Bradford-White Corp PE2XR504T*F(BN,SX) Gas Control Assembly, Flammable Vapor Sensor Testing

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Gas Control Assembly

Gas Control Assembly to the Thermal Well (cont’d)

Step 6. Reconnect the wire harnesses to the gas control.

Wire harnesses

Step 7. Reconnect the gas piping to the gas control. Restore the gas supply and check for gas leaks.

Step 8. 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 Operation manual.

Flammable Vapor Sensor Testing

Note: The Flammable Vapor Sensor Testing section is in addition to the Defender Atmospheric service manual, p/n 238-44943-00.

CAUTION

Do not use standard multi-meter probes for this testing. Doing so will damage the con- nector. Use special pin type electronic probes or small diameter wire pins inserted into connector.

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

Gas control power

switch

Step 2. Disconnect the flammable vapor sensor harness from the gas control.

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Contents Service Manual Table of Contents Page Page Introduction Bradford White Defender Safety SystemHow to Use this Manual How to Use this ManualSpecifications SpecificationsControl Timings Relay Energized Power Up SequenceSequence of Operation Normal Heating SequenceNormal Heating Sequence cont’d Abnormal Operation cont’d Temperature Sensor Fault Safety Circuit FaultTrial for Ignition Fault Abnormal Operation cont’d Flame Sensing Fault LED Status Control Status Probable Cause Service Procedure TroubleshootingTroubleshooting Gas Valve / Control Model LED Status Accessory Module Probable Cause Burner Maintenance Burner Cleaning ProcedureBurner Inspection Unscrew the burner from the main burner orifice Pilot Inspection, Testing, and Replacement Burner Cleaning Procedure cont’dPilot Inspection, Testing, and Replacement cont’d Pilot MaintenanceThermal Well Testing Thermal Well Testing Thermal Well Testing cont’dDetermine Water Temperature Inside Tank Determine Tank Temperature Determine Water Temperature Inside Tank cont’dSensor Resistance at Various Temperatures Gas Control & Thermal Well Removal From Water Heater Component DisassemblyGas Control Removal From Thermal Well Gas Control RemovalGas Control Removal From Thermal Well cont’d Gas Control Assembly to the Thermal WellGas Control Assembly Gas Control Assembly to the Thermal Well cont’dFlammable Vapor Sensor Testing VAC Circuit Trace Flammable Vapor Sensor TestingFlammable Vapor Sensor Testing cont’d Relay ReplacementRelay Replacement cont’d Relay ReplacementCommon Terms Common TermsPart Name and Description Parts ListParts@bradfordwhite.com Techserv@bradfordwhite.com

PE4403S*F(BN,SX), PE440T*F(BN,SX), PE4503*F(BN,SX), PE2XR504T*F(BN,SX) specifications

Bradford-White Corporation is a renowned manufacturer of water heating and storage products, well-regarded for its commitment to quality and innovation. Among its diverse product lineup, the PE2XR504T*F(BN,SX), PE4503*F(BN,SX), PE440T*F(BN,SX), and PE4403S*F(BN,SX) models stand out for their technology, efficiency, and performance. These commercial electric water heaters are designed for demanding applications, making them ideal for various settings, including restaurants, hotels, and industrial facilities.

One of the most notable features across these models is the use of advanced heating elements, which are engineered to provide rapid recovery and consistent hot water temperatures. This capability ensures that businesses can rely on a continuous supply of hot water, particularly during peak demand periods. The tanks are constructed with high-quality materials that guarantee durability and longevity, reducing the need for frequent replacements.

Another key feature is the digital temperature control system, which allows users to easily set and maintain the desired water temperature with precision. This technology not only enhances user convenience but also contributes to energy efficiency, allowing businesses to operate within sustainable parameters while minimizing energy costs. Additionally, certain models are equipped with Bradford-White’s patented Hydrojet® Total Performance System, which promotes superior tank cleaning and reduces sediment buildup, thereby improving efficiency and prolonging the life of the heater.

Safety is paramount in the design of these units. The incorporation of advanced safety features, including a self-resetting thermal cutoff and a high limit switch, helps protect against overheating. Furthermore, these models are built with a robust insulation system, which reduces heat loss and improves overall energy efficiency.

In terms of versatility, the PE2XR504T*F(BN,SX), PE4503*F(BN,SX), PE440T*F(BN,SX), and PE4403S*F(BN,SX) can be easily integrated into existing plumbing systems. They are available in various capacities and configurations, catering to a wide range of commercial needs. With their combination of cutting-edge technology, reliability, and safety features, these Bradford-White models are an excellent investment for any commercial establishment seeking efficient and dependable hot water solutions.
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