Appendix

CONTINUED

To provide close clearances as described in pages 26 and 27, Close Clearance Kit,

W-M Part No. 386-500-050, must be obtained and installed as described below. Failure to use kit or install as described can result in a fire hazard, causing severe personal injury, death or substantial property damage.

Close clearance installation:

Substitute these instructions for corresponding material in manual. All other procedures and practices must remain the same.

Recommended service and minimum clearances shown on page 4 should be used where possible. Where closer clearances are required:

•Top of boiler — If less than 24" available, provide removable surface to allow for cleaning boiler flueways.

•Right or left side — Minimum 2 inches.

•Front — Minimum 2 inches from burner.

•Doublewall flue pipe to combustible surface — as listed in Table on page 27 and FIGURES 19 through 21.

Jacket cap must be in place on boiler to avoid requiring an 18"

minimum clearance from back or top of boiler to combustible material. Flue pipe clearances must take precedence over jacket clearances.

1.Install boiler using clearances described at left.

2.Install barometric control 18-20 inches from boiler in breeching.

3.Attach manual reset temperature switch near upper surface of enclosed area. See FIGURE 17.

4.Wire switch in series with thermostat. See FIGURE 18.

5.Provide two combustion/ventilation openings when installing in confined space. Size opening 140 sq. in. (1000 Btu) per 1 GPH input. Locate openings near top and bottom of enclosed space.

Combustible

Surface

Manual Reset

Temperature Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#6 x ½" Phil.

 

 

 

 

 

 

 

 

 

 

 

 

 

44156

1 to 5

 

 

 

Sht. Mtl. Screw

 

 

inches

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thermostat

 

 

 

 

 

 

 

 

 

 

 

Manual

#10 x ½" Phil. Sht. Mtl. Screw

Reset Bracket

Temperature

Switch

Area Above Boiler

Manual Reset Temperature Switch Location

Manual Reset Temperature Switch Wiring

FIGURE 17

FIGURE 18

26

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Page 26
Image 26
Weil-McLain 550-141-826/1201 manual Close clearance installation
Page 25 Page 27

550-141-826/1201 specifications

The Weil-McLain 550-141-826/1201 is a high-efficiency boiler designed for commercial applications, providing unmatched performance, reliability, and advanced technology features. This model is specifically engineered to cater to a range of heating needs, making it suitable for various settings, such as schools, hospitals, and large commercial spaces.

One of the key features of the Weil-McLain 550-141-826/1201 is its impressive thermal efficiency. With a high AFUE (Annual Fuel Utilization Efficiency) rating, this boiler maximizes energy usage, resulting in lower utility costs for end-users. The efficient performance not only translates to better energy savings but also contributes to a reduced carbon footprint, aligning with modern sustainability goals.

The powerful burner technology incorporated in the Weil-McLain 550-141-826/1201 ensures precise control over the combustion process. This results in consistent heating performance and minimizes emissions, meeting stringent environmental regulations. The unit utilizes advanced modulation technology, which allows the burner to adjust its output according to the demand, providing significant energy savings and enhanced comfort.

Another standout characteristic of this boiler is its robust construction. Built with high-quality materials, the Weil-McLain 550-141-826/1201 is designed to endure demanding conditions, ensuring longevity and reduced maintenance needs. The boiler features a durable heat exchanger, which optimizes thermal transfer efficiency while resisting corrosion and thermal stress.

The user-friendly controls and monitoring systems enhance the operational experience, allowing for easy adjustments and status checks. The integrated diagnostic capabilities provide valuable insights for troubleshooting, making maintenance straightforward and reducing downtime.

Furthermore, the versatility of the Weil-McLain 550-141-826/1201 allows for multiple installation configurations, accommodating different system requirements and space limitations. Its compact design makes it an ideal choice for facilities where space is a premium.

In summary, the Weil-McLain 550-141-826/1201 stands out in the commercial boiler market with its high efficiency, innovative burner technology, robust construction, user-friendly controls, and versatile installation options. This model exemplifies Weil-McLain's commitment to energy-efficient heating solutions, setting a benchmark for performance and reliability in the industry.
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