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Raypak 751 manual ADB-1501

Models: 751

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ADB-1501

Natural Draft Vertical Venting with- out Add-on Condensing Heat Exchanger (Category I)

Fig. 21: Natural Draft Vertical Venting without Add-on Condensing Heat Exchanger (Category I)

ADB-1501

NOTE:

*Rear venting is recommended to minimize interference with water piping

**Vent lengths are based on a lateral length of 2 feet. Refer to the latest edition of the National Fuel Gas Code for fur- ther details (ANSI Z223.1), or in Canada, the latest edition of CSA B149.

Table K: Natural Draft Vertical Vent without Add-on Condensing Heat Exchanger

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Raypak 751 manual ADB-1501

Contents

INSTALLATION AND OPERATING INSTRUCTIONS Advanced Design BoilerModels 751, 1001 & 1501 - Types H, WH & P WHAT TO DO IF YOU SMELL GASPage CONTENTS BEFORE INSTALLATIONGENERAL SAFETY INSTALLATIONWARNINGS Pay Attention to These TermsDANGER WARNING - CALIFORNIA PROPOSITIONBEFORE INSTALLATION Installations at ElevationProduct Receipt Model IdentificationComponent Locations Fig. 1 Component LocationsGENERAL SAFETY Time/Temperature Relationships in ScaldsWater Time to Produce SeriousINSTALLATION Installation CodesIndoor Installations Equipment BaseOutdoor Installations Combustion and Ventilation AirIndoor Units Direct VentCanadian Installations2 U.S. Installations1Table D Vent/Air Inlet Termination Clearances U.S. Installations Canadian InstallationsConventional Combustion Air Supply All Air from Inside the BuildingLow Temperature System Temperature & Pressure GaugeWATER PIPING GeneralHYDRONIC HEATING Pump SelectionPressure Drop in Feet of Head Feedwater Regulator Piping - Heating BoilersFig. 4 Single Boiler - Primary/Secondary Piping Fig. 6 Dual Boiler Piping Fig. 7 Dual Boiler - Piping with CHXDOMESTIC HOT WATER PIPING Fig. 9 Single Boiler - Domestic Hot Water with One Storage Tank Fig. 11 Single Boiler - Domestic Hot Water with One Storage Tank and CHX 2 pump system POOL HEATING Automatic Chlorinators and Chemical FeedersWinterizing Your Heater Pool and Spa Water ChemistryFig. 13 Single Boiler - Pool Application GAS SUPPLY CONNECTIONS Gas Supply Connection Gas Supply PressureModel 1-1/2”ELECTRICAL POWER CONNECTIONS Check the Power SourceGas Pressure Regulator Venting of Diaphragm Gas ComponentsElectrical Connections - Domestic Hot Water General VENTING CONNECTIONSDefinition of Appliance Categories Vent Terminal Location Support of Vent StackU.S. Installations Venting Configurations Venting Installation TipsCanadian Installations ADB-1501 Natural Draft Vertical Vent Termination ADB-1501 Horizontal Thru-wallDirect Vent Termination Horizontal Thru-wallDirect Vent Termination ·45′ of straight flue pipeThis type of installation can cause non warrantable problems with components and poor operation of the unit due to the recirculation of flue products. Multiple direct vent caps, when installed in the same horizontal plane, should have three 3 foot clearance from the side of one vent cap to the side of the adjacent vent caps Vertical Direct Venting System Installation Vertical Direct Vent TerminationModel Model Condensing Heat Exchanger Category Condensing Heat ExchangerThese installations utilize the boiler mounted blower to draw combustion air from outdoors and vent combus- tion products to the outdoors Outdoor Installation with Add-On Category IV InstallationVertical Direct Venting System With Add-onCondensing Heat ExchangerCONDENSATE DRAIN Central Point Wiring CPW CONTROLSThe CPW Board LightPump Turn-offDelay Freeze Protection FeatureBlower Fan Pre-purge Blower Fan Post-purgeU-2Diagnostics Board LightColor IndicationWIRING DIAGRAM Figure L-2 WIRING DIAGRAMFlow Switch High Limit - Manual ResetHigh Limit - Auto Reset Ignition Control ModuleHigh and Low Gas Pressure Switches - Manual Reset For Your Safety - Read Before LightingPRE-START-UP Low Water Cut Off OptionalPre-Start-upCheck Check Power Supply Blower AdjustmentPilot Adjustment ADB INITIAL START-UP6.If you have spark, turn off unit Main Burner Adjustment Safety InspectionPOST START-UPCHECK Follow-upMAINTENANCE Suggested Minimum Maintenance ScheduleOPERATION Operating InstructionsCONNECTING THE CONDENSING HEAT EXCHANGER CHX Cleaning Boiler Heating SurfacesDaily MonthlyVent Switch Adjustment APPENDIX Inside Combustion Air ContaminationSTART-UPCHECKLIST FOR FAN-ASSISTED EMISSIONS SETTINGS AND TEST INFORMATIONNominal Factory Recommended Settings RAYPAK PRODUCTS ADB, HI-DELTA& MVBLIMITED PARTS WARRANTY ADVANCED DESIGN BOILER HEAT EXCHANGER WARRANTYBLUFF HEAD BODY BURNER WARRANTY ADDITIONAL WARRANTY EXCLUSIONS