Provide proper | Bradford-White Corp D38T155 instruction

SERVICE PROCEDURE D24-III

Main Burner Operation Testing

DANGER

120 volt exposure. To avoid personal injury, use caution while performing this procedure.

CAUTION

Be Careful When Making Voltage

Measurements or Jumping Terminals

Not to Damage or Deform Connectors or

Connector Pins.

Condition:

Main burner short cycle

Check gas (line) pressure to the
water heater.
Minimum line pressure should be				Determine cause of incorrect gas
5.5" W.C.				pressure and correct.
Is gas pressure within proper
specification? (see photo 16)


Check venting conditions,
clogged vent, down drafts or		N		Correct improper
negative building pressure				venting condition.
Is vent system okay?


Is there sufficient combustion air		N		Provide proper
being supplied to the water				combustion air to
being supplied to the water				combustion air to
heater?				water heater.
	Y
	Y

Check for unstable pilot flame or
oxidize flame rod on pilot				Line gas
causing weak pilot signal				Line gas
(See page 9)				pressure port


Check burner tubes for scale or
debris build-up. Clean burner as
necessary.
(see page 12)


Check tank flues for blockage or			16
debris build-up causing			16
restriction.
(see page 14)

Manifold

Pressure Port

Page 11

Commerical 24 Volt Flue Damper series Water Heater, D38T155 specifications

Bradford-White Corporation is recognized for producing high-quality water heating solutions, and one of the standout products in their lineup is the D38T155 Commercial 24 Volt Flue Damper Series Water Heater. This water heater exemplifies the company’s commitment to efficiency, reliability, and advanced technology tailored to meet the demands of commercial establishments.

The D38T155 model features a robust design, engineered to provide consistent hot water delivery for a range of commercial applications. With a 38-gallon capacity, it is ideal for small to medium-sized businesses, including restaurants, hotels, and other facilities that require dependable access to hot water.

One of the key features of the D38T155 is its 24-volt flue damper system, which enhances energy efficiency. This technology prevents heat loss by closing the damper when the water heater is not in operation. As a result, the unit minimizes energy waste, contributes to lower utility bills, and simplifies compliance with stringent energy regulations. The flue damper's precision operation ensures that only the required amount of energy is utilized, optimizing performance.

The water heater is also equipped with a direct vent design. This allows for the safe venting of combustion gases, making it suitable for indoor installations while ensuring the surrounding environment remains safe and free of harmful emissions. The advanced insulation technology utilized within the tank further preserves heat, reducing the frequency of heating cycles and extending the lifecycle of the appliance.

In terms of maintenance, the D38T155 is designed with accessibility in mind. Its components are placed for easy access, allowing maintenance personnel to perform inspections and repairs with minimal disruption. This user-friendly design ensures that downtime is kept to a minimum, effectively supporting the operational needs of commercial facilities.

The Bradford-White D38T155 also showcases durability through its high-quality materials and comprehensive manufacturing process. Built with a glass-lined tank, it provides excellent corrosion resistance, prolonging the life of the water heater.

In summary, the Bradford-White D38T155 Commercial 24 Volt Flue Damper Series Water Heater combines advanced technology, energy efficiency, and reliable performance. With its user-centric design and durable construction, it stands as an optimal solution for businesses looking to meet their hot water needs effectively and economically.