Flammable vapor
sensor harness
Flammable vapor
sensor harness

Flammable Vapor Sensor Testing

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

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 operating manual.

Flammable Vapor Sensor Testing

CAUTION

Do not use standard multi-meter probes for this testing. Doing so will damage the connector. 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.

Step 3. Using a multi-meter set to the ohms setting, measure the resistance of the flammable vapor sensor and resettable ther- mal switch. The resistance must be between 3,000 and 48,000 ohms. If the resistance is out of this range, verify that the re- settable thermal switch has not been tripped. If it hasn’t,

the thermal switch.

115 VAC Circuit Trace

Step 1. Verify 115VAC and proper polarity are at the wall outlet.

Step 2. With the water heater plugged in and the gas control power switch in the “ON” position verify LED status.

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Bradford-White Corp U1TW40S*FRN, UTW450S60FR*N, UTW465S60FR*N, U2TW50T*FRN Flammable Vapor Sensor Testing, VAC Circuit Trace

U1TW40S*FRN, U2TW65T*FRN, UTW450S60FR*N, U1TW60T*FRN, UTW465S60FR*N specifications

Bradford-White Corp has long been a reputable manufacturer in the water heating industry, known for delivering high-quality and reliable products. Among their diverse range of water heaters, the U1TW40S*FRN, U1TW50S*FRN, U1TW60T*FRN, UTW465S60FR*N, and UTW450S60FR*N models stand out for their advanced features and technologies designed to meet varying hot water demands.

The U1TW series, including the U1TW40S*FRN, U1TW50S*FRN, and U1TW60T*FRN models, are well-suited for residential applications. Each model provides different capacities, with the numbers referring to the gallon capacities. The U1TW40S*FRN offers 40 gallons, the U1TW50S*FRN 50 gallons, and the U1TW60T*FRN 60 gallons, making them ideal for households varying in size and hot water requirements.

These models are equipped with Bradford-White's advanced Vitraglas® tank lining, a unique feature that provides superior protection against corrosion and extends the unit's lifespan by ensuring the inner tank remains free from damage. Additionally, their efficient heating elements and optimal insulation minimize heat loss, enhancing energy savings.

The UTW series, specifically the UTW465S60FR*N and UTW450S60FR*N, feature innovative technologies such as a durable stainless steel construction that offers robust performance while resisting the harmful effects of rust and degradation. This is particularly beneficial in areas with hard water, where mineral buildup can be problematic.

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In conclusion, Bradford-White’s U1TW and UTW series water heaters are engineered to offer efficiency, durability, and user-friendly operation. With their advanced technology, excellent insulation, and robust construction, these models are a solid choice for anyone looking to invest in reliable hot water solutions for their home. Whether for a busy family or more modest hot water needs, these units provide peace of mind and consistent performance.