Bradford-White Corp TG-199E-N(X), TG-237E-N(X)A, TG-150E-N(X) Section VI Electrical Connections

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SECTION VI: ELECTRICAL CONNECTIONS

WARNING

Turn off or disconnect the electrical power supply to the water heater before servicing. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

All electrical wiring must be installed and grounded in accordance with local codes, or in the absence of local codes, the National Electrical Code, ANSI/NFPA 70 and/or CSA C22.2 Electrical Code.

The water heater must be wired to a 120 VAC, 60 Hz, 15A power supply. The water heater should be connected to a GFI outlet and wired on a separate circuit and breaker. A strain relief will be required for the line cord. Do not plug the line cord into a receptacle that can have the power supply interrupted by a switch that is used to control lights or another appliance.

If wiring in conduit is required, install an electrical conduit connector. A disconnect switch should be provided near the water heater for servicing. Connect the wires exactly as shown in the wiring diagram of this manual and on the inside cover panel. The black wire is the hot leg; the white wire is neutral. A green screw is provided in the junction box for the green wire ground connection.

CAUTION

Do not energize the electric circuit before the water heater tank is filled with water.

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Contents TG-150E-NX, TG-180E-NX, TG-199E-NX, TG237E-NX & TG-237E-NXA Table of Contents Page Page If YOU Smell GAS Model Section II SpecificationsDimensions TG-150E TG-180E TG-199E Section III Installation Instructions Water Heater Location UnpackingMount Water Heater on the Wall Remove CartonImportant In the State of Massachusetts 248CMR 4.00 State RegulationsInstallation Clearances Description Canadian Installations Inside Corner High Altitude Installations Instructions for Connections Section IV Water ConnectionsWater Quality Page Approximate TIME/TEMPERATURE Relationships in Scalds Recommended Piping for a Basic Installation Recommended Piping for a Circulation Systems Recommended Piping for Freeze Protection Recommended Piping for Power Failure Freeze ProtectionPressure Relief Valve Page Page Section V GAS Connections GAS Pressure Regulation GAS Meter Size Natural GAS onlyGas Specific CorrectionInitial Operation and Testing Installer only Section VI Electrical Connections CPU Page Wiring Diagram for TG-237E-NXand TG-237E-NXAModels Temperature Controls Page Installation of Controls Temperature Display Use IndicatorIllustration Showing Where to Connect Remote Control Harness Initial Operation and Testing of Controls Installer onlyResistance Connector Pin Nos Troubleshooting ElectricalWire Color Flame Rod Heat Exchanger and Outgoing Water Temperature ThermistorsAmp Fuses Frost ProtectionSequence of Operation Section VII Operating InstructionsGeneral Instructions To Fill the Water Heater Property damage, personal injury or loss of life Lighting Instructions For Your Safety Read Before OperatingWhat to do if YOU Smell GAS Operation InstructionsTurning OFF the Water Heater for AN Extended Period of Time Temperature AdjustmentTemperature Display Use Indicator First AID for Scalds Approximate TIME/TEMPERATURE Relationships in ScaldsScalding Code Code Description Diagnostic Codes on the Temperature Control DisplayCode Burner Flame Appearance Section Viii MaintenancePage Water Heater Circulating PumpPage Section IX Parts List Description Quantity Page Description Quantity Page Description Quantity Page Description Quantity TG-237E Models TG-237E-N TG-237E-X TG-237E-NA TG-237E-XA Page Description Quantity Page Description Quantity Page Description Quantity Section X Warranty How do you get warranty assistance? What will we do to correct problems?What should you do to keep the warranty in effect? What will we not do?Page Page Page Fax/215-641-1670 Parts Fax/215-641-2180