Vulcan-Hart SG4D service manual Schematics, Thermostat

Page 40

SCHEMATICS

 

 

 

 

 

 

 

 

 

 

 

 

BLACK

 

120 VOLT

 

 

 

 

 

 

WHITE

 

 

 

 

 

 

 

 

 

 

 

 

 

L1

 

200-240V

 

 

 

 

 

 

L2

 

 

 

 

 

 

C1-6

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND.

 

 

 

 

 

2

 

1

 

 

 

 

 

 

 

 

 

C1-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C1-1

 

POWER ON

 

 

 

 

 

 

 

POWER SWITCH

 

 

 

 

 

 

 

 

 

2

ON/OFF/COOL

1

40

 

 

41

 

 

 

 

 

 

 

SHOWN ON

 

 

 

 

 

 

 

HEATING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S1

 

 

 

39

 

 

43

 

 

 

42

 

 

 

 

 

 

 

 

 

 

36

 

POWER LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

39

 

 

 

 

 

 

 

 

 

3

 

 

THERMOSTAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

28

 

 

 

 

 

40W

 

 

 

PROBE

 

 

 

 

 

 

 

 

 

 

 

 

35

 

 

35

 

9

 

91

 

 

90

 

 

 

S2

 

 

 

 

 

 

 

36

 

 

 

 

 

OVEN LAMP

 

 

 

 

C1-10

 

 

 

 

 

 

20

 

 

 

10

 

 

 

40W

44

 

 

 

 

10

 

 

 

 

 

 

OVEN LAMP SWITCH

 

 

 

 

 

 

 

 

 

 

C1-3

C3-1

 

 

OPEN

 

92

 

 

90

 

 

3

 

 

OVEN LAMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C1-4

C3-2

 

SWITCH

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

1 HOUR TIMER

BUZZER

 

C1-9

 

 

 

 

 

 

 

 

 

HOLD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64

C

NC

66

65

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M

 

 

 

 

 

 

 

 

 

NO

WHT. LEAD

 

 

 

 

 

 

 

 

 

 

BK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

C1-7

 

 

 

 

 

 

 

97

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN SPEED

HIGH

C1-11

 

 

98

 

 

93

92

 

 

SWITCH

11

11

 

HI

 

 

 

HEAT RELAY

 

 

 

 

 

 

13

 

 

 

 

 

21

 

 

C1-12

 

COM.

 

 

 

 

 

 

 

 

 

LO

 

 

 

 

 

 

 

S3

 

12

12

 

CONVECTION

 

 

 

 

 

 

LOW

ROTATION

FAN MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-SPEED

 

 

 

 

 

 

 

 

 

FROM FRONT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLACK

 

 

WHITE

 

 

 

 

 

 

 

 

 

 

T1

 

 

6

 

 

BLUE

RED

BLACK

 

 

YELLOW

24V.

 

YELLOW

GND.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T2

 

 

 

52

24V.

GND.

48

 

 

 

 

 

 

 

 

 

 

YELLOW

24V.

YELLOW

58

59

 

TH

 

DUAL

 

 

 

 

 

 

 

 

HEAT

 

V1

 

CHANNEL

 

 

 

FOR 240V.

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

56

 

 

IGNITION

 

 

 

USE BLUE FOR BLACK

 

 

 

 

 

 

MODULE

 

 

 

USE BLACK FOR WHITE

 

54

 

55

 

 

 

NO IGNITION

 

 

 

 

 

NC

 

 

 

 

C1-5

 

 

 

LIMIT

 

 

 

 

 

 

 

 

 

 

 

550 F

 

 

 

 

C1-8

 

 

 

 

 

 

 

 

 

 

8

 

8

8

 

 

 

 

 

 

 

 

 

 

 

 

2ed VALVE

 

 

 

 

 

 

 

 

 

56

 

C2-1

 

 

 

 

 

 

 

 

 

 

 

C2-3

C2-2

 

 

 

 

 

 

 

 

55

 

 

57

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st VALVE

 

 

 

5

COOLING FAN

 

46

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

424373-1

GAS CONVECTION OVEN SG4 WITH STD. CONTROL

 

 

 

REV D

 

 

 

 

 

– 40 –

 

 

 

 

 

 

Page 39 Page 41
Image 40
Page 39 Page 41
Contents SG4 & SG6 Series Full Size GAS Convection Ovens VULCAN-HART Table of Contents Table of Contents General Removal and Replacement of Parts Component LocationCovers and Panels Top Front CoverBottom Front Cover Right Side PanelControl Panel Components SG4D/SG6D SG4C/SG6CComponent Panel Components Temperature Probe SG4C/SG6C Temperature Probe ShownGAS Burners GAS Orifice GAS Solenoid ValveIgnition Control Module Spark Igniter and Flame SenseBlower and Motor Oven Doors and Bearings Door Catch Roller Assembly Independent Doors Roller Latch Assembly Independent DoorsDoor Window Door Switch High Limit Thermostat Lamp AssemblyInterior Lights Fan Installation Tips Cooling FANSolid State Temperature Controller Test SG4D/SG6D Service Procedures and AdjustmentsTest Steps Solid State Temperature Control Calibration SG4D/SG6D Calibration StepsTemperature Probe Test SG4D/SG6D Temp F OhmsComputer Controller SG4C/SG6C Operation Setup ModeProbe Test Computer Control Calibration SG4C/SG6C Solid State Relay TestGAS Pressure Adjustment Door Switch Adjustment Verification of Spark AT IgnitorBlower Adjustment Flame Current MeasurementDoor Adjustment Door Strike Adjustment Independent DoorsDoor Catch Roller Adjustment Electrical Operation Component DescriptionFront View Plug, Socket and Components SG4D/SG6DFront View Control Panel Component PanelPlug, Socket and Components SG4C/SG6C Sequence of Operations SG4D/SG6D with Solid State Temperature ControllerCook Cycle Timer Cycle Cool Down Cycle Solid State Temperature ControllerSG4C/SG6C with Computer Controller Normal Cook CyclePage Temperature and Time Cycle Normal Cooking Roast and Hold CycleWiring Diagrams 426574 Rev. C Schematics ThermostatGAS Convection Oven SG4 with Watlow 734 Control Troubleshooting Symptoms Possible CausesComputer Control Models only Symptom Possible Causes Symptoms Possible CausesError Codes Probable Cause Solution Problem
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