LB/LW WATERWAYS & COMBUSTION CHAMBER PARTS LIST

Item

Description

Model 500

Model 750

Model 1000

1

Bracket

191602

191602

191602

2

Burner and Cone Assembly

191850

191850-1

191850-2

3

Combustion Chamber Assembly

191529-2

191529-3

192129-1

4

Connector, Hose

191765

191765

191765

5

Coupling, Flexible w/Gasket

191780

191780

191780-1

6

Cover, Outer

210408

210408

210404

7

Gasket, Outer

211594-1

211594-1

211594-1

8

Gasket, Burner

191564-1

191564-1

191564-1

9

Gasket, Inner

211594

211594

211594

10

Housing Assembly

211742

211742-1

211742-2

11

Ignitor

192334

192334

192334

12

Insulation, Burner

191618

191618

191618

13

Nut, Manifold

191555

191555

191555-1

14

O-Ring

191556

191556

191556-2

15

Probe, Outlet Temp./ECO

210572

210572

210572

16

Probe, Inlet Temp

210571

210571

210571

17

Screw, Machine #8-32, 3/8" Long, SST

210444

210444

210444

18

Screw, Machine #8-32, 1" Long SST

191770

191770

191770

*19

Sealer, Silicone Hi-Temp

191482-1

191482-1

191482-1

20

Sensor, Flame

210421

210421

210421

21

Spacer Ring

191554

191554

191554-1

22

Switch, Safety Flow

211480

211480

211480

23

Tee Assembly

191583

191583

192387

24

Tube Assembly, Primary (LW Models)

210900

210900

192388

24

Tube Assembly, Primary (LB Models)

210901

210901

192225

25

Tube Assembly, Outlet

210425

210425

210426

26

Tube Assembly, Secondary

210912

210912

192386

27

Washer, Flat #8 SST

191768

191768

191768

28

Restrictor-Air, Top Cover

191926-1

191926-1

191926-1

*Item Not Illustrated.

Note: Replacement housing assemblies (item 10) are currently all steel type. When replacing the housing assembly both the inner gasket (item 9) and outer gasket (item 7) must also be replaced. In addition, high temperature silicone sealant (item 19) is required to fix the gaskets to the surfaces.

The Tub Replacement Kit is available for replacing housing assemblies. When ordering use p/n 211742 for LB/LW 500 models, p/n 211742-1for LB/LW 750 models and p/n 211742-2for LB/LW 1000 models.

LW Models

LB Models

2

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A.O. Smith LB/LW: 500, 750 & 1000 manual LB/LW Waterways & Combustion Chamber Parts List

LB/LW: 500, 750 & 1000 specifications

A.O. Smith is a renowned name in the water heating and treatment industry, and their models, including the 750 and 1000, LB/LW: 500, showcase the company's commitment to innovation and efficiency. These water heaters are designed for both residential and commercial applications, combining advanced technology with practical features that enhance performance and usability.

One of the standout characteristics of the A.O. Smith 750 and 1000 models is their high efficiency. Both units are equipped with cutting-edge insulating materials that minimize heat loss, ensuring energy consumption is kept to a minimum. This efficiency not only helps reduce utility bills but also contributes to a smaller carbon footprint, making them a greener choice for consumers.

In terms of technology, these models are designed with advanced control systems that allow for precise temperature regulation. The intuitive digital interface is user-friendly, enabling users to easily adjust settings according to their needs. This feature is particularly valuable in commercial settings where hot water demands can vary significantly throughout the day.

The durability of the A.O. Smith 750 and 1000 water heaters is another notable advantage. Built with high-quality materials, these units are designed to withstand the rigors of regular use. The heating elements are protected from corrosion, and the tanks are designed to resist sediment buildup, which can prolong the lifespan of the units.

Safety is a priority in the design of these water heaters. Both models come with multiple safety features, including automatic shut-off systems and temperature control mechanisms, ensuring peace of mind for users. The LB/LW: 500 designation signifies the specific capacity and wattage options available, catering to a variety of hot water needs.

Another feature that sets A.O. Smith apart is the focus on maintenance. These heaters are designed for easy access to key components, simplifying routine maintenance procedures. Regular upkeep is essential for maintaining performance, and this thoughtful design aspect makes it easier for technicians to service the units.

In summary, the A.O. Smith 750 and 1000, LB/LW: 500 models exemplify modern water heating technology. With their high efficiency, advanced controls, durable construction, and safety features, they are sound investments for any household or business. These characteristics not only enhance user experience but also ensure long-term reliability, making A.O. Smith a trusted choice in the water heating market.