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Weil-McLain EGH-125, EGH-105 manual IX Service and maintenance, CSD-1control system - Natural gas

Models: EGH-125 EGH-105

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CSD-1 control system — Natural gas

IX Service and maintenance

Complete Installation and Service Certificate in EGH Manual, Section IX.

Follow EGH Manual, Section IX, for service and maintenance of boiler.

Part Number 550-110-677/0299

Page 31

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Weil-McLain EGH-125, EGH-105 manual IX Service and maintenance, CSD-1control system - Natural gas

Contents

CSD-1control system Control SupplementEGHGas-FiredBoiler EGH-105to EGH-125Series 4 Natural gas‡Contents Hazard definitions To the installerPlease read this page first EGH-105to EGH-125 Control SupplementComments Carton guideCSD-1control system - Natural gas CartonFigure Gas train assembly InstallationPlace the boiler Install gas train Install vent/breechingJohnson Controls damper Install optional vent damper if suppliedCSD-1control system - Natural gas Effikal damperW-MPart No III Install boiler controls - water boilersII Piping connections ApplicationApplication III Install boiler controls - steam boilersIV Optional heaters - steam boilers only CSD-1control system - Natural gasV Gas piping VI WiringAssembly illustrations and wiring diagrams Wiring procedureLockout modes VI Wiring - sequence of operationTroubleshooting Call for heatladder and schematic diagrams Wiring - water boilersLADDER WIRING DIAGRAM Water boiler wiringPart Number CSD-1control system - Natural gasSCHEMATIC WIRING DIAGRAM EGH-105to EGH-125 Control SupplementFigure Control assembly - water boiler VI Wiring — water boilersCSD-1control system - Natural gas EGH-105to EGH-125 Control SupplementCSD-1control panel Water boiler wiring VI Wiring - steamgravity return LADDER WIRING DIAGRAMPart Number SCHEMATIC WIRING DIAGRAMEGH-105to EGH-125 Control Supplement CSD-1control system - Natural gasFigure Control assembly - steam, gravity return VI Wiring - steamgravity return CSD-1control system - Natural gas EGH-105to EGH-125 Control SupplementWater boiler wiring pumped returnVI Wiring - steam LADDER WIRING DIAGRAMPart Number SCHEMATIC WIRING DIAGRAMEGH-105to EGH-125 Control Supplement CSD-1control system - Natural gasFigure Control assembly — steam, pumped return VI Wiring - steampumped return CSD-1control system - Natural gas EGH-105to EGH-125 Control SupplementCSD-1control panel 3.If boiler fails to start, check VII Final adjustmentsBefore proceeding To place boiler in operation EGH-105to EGH-125 Control SupplementPart Number 550-110-677/0299 VII Final adjustments - operating instructionsCSD-1control system - Natural gas Figure 11 Operating instructionsEGH-105to EGH-125 Control Supplement VIII Check-outprocedure - operationFigure Leak test procedure VIII Check-outprocedure - leak testCSD-1control system - Natural gas In event of actuator failure VIII Check-outprocedure - troubleshootingBefore troubleshooting Verify proper operation after servicingCSD-1control system - Natural gas VIII Check-outprocedure - troubleshootingCorrect by making connections EGH-105to EGH-125 Control Supplement VIII Check-outprocedure - troubleshootingSecure connections CSD-1control system - Natural gas VIII Check-outprocedure - troubleshootingReplace ignition control Retest EGH-105to EGH-125 Control Supplement VIII Check-outprocedure - troubleshootingTurn OFF supply voltage CSD-1control system - Natural gas IX Service and maintenanceEGH-105to EGH-125 Control Supplement X Replacement parts - water boilersFigure 14 Water boiler assembly ALARMCSD-1control system - Natural gas Table 5 Water boiler replacement partsFigure 15 Steam boiler assembly X Replacement parts - steam boilersEGH-105to EGH-125 Control Supplement CSD-1control system - Natural gas Table 6 Steam boiler replacement partsWeil-McLain 500 Blaine Street Michigan City, IN EGH-105to EGH-125 Control SupplementPart Number 550-110-677/0299