Raypak 0133-4001 WH, NH manual Electrical Connections, SINGLE-STAGE Tankstat, ON/OFF Units

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ELECTRICAL CONNECTIONS

CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

DANGER - SHOCK HAZARD

Make sure electrical power to the heater is discon- nected to avoid potential serious injury or damage to components.

The heater is normally wired for 120 Volts. The voltage is indicated on the tie-in leads. Consult the wiring diagram shipped with the heater in the instruc- tion packet. The "TH" leads are for the remote tank

control connection. 24 Volts are supplied to this con- nection through the heater transformer. DO NOT attach line voltage to the "TH" leads on models 514- 1826. Before starting heater check to ensure proper voltage to heater and pump.

Heater must be electrically grounded in accor- dance with National Electrical Code ANSI/NFPA No 70.

NOTES:

1.Field install ground wire to inside of junction box.

2.If any of the original wire supplied with the heater must be replaced, it must be replaced with 105°C wire or its equivalent.

Fig # 9138.2Fig # 9138.1

SINGLE-STAGE TANKSTAT	2- STAGE TANKSTAT
	(2 ON/OFF UNITS)

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Contents For Your Safety Installation Operating InstructionsTable of Contents HOT Water Supply Heaters General SpecificationsReceiving Equipment ALL Models Approved Model IdentificationGeneral Safety Precautions Installation Codes Installation InstructionsClearances Model Specifications and DimensionsModels Models High Wind Conditions Outdoor Units Only Outdoor Water HeatersVenting Outdoor InstallationsBefore After Installation Drafthood Indoor InstallationsVent TERMINAL/INDOOR Stack Installation Fig. #7043.1 Vent PipingModels 133 Through 261 Where Required Location Vent Damper InstallationVent Damper Plumbing GeneralGAS Supply Connections Venting of Diaphragm GAS Components GAS Pressure RegulatorFlow Rates Piping Domestic HOT Water Supply Heaters General Specifications UNI-TEMP 80 HOT Water Supply SystemsPiping Diagrams Type WH Unitemp 80 System Type NH Instantaneous Type NH Dual Models Minimum Input AdjustmentEconomaster Control Controls GeneralRelief Valve Electronic IgnitionLimit Controls High Limit Flow Switch100% Pilot Safety High and LOW GAS Pressure Switches OptionalComponent Identification Electrical Connections SINGLE-STAGE TankstatON/OFF Units Location of Controls 400 WH1, WH2, WH3 LOW NOx WH1Fig. #9334 Initial START-UP Pump and Motor START-UP Procedures Before START-UPScalding TIME/TEMPERATURE Relationships in ScaldsFor Models with Manual GAS Valves For Your Safety Read Before OperatingOperating Instructions To Turn OFF GAS to ApplianceFor Models with Automatic GAS Valves Inspection Procedures BurnersAfter START-UP ControlsInspection Procedures Visual Inspection Burner AdjustmentHigh GAS Pressure Switch START-UP ProceduresMain Burner and Orifice Removal Burner Tray RemovalPilot Removal GAS Valve RemovalHoneywell S8600 Troubleshooting ElectricalWiring Diagrams Wiring Diagram WH2 182/260 Wiring Diagram WH2 330/400 Wiring Diagram WH2 514/624 Wiring Diagram WH2 Wiring Diagram WH2 Wiring Diagram WH2 Wiring Diagram WH2 Wiring Diagram WH1 181/261 LOW NOx Wiring Diagram WH1 331/401 LOW NOx Mechanical Problem Possible Cause Corrective Action TroubleshootingTroubleshooting Pumps Service and Maintenance ProceduresTube Cleaning Typical Burner Tray Illustrated Pilot Removal and CleaningHigh Limit or Tankstat Removal Heat Exchanger RemovalHeat Exchanger RE-ASSEMBLY Control Well ReplacementTube Replacement Cleaning Flue GAS Passageways Replacement PartsCatalog Model Number Scope Warranty