Lennox International Inc G61MP Series Units, Gas Units installation instructions

Use PVC primer and solvent cement or ABS solvent cement meeting ASTM specifications, refer to Table 4. As an alter- nate, use all purpose cement, to bond ABS, PVC, or CPVC pipe when using fittings and pipe made of the same materi- als. Use transition solvent cement when bonding ABS to ei- ther PVC or CPVC.

Low temperature solvent cement is recommended. Metal or plastic strapping may be used for vent pipe hangers. Uni- formly apply a liberal coat of PVC primer for PVC or use a clean dry cloth for ABS to clean inside socket surface of fit- ting and male end of pipe to depth of fitting socket.

Canadian Applications Only − Pipe, fittings, primer and solvent cement used to vent (exhaust) this ap- pliance must be certified to ULC S636 and supplied by a single manufacturer as part of an approved vent (ex- haust) system. When bonding the vent system to the fur- nace, use ULC S636 approved One−Step Transition Ce- ment to bond the pipe to the flue collar, or to bond the 90° elbow or reducing 90° elbow to the flue collar. In addi- tion, the first three feet of vent pipe from the furnace flue collar must be accessible for inspection.

Table 5 lists the available exhaust termination kits, as well as vent pipe equivalencies which must be used when siz- ing vent pipe. All Lennox vent terminations are PVC.

TABLE 5

OUTDOOR TERMINATION KITS AND CORRESPONDING EQUIVALENCIES

				Vent Pipe Length Equivalency (feet)
		Outdoor Ex-	Outdoor Ex-
	VENT	haust Accel-	haust Accel-	1−1/2"	2" Con-	3" Con-	2" Wall Plate	3" Wall Plate	2" Wall
		erator	erator	Concentric
UNIT	PIPE
					centric Kit	centric Kit	Kit	Kit	Ring Kit
MODEL	DIA.	(Dia. X	(Dia. X	Kit
	(in.)	Length)	Length)
		1−1/2" X 12"	2" X 12"	71M80	69M29	60L46	22G44	44J40	15F74
				or 44W92	or 44W92	or 44W93	or 30G28	or 81J20
	2	4	Not	12	Not	Not	4	4*	4
			Allowed		Allowed	Allowed
	2−1/2	5	Not	15	Not	Not	5	5*	5
			Allowed		Allowed	Allowed
36B−045
	3	7	Not	21	Not	Not	7	7*	7
			Allowed		Allowed	Allowed
	4	14	Not	42	Not	Not	14	14*	14
			Allowed		Allowed	Allowed
	2	4	Not	12	Not	Not	4	4*	4
			Allowed		Allowed	Allowed
	2−1/2	5	Not	15	Not	Not	5	5*	5
36B−070			Allowed		Allowed	Allowed
36B−071	3	8	Not	24	Not	Not	8	8*	8
			Allowed		Allowed	Allowed
	4	14	Not	42	Not	Not	14	14*	14
			Allowed		Allowed	Allowed
	2	Not	1	Not	3	3	Not	1	1**
		Allowed		Allowed			Allowed
48C−090	2−1/2	Not	2	Not	6	6	Not	2	2**
		Allowed		Allowed			Allowed
60C−090
		Not		Not			Not
60C−091	3		2		6	6		2	2**
		Allowed		Allowed			Allowed
	4	Not	4	Not	12	12	Not	4	4**
		Allowed		Allowed			Allowed
	2−1/2	Not	2	Not	6	6	Not	2	2
		Allowed		Allowed			Allowed
48C−110
	3	Not	2	Not	6	6	Not	2	2
60C−110
		Allowed		Allowed			Allowed
60C−111
	4	Not	4	Not	12	12	Not	4	4
		Allowed		Allowed			Allowed
	3	Not	6	Not	Not	15	Not	6	Not
									Allowed
		Allowed		Allowed	Allowed		Allowed
60D−135
	4	Not	10	Not	Not	25	Not	10	Not
									Allowed
		Allowed		Allowed	Allowed		Allowed

*Requires field−provided and installed 1−1/2" exhaust accelerator. **Requires field−provided and installed 2" exhaust accelerator.

Termination kits 44W92 (includes 1−1/2" reducer), 44W93, 30G28 and 81J20 approved for use in Canadian installations.

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