A.O. Smith LB/LW 500 manual Valve, Main Gas, LP 300 Series 77780, 86505-32, 86505-2, 86505-17, 333

LB/LW PROPANE GAS TRAIN ASSEMBLY - MODEL 1000

Item	Description	Part No.	Item	Description	Part No.
1	Valve, Main Gas, LP 300 Series	................... 77780	10	Elbow, 90 Street 1-1/4”	94516
2	Regulator, LP 301 Series	192460	11	Elbow, 90 1-1/4”	192216
3	Valve, Firing	3423-3	12	Nipple, 1-1/4” w/Tapping	86505-32
4	Pipe Plug	3348	13	Nipple, 1-1/4”	86505-6
5	Switch, Low Gas Pressure	191149-3	14	Nipple, 1-1/4”	86505-4
6	Nipple, 1-1/4”	86505-13	15	Tee, 1/8” NPT Branch	192465
7	Nipple, 1-1/4”	86505-2	16	Connector, Angle 1/8”	1578
8	Nipple, 1-1/4”	86505-17	17	Bleeder, Tube	210016
9	Elbow, Union 1-1/4”	86506	18	Bleeder, Tube	192461
			19	Nipple, Close Stainless	191772-1
			20	Orifice, Union	See Orifice Table Below

LB/LW 1000 ORIFICE TABLE

Propane Gas	Size (In.)	Elevation (Ft.)
192739	0.333	0 - 2000
192739-1	0.329	2001 - 3000
192739-2	0.325	3001 - 4000

		LB/LW BY-PASS PARTS LIST - MODEL 1000
On LB models the circulating pump must be between
	Item	Description	Part No.
the boiler inlet and the bypass (see figure below).
LW models have pump mounted inside the jacket.
Please update these numbers	1	Ball Valve	191935
	*2	Tank/Pump Kit (LW Models)	210625
	3	Hex Reducing Bushing (LB Model)	91940-8
	4	Flush Bushing (LB Model)	192163-2
	5	Relief Valve (LW Model)	98883-3
	........	Relief Valve (LB Model)	210451-2
	6	Strap, Cable (not shown)	99592-2
	7	Tee, Condensate	192040-1
	8	Tee (For use w/relief valve):
	...............	LW Model	78685-4
	...............	LB Model	191584
	9	Tee 2"x2"x2"	191584
	10	Tee 2"x2"x3/4"	78685-4
	11	Valve, Drain	26273
	12	Valve, Manual Shutoff	3423-3
	13	Vent Patch Assembly	192161
	14	Nipple (For use w/relief valve)
	...............	LW Model	20373-12
	...............	LB Model	92706-4
	15	Clamp, Hose	191794-1

*Item Not Illustrated.

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