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SOLID STATE TEMPERATURE

CONTROL TEST

 Certain procedures in

this section require electrical test or
measurements while power is applied
to the machine. Exercise extreme
caution at all times and follow Arc Flash
procedures. If test points are not easily
accessible, disconnect power and
follow Lockout/Tagout procedures,
attach test equipment and reapply
power to test.

1.

Remove RIGHT SIDE FRONT PANEL.

NOTE: 

 If right side panel is not accessible, this

component can be serviced by removing CONTROL
PANEL.

2.

Place a thermocouple in the geometric center of
oven cavity.

NOTE: 

 Oven temperature must be below 450°F.

3.

Set the temperature control to the maximum
setting.

4.

The green indicator light will flash once every 3
seconds if the board is receiving power. If it is off
the problem is not with the Temperature Control
Board. Refer to" TROUBLESHOOTING.

5.

If the red fault indicator comes on count the
number of times it flashes and check
TEMPERATURE CONTROL BOARD FAULT
INDICATOR table to identify fault code.

TEMPERATURE CONTROL BOARD FAULT INDICATOR

 

 Certain procedures in this section require electrical test or measurements while

power is applied to the machine. Exercise extreme caution at all times and follow Arc Flash
procedures. If test points are not easily accessible, disconnect power and follow Lockout/Tagout
procedures, attach test equipment and reapply power to test.

 

Code

Description

Action

1

Open Probe

Verify probe is plugged in. Replace

TEMPERATURE PROBE.

2

Shorted Probe

Replace TEMPERATURE PROBE.

3

No Heat

Run TEMPERATURE PROBE

TEST.

4

PCB Overheat

Verify cooling fan works. Clean air

intake at back of oven.

5

No Output

Replace temperature control PCB.

Refer to: CONTROL PANEL

COMPONENTS

6

Output Shorted

Replace temperature control PCB.

Refer to: CONTROL PANEL

COMPONENTS

 

VC5ED FULL SIZE ELECTRIC CONVECTION OVEN - SERVICE PROCEDURES AND ADJUSTMENTS

Page 15 of 31

F45652 (0217)

Содержание VC5E

Страница 1: ...d to perform the procedure Procedures for which you do not have the necessary tools instruments and skills should be performed by a trained Vulcan Service Technician The reproduction transfer sale or...

Страница 2: ...L 11 HIGH LIMIT THERMOSTAT 11 INTERIOR LIGHTS 11 COOLING FAN 12 SERVICE PROCEDURES AND ADJUSTMENTS 14 TEMPERATURE CONTROL CALIBRATION 14 SOLID STATE TEMPERATURE CONTROL TEST 15 TEMPERATURE CONTROL BOA...

Страница 3: ...o additional lubrication HUSKEY TF 1000 grease or equivalent high temperature non stick grease SPECIFICATIONS AMPERAGE 3 PHASE 60HZ MODEL TOTAL POWER KW PER LINE 1 RECOMMENDED CIRCUIT PROTECTION 2 208...

Страница 4: ...ed at CAT III 600V 3 Clamp on type amp meter with minimum of NFPA 70E CAT III 600V UL CSA TUV listed 4 Temperature tester thermocouple type 5 ESD Electrostatic discharge Protection Kit Special 1 Gear...

Страница 5: ...s near front of oven which secure bottom front cover 2 Loosen screws on left side of front panel and top cover screw 3 Remove screws along right side and bottom of front panel Fig 3 4 Slide right side...

Страница 6: ...onnect the electrical power to the machine and follow lockout tagout procedures 1 Remove three screws on right side which secure control panel then lift up and pull away Fig 6 2 Disconnect temperature...

Страница 7: ...Fig 8 NOTE Panel with standard controls shown COMPONENT PANEL COMPONENTS Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove RIGHT SIDE PANEL NOTE If right sid...

Страница 8: ...ushing it through the oven wall opening 2 Fig 9 in control panel area 6 Reverse the procedure to install the replacement probe 7 Adjust the temperature control Refer to SOLID STATE TEMPERATURE CONTROL...

Страница 9: ...mounting plate to the rear wall Fig 13 5 Place a piece of cardboard on the bottom of the oven cavity to protect its surface from any damage during motor assembly removal 6 Pull the motor assembly into...

Страница 10: ...16 Check oven for proper operation then replace rack guides and racks DOOR SWITCH Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove BOTTOM FRONT COVER 2 Unsc...

Страница 11: ...from high limit thermostat NOTE Remove the old RTV sealer from the cover and mating surfaces inside the oven cavity and apply new high temperature RTV sealer before installing 4 Reverse procedure to i...

Страница 12: ...s 5 Reverse procedure to install new lamp assembly COOLING FAN Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove RIGHT SIDE FRONT PANEL NOTE If right side fr...

