GOLD CGs Gas-Fired Water Boiler — Boiler Manual

11d Troubleshooting — control module lights (cont.)

CHART 6 PRESS SWITCH light flashing and POWER light on steady

— Usually indicates pressure switch opened during run cycle —

— May also be caused by wind gusts in excess of 31 mph for non-direct vent sidewall-vented boilers —

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.

Reset boiler control by turning off power at service switch or turning down thermostat for at least 45 seconds.

Thermostat should call for heat and appropriate zone valves open.

Does blower motor operate?

No

Yes

Remove INDUCER plug (Figure 25, Item 6, page 46) from plug receptacle of control module.

Place voltmeter leads across the 120 VAC N and

120 VAC H pins of the INDUCER receptacle (left column center and right column bottom pins).

Does the voltmeter indicate 120 VAC?

No

 

Yes

 

 

 

 

• Replace inducer assembly.

• Retest.

Remove one of the wires connected to the pressure switch.

Check continuity across the switch terminals.

Does the ohmmeter indicate the switch is closed?

No

 

Yes

 

 

 

 

• Wait 5 minutes.

Is PRES SWITCH light flashing?

No

 

Yes

 

 

 

 

Boiler should be in normal operating sequence.

Observe operation until thermostat is satisfied and inducer has completed its post- purge cycle.

Inspect and check wire harness from control module to pressure switch.

Reseat connector in control module receptacle.

If harness is intact and properly seated, but problem persists, replace control module.

Retest.

Are vent or combustion air passages blocked?

No

 

Yes

 

 

 

 

 

 

 

Check air pressure switch per manual Section 11.

 

Clear passages and recycle

 

 

boiler.

Replace if necessary. Retest.

 

 

 

Recheck boiler operation.

 

 

 

 

 

 

 

 

52

Part number 550-110-260/0508

Page 52
Image 52
Weil-McLain 550-110-260/0508 manual Does blower motor operate?

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.

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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.