Bradford-White Corp SX), D4504S*F(BN, D4403S*F(BN ScreenLok Flame Arrestor Cleaning Procedure

Page 35

Arrestor Cleaning

ScreenLok® Flame Arrestor Cleaning Procedure

Step 1. Move the gas control power switch to the “OFF” position and unplug the water heater from the wall outlet.

Step 2. Remove the outer door.

Step 3. Remove the right side inner door per the Inner Door Removal Procedure on page 32.

Step 4. Disconnect the pilot tube using a 7/16” wrench and the main burner feedline with a 3/4” wrench from the gas control.

Step 5. Disconnect the spark igniter/flame sensor wire from gas control.

Step 6. Remove the burner assembly from the combustion chamber.

Step 7. Clean the ScreenLok® flame arrestor using a stiff brush, compressed air, and/or a shop vacuum to remove any scale or other debris accumulation. Using a soft brush, clear jacket openings from any dirt, dust, restrictions, or other obstructions.

Step 8. Remove any debris from the burner assembly following the Burner Cleaning Procedure on page 15.

Step 9. Re-install the burner assembly.

Step 10. Reconnect the main and pilot tubing and spark igniter wire to the gas control.

Step 11. Re-install the inner door per the Inner Door Installation with Gasket Procedure on page 34.

Step 12. To resume operation, follow the instructions located on the water heater lighting instruction label. Or, use the lighting instructions located in the water heater installation and operating manual.

Damper Relay Installation

If the damper fails and water heater operation is necessary temporarily, a relay, p/n 233-47642-00, and harness, p/n 239-48471-00, can be ordered from the Bradford White Service Parts Department.

Step 1. Move the gas control power switch to the “OFF” position.

Gas control power

switch

Page 35

35

Page 34 Page 36
Image 35
Page 34 Page 36
Contents Service Manual Table of Contents Page Page Introduction Bradford White Defender Safety SystemHow the Safety System Works IntroductionHow to Use this Manual How to Use this ManualSpecifications Wiring Diagram Normal Heating Sequence Power Up SequenceDamper Powered Open Sequence of OperationNormal Heating Sequence cont’d Trial for Ignition Fault Abnormal Operation cont’d Temperature Sensor FaultDamper Safety Circuit Fault Abnormal Operation cont’d Flame Sensing Fault Probable Cause Service Procedure TroubleshootingLED Status Control Status Probable Cause Service Procedure Burner Inspection Burner MaintenanceBurner Cleaning Procedure Right side inner door Main burner Orifice Pilot Inspection, Testing and Replacement Pilot MaintenanceBurner Cleaning Procedure cont’d Pilot Inspection, Testing and Replacement cont’d Damper Removal & Installation Damper ReplacementDamper Removal & Installation cont’d Thermal Well Testing Thermal Well TestingDetermine Water Temperature Inside Tank Determine Tank TemperatureThermal Well Testing cont’d Gas Control & Thermal Well Removal From Water Heater Component DisassemblySensor Resistance at Various Temperatures Gas Control Removal From Thermal Well Gas Control RemovalGas Control & Thermal Well Removal From Water Heater cont’d Gas Control Removal From Thermal Well cont’d Gas Control AssemblyGas Control Assembly to the Thermal Well Gas Control Assembly to the Thermal Well cont’d VAC Circuit Trace Flammable Vapor Sensor TestingFlammable Vapor Sensor Testing Dip Tube Inspection Dip Tube Inspection and ReplacementAnode Inspection Anode Inspection and ReplacementDamper Removal Remove the Damper to Gain Access to the Flue BaffleRemove the Damper to Gain Access to the Flue Baffle cont’d Inner Door Removal Inner Door Removal ProcedureInner Door Gasket Replacement Procedure Inner Door Gasket ReplacementInner Door Removal Procedure cont’d Inner Door Installation with Gasket Inner Door InstallationDamper Relay Installation Arrestor CleaningScreenLok Flame Arrestor Cleaning Procedure Damper Relay Installation cont’d Damper Relay InstallationConnect the other ends of the relay harness, as shown Common Terms Common TermsPart Name and Description Parts ListParts@bradfordwhite.com Techserv@bradfordwhite.com

SX), D4504S*F(BN, D4403S*F(BN specifications

Bradford-White Corp has long been a pioneering name in the water heating industry, and their D4403S*F(BN, D4504S*F(BN, and SX models represent the company’s commitment to delivering high-quality, efficient solutions for residential and commercial applications. These water heaters are designed with various user needs in mind, ensuring that homeowners and businesses can enjoy a reliable hot water supply whenever needed.

One of the core features of these models is their advanced water heating technology. Utilizing power venting systems, these units ensure efficient heat transfer while minimizing heat loss. This technology promotes energy efficiency and helps users save on their energy bills. The power vent system also allows for flexible installation options, accommodating different types of venting configurations, which is especially useful in homes with unique designs or limited space.

The Bradford-White D4403S*F(BN and D4504S*F(BN models are equipped with their state-of-the-art Hydrojet Total Performance System. This feature not only enhances the heater's overall performance but also reduces sediment buildup within the tank, which can significantly extend the unit's lifespan and maintain efficiency over time. Moreover, the patented Vitraglas® lining protects the inner tank from corrosion, further prolonging the life of the appliance.

Safety is a paramount consideration in Bradford-White's design philosophy. Each model includes a robust Flammable Vapor Ignition Resistance (FVIR) system, which helps prevent the ignition of flammable vapors that may be present in the vicinity of the water heater. This feature meets stringent safety standards and provides peace of mind to users.

In terms of energy specifications, both the D4403S*F(BN and D4504S*F(BN models are designed to meet or exceed efficiency standards, contributing to lower energy consumption and environmental impact. The SX model is particularly notable for its user-friendly digital display and controls, allowing for easy temperature adjustments and efficient operation monitoring.

In conclusion, Bradford-White Corp's D4403S*F(BN, D4504S*F(BN, and SX models are a testament to the company’s dedication to quality, safety, and efficiency in water heating technology. With their innovative features, user-friendly design, and long-lasting durability, these water heaters are well-suited to meet the ever-evolving demands of modern households and commercial settings alike. As homeowners and businesses continue seeking reliable hot water solutions, Bradford-White stands out as a trusted choice in the industry.
Top Page Image Contents