Weil-McLain 550-110-710/0107 manual 9b Operation wiring diagrams, Schematic wiring diagram

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GOLD CGi Gas-Fired Water Boiler — Boiler Manual

9b Operation — wiring diagrams

Figure 31 Schematic wiring diagram

38	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 avoidAir opening options 1e Prepare boiler location air openingsAir openings must be provided Two openings Air supply from inside the buildingSingle air opening option Exhaust fans and air moversMotorized air dampers Exception for large spacesPlace boiler/crate near position 2a Prepare boiler placement & setupOrifice replacement procedure Inspect orifices and burnersDrain and remove fittings 2b Prepare boiler pressure testHydrostatic pressure test Prepare boiler for testCGi venting methods Chimney draft or Direct exhaust 3a Venting general informationVenting chimney draft venting 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 Valve adjustment 4d Piping low temperature systemsTemperature gauges 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 boilerNatural Gas Connecting gas supply piping to boilerGas piping Propane GasWiring connections Field wiringElectrical installation must comply with ThermostatCheck for gas leaks Freeze protection when used7a Start-up preparation Determine if water treatment is neededInspect system water piping Do not use petroleum-based cleaning or sealing compoundsFill the system with water Inspect base insulationCheck system and boiler 7b Start-up operate boilerStart the boiler Check for 7c Start-up if boiler doesn’t startCheck burner flames 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 Condensate drain system 10b Service & maintenance annual start-upBurners and base Inducer motorAir vents and air elimination Gas pipingCold fill and operating pressures Limit controls and cutoffsReview the User’s Information Manual with the owner Review with ownerBoiler relief valve Before troubleshooting 11a Troubleshooting procedure11b Troubleshooting components Air pressure switchControl indicator lights Lockout modes Control indicator lightsTroubleshooting the control module Control moduleControl module connections Remove 120 VAC in plug , Item 3, page 50 on control module 11c Troubleshooting control module lightsChart Light flashing 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