SERVICE PROCEDURE PDV24-IV

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 cycles.

Control Display may show error

code “63, 57, or 4” and be in

“Soft Lockout” state.

Check gas (line) pressure to the

water heater.

Minimum line pressure should be

5.5" W.C.

Is gas pressure within proper

specification? (see photo at right)

Y

Check venting conditions. (blocked intake or exhaust terminal, excessive vent length, or number of elbows)

Verify pressure switch is not cycling (see “Pressure Switch Testing”.

Is vent system okay?

Y

Is there sufficient combustion air

being supplied to the water

heater?

Y

Line gas

pressure port

N

Determine cause of

incorrect gas

 

 

 

pressure and correct.

NCorrect improper venting condition.

Manifold

Pressure Port

Connect hose barb to manifold

pressure port, then connect

monometer to measure gas manifold

pressure.

PDV(S&T) MODELS: Check intake piping and terminal.

N

INDUCED DRAFT MODELS: Make sure there is sufficient air supply to utility room.

Check for unstable pilot flame or oxidized

flame rod on pilot causing weak pilot signal. Make sure pilot shield is in place and does not touch pilot flame sensor. (see “pilot inspection”)

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

(see “main burner inspection”)

Check tank flues for blockage or

debris build-up causing

restriction.

(see “flue baffle inspection”)

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Bradford-White Corp PDV100T360, D80T725, D65T625, PDV100S150 Correct improper venting condition Manifold Pressure Port
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PDV80T300, PDV100S150, PDV100T360, PDV80S150, D65T625 specifications

Bradford-White Corporation is renowned for its quality water heating solutions, with a diverse range of products designed to meet various residential and commercial needs. Among their stellar offerings are the D80T725, PDV100S200, PDV100S250, PDV80S250, and PDV802200 models, each equipped with advanced technologies and features that set them apart in the market.

The D80T725 is an innovative 80-gallon water heater that employs a powerful 75,000 BTU burner, ensuring rapid water heating for larger households. One of its key features is the Defender Safety System, which provides exceptional protection against potential hazards. The advanced electronic control system enhances efficiency and reliability, making it an ideal choice for energy-conscious consumers. Additionally, the tank's unique insulation helps maintain water temperature longer, reducing energy costs.

Moving to the PDV series, the PDV100S200 and PDV100S250 are dynamic, direct vent gas water heaters with capacities of 100 gallons and impressive BTU inputs. These models utilize a proper venting system that draws air from outside, ensuring that indoor air quality remains uncompromised. Both models feature Bradford-White's patented hydrojet total performance system, improving heat transfer by minimizing sediment buildup. This technology prolongs the lifespan of the unit while maximizing energy efficiency.

The PDV80S250, like its PDV counterparts, also utilizes direct venting technology for enhanced safety and efficiency. With an 80-gallon capacity and a robust 250,000 BTU input, this model is designed for businesses and larger households requiring significant hot water availability. The use of cutting-edge insulation technology in these models reduces standby heat loss, which translates to substantial savings on energy bills.

Lastly, the PDV802200 stands out with similar advanced features but offers a higher capacity of 80 gallons, making it a perfect solution for commercial applications. It strikes a balance between performance and reliability, ensuring consistent hot water delivery even during peak demand. The integration of robust safety features and user-friendly controls make it easy for facility managers to operate and maintain.

In summary, whether you opt for the D80T725 or one of the PDV models, you can expect a blend of performance, efficiency, and advanced technology. Bradford-White's commitment to quality and innovation ensures that each product meets the demands of modern consumers, making them a leading choice in the water heating industry.
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