Weil-McLain 550-110-260/0508 manual Figures 8

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GOLD CGs Gas-Fired Water Boiler — Boiler Manual

3d Piping — low temp systems (continued)

Figure 10 Boiler-bypass piping

Figure 11 Boiler-bypass piping

Zoning with circulators

Zoning with zone valves

Alternative to primary/secondary piping

(Alternative to primary/secondary piping

Figures 8 and 9)

Figures 8 and 9)

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

10Automatic air vent (with diaphragm-type expan- sion 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 wa- terlogging 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, page 15.)

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 550-110-260/0508

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Contents Gold CGs How it works Gold CGs Gas-Fired Induced-Draft Water Boiler Contents Installer Please read before proceedingUser 1a Prepare boiler location codes & checklist Installations must follow these codesBefore locating the boiler, check the following 1b Prepare boiler location clearances 1c Prepare boiler location vent system When removing boiler from an existing common vent systemCGs special vent system Vent systemProducts to avoid 1d Prepare boiler location contaminationCombustion air options 1e Prepare boiler location air openingsSizing air openings Special considerationsSizing air openings for CGs installations Oriﬁce replacement procedure 2a Prepare boiler placement & setupPlace boiler/crate near position Inspect oriﬁces and burnersHydrostatic pressure test 2b Prepare boiler pressure testDrain and remove ﬁttings Prepare boiler for test3a Water piping general information 3b Water piping single-zone system Piping multiple zones 3c Water piping multiple zones3c Water piping multiple zones Valve adjustment Figures 8 and 9 only Temperature gauges3d Piping low temp systems Primary/secondary preferred bypass piping method3d Piping low temp systems BOILER-bypass piping method Valve adjustmentFigures 8 SYSTEM-bypass piping method 3e Water piping refrigeration systems Prevent chilled water from enteringBoiler Use direct vent sealed combustion if combustion air Venting and combustion airGas piping Connecting gas supply piping to boilerNatural Gas Propane GasElectrical installation must comply with Field wiringWiring connections Thermostat7a Start-up preparation Freeze protection when usedCheck for gas leaks Verify water chemistryInspect system water piping Inspect base insulation 7b Start-up operate boilerFinal check before starting boiler Start the boilerCheck burner ﬂames 7c Start-up if boiler doesn’t startCheck for Pilot burner ﬂame FigureInstallation and service certiﬁcate Check-out procedure checklist9a Operation sequence Schematic wiring diagram 9b Operation wiring diagramsLadder wiring diagram 9c Operating instructions CGs-3 to CGs-6 9c Operating instructions CGs-3 to CGs-6 9c Operating instructions CGs-3 to CGi-6 Verify Proper Operation After Servicing 10a Service and maintenance schedule10b Service & maintenance annual start-up Condensate drain system Burners, base and inlet air box Inducer motorOiled-bearing circulators 10b Service & maint. annual start-up Relief valve, typical Boiler relief valveReview with owner Cleaning boiler heating surfaces11a Troubleshooting procedure Before troubleshootingCheck the following Air pressure switch 11b Troubleshooting air pressure switchCheck pressure switch setting Troubleshooting air pressure readingControl indicator lights Lockout modes 11c Troubleshooting control moduleControl indicator lights NON-LOCKOUT modes Troubleshooting the control moduleControl module connections Chart 1 Troubleshooting Power light status 11d Troubleshooting control module lightsChart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Chart 4 Flame & Power lights flashing Item 8 , Does blower motor operate? Verify Sequence of operation, , Section assembly Base Jacket Trim Controls 12a Replacement partsItem number Description Weil-McLain part number 12b Replacement parts section assemblyPage Description Weil-McLain Part number 12c Replacement parts baseJacket assembly 12d Replacement parts jacketBoiler Model Weil-McLain part number Part number 12e Replacement parts trimPropane gas components 12f Replacement parts controlsDimensional drawing 13a DimensionsDOE 13b RatingsRemoval of Combustion Chamber Lining or Base Panels Handling ceramic ﬁber and ﬁberglass materials

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.