background image

19

 

Ser

vi

ce

 

Proce

du

re

 I

:

 

Th

er

m

o

stat Ci

rc

uit T

e

sting and 

Re

pla

ce

m

e

nt

APPE

N

D

IX

-A

Se

ns

or

 

Re

sistan

ce

 at 

V

a

r

i

o

us T

e

mp

er

atu

re

Be

 

c

a

ref

ul 

w

h

e

n making v

o

ltag

e

 m

e

asu

re

m

e

nts 

or

 jumping t

er

minals n

o

t t

o

 damag

e

 

or

 d

efor

co

nn

ec

t

or

or

 

co

nn

ec

t

or

 pins

.

Draw

 

water

 

fro

m

 

the

 

T&

P

 

va

l

ve

Co

m

pare

 

te

m

perature

 

with

 

te

m

perature

 

oh

m

s

 

chart

 

be

l

ow

E

x

a

m

p

l

e:

 I

f

 

the

 

te

m

perature

 

is

 

84°F,

 

then

 

the

 

resistance

 

through

 

the

 

sensor

 

wou

l

d

 

be

 

8449

 

(see

 

shaded

 

area)

N

ote:

 

Sensor

 

resistance

 

increases

 

as

 

the

 

temperature

 

fa

ll

s

I

n

 

Degrees

 

F

 

°F

 

0

 

1

 

2

 

3

 

4

 

5

 

6

 

7

 

8

 

9

 

40

 

26109

 

25400

 

24712

 

24045

 

23399

 

22771

 

22163

 

21573

 

21000

 

20445

 

50

 

19906

 

19383

 

18876

 

18383

 

17905

 

17440

 

16990

 

16553

 

16128

 

15715

 

60

 

15314

 

14925

 

14548

 

14180

 

13823

 

13477

 

13140

 

12812

 

12494

 

12185

 

70

 

11884

 

11592

 

11308

 

11032

 

10763

 

10502

 

10248

 

10000

 

9760

 

9526

 

80

 

9299

 

9078

 

8862

 

8653

 

8449

 

8250

 

8057

 

7869

 

7685

 

7507

 

90

 

7333

 

7165

 

7000

 

6839

 

6683

 

6531

 

6383

 

6238

 

6098

 

5961

 

100

 

5827

 

5697

 

5570

 

5446

 

5326

 

5208

 

5094

 

4982

 

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

 

2298

 

2253

 

2209

 

2166

 

2124

 

2083

 

150

 

2043

 

2004

 

1966

 

1928

 

1891

 

1856

 

1820

 

1786

 

1753

 

1720

 

160

 

1688

 

1656

 

1625

 

1595

 

1566

 

1537

 

1509

 

1481

 

1454

 

1427

 

170

 

1402

 

1376

 

1351

 

1327

 

1303

 

1280

 

1257

 

1235

 

1213

 

1191

 

180

 

1170

 

1150

 

1129

 

1110

 

1090

 

1071

 

1053

 

1035

 

1017

 

999

 

190

 

982

 

965

 

949

 

933

 

917

 

901

 

886

 

871

 

857

 

842

 

200

 

828

 

814

 

801

 

788

 

775

 

762

 

749

 

737

 

725

 

713

 

I

n

 

Degrees

 

C

 

°C

 

0

 

1

 

2

 

3

 

4

 

5

 

6

 

7

 

8

 

9

 

0

 

32648

 

31026

 

29495

 

28049

 

26682

 

25389

 

24166

 

23010

 

21915

 

20879

 

10

 

19898

 

18968

 

18088

 

17253

 

16461

 

15710

 

14998

 

14322

 

13680

 

13071

 

20

 

12492

 

11942

 

11419

 

10922

 

10450

 

10000

 

9572

 

9165

 

8778

 

8409

 

30

 

8057

 

7722

 

7403

 

7099

 

6808

 

8532

 

6268

 

6016

 

5775

 

5546

 

40

 

5327

 

5117

 

4917

 

4726

 

4543

 

4368

 

4201

 

4042

 

3889

 

3742

 

50

 

3602

 

3468

 

3340

 

3217

 

3099

 

2986

 

2878

 

2774

 

2675

 

2579

 

60

 

2488

 

2400

 

2316

 

2235

 

2157

 

2083

 

2011

 

1942

 

1876

 

1813

 

70

 

1752

 

1693

 

1637

 

1582

 

1530

 

1480

 

1432

 

1385

 

1340

 

1297

 

80

 

1256

 

1216

 

1177

 

1140

 

1105

 

1070

 

1037

 

1005

 

974

 

944

 

90

 

916

 

888

 

861

 

835

 

810

 

786

 

763

 

741

 

719

 

698

 

19

Содержание UCG100H399

Страница 1: ...NUAL Troubleshooting Guide and Instructions for Service To be performed ONLY by qualified service providers Effective December 2014 ECO 7956 Models Covered by This Manual UCG100H399 N Denotes Warranty...

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: ...ked 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 high...

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: ...n Dia Relief Valve Open Shipping Weight lbs UCG100H399 399 000 100 77 8 10 52 55 69 63 30 28 63 1 1 657 Model Description Dimensions MM Model No Input Rate KW Storage Capacity Liters A Floor to Top of...

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: ...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 Length on th...

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: ...to remove 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 WARNING The UCG100H399 model is not appr...

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: ......

Страница 46: ......

Страница 47: ......

Страница 48: ......

Отзывы: