Bradford-White Corp PDX65S65F(B, PDX75S70F(B, CX), C)*(N, PDX275T6*F(BN Flue baffle, Blower

Page 34

PDX Series

PDX SERVICE PROCEDURE XII

Flue Baffle

Inspection and replacement

 

Remove blower to gain access to

 

Disconnect vent

 

 

system from exhaust

flue baffle

adapter.

34

 

 

 

 

 

Step 1.

 

 

 

Position gas control power switch to the “OFF” position and

 

 

unplug blower from wall outlet.

 

Step 2.

Disconnect vent system from exhaust adapter on top of blower.

Step 3.

Disconnect intake air piping.

 

Step 4.

Unplug cord sets from blower. (see photo 34).

 

Step 5.

Remove the three blower mounting screws

Blower

 

 

(¼" nut driver) (see photo 34).

 

 

Cord Sets

Step 6.

Remove blower with gasket from water heater.

35

Step 7.

Remove flue baffle from Heater (see photo 36).

 

Step 8.

Inspect baffle for deterioration, missing restrictors.

 

 

 

Clean any scale or debris build up. Replace with new baffle as

 

 

necessary.

 

Step 9.

Reinstall baffle into flue tube. Be sure baffle

 

 

 

hanger tabs are inserted into notch location at the

 

 

 

top of the flue tube (see photos 36 & 37).

Remove support

Step 10.

 

 

 

bracket

Check Burner to insure no scale has accumulated during this

 

 

operation. See burner cleaning procedure on page 15.

 

Step 11.

Reinstall blower on water heater. Connect vent

 

 

 

system and cords set to blower. Plug water heater

 

 

 

into wall outlet.

 

Step 12.

To resume operation follow the lighting instruction

 

 

 

located on the lighting instruction label or the lighting instruction

 

 

located in the installation and operation

 

 

 

manual.

 

36

 

 

 

 

 

 

 

Flue Baffle

 

 

 

37

 

38

Blower Mounting

Screws

Baffle shown

installed in flue

tube notch.

Flue tube

notch

Page 34

34

Image 34
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 Cast Iron Burner Air Shutter Adjustment Burner Inspection and 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 OrificeVolt potential exposure. Use caution Exhaust Pressure Switch TestingMaking 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 Thermal Well Testing Gas Control 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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