Weil-McLain 550-110-260/0508 manual 11d Troubleshooting control module lights

Page 47

GOLD CGs Gas-Fired Water Boiler — Boiler Manual

11d Troubleshooting — control module lights

CHART 1 — Troubleshooting POWER light status

— Usually indicates reversed 120 VAC polarity if POWER light flashes by itself —

Electrical shock hazard — Wherever you see ▲TURN OFF POWER ▲, follow the instructions. Failure to follow instructions could result in severe personal injury, death or substantial property damage.

 

 

 

Is POWER light off?

 

 

 

 

 

 

• Make sure service switch or circuit breaker is on or fuses

 

 

 

 

 

 

 

 

 

 

 

 

are good.

 

 

 

 

No

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Remove 120 VAC IN plug (Figure 25, item 3,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

page 46) on control module.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Using voltmeter, check across top and bottom pins of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120 VAC IN plug.

 

 

 

 

 

Is POWER light...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does voltmeter indicate 120 VAC?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flashing

Flashing with

 

On steady

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

alone

another light

 

(not flashing)

 

 

 

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TSTAT CIRC

 

Chart 2

 

 

 

 

 

 

Problem is with incoming

 

 

 

 

 

light flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

electricity. Have licensed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRESS SWITCH

 

Chart 3

 

Chart 5

 

 

 

electrician repair circuit.

 

 

 

 

 

light flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLAME

 

Chart 4

 

Chart 6

 

 

 

• Reconnect 120 VAC IN plug.

 

 

 

 

light flashing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Remove 120 VAC transformer PRIMARY plug

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For insufficient heat or no heat problem, go to

 

 

 

(Figure 25, item 2, page 46) on control module.

 

 

 

 

 

• Using voltmeter, check across top and bottom pins of

 

 

Chart 7 if POWER light is on steady, with no other

 

 

 

 

 

 

 

 

PRIMARY receptacle.

 

 

 

 

light flashing.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Does voltmeter indicate 120 VAC?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•Usually indicates polarity on incoming 120 VAC power line is wrong.

•▲ TURN OFF POWER ▲ at service switch or breaker, then reverse the HOT and NEUTRAL wires entering the boiler in the J-box.

•Restore POWER at service switch or breaker.

Is POWER light flashing now?

No

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

Have system checked by a

 

 

 

licensed electrician.

 

 

 

If problem persists, call your

 

 

 

Boiler should now

 

local Weil-McLain sales

operate normally.

 

representative.

 

 

 

 

 

Replace control module.

Retest.

•Reinstall 120 VAC transformer PRIMARY plug.

•Remove 24 VAC transformer plug (Figure 25, item 5, page 46) on control module.

•Using voltmeter, check across pins of receptacle.

Does voltmeter indicate 24 VAC?

No

Yes

 

 

 

 

Replace transformer.

 

Replace control module.

Retest.

 

Retest.

 

 

 

Part number 550-110-260/0508

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Page 46 Page 48
Contents Gold CGs How it works Gold CGs Gas-Fired Induced-Draft Water Boiler Contents User InstallerPlease read before proceeding Before locating the boiler, check the following 1a Prepare boiler location codes & checklistInstallations must follow these codes 1b Prepare boiler location clearances Vent system When removing boiler from an existing common vent system1c Prepare boiler location vent system CGs special vent systemProducts to avoid 1d Prepare boiler location contaminationSpecial considerations 1e Prepare boiler location air openingsCombustion air options Sizing air openingsSizing air openings for CGs installations Inspect orifices and burners 2a Prepare boiler placement & setupOrifice replacement procedure Place boiler/crate near positionPrepare boiler for test 2b Prepare boiler pressure testHydrostatic pressure test Drain and remove fittings3a Water piping general information 3b Water piping single-zone system Piping multiple zones 3c Water piping multiple zones3c Water piping multiple zones Primary/secondary preferred bypass piping method Temperature gaugesValve adjustment Figures 8 and 9 only 3d Piping low temp systems3d Piping low temp systems BOILER-bypass piping method Valve adjustmentFigures 8 SYSTEM-bypass piping method Boiler 3e Water piping refrigeration systemsPrevent chilled water from entering Use direct vent sealed combustion if combustion air Venting and combustion airPropane Gas Connecting gas supply piping to boilerGas piping Natural GasThermostat Field wiringElectrical installation must comply with Wiring connectionsVerify water chemistry Freeze protection when used7a Start-up preparation Check for gas leaksStart the boiler 7b Start-up operate boilerInspect system water piping Inspect base insulation Final check before starting boilerPilot burner flame Figure 7c Start-up if boiler doesn’t startCheck burner flames Check forInstallation 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 Oiled-bearing circulators Condensate drain system Burners, base and inlet air boxInducer motor 10b Service & maint. annual start-up Relief valve, typical Boiler relief valveReview with owner Cleaning boiler heating surfacesCheck the following 11a Troubleshooting procedureBefore troubleshooting Troubleshooting air pressure reading 11b Troubleshooting air pressure switchAir pressure switch Check pressure switch settingTroubleshooting the control module 11c Troubleshooting control moduleControl indicator lights Lockout modes Control indicator lights NON-LOCKOUT modesControl 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.
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