Crown Boiler CWI345, CWI172, CWI310, CWI103 a GASVALVEDETAIL-HONEYWELLVR8200ORVR8300STANDINGPILOT

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FIGURE 27a: GASVALVEDETAIL-HONEYWELLVR8200ORVR8300(STANDINGPILOT)

FIGURE 27a: GASVALVEDETAIL-HONEYWELLVR8200ORVR8300(STANDINGPILOT)

FIGURE 27b: GASVALVEDETAIL-ROBERTSHAW 7000ERHCANDHONEYWELLV8295(STANDINGPILOT)

FIGURE 28a: GASVALVEDETAIL-HONEYWELLVR8204ANDVR8304 (INTERMITTENT IGNITION)

FIGURE 28b: GASVALVEDETAIL-ROBERTSHAW 7000DERHC (INTERMITTENT IGNITION)

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Contents Models Gas-Fired Natural Draft Water Boilers INSTALLATION INSTRUCTIONSCWI Series These instructions must be affixed on or adjacent to the boilerTable of Contents I Product DescriptionFIGURE 1 CWI BOILERS - GENERALCONFIGURATION II SpecificationsTABLE 1 CWI SPECIFICATIONS III Before Installing IV Locating the BoilerV Air for Combustion and Ventilation ForBuildingsofUnusuallyTightConstruction For Buildings of Other than Unusually Tight ConstructionExample FIGURE 4 ALL AIR FROM OUTDOORS, VENTILATED CRAWL SPACE AND ATTIC FIGURE3BOILERINSTALLEDINCONFINEDSPACE, ALL AIR FROM INSIDEFIGURE 5 ALL AIR FROM OUTDOORS VIA VENTILATED ATTIC FIGURE 6 ALL AIR FROM OUTDOORS, USING OPENINGS INTO BOILER ROOM VI Venting Removing an Existing Boiler from a Common Chimney FIGURE8 CWI BOILERTYPICALVENTSYSTEM INSTALLATION AND COMPONENTS FIGURE 9 VENT DAMPER INSTALLATION DETAILSVII Gas Piping StandardPiping VIII System PipingDANGER 1413 Piping for Special SituationsFIGURE 11 STANDARD BOILER PIPING FIGURE 12 INDIRECT WATER HEATER BOILERSIDEPIPINGFIGURE13 BOILERBYPASSPIPING FIGURE14 ISOLATIONOFBOILERFROMSYSTEMWITHAHEATEXCHANGER FIGURE15 BOILERPIPINGWITHCHILLERIX TANKLESS HEATER PIPING Feel water before showering or bathing A mixing valve does not eliminate the risk of scaldingFIGURE 17TANKLESSHEATERPIPING IX Wiring SingleZoneWiringFIGURE 20 WIRING DIAGRAM, STANDING PILOT WITH TANKLESS HEATER Wiring Variations FIGURE23ZONEWIRINGUSINGHONEYWELLV8043FZONEVALVES FIGURE 22 CIRCULATOR ZONEWIRING USING HONEYWELLR845AsFACTORY BOILER WIRING NOT SHOWN - SEE FIGURES 18 FACTORYWIRING NOT SHOWN - SEE FIGURES 18Sequence of Operation, Standing Pilot, Less Tankless Heater CWI Control System - Sequence of OperationSequence of Operation, Standing Pilot, With Tankless Heater Sequence of Operation, Intermittent Ignition, Less Tankless Heater Sequence of Operation, Intermittent Ignition, With Tankless HeaterXI Start-up and Checkout Safety Control Operation - Standing Pilot and Intermittent Ignition2726 FIGURE 24 STANDING PILOT BURNER FLAMEPage Page TO TURN OFF GAS TO APPLIANCE FOR YOUR SAFETY READ BEFORE OPERATINGLIGHTING INSTRUCTIONS LIGHTING INSTRUCTIONS FOR BOILERS EQUIPPED WITH HONEYWELLLIGHTING INSTRUCTIONS FOR BOILERS EQUIPPED WITH ROBERTSHAW FOR YOUR SAFETY READ BEFORE LIGHTING7000ERHC SERIES GAS VALVES STANDING PILOT TO TURN OFF GAS TO APPLIANCE FOR YOUR SAFETY READ BEFORE LIGHTINGOPERATING INSTRUCTIONS VR8204 AND VR8304 SERIES GAS VALVES INTERMITTENT PILOT7000DERHC SERIES GAS VALVES INTERMITTENT PILOT FIGURE 27a GASVALVEDETAIL-HONEYWELLVR8200ORVR8300STANDINGPILOT FIGURE 28b GASVALVEDETAIL-ROBERTSHAW 7000DERHC INTERMITTENT IGNITIONXI Service and Maintenance Heat Exchanger Cleaning Procedure XIII Troubleshooting START C1&C2?5&6 on National Fuel Gas CodeSTART L2 ?T&TV? C1&C2?C2 and Standing Pilot Ignition System Troubleshooting Chart Caution Read page 36 before attempting to use this chartIntermittent Ignition System Troubleshooting Chart XIV PARTS Page 1/4 Pilot Tubing Used with Robertshaw Valves These Valves Piped in Series to Provide Redundent Shut-off40mm BURNERS ONLY Page KEY # Page B. BaseAssembly Preparation Appendix A Knockdown Boiler Assembly InstructionsA. Before Installing C. Heat Exchanger and Flue Collector InstallationFIGUREA1 BASE, HEAT EXCHANGER, FLUE COLLECTORASSEMBLY D. Gas Valve Installation E. Control and Trim InstallationFIGURE A2 JACKET INSTALLATION F. Electrical Wiring Connections G. Complete InstallationFIGURE A3 TAPPING LOCATIONS SEE TEXT FOR TAPPING USES 3633 I. Street P.O. BoxPhiladelphia