Weil-McLain WMBC-1A manual Installation, ToiAN ToiAP ToiAS ToiAV ToiAFD ToiAFF ToiAFG

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LGB (Series 2) — Control Supplement

I Installation

Table 1

Pilot burner and flame sensor locations

1.For use with LGB-6 through 12 boilers.

2.LOCAL INSPECTOR MUST CERTIFY BOILER FOR IRI COMPLIANCE.

3.Assemble pilot burner and flame sensor to main burners with pilot brackets. See Figures 2 and 3. Install ground wiring as shown in Figures 2 and 3.

4.Reinstall burner assemblies. See Table 1 for pilot burner and flame sensor locations.

5.Assemble control panel to boiler. See Figure 1.

6.Install gas controls as shown in Figure 4, page 4.

7.IRI installations require manual reset controls. Weil-McLain recommends installing manual controls in addition to standard as required by local inspector. Refer to the LGB Boiler Manual,“Boiler Controls” section.

a.Steam boilers require a manual reset Low Water Cutoff and manual reset Pressure Limit Control.

b.Water boilers require a manual reset Low Water Cutoff and manual reset Temperature Limit Control.

Boiler Model

Flame Sensor *

Pilot Burner *

 

 

 

toiAN

2

9

toiAP

2

11

toiAS

2

13

 

 

 

toiAV

2

15

toiAFD

2

16

 

 

 

toiAFF

2

16

toiAFG

2

16

 

7 n

 

 

 

 

 

 

 

Figure 1

Mount control panel to jacket as shown

Panel

Front of

 

Boiler

 

Drill (3) Holes in Front

Drill (7) 1/8“ Holes In Jacket to Mount Bracket

Drill (4) Holes in Side

55BGL

2

Part Number 550-141-807/0298

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Contents Contents IRIInstallation ToiAN ToiAP ToiAS ToiAV ToiAFD ToiAFF ToiAFGFlame Guardian WMBC-1A Electronic Pilot System IRI GAS Piping Diagram LGB Series IRI Gas Train III Wiring Gas pipingWMBC-1A panel wiring schematic WMBC-1A panel wiring diagram factory wiring WMBC-1A field wiring diagram IV Start-up Sequence of operation VI Parts list Table Aut w

WMBC-1A specifications

The Weil-McLain WMBC-1A is a highly efficient and versatile boiler designed for residential and commercial heating applications. This innovative model stands out due to its robust construction, advanced technology, and user-friendly features, making it a popular choice among engineers and homeowners alike.

One of the main features of the WMBC-1A is its exceptional efficiency. With an Annual Fuel Utilization Efficiency (AFUE) rating that often exceeds 90%, this boiler operates cost-effectively while minimizing energy consumption. This high efficiency translates into lower utility bills and a reduced carbon footprint, aligning with the growing demand for sustainable heating solutions.

The WMBC-1A utilizes a cutting-edge modulating burner technology that allows the boiler to adjust its output to match the heating demand of the home. This capability ensures optimal performance and comfort, as the system can ramp up or down depending on the current heating needs. This feature also contributes to the boiler’s efficiency, as it prevents the energy waste that often accompanies traditional systems.

Durability is a hallmark of the Weil-McLain WMBC-1A. Constructed from high-quality cast iron, the boiler is designed to endure the rigors of repeated heating cycles and offers a long service life. The unit is also equipped with aluminum heat exchangers that are lightweight yet robust, allowing for efficient heat transfer and quicker response times.

The WMBC-1A also prioritizes safety and ease of use, featuring integrated safety controls and diagnostics that help monitor performance and troubleshoot potential issues. Additionally, the user-friendly digital control system allows homeowners to easily adjust settings and monitor energy usage, ensuring they can maintain comfort without sacrificing efficiency.

With its compact design, the WMBC-1A is suitable for a variety of installation spaces. Its versatility extends to compatibility with various heating systems, including radiators and in-floor heating systems. This flexibility allows users to tailor the system to their specific needs and preferences.

In summary, the Weil-McLain WMBC-1A is a top-tier boiler that combines efficiency, durability, and advanced technology. With its modulating burner, high AFUE rating, safety features, and compatibility with diverse heating systems, it offers exceptional performance for both residential and commercial applications. Its reputation for reliability makes it a smart investment for those looking to enhance their heating systems while promoting energy savings.
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