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Water Heater Service Report

Date

_______________

Service Provider

_____________________________

Phone Number

_______________________________

Model Number

_______________________________

Serial Number

_____________________________

Intake Venting (PVC, CPVC):

Intake Vent size 3”, 4”

______

Intake 90° Elbows (qty)

______

Intake 45° Elbows (qty) ______

Exhaust Vent Size 6”,7”,8”

Length of Straight Pipe

(Intake)

________

Gas Line:

Size & Material ______________
Distance from Meter to Water

Heater _____________________

Gas Pressure:

Static _____________________
Running Inlet _______________
Manifold ___________________

Venturi:

Setting from Bottom in Turns

____________________________

Electrical:

Line Voltage ________________

Low Voltage ________________
Flame Sense (μA) ___________

Polarity ____________________
Spark Gap _________________

Error Codes on Control Display ______________________________________________________________________

Combustion:

____________________

CO ____________________

Installation Site Name & Address:

________________________________

Installation Site Contact Name & Phone Number

________________________________

Содержание UCG-100H-199-3N

Страница 1: ...L Troubleshooting Guide and Instructions for Service To be performed ONLY by qualified service providers Effective November 2015 ECO 7964 Models Covered by This Manual UCG 80 100 H399 N X Denotes Warr...

Страница 2: ...ce Procedure IV Gas Valve Replacement 27 Service Procedure V Blower Testing and Replacement 28 Service Procedure VI Flame Sensor Testing and Replacement 30 Service Procedure VII Spark Rod Gap Adjustme...

Страница 3: ...backed combustion chamber This turbulence causes a thorough mixing of gas and air for optimum combustion The combustion gases then travel through a two pass flue system keeping the gases moving at a h...

Страница 4: ...given component In some difficult to diagnose conditions it may be necessary to isolate the heater from the vent system to determine root cause Contact Technical support immediately if diagnosis is no...

Страница 5: ...ion and blower operation x Reduced number of parts for servicing and wiring x Plug in wiring reduces chance of miswiring x Burner ignition with direct spark ignition A high voltage spark jumps from th...

Страница 6: ...00 77 8 10 52 55 69 63 30 28 63 1 1 657 UCG80H399 399 000 80 68 8 10 44 47 61 55 30 28 55 1 1 Model Description Dimensions MM Model No Input Rate KW Storage Capacity Liters A Floor to Top of Vent B Ve...

Страница 7: ...nsor inside well for easy replacement of sensor Control Display Digital display 24 volts temperature Range 70 180 degree F Used to set tank temperature deg F or deg C show operating status display err...

Страница 8: ...length of straight vent pipe in feet required for the intake 2 Add 5 feet of venting for every 90 elbow 3 Add 2 feet of venting for every 45 elbow 4 Total vent length cannot exceed Max Intake Vent Le...

Страница 9: ...ormally closed opens then the ignition sequence will not start and an error code 67 Vent safety switch failed to close open will be shown on the display 5 Steady State Operation Burner continues to op...

Страница 10: ...reset is accomplished by depressing the lower right button under Reset for 3 seconds 2 ERROR CODE 80 a If the top of the tank should exceed 207 F then the high limit control will shut off the burner a...

Страница 11: ...at transformer across black and white wires should be 110 120 VAC Check line cord with volt meter Replace line cord if defective Verify secondary voltage at the control board Refer to control board i...

Страница 12: ...proximately from metal ground with insulated pliers during the ignition cycle 3 second spark trial period Is there spark to ground Check resistance of high voltage cable Resistance should be 0 1 ohms...

Страница 13: ...urrent in microamps when the burner is operating Step 3 Press the lower right Next button and the display will show flash and show the number of any Alert codes These are not currently used WARNING Th...

Страница 14: ...n and the display will show the temperature sensor reading Step 6 End of screens in Diagnostic Mode Press Done button on lower left to exit Diagnostic Mode back to DHW setpoint in the User Mode NOTICE...

Страница 15: ...ecked x If the line voltage is satisfactory check the output from the transformer to make sure it is 22 26 volts x Replace transformer or wiring if defective 53 AC Inputs phase reversed x Check the mo...

Страница 16: ...sor is wired to the correct terminal x Make sure the ignition cable is not crossing the flame sensor wire or ignition ground wires x If problem persists and all other checks have been verified replace...

Страница 17: ...ting and replacement section Replace sensor if needed Turn power ON to water heater Run water heater through heating cycle and verify proper operation Sensor temperature can be viewed when burner shut...

Страница 18: ...water temperature over 200 F continued from previous page Once cause of overheating condition has been diagnosed and corrected the control may be reset x Reconnect and switch on power to the water he...

Страница 19: ...982 4873 4767 110 4663 4562 4464 4368 4274 4183 4094 4006 3922 3839 120 3758 3679 3602 3527 3453 3382 3312 3244 3177 3112 130 3048 2986 2925 2866 2808 2752 2697 2643 2590 2538 140 2488 2439 2391 2344...

Страница 20: ...ull sensor to remove do not remove well see picture Step 6 Install new sensor assembly into well and reinstall senor clip Step 7 Reconnect the sensor connector to the control board and route the wire...

