Weil-McLain 550-110-260/02002 7c Start-up if boiler doesn’t start, Check burner flames, Check for

Page 29

Boiler Manual

7b Start-up — operate boiler continued

4.Check around the boiler for gas odor following the procedure of section 7a of this manual.

If you discover evidence of any gas leak, shut down the boiler at once. Find the leak source with bubble test and repair immediately. Do not start boiler again until corrected. Failure to comply could result in severe personal injury, death or substantial property damage.

Figure 16 Typical pilot burner flame

Inner

Sparkcone electrode

Check burner flames

View pilot and main flames through the inspection port in the Air inlet box front cover.

Pilot burner flame

Proper pilot flame characteristics (see Figure 16):

1.Blue flame.

2.Inner cone engulfing pilot flame sensor.

3.Pilot flame sensor glowing cherry red.

Improper pilot flame characteristics:

1.Overfired — Large flame lifting or blowing past pilot flame sensor.

2.Underfired — Small flame. Inner cone not engulfing pilot flame sensor.

3.Lack of primary air — Yellow flame tip.

4.Incorrectly heated pilot flame sensor.

Pilot flame sensor

26023

Figure 17 Typical main burner flame

Main burner flame

Proper main burner flame characteristics (see Figure 17):

1. Yellow-orange streaks may appear (caused by dust).

Improper main burner flame characteristics:

1.Overfired — Large flames.

2.Underfired — Small flames.

3.Lack of primary air — Yellow tipping on flames (sooting will occur).

Transparent blue flame

Inner flame

26024

7c Start-up — if boiler doesn’t start . . .

Check for:

1.Loose connections, blown fuse or service switch off?

2.High limit switch set below boiler water temperature?

3.Thermostat set below room temperature?

4.Gas not turned on at meter or boiler?

5.Incoming gas pressure less than:

5" w.c. for natural gas?

11" w.c. for propane gas?

If none of the above corrects the problem, refer to Troubleshooting, section 11 of this manual.

Part number 550-110-260/0200

29

Page 28 Page 30
Image 29
Page 28 Page 30
Contents Page ① Control module How it worksPage Contents User InstallerPlease read before proceeding 1a Prepare boiler location codes & checklist Flooring and foundation Residential garage installation1b Prepare boiler location clearances Removing from existing vent 1c Prepare boiler location vent systemAir contamination 1d Prepare boiler location contaminationCGs combustion air options 1e Prepare boiler location air openingsSizing air openings for CGs installations Orifice replacement procedure 2a Prepare boiler placement & setupPlace boiler/crate near position Inspect orifices and burnersPerform hydrostatic pressure test 2b Prepare boiler pressure testPrepare boiler for test Fill and pressure test3a Water piping general information Expansion tank 3b Water piping single-zone systemDiaphragm-type or bladder-type expansion tank Figure Closed-type expansion tank FigureConverted gravity or steam systems 3c Water piping multiple zonesTypical piping multiple-zone installations 3d Water piping low temp systems Temperature gauges Valve adjustmentFor radiant heating or converted gravity systems Primary/secondary preferred bypass piping3e Water piping low temp systems Boiler-bypass alternate piping 3f Water piping low temp systems Prevent chilled water from entering boiler 3f system-bypass alternate piping3g Water piping refrigeration system Gas piping Connecting gas supply piping to boilerVenting and combustion air Length Natural GasWiring connections Field wiringThermostat Junction Box furnished7a Start-up preparation Freeze protection when usedDetermine if water treatment is needed Check for gas leaks7b Start-up operate boiler 7a Start-up preparationCheck for 7c Start-up if boiler doesn’t startCheck burner flames Installation and service certificate Check-out procedure checklistRaise room thermostat to call for heat 9a Operation sequenceSchematic wiring diagram 9b Operation wiring diagramsService 9c Operation lighting instructions For Your Safety Read Before OperatingService technician 10a Service and maintenance schedule10b Service & maintenance annual start-up Boiler heating surfaces Burners, base and inlet air boxCondensate drain system Inducer motor10b Service & maint. annual start-up Lever must be operated AT Least Boiler relief valveReview with owner Before troubleshooting 11a Troubleshooting procedureCheck pressure switch setting 11b Troubleshooting air pressure switchControl indicator lights lockout modes 11c Troubleshooting 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 Turn OFF Power to boiler at service switch or breaker Does blower motor operate? Verify Sequence of operation, , 12a Replacement parts Page Page Page Page Page Dimensional drawing 13a DimensionsDOE 13b RatingsRemoval of Combustion Chamber Lining or Base Panels Handling ceramic fiber and fiberglass materials

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.

The boiler is equipped with a user-friendly digital control interface, providing operators with real-time monitoring and diagnostics. This allows for easy adjustments and troubleshooting, which helps to reduce maintenance downtime. The integrated safety features enhance the operational reliability of the unit, ensuring safe operation in any environment.

Another important characteristic of the Weil-McLain 550-110-260/02002 is its adaptability. It can be configured to work with various types of fuel including natural gas and propane, giving users the flexibility to choose the most cost-effective energy source. This versatility also helps to extend the lifespan of the boiler as it can be easily adapted to changing energy needs.

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.
Top Page Image Contents