Lincoln 1117-000-A Burner Transformer Replacement, Thermocouple Replacement, Information

Page 19

BURNER TRANSFORMER - REPLACEMENT

1.Shut power off at main breaker.

2.Remove control panel top and front cover.

3.Remove two (2) wires on primary side, note color and location.

4.Remove two (2) wires on secondary side, note color and location.

5.Remove two (2) screws from transformer base and replace assembly.

6.Reinstall in reverse order and check system operation.

THERMOCOUPLE - REPLACEMENT

1.Shut off power at main breaker.

2.Remove control panel top and front cover.

3.Slide thermocouple out of oven chamber.

NOTE: Remove conveyor and bottom finger assembly to aid in removal and installation of thermocouple.

4.Remove two (2) wires from temperature control. Make note of wire numbers or color and location for reinstallation.

5.Reassemble in reverse order making sure the metal end on the thermocouple is securely held in the wire form in the oven chamber.

THERMOCOUPLE MEASUREMENT CHART:

INFORMATION:

When two wires composed of dissimilar metals are joined together and one of the ends is heated, a continuous current flow is generated. We use an iron constant (Type J) thermocouple. The iron wire increases the number of dissimilar junctions in the circuit.

It is possible to check a thermocouple with a properly calibrated D.C. millivolt meter. At 32°F, the millivolt reading should be 0.00. This can be checked by inserting the thermocouple into an ice bath.

The millivolt reading at 72°F should be 1.134.

When using the following chart, the temperature at the terminal connections must be noted. This temperature is called the Junction Temperature.

The following chart lists the thermocouple millivolt readings from 200°F to 600°F.

EXPLANATION: The junction temperature is the ambient air temperature where the thermocouple fastens to the electronic temperature control.

 

 

 

O

V

E

N

 

T

E

M

P

 

 

 

200°F

250°F

300°F

325°F

350°F

400°F

425°F

450°F

500°F

550°F

600°F

J

90°F

3.26

4.77

6.30

7.06

7.83

9.37

10.14

10.91

12.46

14.00

15.53

U

88°F

3.32

4.83

6.36

7.12

7.89

9.43

10.20

10.97

12.51

14.05

15.59

N

86°F

3.37

4.88

6.41

7.17

7.94

9.49

10.26

11.03

12.57

14.11

15.65

C

84°F

3.43

4.94

6.47

7.23

8.00

9.54

10.31

11.09

12.63

14.19

15.71

T

82°F

3.49

5.00

6.53

7.29

8.06

9.60

10.37

11.14

12.69

14.23

15.76

I

80°F

3.55

5.06

6.59

7.35

8.12

9.66

10.43

11.20

12.74

14.28

15.82

O

78°F

3.60

5.11

6.64

7.40

8.17

9.72

10.49

11.26

12.80

14.34

15.86

N

76°F

3.66

5.17

6.70

7.46

8.23

9.77

10.55

11.32

12.86

14.40

15.94

 

75°F

3.69

5.20

6.73

7.49

5.26

9.80

10.57

11.35

12.89

14.43

15.97

 

74°F

3.72

5.23

6.76

7.52

8.29

9.83

10.60

11.37

12.92

14.46

15.99

 

72°F

3.78

5.29

6.82

7.58

8.35

9.89

10.66

11.43

12.97

14.51

16.05

T

70°F

3.83

5.34

6.87

7.63

8.40

9.95

10.72

11.49

13.03

14.57

16.11

E

68°F

3.89

5.40

6.93

7.69

8.46

10.00

10.78

11.55

13.09

14.63

16.17

M

66°F

3.95

5.46

6.99

7.75

8.52

10.06

10.83

11.61

13.15

14.69

16.23

P

64°F

4.01

5.52

7.05

7.81

8.58

10.12

10.89

11.66

13.20

14.74

16.28

 

62°F

4.06

5.57

7.10

7.86

8.63

10.18

10.95

11.72

13.26

14.80

16.34

 

60°F

4.12

5.63

7.16

7.92

8.69

10.24

11.01

11.78

13.32

14.86

16.40

Impinger II –Advantage Service Manual - Domestic

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Contents Impinger Conveyor Ovens Table of Contents Impinger II Advantage Sequence of OperationsHeater Circuit Control BOX Auto Cool DownSchematic 1116-000-A, 1117-000-A Schematic 1130-000-A / 1131-000-A Schematic 1132-000-A / 1133-000-A LP GAS Troubleshooting Guide / GAS OvensPhase Natural GASPage Attached to the Temperature Control With Power on and Thermocouple LeadsPage Page Refer to Proper Schematic for Identified Components Troubleshooting Guide / Electric OvensSingle Phase Three PhaseLeads Attached to the Temperature With Power on and ThermocouplePage Page FAN, Main REMOVAL, INSTALLATION, and AdjustmentON/OFF Switch Replacement MOTOR, Main FANHigh Limit Thermostat Replacement Fuse Holder ReplacementTHERMOSTAT, Control BOX HI-LIMIT Replacement Burner Blower Motor ReplacementInformation Burner Transformer ReplacementThermocouple Replacement Thermocouple Measurement ChartHeat Light Replacement Electronic Temperature Control Board ReplacementElectronic Temperature Control Board Calibration Temperature Control Potentiometer ReplacementConveyor Control Potentiometer Replacement Temperature Regulation Valve ReplacementHOT Surface Ignitor Replacement Main Burner Orifice ReplacementCircuit Breaker Conveyor Control Board ReplacementConveyor Drive Motor Replacement Conveyor Control Board CalibrationCalibration of Temperature Display Hall Effect Sensor ReplacementTemperature Display Transformer Replacement Temperature Display ReplacementBEARING, Conveyor Heating Element ReplacementThis page intentionally left blank Letter Part Number Description Parts / GeneralBlow UP / General Parts / Control BOX 1116-000-A, 1117-000-A Blow UP / Control BOX 1116-000-A, 1117-000-A Parts / Control BOX 1130-000-A Thru 1133-000-A Blow UP / Control BOX 1130-000-A Thru 1133-000-A Parts / Conveyor & Door Blow UP / Conveyor & Door Parts / Oven Back Assembly Blow UP / Oven Back Assembly
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