Weil-McLain 550-110-710/0107 manual 10b Service and maintenance annual start-up

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GOLD CGi Gas-Fired Water Boiler — Boiler Manual

10b Service and maintenance — annual start-up

The boiler should be inspected and started annu- ally, at the beginning of the heating season, only by a qualified service technician. In addition, the maintenance and care of the boiler designated in Table 8, page 43, and explained on the following pages must be performed to assure maximum boiler efficiency and reliability. Failure to service and main- tain the boiler and system could result in equipment failure.

Eliminate all system or boiler leaks. Continual fresh makeup water will reduce boiler life. Miner- als can build up in sections, reducing heat transfer, overheating cast iron, and causing section failure. Leaking water may also cause severe property dam- age.

Air openings

1.Verify that combustion and ventilation air openings to the boiler room and/or building are open and unobstructed.

2.Verify that boiler vent discharge is clean and free of obstructions.

Flue gas vent system

1.Visually inspect entire flue gas venting system for blockage, deterioration or leakage. Repair any joints that show signs of leakage in accordance with vent manufacturer’s instructions.

Failure to inspect for the above conditions and have them repaired can result in severe personal injury or death.

Do not use petroleum-based cleaning or sealing

compounds in boiler system. Severe damage to boiler will occur, resulting in substantial property damage.

Pilot and main burner flames

1.Visually inspect pilot burner and main burner flames as directed under Start-up, Section 7 of this manual.

Electrical shock hazard — Turn off power to the boiler before any service operation on the boiler except as noted otherwise in this instruction manual. Failure to turn off electrical power could result in electrical shock, causing severe personal injury or death.

Inspect . . .

Reported problems

Inspect any problems reported by owner and correct before proceeding.

Boiler area

1.Verify that boiler area is free of any combustible materials, gasoline and other flammable vapors and liquids.

2.Verify that boiler area (and air intake) is free of any of the contaminants listed in Table 1 on page 9 of this manual. If any of these are present in the boiler intake air vicinity, they must be removed. If they cannot be removed, isolate the boiler and provide outside combustion air. See national, provincial or local codes for further information.

Water piping

1.Check the boiler interior piping and all system pip- ing for signs of leaks.

2.Repair any leaks before proceeding.

Boiler heating surfaces

1.Disconnect the vent pipe at the boiler inducer outlet connection after turning off power to the boiler.

2.Use a bright light to inspect the flue pipe interior and inducer interior.

3.Inspect the boiler vent outlet area and heating sur- faces by looking through the opening.

4.If the vent pipe or inducer interior show evidence of soot, follow Cleaning boiler heating surfaces on page 47 to remove the flue collector and clean the boiler if necessary after close inspection of boiler heating surfaces. If there is evidence of rusty scale deposits, check the water piping and control system to make sure the boiler return water temperature is properly maintained (per this manual).

5.Reconnect vent to inducer outlet and replace all boiler components before returning to service.

6.Check inside and around boiler for evidence of any leaks from the boiler. If found, locate source of leaks and repair.

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Part Number 550-110-710/0107

 

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Contents Gold CGi How it works Gold CGi Gas-Fired Induced-Draft Water Boiler Contents Please 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 Chimney or vent require- ments When removing boiler from an existing common vent system1c Prepare boiler location vent system 1d Prepare boiler location air contamination Products to avoid1e Prepare boiler location air openings Air openings must be providedAir opening options Two openings Air supply from inside the buildingExhaust fans and air movers Motorized air dampersSingle air opening option Exception for large spaces2a Prepare boiler placement & setup Orifice replacement procedurePlace boiler/crate near position Inspect orifices and burners2b Prepare boiler pressure test Hydrostatic pressure testDrain and remove fittings Prepare boiler for test3a Venting general information Venting chimney draft ventingCGi venting methods Chimney draft or Direct exhaust Chimney draft venting3c Venting Direct exhaust components Obtain vent system components3d Venting direct exhaust vent starter Vent StaR-34 Vent starter3e Venting direct exhaust termination Vent termination minimum clearancesSidewall venting See Figures 14 3f Venting direct exhaust installationVertical venting See . Follow vent Using any termination other than one of those shown 4a Water piping general information Closed-type expansion tank 4b Water piping single-zone systemDiaphragm-type or bladder- type expansion tank Figure 4c Water piping multiple zones Piping multiple zonesZoning with circulators 4d Piping low temperature systems Temperature gaugesValve adjustment Primary/secondary preferred bypass piping methodPrimary/secondary piping Valve adjustment BOILER-bypass piping methodBoiler-bypass piping Zoning with SYSTEM-bypass piping method 4e Water piping refrigeration system Prevent chilled water from entering boilerConnecting gas supply piping to boiler Gas pipingNatural Gas Propane GasField wiring Electrical installation must comply withWiring connections ThermostatFreeze protection when used 7a Start-up preparationCheck for gas leaks Determine if water treatment is neededDo not use petroleum-based cleaning or sealing compounds Fill the system with waterInspect system water piping Inspect base insulationCheck system and boiler 7b Start-up operate boilerStart the boiler 7c Start-up if boiler doesn’t start Check burner flamesCheck for Pilot burner flame FigureCheck-out procedure checklist Thermostats9a Operation sequence During main burner operation9b Operation wiring diagrams Schematic wiring diagramLadder wiring diagram 9c Operating instructions CGi-25 to CGi-6 9c Operating instructions CGi-25 to CGi-6 9c Operating instructions CGi-25 to CGi-8 10a Service and maintenance schedule Verify Proper Operation After Servicing10b Service and maintenance annual start-up 10b Service & maintenance annual start-up Burners and baseCondensate drain system Inducer motorGas piping Cold fill and operating pressuresAir vents and air elimination Limit controls and cutoffsReview the User’s Information Manual with the owner Review with ownerBoiler relief valve 11a Troubleshooting procedure 11b Troubleshooting componentsBefore troubleshooting Air pressure switchControl indicator lights Troubleshooting the control moduleControl indicator lights Lockout modes Control moduleControl module connections 11c Troubleshooting control module lights Chart Light flashingRemove 120 VAC in plug , Item 3, page 50 on control module VAC in plugChart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Chart 4 Flame & Power lights flashing Usually indicates flame sensed when it shouldnt be thereDoes blower motor operate? Item 8 , Verify Sequence Operation, FigureControls Repair Parts Lists 12a Replacement partsSection assembly Base Jacket Trim Controls 12b Replacement parts section assembly Section assembly12c Replacement parts base Base assemblyDescription Weil-McLain Part number 12d Replacement parts jacket Jacket assemblyBoiler Model Weil-McLain part number BoilerModel Weil-McLain part number 12e Replacement parts trim Fittings shown are included with boiler12f Replacement parts controls Propane gas components13a Dimensions Dimensional drawing13b Ratings Handling ceramic fiber and fiberglass materials Removal of Combustion Chamber Lining or Base Panels