Manuals / Raypak / Household Appliance / Water Heater

Raypak 503-2003 manual

Models: 503-2003

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Raypak 503-2003 manual

Contents

Models 503-2003 Types H & WH INSTALLATION & OPERATING INSTRUCTIONSRev. 8 reflects the following CONTENTS Pay Attention to These Terms WARNINGSModel Identification BEFORE INSTALLATIONInstallations at Elevation Product ReceiptFig. 2 Component Locations - Front Component LocationsGeneral Information Fig. 1 Component Locations - SideTime to Produce Serious GENERAL SAFETYTime/Temperature Relationships in Scalds WaterClearances INSTALLATIONInstallation Codes Equipment BaseMin. Clearance Combustion and Ventilation AirService HeaterCanadian Installations2 U.S. Installations1Table E Vent/Air Inlet Termination Clearances Direct Vent Conventional Combustion Air SupplyU.S. Installations Air FilterCanadian Installations Water PipingGeneral Cold Water Operation Temperature & Pressure GaugeRelief Valve Piping Hydrostatic TestCold Water Starts Hydronic HeatingPump Selection Feedwater RegulatorP ft ModelMin. Flow Max. FlowPool Heating Three-WayValvesDomestic Hot Water Potable Water and Space Heating1.Turn on pump Fiberglass Spas Winterizing Your HeaterRecommended Levels Fiberglass PoolsAutomatic Chlorinators and Chemical Feeders Gas SupplyGas Supply Connection Gas Supply PressureNatural Gas Electrical Power ConnectionsField-ConnectedControllers Check the Power SourceMaking the Electrical Connections Appliance Categories Field Wiring ConnectionVenting DANGER SHOCK HAZARDHeater Venting Category Exhaust ConfigurationU.S. Installations Combustion Air SupplyInstallation Venting Installation TipsVenting Configurations Canadian InstallationsTermination Model Volume ofCommon Venting Vent75’ of straight flue pipe InstallationCombustion Air InstallationModel CertifiedTermination Outdoor InstallationFreeze Protection ControlsOperating Modes Mode 5 - Outdoor reset using primary/secondary pip- ing. The heater is operated as in Mode 2. However, the target temperature is based on outdoor reset. See Fig Mode 8 - This mode is for remote firing control of the heater via an external sequencer such as the Raypak TempTracker MOD+. The Boil Max setting is the heater shutdown temperature max temperature. The heater is enabled via dry contact at the Enable/Disable connection at the low voltage terminal strip, and the fir- ing rate is controlled by a 0-10VDC signal from the external sequencer. A control signal of ≥0.5 VDC equates to minimum fire, and a signal of 10 VDC equates to 100% firing rate. See Fig 2-10VDC Default Setting0-10VDC 0-20mADefinitions Type Fault DescriptionRank Number FieldCode Heater Sequence of OperationHigh Limit-ManualReset Ignition ModuleHigh & Low Gas Pressure Switches Optional High Limit-AutoReset OptionalModulating Temperature Control Flow SwitchBlocked Vent Switch Air Pressure SwitchUDB Diagnostic Board WIRING DIAGRAMS - Models Models Initial Start-up START-UPPre Start-up Pre Start-upCheckAttach Manometers to Measure Pressures PreparationStart-Up Check Power SupplyManifold Gas Pressure Setting SettingSetting in. WC SettingFollow-Up Leak Test Procedure Dual-SeatGas ValveLighting Instructions OPERATIONTo Turn Off Gas To Appliance Step Step TROUBLESHOOTINGStep Step Step StepUDB Fault History MAINTENANCESuggested Minimum Maintenance Schedule Weekly Preventive Maintenance SchedulePeriodically DailyFilter Replacement Filter MaintenanceAs Required Inside Air Contamination APPENDIX248 CMR 5.082a1 through PARTS REPLACEMENT LIMITED PARTS WARRANTY MVB - TYPES H AND WHHEAT EXCHANGER WARRANTY ADDITIONAL WARRANTY EXCLUSIONSNominal Factory Recommended Settings START-UPCHECKLIST FOR FAN-ASSISTEDRAYPAK PRODUCTS EMISSIONS SETTINGS AND TEST INFORMATION