Bradford-White Corp PDV100S150, D80T725, D65T625, PDV100S250, PDV100T360, PDV80S250, PDV80T300 Probe

Page 32

SERVICE PROCEDURE PDV24-III

Pilot 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:

Pilot lights, no or low flame signal. Control Display shows “4” or “62” for Error Codes (Service Needed). Control continues to spark until system “Lock Out”.

Main burner will not light.

Check for loose or damaged flame sense lead from pilot to module. (see illustration to the right). Is flame sense lead okay?

Y

Check for loose or damaged ground wire(s) from gas valve to control board. Check continuity of wires with ohmeter. Are ground wires okay?

Y

N

N

 

 

Meter

Repair wire lead

 

Probe

Multi-meter set

Flame rod

or replace pilot.

 

to check

 

 

 

 

continuity.

 

Repair ground

wire(s) or replace

as needed.

Meter

Probe

Check venting conditions

(vent length & number of elbows)

Is vent system okay?

Y

Is heater condensing causing pilot

interruption?

N

The microamp output of the pilot may be checked by entering “Service Mode” on the water heater display and pressing “Select” until the flame current is shown. The control must be in the heating mode with the pilot lit to display a reading. See section on accessing service mode on the water heater display.

Micro-amp readings

N

Y

Correct improper venting condition.

Make sure pilot shield is in

place and not bent or damaged (refer to section on main burner and pilot assembly) . Determine cause for condensing and correct. Under sized water heater or high demand periods

NOTE:

Check continuity of flame sense

lead to flame rod. If no

continuity, clean pilot flame rod or replace pilot. Check pilot flame appearance - if weak check for clogged pilot orifice, bent pilot tubing, or low inlet gas pressure.

(see above illustration)

Checking pilot flame sensor wire and flame

rod for continuity.

 

µA

Heating

Flame Current

Status Operational

SELECT

SET

Pilot flame sensor microamp output shown in display using service mode.

Pilot must be lit to get reading.

0.000 Micro Amp =

Replace control board or pilot if wire is

 

damaged.

1.0 micro amp or less =

Clean pilot flame rod or replace pilot.

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Contents Service Manual Table of Contents Features of PDV-S Model Series Features of PDV-T Model SeriesFeatures of Induced Draft Models Features of Honeywell Integrated Controls SystemTools Required for Service Specifications Sequence of Operation Troubleshooting Verify Primary and Secondary voltage at the control boardError code #63 on display. See Main Burner short Pressing Select button will change display to next mode Max Setpoint Display/Change Setpoint Display/Change Software Version Display only SET ExitingSELECTServiceSETMode Display of Water TemperatureTo Display and Change Temperature Setpoint To Display Flame Sense Current of the Pilot Flame SensorSetpoint Flashes Idle Status Operational Select SET Error Codes and Error History Display Error Code HistoryTo view previous error codes ExitingSELECTServiceSETMode Error Code Definitions Resetting Error Codes in Hard Lockout Condition Service Procedure PDV24-I Unplug or disconnect electrical power to the water heaterService Procedure PDV24-I Upper Sensor Lower SensorService Procedure PDV23-II Service Procedure PDV24-II Service Procedure PDV24-II Service Procedure PDV24-III ConditionCondition Error code 57 Flame Rod Shorted To Ground Probe Service Procedure PDV24-IV To control boardCorrect improper venting condition Manifold Pressure Port Service Procedure PDV24-V PDV S&T ModelsPDV S&T Models PDV S&T Models Induced Draft Models Main Burner RemovalPilot Burner Removal Pilot Burner InspectionRemove lower sensor Service Procedure PDV24-VIControl board replacement Service Procedure PDV24-VII Service Procedure PDV24-VIII PDV-S PDV S PDV-S PDV-T PDV T PDV-T Induced Draft Models Induced Draft Models Induced Draft Models BTU/H CO2ECO GFI

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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