APPLICATIONS
(Horizontal Right-Hand Air Discharge Application Shown)							from indoors and flue gases are discharged outdoors.
	G61MP−36B−045						TYPICAL AIR INTAKE PIPE CONNECTIONS
	G61MP−36B−070				2-1/2”,
*Limit pipe	G61MP−48C−090				3” OR 4”		UPFLOW OR HORIZONTAL NON-DIRECT
length to 2" in	G61MP−60C−090							VENT APPLICATIONS
G51MP−110	G61MP−48C−110*						(Right-Hand Exit in Upflow Application Shown)
	G61MP−60C−110*
and −135					REDUCER
applications.	G61MP−60C−135*							6 in. Max.
					2”*	2-1/2”,
	G61MP−36B−045	2”		2”*		3” OR 4”
							PLUG
	G61MP−36B−070
	G61MP−48C−090						(Must be
	G61MP−60C−090			REDUCER			glued in	INTAKE
							place)
	G61MP−48C−110*		2”*					DEBRIS
	G61MP−60C−110*					2”		SCREEN
								(Provided)
			2”
	G61MP−36B−045
	G61MP−36B−070
	G61MP−48C−090
	G61MP−60C−090 2”

NOTE − Debris screen and elbow may be rotated, so that screen may be positioned to face forward, backward or downward.

FIGURE 17

FIGURE 16

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