GOLD CGs Gas-Fired Water Boiler — Boiler Manual

7b Start-up — operate boiler (continued)

If you discover evidence of any gas leak, shut down the boiler at once. Find the leak source with bubble test and repair immediately. Do not start boiler again until cor- rected. Failure to comply could result in severe personal injury, death or substantial property damage.

Check burner flames

View pilot and main flames through the inspection port in the Air inlet box front cover.

Pilot burner flame (Figure 16)

PROPER pilot flame characteristics

1.Blue flame.

2.Inner cone engulfing pilot flame sensor.

3.Pilot flame sensor glowing cherry red.

IMPROPER pilot flame characteristics:

1.Overfired — Large flame lifting or blowing past pilot flame sensor.

2.Underfired — Small flame. Inner cone not engulfing pilot flame sensor.

3.Lack of primary air — Yellow flame tip.

4.Incorrectly heated pilot flame sensor.

Figure 16 Typical pilot burner flame

Spark

Inner

cone

electrode

 

Pilot flame sensor

26023

Figure 17 Typical main burner flame

Main burner flame (Figure 17)

PROPER main burner flame characteristics

1. Yellow-orange streaks may appear (caused by dust).

IMPROPER main burner flame characteristics

1. Overfired — Large flames.

2. Underfired — Small flames.

3.Lack of primary air — Yellow tipping on flames (sooting will occur).

7c Start-up — if boiler doesn’t start . . .

Check for:

1.Loose connections, blown fuse or service switch off?

2.High limit switch set below boiler water tempera- ture?

3.Thermostat set below room temperature?

4.Gas not turned on at meter or boiler?

5.Incoming gas pressure less than: 5” w.c. for natural gas?

11” w.c. for propane gas?

6.If none of the above corrects the problem, refer to Troubleshooting, Section 11 of this manual.

Part number 550-110-260/0508

29

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Weil-McLain 550-110-260/0508 7c Start-up if boiler doesn’t start, Check burner flames, Check for, Pilot burner flame Figure
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550-110-260/0508 specifications

Weil-McLain is a well-known name in the heating industry, offering a wide range of high-quality boilers and heating systems. Among its impressive lineup, the Weil-McLain 550-110-260/0508 model stands out for its performance, efficiency, and advanced technologies, making it suitable for residential and commercial heating applications.

The 550-110-260/0508 boiler is designed for flexibility and performance, providing an output capacity of 110,000 BTU per hour. This makes it suitable for various heating needs, from single family homes to larger commercial spaces. One of the key features of this model is its high-efficiency design, which allows it to operate at an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%. This means that a significant portion of the fuel consumed is converted into usable heat, resulting in lower energy bills and reduced environmental impact.

A standout characteristic of the Weil-McLain 550-110-260/0508 is its durable construction. Built with high-quality materials, this boiler is designed to withstand the rigors of daily use and provide reliable service over the years. Additionally, the unit features a compact design, allowing for easy installation in various configurations, whether it be in a basement, utility room, or outdoor setting.

Another impressive technology incorporated in this model is the advanced control system, which allows for precise temperature management and improved energy efficiency. The intuitive control interface enables homeowners and facility managers to easily set and adjust heating schedules, ensuring optimal comfort while minimizing energy consumption.

Safety is also a top priority for Weil-McLain. The 550-110-260/0508 is equipped with multiple safety features, including a pressure relief valve, limit controls, and a low water cutoff, which help to ensure safe and reliable operation.

In conclusion, the Weil-McLain 550-110-260/0508 model boasts a combination of efficient heating, durable construction, advanced control technology, and safety features, making it an excellent choice for those seeking a reliable and effective heating solution. Its versatility and performance make it well-suited for a variety of applications in both residential and commercial settings.
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