Страница 21: ...e between 7 14 W C static heater not running See illustrations at right Is gas supply pressure regulator adjustable to maintain proper and stable setting Inadequately sized regulator Adjust gas supply...

Страница 22: ...during the flame establishing period Note Control display must show Heating for operating status Check to see brown and blue wires are properly connected to molex connectors on control harness Can you...

Страница 23: ...m top of heater Step 5 From the gas valve disconnect the gas connection PVC intake venting Silicone tubing and wire harness Step 6 Disconnect wire harnesses flame sensor gas valve and blower Disconnec...

Страница 24: ...re combustion assembly at the burner mounting insert using screws from step 7 on previous page Tighten screws evenly Step 3 Reconnect high voltage cable to spark rod flame sensor blower and gas valve...

Страница 25: ...ess and silicone tubing Step 6 Disconnect wire harness from blower assembly Step 7 Remove the two screws holding each the spark rod and flame sensor in place long reach magnetic Phillips screw driver...

Страница 26: ...ed by any of the above gasket replacement is not required Step 2 Install burner tube with gaskets into burner mounting insert Be sure gasket surfaces are free of debris Step 3 Reconnect the blower gas...

Страница 27: ...bit located as shown below on the venturi mounting flange and remove gas valve from water heater Step 7 Remove any residual gasket material from blower and venturi mounting flange Step 8 Install new...

Страница 28: ...blower motor Is there 6 to 3 0 amps Is blower wheel secured to blower motor shaft Call for technical support Replace blower See Blower Replacement Procedure Refer to ignition module control board illu...

Страница 29: ...lower flange mounting screws 5 32 Allen wrench and remove blower from transition flange Step 9 Remove any residual gasket material from venturi mounting flange and transition flange Step 10 Install ne...

Страница 30: ...there 24 VAC across brown and blue wires coming out of the control harness Flame sensing circuit O K Call for technical support With flame sensor disconnected from ignition module check continuity to...

Страница 31: ...crews magnetic tip long reach Phillips screw driver and remove flame sensor gasket from transition base flange Step 6 Remove any residual gasket material from transition base flange Step 7 Install new...

Страница 32: ...od and burner tube Acceptable spark gap is from 3 16 to 1 4 see photo below Step 3 If spark gap is not between 3 16 to 1 4 the spark rod may be carefully bent by supporting the end near the ceramic in...

Страница 33: ...d Step 5 Remove the 2 mounting screws magnetic tip long reach Phillips screw driver and remove spark rod gasket from transition base flange Step 6 Remove any residual gasket material from transition b...

Страница 34: ...Note It may be necessary to identify wires for proper re connection Step 6 Depress the plastic tabs on the bottom side of the control board first Step 7 Tilt the control panel and slide control hook...

Страница 35: ...tion Contact your plumbing professional to correct this issue Step 4 When no blockage or downdraft issues are present check the continuity of the switch see photo below If there is no continuity prese...

Страница 36: ...s of the original diameter approximately diameter replacement is recommended If any of the steel core of the anode is exposed replacement is recommended Step 6 Upon completion of inspection or subsequ...

Страница 37: ...on the right Step 4 After removing the screw pull the display out of the enclosure Step 5 Once the display is removed disconnect the two mating plugs Step 6 Connect in new display and replace into the...

Страница 38: ...ections are different sizes to prevent interchanging Step 5 Remove the 2 nuts 7 16 nut driver holding the transformer in place and remove transformer from control panel see photo below Step 6 Install...

Страница 39: ...the anode rods for servicing 18 min Vent Tables Intake Only Model Number Max Intake Vent Length feet 3 Max Intake Vent Length feet 4 UCG100H399 25 50 UCG80H399 25 50 WARNING The UCG 80 100 H399 model...

Страница 40: ..._____ Venturi Setting from Bottom in Turns ____________________________ Electrical Line Voltage ________________ Low Voltage ________________ Flame Sense A ___________ Polarity ____________________ Sp...

Страница 41: ...Model 8 Control Display 9 Front Cold Water Inlet 10 Plastic Hole Closure 11 No Handle Brass Drain Valve 12 Cleanout Access Cover 13 Screw 5 16 18 x HH Grade 14 Cleanout Cover 15 T P specify model 16 H...

Страница 42: ...sket Burner specify model 5 Gasket Screw 17 Burner specify model 6 Transistion Tube 18 Burner Mount Assembly 7 Gasket Blower Transition 19 Sight Glass Assembly 8 Gasket Transition Tube 20 Gasket Sight...

Страница 43: ...red under one or more of the following U S Patents 5 277 171 5 341 770 5 372 185 5 485 879 5 574 822 5 596 952 5 660 165 5 682 666 5 761 379 5 943 984 5 954 492 5 988 117 6 056 542 6 142 216 6 442 178...

Страница 44: ...p Notes ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ _________...

Страница 45: ...45...

Страница 46: ...46...

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Страница 48: ...nty bradfordwhite com 800 538 2020 parts bradfordwhite com Sales Technical Support Fax Warranty Technical Support Service Parts Orders 866 690 0961 905 03 0600 905 636 0666 bwccwarranty bradfordwhite...

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