Bradford-White Corp PDX Series Powered Direct Vent Gas Water Heaters, X), PDX75S70F(B Parts List

Page 39

PDX Series

Parts List

 

 

1.

Blower Assembly

15.

Hot Water Outlet Anode

28.

Screw-#8-18 x ¾ HWH

41.

Gas Pilot Orifice (Nat.)

2.

Blower Temp. Switch

16.

Cold Water Inlet Diptube

29.

Brass Drain Valve

42.

Gas Feedline (Nat.)

3.

Exhaust Pressure Switch

17.

Flue Baffle

30.

Flammable Vapor Sensor

43.

Gas Burner Assy (L.P.)

4.

Inlet Pressure Switch

18.

Blower Harness

31.

Sensor Harness

44.

Cast Iron Burner (L.P.)

5.

Blower Gasket

19.

T&P Relief Valve

32.

Flammable Vapor Sensor

45.

Gas Pilot Assy (L.P.)

6.

Tee and Vent Pipe Assy.

20.

¾ NPT PLUg

 

Clip

46.

Gas Pilot Orifice (L.P.)

7.

Vent Adapter with Term.

21.

Direct Vent Boot

33.

Thermal Well

47.

Air Shutter (L.P.)

8.

Intake Terminal

 

Escutcheon

34.

Gas Control Kit

48.

LP Gas Feedline (L.P.)

9.

Vent Terminal Elbow

22.

Air Intake Boot

35.

Gas Control Service tool

49.

Air Shutter Nut (L.P.)

10.

Exhaust Adapter

23.

Air Intake Boot Gasket

36.

Gas Control

50.

Main Burner Orifice (L.P.)

11.

Condensate Hose Kit

24.

Outer Door

37.

Gas Burner Assy (Nat.)

51.

Inner Door Gasket

12.

Flue Reducer

25.

Right Side Inner Door

38.

Gas BN burner (Nat.)

52.

Heat Trap Insert kit

13.

Heat Trap Insert (outlet)

26.

Left Side Inner Door

39.

Main Burner Orifice (Nat.)

53.

Mixing Valve

14.

Heat Trap Insert (inlet)

27.

Screw-#10-12 x ¾ HWH

40.

Gas Pilot Assembly (Nat.)

 

 

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Contents Denotes Warranty Years Service ManualTable of Contents PDX Series Introduction How to Use This Manual Tools Required for ServiceSpecifications PDX Series Control Timings Sequence of Operation Power up SequenceAbnormal Operation Pressure Switch/Blower Temperature Fault LED Status TroubleshootingProbable Cause Service Status Procedure Green LED IndicatorTroubleshooting LED Status Burner Inspection and Air Shutter Adjustment Cast Iron Burner Air Shutter AdjustmentAir Shutter Nut Burner Surface area Feedline nut Pilot tubing nut Port area Burner CleaningOrifice Pilot Inspection, Testing and ReplacementIgniter/flame Sense wire Feedline nut Pilot tubing nut FerruleExhaust Pressure Switch Testing Volt potential exposure. Use cautionMaking voltage checks to avoid personal injury To avoid personal injury Exhaust Pressure Switch ReplacementSlide pressure switch in direction From blower housingSee Inlet Pressure SwitchSwitch for blockage Is there blockage? To call for heat, this will start the blowerRemove screws Inlet Pressure Switch ReplacementVolt potential exposure. Use caution when Blower TestingBlower Cord Sets Blower Mounting Screws Blower InstallationBlower removal Remove exhaustBlower Temperature Switch Testing Blower Temperature Switch Replacement Gas Control Testing Thermal Well TestingIf Control has gone into TCO lockout due to Sensor Resistance at Various Temperatures Determine Water Temperature Inside TankGas Control Removal From Thermal Well Gas Control & Thermal Well Removal From Water HeaterGas Control Assembly to Thermal Well Flammable Vapor Device Testing Safety Circuit Voltage Trace Across black & white Y Wires as shown ControlVAC Circuit Trace Shown in photoDip 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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