Control Supplement | Weil-McLain EGH-125, EGH-105 instruction

EGHGas-Fired Boiler

Control Supplement

EGH-105 to EGH-125 Series 4 Natural gas‡

CSD-1 control system

‡For propane boilers, install EGH propane conversion kit in addition to following the instructions in this Control Supplement.

Part No. 550-110-677/0299

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Weil-McLain EGH-125, EGH-105 manual Control Supplement

Contents

Control Supplement Please read this page first Boiler cartons Carton guide Gas train assembly Installation Vent damper assemblies Install optional vent damper if supplied II Piping connections III Install boiler controls water boilersWater boiler connections IV Optional heaters steam boilers only III Install boiler controls steam boilersSteam boiler connections Gas piping VI Wiring Call for heat VI Wiring sequence of operation Water boiler wiring Wiring water boilers Schematic Wiring Diagram Control assembly water boiler VI Wiring water boilers CSD-1 control panel Gravity return VI Wiring steam Schematic Wiring Diagram 13a Control assembly steam, gravity return CSD-1 control panel Pumped return Schematic Wiring Diagram Control assembly steam, pumped return Terminal strip Before proceeding To place boiler in operation VII Final adjustments Operating instructions VII Final adjustments operating instructions Viii Check-out procedure operation Leak test procedure Viii Check-out procedure leak test Verify proper operation after servicing Viii Check-out procedure troubleshooting Replace pilot assembly TS-2 No Spark System boiler with vent damper does not work Not OK TS-3 Pilot lights Main valve will not come on from previous IX Service and maintenance Water boiler assembly Replacement parts water boilers RV20VL Water boiler replacement parts Steam boiler assembly Replacement parts steam boilers RV20VL Steam boiler replacement parts Weil-McLain Blaine Street Michigan City,