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Bradford White ECO-DEFENDER U130S*FRN, Руководство по обслуживанию

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The Bradford White

Ultra Low NOx Gas Water Heaters

Page Service Procedure 

Introduction

   3

- - -

Gas Control Troubleshooting Chart

   5

- - -

Tools Required for Service

   4

- - -

Burner and Inner Door Gasket Removal, Inspection, Replacement 

and Installation

   7

ED-I

Thermopile Testing and Replacement

  10

ED-II

Pilot Assembly Inspection, Cleaning and Replacement

  12

ED-III

Igniter and Electrode Testing and Replacement

  13

ED-IV

Gas Control Replacement Thermal Well and Chamber Door Sensor

Testing and Replacement

  14

ED-V

Burner Operation Inspection,  Cleaning and Replacement

  19

ED-VI

Resettable Thermal Switch Testing and Replacement

  21

ED-VII

ScreenLok    Flame Arrestor Cleaning

  23 

ED-VIII

Dip Tube and Anode Inspection and Replacement

  24

ED-IX

Generic Parts List

  26

- - -

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Содержание ECO-DEFENDER U130S*FRN

Страница 1: ...ers Save this manual for future reference Manual 47132A The Bradford White R U150L FRN U1504S FRN U430T FRN U440T FRN U4403S FRN U4503 FRN U1XR403S FRN Denotes Warranty Years U130T FRN U130S FRN U140T...

Страница 2: ...0 ED II Pilot Assembly Inspection Cleaning and Replacement 12 ED III Igniter and Electrode Testing and Replacement 13 ED IV Gas Control Replacement Thermal Well and Chamber Door Sensor Testing and Rep...

Страница 3: ...s Additional air is drawn through the openings in the jacket This air travels down and around the combustion chamber and enters through holes in the bottom of the corrosion resistant combustion chambe...

Страница 4: ...al values The meter you select must have the capability to measure volts AC volts DC Amps micro amps and ohms Electronic Probes In some cases standard multi meter probes will damage or simply not be e...

Страница 5: ...ut before attempting to relight Set point knob was turned to OFF position LED will go out and the control will function normally when the pilot is lit Two flashes and three second pause Weak pilot fla...

Страница 6: ...Possible electrical short See page 18 Seven flashes and three second pause Gas valve electronic fault detected 1 Control needs to be reset 2 Control is wet or physically damaged 1 Turn gas control kno...

Страница 7: ...e piece g Remove burner and inner door and inspect per step 4 Step 4 Fully inspect burner and inner door gaskets for the following Tears Other imperfections that will inhibit proper seal Missing Mater...

Страница 8: ...ws with the built in washer to secure the left side of the burner door in place DO NOT OVER TIGHTEN SCREWS Step 9 Position thermopile wires pilot tube and igniter wire against burner door flange gaske...

Страница 9: ...e to resettable thermal switch See photo in step 3 Note the white wire needs to be connected to the thermal switch and the red wire needs to be connected to the red wire from the thermopile Step 13 Re...

Страница 10: ...fe the thermopile should be replaced with a genuine Honeywell thermopile BWC P N 233 47063 00 CLOSED CIRCUIT THERMOPILE TESTING Honeywell Control SERVICE PROCEDURE ED II Thermopile Testing and Replace...

Страница 11: ...ten the nut to the pilot bracket 7 16 wrench Position thermopile wire against left side inner door flange at its original position Connect the red thermopile wire to the red lead from the wire harness...

Страница 12: ...the pilot must be replaced Step 7 Inspect pilot orifice a Remove 7 16 nut from bottom of pilot assembly b Remove pilot tube and pilot orifice c inspect pilot orifice for blockage must be cleaned or re...

Страница 13: ...thru the sight glass If a spark is present the circuit is OK If there is no spark proceed to step 3 Step 3 Remove white wire from igniter Hold the igniter lead from the gas valve to an unpainted surfa...

Страница 14: ...OCEDURE ED V Gas Control Replacement Thermal Well and Chamber Door Sensor Testing and Replacement Page 14 Once the thermal well resistance values are known the water temperature must also be known to...

Страница 15: ...le If temperature of water is 84 F then the resistance through the sensor would be 8449 see shaded area NOTE Sensor resistance increases as the temperature falls WARNING Stored water may be HOT when p...

Страница 16: ...ontrol service tool 239 45991 00 available from your BWC parts supplier Insert tool into back of gas control see photos below Follow the steps below allows removal gas control from thermal well withou...

Страница 17: ...tioned as shown in photo 3 for proper control alignment Step 2 Route wire leads back into relief opening see photo 3 Step 3 Align slots located on thermal well flange with tabs located on back of gas...

Страница 18: ...139 59 68 173 112 68 77 137 90 77 86 110 72 86 104 89 59 104 113 73 48 113 122 60 39 122 131 49 32 Sensor Resistance at Various Temperatures SERVICE PROCEDURE ED V Gas Control Replacement Thermal Wel...

Страница 19: ...heater With the inner door removed the Bradford White Defender Safety System will be inactivated If flammable vapors are present a fire or explosion may result causing property damage personal injury...

Страница 20: ...Step 8 Reassemble burner Step 9 Inspect combustion chamber area of heater prior to reinstallation of burner assembly If cleaning is required refer to SERVICE PROCEDURE ED VIII Step 10 Reinstall burne...

Страница 21: ...witch is designed to open at predetermined temperatures An open switch can be reset by depressing the red colored button located at the center of the switch The overheating condition must be determine...

Страница 22: ...sure contact surface of resettable thermal switch and manifold mount are free of any debris Secure resettable thermal switch into place using screws from step 6 DO NOT OVER TIGHTEN SCREWS Step 8 Bend...

Страница 23: ...he areas that are not covered by the secondary air restrictor plate Using a soft brush clear jacket openings of any dirt dust restrictions or other obstructions Step 5 Remove any debris from burner as...

Страница 24: ...the bottom of the dip tube should be open and free of any blockage Anti siphon hole located approximately 6 from the bottom of nipple should be free of any blockage Any damage such as cracks restrict...

Страница 25: ...normal If depletion is of the original anode diameter approximately diameter replacement is recommended If any of thesteel core of the anode is exposed replacement is recommended Step 6 Upon completio...

Страница 26: ...ble Gas Feed Line 16 Pilot Assembly 17 Screw 8 18 x Hex Washer Head 18 Resettable Thermal Switch 19 Screw 6 20 x 3 8 PHCR 20 Screw 8 18 x Hex Washer Head 21 Manifold Mount 22 Complete Right Side Inner...

Страница 27: ...27...

Страница 28: ...Email parts bradfordwhite com techserv bradfordwhite com www bradfordwhite com...

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