Boiler Manual

boiler-bypass (alternate) piping —

for radiant heating or converted gravity systems

Figure 10 Boiler-bypass piping

Zoning with circulators

(Alternative to primary/secondary piping Figures 8 and 9)

 

ZONE 2

 

ZONE 1

1

1

 

2

 

4a

 

4b

3

 

2

 

 

 

 

 

 

 

6

1

13 1

6

 

 

 

 

 

7a

8

 

 

 

 

 

 

 

 

7b

 

 

11

9

10

 

Cold

 

 

 

water

 

 

 

 

fill

 

 

 

 

 

12

 

 

 

26016

 

 

 

 

Figure 11 Boiler-bypass piping

Zoning with zone valves

(Alternative to primary/secondary piping Figures 8 and 9)

 

 

ZONE 2

 

 

 

 

ZONE 1

 

 

 

1

 

 

1

 

 

 

4b

5

 

6

Alternate

6

13

 

 

 

 

circulator

 

 

 

 

location

 

 

 

 

7a

8

 

 

 

 

 

 

 

7b

 

 

 

4a

9

10

 

 

 

 

 

Cold

11

 

 

 

water

 

 

 

 

fill

 

 

 

 

 

12

3

 

 

 

 

 

 

26017

 

 

 

 

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 manual Boiler-bypass alternate piping

550-110-260/02002 specifications

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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.