Boiler Manual

primary/secondary (preferred) bypass piping —

for radiant heating or converted gravity systems

Figure 8

Zoning with circulators

 

ZONE 2

 

ZONE 1

1

1

 

2

 

 

4a

12"

4b

3

 

2

 

 

 

 

MAX.

 

1

 

 

 

 

 

 

6

1

13

6

 

 

 

7b

 

 

 

7a

 

 

 

 

8

 

Alternate

 

 

 

 

circulator

 

 

 

 

 

location

 

 

 

11

9

10

 

Cold

 

 

 

 

water

 

 

 

 

 

fill

 

 

 

 

 

 

 

12

 

 

 

Figure 9

Zoning with zone valves

ZONE 2

ZONE 1

1

1

4a

12"

4b

 

5

 

 

 

3

 

 

MAX.

 

 

 

6

1

13

1

6

 

 

7b

 

 

 

7a

Alternate

 

 

 

8

 

 

 

 

 

circulator

 

 

 

 

 

location

 

 

 

11

9

10

 

 

Cold

 

 

 

 

water

 

 

 

 

 

fill

 

 

 

 

 

 

12

 

 

 

 

26014

26015

1Boiler isolation (balancing) valves

2Flow/check valve

3System or zone circulator

4System temperature gauges

5Zone valve

6Drain valve

7System temperature valves (see instructions to the left for adjusting valves)

8Blend temperature gauge

9Relief valve

10 Automatic air vent (with diaphragm-type expansion tank), or connect to tank fitting (closed-type expansion tank). DO NOT use an automatic air vent when using closed-type expansion tank. It would allow air to leave the system, causing waterlogging of the expansion tank.

11Fill valve

12Diaphragm-type or bladder-type expansion tank, if used (For closed-type expansion tank, pipe from top of air separator to tank fitting as in Figure 5.)

13Air separator and automatic vent, if used (Note that the fill valve must always be connected to the expansion tank, regardless of location of expansion tank, circulator or air separator.)

Part number 550-110-260/0200

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Weil-McLain 550-110-260/02002 Primary/secondary preferred bypass piping, For radiant heating or converted gravity systems

550-110-260/02002 specifications

Weil-McLain is a well-known manufacturer of high-quality heating systems and boiler solutions, and the 550-110-260/02002 model is a testament to the company's commitment to innovation and performance. This particular boiler is designed for commercial and residential applications, providing exceptional heating efficiency and reliability.

One of the standout features of the Weil-McLain 550-110-260/02002 is its robust construction. Built using durable materials, this boiler is engineered to withstand demanding environments while maintaining optimal performance. The unit boasts a high thermal efficiency rating, which translates to lower energy costs and reduced environmental impact. The advanced design ensures that fuel consumption is minimized while delivering consistent heat output.

The Weil-McLain 550-110-260/02002 utilizes a multi-stage burner that enhances combustion efficiency. This feature not only reduces emissions but also improves overall energy use, making it an environmentally friendly choice. The sophisticated control system allows for precise modulation of the burner, ensuring that the boiler operates at peak efficiency under various load conditions.

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In conclusion, the Weil-McLain 550-110-260/02002 is a high-performance boiler that combines durability, efficiency, and advanced technology. With its robust construction, efficient burner system, and user-friendly controls, it stands out as a reliable heating solution for both commercial and residential applications. The commitment to quality and innovation makes this model a preferred choice for those seeking dependable heating systems. Whether for new installations or replacements, the Weil-McLain 550-110-260/02002 delivers exceptional performance and value.