Bradford-White Corp EF operation manual Venting, Direct Vent Installation

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CAUTION

The vent shall terminate a minimum of 12 inches (30.5 cm) above expected snowfall level to prevent blockage of vent termination.

The horizontal centerline of the exhaust vent terminal (if applicable) must not be located lower than the horizontal centerline of the air intake terminal if vented through the same wall.

A service drain loop must be installed in the drain tubing to serve as a condensate trap to prevent flue gases from escaping into the room.

DO NOT position the air intake above the exhaust terminal.

NEVER locate the air intake where exhaust gases can be introduced.

All vent pipes and terminals are to have a 1” minimum clearance to combustibles. DO NOT use the placement of insulation or other materials in the required clearance spaces surrounding the venting to combustible materials unless otherwise specified.

CAUTION

Check to make sure flue gases do not recirculate into the air intake terminal when using direct venting. If the water heater is having service issues, flue recirculation may be a contributing factor. Even when the minimum vent terminal separation distances are followed, recirculation may still occur depending upon the location outside the building, the distance from other buildings, proximity to corners, weather conditions, wind patterns, and snow depth. Periodically check to make sure that flue recirculation is not occurring. Signs of flue gas recirculation include frosted or frozen intake terminals, condensate in the intake terminal and venting system, oxidation or white chalk material on the flame sensor or igniter shield. Correction to flue recirculation may involve angling the intake away from the exhaust terminal, increasing the distance between them, relocating the air intake to another side of the building, or using inside air for combustion. Check to be sure the intake and exhaust terminals are not obstructed, especially during periods of below freezing weather.

All intake and exhaust venting components must have the same diameter size. Do not use a different size on the intake and exhaust venting. For 4 inch (10.2 cm) venting, use the supplied 3 inch (7.6 cm) vent terminals.

Be sure the condensate runs freely to a drain and does not accumulate inside the water heater. In cold climates, precautions may need to be taken to insure that the condensate drain does not freeze. Make sure the condensate trap or drain loop is installed to prevent flue gases from being discharged into the room. Refer to the Venting section of the Installation and Operating Instructions Manual for complete instructions on venting and condensate drainage.

VENTING

The venting instructions must be followed to avoid restricted combustion or recirculation of flue gases. Such conditions cause sooting or risks of fire and asphyxiation.

This water heater can be installed as either a direct vent system or power vent (air from inside) system. If it is installed as a direct vent system, then the air intake and the exhaust vent are piped to the outside. If a power vented system is used, then air is drawn from inside and only the exhaust is piped to the outside. Determine which system is best for your application and install as described in the following sections.

DIRECT VENT INSTALLATION

Venting may be run horizontally through an outside wall or vertically through a roof through using either 3 inch (7.6 cm) or 4 inch (10.2 cm) diameter PVC, ABS or CPVC pipe. This water heater is supplied with a screened intake elbow and exhaust coupling referred to as the air intake terminal and the exhaust vent terminal.

NOTICE

If 4 inch (10.2 cm) PVC, ABS, or CPVC pipe is used, then a use a 4 inch (10.2 cm) to 3 inch (7.6 cm) reducer fitting before exiting the wall or roof to use the supplied screened intake and exhaust terminals.

Direct Vent Terminal Location

Plan the vent system layout so that proper clearances are maintained from plumbing and wiring. Before the vent is installed, determine the vent pipe termination location as shown in Figure 12.

NOTICE

The air intake and exhaust terminals may be located on separate outside walls or one terminal may exit the roof while the other is through the wall. The total combined equivalent vent length must be within the limits specified in the venting tables and the intake length cannot exceed the exhaust by more than 30 feet (9 m). The minimum recommended vent separation distance between the intake and exhaust terminals is 36 inches (91.4 cm). Local conditions may require a need for greater vent separation distances.

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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 AccessUnconfined Space LocationAIR Requirements Mechanical Exhausting of Room AIRChemical 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 SchematicSequence of Operation Section IX Operating InstructionsGeneral Instructions To Fill the Water HeaterLighting Instructions Temperature AdjustmentSight Glass Location Burner Flame CheckFlushing Water Heater Section X MaintenanceMaintenance Schedule GeneralFilling 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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