Bradford-White Corp PDX250T6*F(BN, PDX75S70F(B, CX), C)*(N, PDX65S65F(B warranty Specifications

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PDX Series

Specifications

Power supply

Dedicated 115VAC, 60 Hz, 15A

 

 

Gas Supply Pipe

Minimum 1/2" NPT (schedule 40 black iron pipe recommended)

 

 

Approved Gas Type

Natural or Propane. Unit must match gas type supplied.

 

 

Gas Pressure

5.0" W.C. min. for Nat gas, 11.0" W.C. min. for L.P. gas, 14.0" W.C. maximum (Nat. & L.P.)

 

 

Venting System

Power vent through the wall or vertical through the roof

 

 

Approved Vent Materials

PVC, CPVC or ABS

 

 

Minimum Clearance

18" from top, 24" from front, 4" sides and rear.

for Servicing

 

 

 

Water Supply Pressure

150 PSI maximum allowable working pressure. Check local codes for supply pressure

 

 

Thermal well TCO Limit

Residential 188°F (87°C), Commercial 199°F (93°C)

 

 

Residential Temperature

60°F (16°C) to 160°F (71°C) (Approximate temperatures)

Set Point Range

 

Commercial Temperature

80°F (27°C) to 180°F (82°C) (Approximate temperatures)

Set Point Range

 

Blower Temperature

Normally closed, opens @ 165°F (74°C), auto reset @ 130°F (54°C).

Switch

 

 

 

Pressure switch

Exhaust-Normally open, closes on vacuum increase @ -1.30.

Intake-Normally closed, opens on vacuum increase @ -1.15.

 

 

 

Blower

115VAC, 60Hz, 3.1 amps.

 

 

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Contents Service Manual Denotes Warranty YearsTable of Contents PDX Series Introduction Tools Required for Service How to Use This ManualSpecifications PDX Series Control Timings Power up Sequence Sequence of OperationAbnormal Operation Pressure Switch/Blower Temperature Fault Green LED Indicator TroubleshootingProbable Cause Service Status Procedure LED StatusTroubleshooting LED Status Burner Inspection and Air Shutter Adjustment Cast Iron Burner Air Shutter AdjustmentAir Shutter Nut Burner Cleaning Burner Surface area Feedline nut Pilot tubing nut Port areaFeedline nut Pilot tubing nut Ferrule Pilot Inspection, Testing and ReplacementIgniter/flame Sense wire OrificeExhaust Pressure Switch Testing Volt potential exposure. Use cautionMaking voltage checks to avoid personal injury From blower housing Exhaust Pressure Switch ReplacementSlide pressure switch in direction To avoid personal injuryTo call for heat, this will start the blower Inlet Pressure SwitchSwitch for blockage Is there blockage? SeeInlet Pressure Switch Replacement Remove screwsBlower Testing Volt potential exposure. Use caution whenRemove exhaust Blower InstallationBlower removal Blower Cord Sets Blower Mounting ScrewsBlower Temperature Switch Testing Blower Temperature Switch Replacement Gas Control Testing Thermal Well TestingIf Control has gone into TCO lockout due to Determine Water Temperature Inside Tank Sensor Resistance at Various TemperaturesGas Control & Thermal Well Removal From Water Heater Gas Control Removal From Thermal WellGas Control Assembly to Thermal Well Flammable Vapor Device Testing Safety Circuit Voltage Trace Shown in photo Wires as shown ControlVAC Circuit Trace Across black & white YDip Tube Inspection and Replacement Anode Inspection and Replacement Flue baffle Inner Door Removal Procedure Installation of Inner Door With Gasket Installation of inner door with gasket from Glossary of Terms Parts List Parts@bradfordwhite.com Techserv@bradfordwhite.com
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