Страница 13: ...the replacement fan and check for proper operation NOTE The fan must be installed so air is pulled from outside the rear of the oven and blown into the control area The arrow on the fan body indicate...

Страница 14: ...perature when heat light goes off and comes on for at least 2 cycles 7 Calculate differential by subtracting temperature when lamp goes out from temperature when lamp comes on Differential Heat Lamp O...

Страница 15: ...ING 5 If the red fault indicator comes on count the number of times it flashes and check TEMPERATURE CONTROL BOARD FAULT INDICATOR table to identify fault code TEMPERATURE CONTROL BOARD FAULT INDICATO...

Страница 16: ...ain procedures in this section require electrical test or measurements while power is applied to the machine Exercise extreme caution at all times and follow Arc Flash procedures If test points are no...

Страница 17: ...mounting bolts and proceed to STEP 4 B If the blower is not square continue adjusting until proper spacing is achieved then tighten motor mounting bolts NOTE If necessary place shims between motor an...

Страница 18: ...regulates the oven cavity temperature by controlling 1CON to energize the heating elements when the control calls for heat High Limit Thermostat Protects the oven from temperatures above 550 F by remo...

Страница 19: ...COMPONENT LOCATION Fig 27 VC5ED FULL SIZE ELECTRIC CONVECTION OVEN ELECTRICAL OPERATION Page 19 of 31 F45652 0217...

Страница 20: ...dout 5 Timer 6 HI LOW Fan Setting 7 Light ON OFF Switch 8 Temperature Control Board 9 Timer Board 10 Light and Fan Speed Switch Board 11 Gentle Bake Switch 12 Fuses CONTROL PANEL DIGITAL TEMPERATURE R...

Страница 21: ...Fig 28 CONTROL PANEL DIGITAL TIME READOUT VC5ED FULL SIZE ELECTRIC CONVECTION OVEN ELECTRICAL OPERATION Page 21 of 31 F45652 0217...

Страница 22: ...Fig 29 VC5ED FULL SIZE ELECTRIC CONVECTION OVEN ELECTRICAL OPERATION F45652 0217 Page 22 of 31...

Страница 23: ...Fig 30 VC5ED FULL SIZE ELECTRIC CONVECTION OVEN ELECTRICAL OPERATION Page 23 of 31 F45652 0217...

Страница 24: ...D High limit thermostat CLOSED E Oven doors closed door switch contacts CLOSED F Oven cavity temperature below 140 F 2 Power switch S1 turned ON A Power ON light Amber comes ON B Solid state temperat...

Страница 25: ...imer to desired time A Contacts 1 3 close timer motor is energized and timing down begins 3 Time expires on Cook timer A Contacts 1 3 open timer motor is de energized and timing stops B Contacts 1 4 c...

Страница 26: ...ER BOARD C ASSY SWITCH BOARD D SWITCH TOGGLE S P S T E LCOE GENTLE BAKE WIRE HARNESS F WIRE SET LIMIT SWITCH G LCOG DOOR SWITCH 2HP H BLOCK PORCELAIN ASSEMBLY J LIMIT CONTROL 550F K LCOE ELEMENT ASSY...

Страница 27: ...E R LCOE OVEN LAMP 40W 230V S WIRE NUT BLUE T FAN COOLING U LCOE DOOR SWITCH HARNESS V LCOE LIGHT GND WIRE W LCOE ACTUATOR HARNESS ASSY X LCOE SENSING HARNESS ASSY Y LCOE WIRE SET SF Z TRANSFORMER 480...

Страница 28: ...D SWITCH TOGGLE S P S T E LCOE GENTLE BAKE WIRE HARNESS F WIRE SET LIMIT SWITCH G LCOG DOOR SWITCH 2HP H BLOCK PORCELAIN ASSEMBLY J LIMIT CONTROL 550F K LCOE ELEMENT ASSY 12KW L PROBE THERMISTOR M FUS...

Страница 29: ...D G E R LCOE OVEN LAMP 40W 230V S WIRE NUT BLUE T FAN COOLING U LCOE DOOR SWITCH HARNESS V LCOE LIGHT GND WIRE W LCOE ACTUATOR HARNESS ASSY X LCOE SENSING HARNESS ASSY Y LCOE WIRE SET SF VC5ED FULL SI...

Страница 30: ...Door switch malfunction 2 Fan speed switch S2 malfunction 3 Interconnecting wiring malfunction 4 Motor inoperative Blower motor doesn t run in Cool Down but runs OK in ON position 1 Power switch S1 m...

Страница 31: ...rrect 2 Control circuit fuses OPEN 3 Power switch S1 inoperative 4 Transformer inoperative 480V only No heat convection fan motor runs 1 High limit thermostat OPEN 2 Temperature probe malfunction 3 He...

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