Bradford-White Corp EF Section Viii Electrical Connections, Wiring Diagram and Schematic

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SECTION VIII: 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 must be connected to a GFI outlet and wired on a separate circuit and breaker. If a flexible line cord and plug is permitted by local code, then provide a three wire GFI grounding type receptacle within reach of the line cord provided on the control box. 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, remove the line cord and strain relief bushing in the control panel and install an electrical conduit connector. Connect the hot, neutral, and ground leads to the terminal block using quick connect terminals. Refer to the wiring diagram for the correct terminal locations for each wire lead.

CAUTION

This water heater must be wired on a separate circuit. Failure to wire on a separate circuit may cause improper operation or failure of the electrical components of the water heater. A GFI outlet or breaker is required. Refer to the “Electrical Connections” section of the Installation and Operating Instructions Manual for complete instructions on electrical wiring and connections to the water heater.

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

This controller is Polarity sensitive. If the Hot and Neutral Supply voltage is reversed, the controller will not sense flame and the water heater will not operate. Verify polarity before connecting the water heater.

Figure 25. Wiring Diagram and Schematic

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Contents What to do if YOU Smell GAS With Troubleshooting GuideTable of Contents Page Do not Operate the Appliance Until the Leakage is Corrected If YOU Smell GASDimensions Inches Section II SpecificationsSection III General Information FeaturesTemperature and Pressure Relief Valve Condensate Elbow With Trap Dishwashing Machine RequirementsSection IV Installation Instructions Minimum Clearance To Combustible Material UnpackingRemove Crate Recommended Minimum Clearances For Service AccessAIR Requirements LocationMechanical Exhausting of Room AIR Unconfined SpaceChemical Vapor Corrosion Typical Installation IllustrationTypical Two Water Heater Connection Instructions for Connections Section V Water ConnectionsScalding Alternate Space Heating Water Connections Approximate TIME/TEMPERATURE Relationships in ScaldsSection VI Venting Approved Venting Materials Venting Direct Vent InstallationCanadian US Installations2 Installations1 Clearance above Direct Vent Terminal Clearances Page Typical Horizontal Direct Vent System Typical Vertical Direct Vent System Installation Determining required vent length Power Vent InstallationPage Typical Horizontal Power Vent System Typical Vertical Power Vent System Installation Power Vent Maximum Vent Length Multiple INTAKE/EXHAUST Terminal Separation Distances Dimensional Layout of Concentric Vent Kit Concentric Vent Terminal Installation ProcedureRain Cap to Small Vent Pipe Ass’y Concentric Vent Side Wall Attachment Vent Pipe Preparation ModelsInitial Preparation Section VII GAS ConnectionsSelection of Materials GAS Pressure Regulation GAS Meter Size Natural Gases onlySection Viii Electrical Connections Wiring Diagram and SchematicGeneral Instructions Section IX Operating InstructionsTo Fill the Water Heater Sequence of OperationLighting Instructions Temperature AdjustmentSight Glass Location Burner Flame CheckMaintenance Schedule Section X MaintenanceGeneral Flushing Water HeaterFilling Water Heater Draining Water HeaterSediment and Lime Scale Removal To inspect or replace an anode Anode Inspection and ReplacementVent and AIR Intake System Drain Valve and Tank Access PanelCombustion System Inspection Section XI Troubleshooting GuideEF Series Water Heater Section XII Parts ListCombustion Surround Assy Ignition Control Assy

EF specifications

Bradford-White Corporation, a leader in water heating technology, has long been recognized for its innovation and quality in the industry. One of its standout offerings is the EF series, a line of high-efficiency water heaters designed to meet the growing demand for energy efficiency and reliable performance in residential and commercial applications.

The Bradford-White EF (Energy Factor) series features advanced, state-of-the-art technologies that optimize energy use while providing consistent hot water availability. One of the most notable aspects of these systems is their impressive energy efficiency ratings. The EF series utilizes cutting-edge insulation materials and advanced combustion technology, helping to minimize heat loss and reduce energy consumption. Customers benefit not only from lower utility bills but also from a product that is environmentally friendly.

Key features of the EF series include a patented Hydrojet Total Performance System, which enhances efficiency by reducing sediment buildup within the tank. This system contributes to a longer lifespan and optimal performance of the water heater, ensuring users have reliable hot water even during peak demand periods. Additionally, the EF series incorporates an intelligent electronic control system that monitors and adjusts the operation of the unit, further maximizing efficiency and providing precise temperature control.

Safety is another major consideration in the design of the EF series. Bradford-White has integrated advanced safety features, including a flame arrestor and a robust pressure relief valve, which ensure that the units operate safely and adhere to the highest industry standards. This commitment to safety demonstrates Bradford-White’s focus on providing peace of mind to homeowners and business owners alike.

Ease of installation and maintenance is a significant advantage of the EF series. Its compact design allows for flexible installation options, making it suitable for a variety of spaces, including tight or hard-to-reach areas. Moreover, the EF model is designed for simplified maintenance, which helps reduce labor costs and downtime for both homeowners and professionals.

Overall, the Bradford-White EF series is an excellent choice for those seeking a reliable, efficient, and safe water heating solution. With a blend of innovative technology, energy efficiency, and user-friendly features, the EF series exemplifies Bradford-White’s commitment to quality and customer satisfaction, making it a trusted name in the water heating industry.
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