Weil-McLain LGB-16, LGB-7, LGB-14, LGB-8, LGB-20, LGB-13 VI Parts list U.S. boilers, Parts drawing

Page 9

LGB-6 to LGB-23Series 2 – Control Supplement

VI Parts list - U.S. boilers

Figure 5

U.S. parts drawing

x tD g

 

 

y

v t

 

Cs v t

 

 

 

 

 

 

 

 

 

 

8

dy y

 

 

WCD

 

C884E9B49EB

 

9

dy –

–y½

o4d½cy

 

 

C89497747CC

 

dy y –y½

o4d½cy

 

 

B9A4A774B97

 

 

 

 

 

A

dy 4

 

 

 

8(

b½4Qy C77

 

C8849BD4A9C

 

 

 

1 ¼"

b½4Qy D77

 

C8849BD4AA7

 

 

 

 

 

 

B

k½yy

 

 

 

8(

WAP877A

C8847BB48G8

 

 

 

1 ¼"

WAP8888

C8847BB48G9

 

 

 

 

 

C

dy y

 

 

 

8(

WBc87AA

C8847BB4ABD

 

 

 

1 ¼"

WBc87B8

C8847BB498F

 

 

 

 

 

D

g –3 y

 

4y y

o4d½cy

 

AFA4A774B87

E

g –3 ½4

 

o4d½cy

 

 

AFA4A774B88

F

dy –

–y½

o4d½cy

 

C89497747CC

g – –y½

 

o4d½cy

 

BD7477C4D9B

 

 

 

G

mRk ½

 

 

 

 

WFD97R877A

 

C884AA747GE

/9 ½

 

 

 

 

m l 877A4C88

 

 

 

 

 

 

 

 

87

g

 

 

 

 

WDR878B

 

C8847BB47AG

 

 

 

 

a RWG8PQV

 

 

 

 

 

 

 

 

 

88

g 4 y

 

 

b½4Qy g9i

 

C8849BD4AB7

89

g ½ –

 

 

a RcD9VQ4AR

C884AA7499G

8A

 

BF(

WA7GP

 

C884E9B49BC

8B

W

y ½

 

WDBCQ878A

 

C884D9B4CCC

8C

Pilot tubing, alum. ¼ O.D. x .032-20" long

Py c½y kW

 

 

8D

Pilot tubing, alum. ¼ O.D. x .032-60" long

 

 

8E

Pressure switch tubing, alum. ¼ O.D. x .032-100" long

 

 

 

1R ½y o4d½cy¼–y

½y½ y–

 

 

 

 

 

10

Part Number 550-141-797/0798

Image 9
Contents LGBGas-fired boiler Gas control arrangement New installationMain flame sensor assembly Pilot burner assembly, typicalLGB-6 to LGB-23Series 2 Control Supplement III Gas piping IV WiringWiring diagram Junction box assembly dual base boilers IV WiringStarting boiler Operating instructionsParts drawing VI Parts list U.S. boilersCanadian parts drawing VII Parts list Canadian boilersWeil-McLain Blaine Street Michigan City,

LGB-19, LGB-6, LGB-8, LGB-11, LGB-7 specifications

Weil-McLain's LGB series of cast iron boilers, including models LGB-10, LGB-9, LGB-8, LGB-18, and LGB-15, are renowned for their efficiency, durability, and reliable performance in commercial and industrial heating applications. These boilers are designed to meet a broad range of heating demands, making them a popular choice among professionals in the HVAC industry.

One of the main features of the LGB series is its sectional cast iron design. This allows for superior heat retention and efficient heat transfer, ensuring minimal energy loss throughout the heating process. The cast iron construction also provides exceptional durability, allowing these boilers to withstand high operating pressures and prolonging their lifespan compared to other materials.

The LGB series employs an advanced burner system that enhances combustion efficiency. The gas-fired models are equipped with a power burner that ensures precise fuel-to-air ratios, resulting in optimal combustion and reduced greenhouse gas emissions. Additionally, Weil-McLain boilers are designed to operate quietly, making them suitable for use in noise-sensitive environments.

A significant technological advancement in these models includes their electronic ignition systems, which eliminate the need for pilot lights, thereby increasing safety and reducing energy consumption. This technology also contributes to the overall ease of operation. The series features a wide range of firing rates, enabling users to adjust the boiler’s output according to specific heating requirements.

The LGB-10, LGB-9, LGB-8, LGB-18, and LGB-15 models are available with various options such as built-in draft diverters and low water cut-off features to enhance safety and performance. Moreover, these boilers are compatible with different types of heating systems, including hot water and steam applications, making them versatile for a variety of installations.

In terms of efficiency, the Weil-McLain LGB series typically achieves an Annual Fuel Utilization Efficiency (AFUE) rating that meets or exceeds industry standards, ensuring lower operational costs and energy savings for consumers. This combination of features, technologies, and characteristics makes the Weil-McLain LGB series an exceptional choice for those looking for reliable and efficient heating solutions in demanding applications.