Bradford-White Corp EF operation manual Section III General Information, Features

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SECTION III: GENERAL INFORMATION

FEATURES

This water heater contains the following features:

MAIN POWER ON/OFF SWITCH – The front panel of this water heater has a lighted ON/OFF switch, which is illuminated when the main power is turned on to indicate power to the water heater.

COMBUSTION SYSTEM –This water heater is equipped with a self-compensating negative pressure pre-mix combustion system. As the blower operates, air is drawn in through the air intake and into a venturi, which pulls gas from the gas valve. The gas and air is then mixed in the combustion blower and sent through the transition tube into the burner. The Hot Surface Ignition System (HSI) then ignites the gas/air fuel mixture to produce flue products (combustion). The flame sensor signals the ignition module (described below), that a flame is present.

IGNITION MODULE – The ignition module provides the timing for the combustion system. A sequence of operation (S-OP) is described in “Section IX: Operating Instruction.” As the combustion system progresses through the S-OP, LED’s illuminate, allowing accurate trouble-shooting should the need arise. If a failure occurs, the system will “blink” the LED that corresponds to the failure as described in the “Section XI: Troubleshooting Guide.”

ADJUSTABLE THERMOSTAT – This water heater is equipped with an adjustable thermostat to control water temperature. Hot water temperatures required for automatic dishwasher and laundry use can cause scald burns resulting in serious personal injury and/or death.

The temperature may be adjusted from about 80°F (26.6°C) to about 180°F (82.2°C). The thermostat was adjusted to 120°F (48.9ºC) before the water heater was shipped from the factory. It is recommended that lower temperatures be used to avoid the risk of scalding. Refer to the “Warnings” and the section on SCALDING in “Section V: Water Connections”. It is further recommended, in all cases, that the water temperature be set for the lowest temperature, which satisfies your hot water needs. This will also provide the most energy efficient operation of the water heater and minimizes scale formation.

Setting the water heater temperature at 120°F (48.9ºC) will reduce the risk of scalds. Some states require setting the specific lower temperatures.

The top immersion well of the single bulb controller also contains the high limit (energy cutoff) sensor. The high limit switch interrupts the main burner gas flow should the water temperature reach approximately 200°F (93.3ºC).

Should the high limit switch activate, it must be manually reset. This can be accomplished by turning the main power on/off switch to the off position and then back to the on position and allowing the water temperature of the tank to drop below 160°F (71.1ºC).

Contact your qualified installing contractor, service provider or manufacturer listed on the rating plate if continued high limit switch operation occurs.

SERVICE PANEL – The service panel is located behind the service panel access cover, which is located by the exhaust elbow near the bottom of the water heater. This panel contains a differential pressure switch that monitors the pressure across the exhaust orifice. A collector high limit switch is used to monitor the ambient temperature between the first pass collector and the exhaust collector. This is a manually re-settable switch. If this switch continues to trip, please contact an authorized service agency.

LATCHES – The latches allow easy access for servicing the water heater from the top. Simply remove the two latches for servicing and re-latch upon completion. No tools are required to obtain access to the top of the water heater.

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Contents With Troubleshooting Guide What to do if YOU Smell GASTable of Contents Page If YOU Smell GAS Do not Operate the Appliance Until the Leakage is CorrectedSection II Specifications Dimensions InchesFeatures Section III General InformationTemperature and Pressure Relief Valve Dishwashing Machine Requirements Condensate Elbow With TrapSection IV Installation Instructions Unpacking Minimum Clearance To Combustible MaterialRecommended Minimum Clearances For Service Access Remove CrateMechanical Exhausting of Room AIR LocationAIR Requirements Unconfined SpaceTypical Installation Illustration Chemical Vapor CorrosionTypical Two Water Heater Connection Section V Water Connections Instructions for ConnectionsScalding Approximate TIME/TEMPERATURE Relationships in Scalds Alternate Space Heating Water ConnectionsSection VI Venting Approved Venting Materials Direct Vent Installation VentingCanadian US Installations2 Installations1 Clearance above Direct Vent Terminal Clearances Page Typical Horizontal Direct Vent System Typical Vertical Direct Vent System Installation Power Vent Installation Determining required vent lengthPage Typical Horizontal Power Vent System Typical Vertical Power Vent System Installation Power Vent Maximum Vent Length Multiple INTAKE/EXHAUST Terminal Separation Distances Concentric Vent Terminal Installation Procedure Dimensional Layout of Concentric Vent KitRain Cap to Small Vent Pipe Ass’y Concentric Vent Side Wall Attachment Models Vent Pipe PreparationSection VII GAS Connections Initial PreparationSelection of Materials GAS Meter Size Natural Gases only GAS Pressure RegulationWiring Diagram and Schematic Section Viii Electrical ConnectionsTo Fill the Water Heater Section IX Operating InstructionsGeneral Instructions Sequence of OperationTemperature Adjustment Lighting InstructionsBurner Flame Check Sight Glass LocationGeneral Section X MaintenanceMaintenance Schedule Flushing Water HeaterDraining Water Heater Filling Water HeaterSediment and Lime Scale Removal Anode Inspection and Replacement To inspect or replace an anodeDrain Valve and Tank Access Panel Vent and AIR Intake SystemSection XI Troubleshooting Guide Combustion System InspectionSection XII Parts List EF Series Water HeaterCombustion 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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