LB/LW PROPANE GAS TRAIN ASSEMBLY - MODEL 750

 

 

 

Item

Description

Model 750 Item

Description

 

Model 750

1

Valve, Main Gas

77780

12

Nipple, 1-1/4"

 

86505-3

 

2

Regulator, LP

192460

13

Nipple, 1-1/4"

 

86397-11

 

3

Valve, Manual Shut-Off

3423-3

14

Nipple, 1-1/4"

 

86505-4

 

4

Pipe Plug

3348

15

Tee, 1/8"

 

192465

 

 

5

Switch, Low Gas Pressure

191149-3

16

Connector, Angle 1/8"

 

1578

 

 

6

Nipple, 1-1/4"

86505-8

17

Bleeder, Tube

 

210016

 

 

7

Nipple, 1-1/4

86505-2

18

Bleeder, Tube

 

192461

 

 

8

Nipple, 1-1/4"

86505-10

19

Bushing, 1" x 1-1/4"

 

99376

 

 

9

Elbow, Union ,1-1/4"

86506

20

Nipple, Close Stainless

 

191772

 

 

10

Elbow, 90° Street , 1-1/4"

94516

21

Orifice, Union

See Orifice Table Below

11

Elbow, 90°, 1-1/4"

192216

 

 

 

 

 

 

 

 

 

 

 

 

LB/LW 750 ORIFICE TABLE

 

 

 

 

 

Propane Gas

Size (In.)

Elevation (Ft.)

 

 

 

 

 

 

192741-3

0.286

0 - 2000

 

 

 

 

 

 

 

192741-5

0.282

2001 - 3000

 

 

 

 

 

 

 

192741-7

0.278

3001 - 4000

 

 

On LB models the circulating pump must be between the boiler inlet and the bypass (see figure below). LW models have pump mounted inside the jacket.

Please update these numbers

LB/LW BY-PASS PARTS LIST - MODEL 750

Item

Description

Model 750

 

 

 

1

Ball Valve

191935

2

Hex Reducing Bushing LW Models

 

.....

(for use w/Relief Valve)

91940-1

3

Relief valve:

 

.....

LB Model

210451-1

.....

LW Model

98883-3

4

Tee, 2" x 2" x 1"

78685-2

5

Tee, 2"

191584

6

Tee, 2" x 2" x 2"

78685-4

7

Valve, Drain

26273

*8

Valve, Manual Shutoff

3423-3

*9

Orifice, Gas Assembly (See Orifice Table)

 

*10

Tube, Condensate

191746-120

*11

Strap, Cable

99592-2

*Item Not Illustrated.

9

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A.O. Smith LB/LW 1000 manual 86505-3, 86397-11, 86505-4, 192465, 1578, 210016, 192461, 99376, 286, Valve, Manual Shutoff

LB/LW 1000, LB/LW 500, LB/LW 700 specifications

A.O. Smith, a leader in water heating technology, offers an array of high-efficiency products designed for various residential and commercial applications. Among their esteemed product lineup are the LB/LW 700, LB/LW 500, and LB/LW 1000 models, each showcasing advanced features and sophisticated technologies.

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