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- NOTICE -

This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this
product, you may be qualified to perform all the procedures
described in this manual.

This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety,  the repair procedure you wish to perform  to
determine if you have the necessary tools, instruments and skills
required 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.

Reproduction or other use of this Manual, without the express
written consent of Vulcan, is prohibited.  

SERVICE

  

MANUAL

INDUCTION
 COOKERS

MODEL

ML

VI2

114713

VI3

114714

VI22

114715

VI33

114716

VI23

114717

Model VI22 shown

A product of VULCAN-HART

LOUISVILLE, KY 40201-0696

Form 24591 (Rev. A, 12-98)  Supercedes (5-97)

Summary of Contents for VI2

Page 1: ...ad in its entirety the repair procedure you wish to perform to determine if you have the necessary tools instruments and skills required 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 Reproduction or other use of this Manual without the express written consent of Vulcan is prohibite...

Page 2: ...iometer 9 Knob Gasket 9 Inverter Coil 9 High Voltage Board 10 Low Voltage Board 10 EMI Board 11 Fuse on EMI Board 11 Thermistor Tension Spring and Support 11 SERVICE PROCEDURES AND ADJUSTMENTS 12 Thermistor Test 12 Controller Board Potentiometer Test 12 High Voltage Board Test 12 Inverter Coil Test 13 Power Output Adjustment 13 Access Hole Modification 16 Transformer Test 18 ELECTRICAL OPERATION 1...

Page 3: ...ready state without using much current It is necessary to use iron or steel pans or special pans designed for induction use Ceramic glass pottery and some special stainless steel pans will not complete the magnetic loop and therefore will not heat properly and should not be used How to Distinguish a Usable Pan Put the pan filled with water on the center of the cooktop and turn the control knob to ...

Page 4: ... 8 18 10 and 18 Cr material are acceptable if a magnet will attach itself to the pan and if the shape of the pan is acceptable Pans with a flat bottom 5 to 10 in diameter are recommended Thin pans may deform during heating a thicker wall and bottom are recommended Pans made of 18 8 stainless steel and pans with a smaller diameter bottom may have slower rates of heat transfer ...

Page 5: ... cooktop will shut down if they overheat above 110 F Refer to the Installation and Operation Manual for complete installation instructions CONTROLS Control Knob Turn counterclockwise to OFF clockwise to desired cooking level Indicator Light On Indicates that power is ON and at what cooking level Blinking If the indicator light blinks continuously it indicates the cooktop is in stand by mode This m...

Page 6: ...RICAL POWER BEFORE CLEANING Clean the ceramic cooktop surface by using a cloth moistened in warm water or a solution of detergent and warm water For stubborn stains ScotchBrite or a soft paste of cleanser may be used do not use abrasive materials or harsh scouring action because this could damage the surface Snap out air filters located on the bottom of the cooktop and wash them in a sink Dry filt...

Page 7: ...ct top cover when it is installed INVERTER ASSEMBLY WARNING UNPLUG UNIT BEFORE SERVICING 1 Remove the top cover as outlined under TOP COVER 2 Identify and disconnect the fan plugs 3 Remove any cable ties securing fan wires to inverter frame 4 Disconnect power leads from terminal block and remove screws securing terminal block to base 5 Remove cable clamp securing ferrite filter on ground wire 6 Re...

Page 8: ... Remove screws securing fan housing to base C Remove fan housing D Remove fan from fan housing 2 Discharge fan A Remove fan Current Production Units 1 Intake fan only A Snap off filters located underneath unit B Remove screws securing fan air deflector to base C Remove fan air deflector D Remove remaining screws securing fan to be removed 2 Reverse procedure to install NOTE Fans have arrows indica...

Page 9: ...eing replaced 6 Unplug LED from board if LED is being replaced 7 Reverse procedure to install KNOB GASKET WARNING UNPLUG UNIT BEFORE SERVICING 1 Remove the controller board as outlined under CONTROLLER BOARD LED AND POTENTIOMETER 2 Pry out gasket from inside top cover 3 Reverse procedure to install INVERTER COIL WARNING UNPLUG UNIT BEFORE SERVICING CAUTION Certain components in this system are sub...

Page 10: ...ific instructions are included with the kit 1 Remove the top cover as outlined under TOP COVER 2 Remove the inverter coil as outlined under INVERTER COIL 3 Disconnect the lead wires for the high voltage board 4 Remove the screws that secure the high voltage board mounting plate to the inverter assembly frame 5 Reverse the procedure to install 6 Adjust power output as outlined under POWER OUTPUT AD...

Page 11: ... 3 Push in the tabs of the pins that secure the EMI board and remove the board from the mounting plate 4 Reverse the procedure to install 5 Adjust power output as outlined under POWER OUTPUT ADJUSTMENT FUSE ON EMI BOARD WARNING UNPLUG UNIT BEFORE SERVICING 1 Remove fuse using needle nose pliers or small screwdriver THERMISTOR TENSION SPRING AND SUPPORT WARNING UNPLUG UNIT BEFORE SERVICING 1 Remove...

Page 12: ...ING 1 Remove the controller board as outlined under CONTROLLER BOARD LED and POTENTIOMETER 2 Unplug both potentiometer leads A Check ON OFF switch portion operation of potentiometer with ohm meter B Check potentiometer according to diagram 3 Replace potentiometer if either test fails Potentiometer is secured with a nut 4 Reverse the procedure to install HIGH VOLTAGE BOARD TEST WARNING UNPLUG UNIT ...

Page 13: ... coil Reading will be about 2 ohms or the resistance of the meter leads you are using 3 If coil reads open replace inductor coil POWER OUTPUT ADJUSTMENT NOTE On units built prior to 11 14 97 check for potentiometer adjustment access hole in base If no hole is found refer to ACCESS HOLE MODIFICATION NOTE Test and adjust coils independently 1 Use Demeyere Apollo Series sauce pan PMI Part 424971 1 wh...

Page 14: ...Chart is for single coil UNITS WITH 208V 60HZ DATA PLATES SUPPLY VOLTAGE 220 216 208 198 188 KW RATING OF COOKTOP ZONE 3 2 2 3 2 2 3 2 2 3 2 2 3 2 2 DEMEYERE APOLLO SERIES FRYING PAN 26CM TOP X 24CM BOTTOM AMPS 9 SETTING 14 7 10 7 14 8 10 6 14 6 10 6 14 4 10 4 12 7 10 NOTE 208V units must have a nominal line voltage of 208V ...

Page 15: ... Chart is for single coil UNITS WITH 220 240 60HZ DATA PLATES SUPPLY VOLTAGE 264 240 230 220 208 KW RATING OF COOKTOP ZONE 3 2 2 3 2 2 3 2 2 3 2 2 3 2 2 DEMEYERE APOLLO SERIES FRYING PAN 26CM TOP X 24CM BOTTOM AMPS 9 SETTING 12 8 9 3 12 5 9 1 12 4 9 2 12 3 9 1 12 9 NOTE 220 240V units must have a nominal line voltage of 220 240V ...

Page 16: ...ise to increase power output or clockwise to decrease power output 6 Repeat step 5 until reading is correct 7 Install plug in access hole in base B If unit does not have an access hole in base 1 Unplug power cord 2 Drill a hole as outlined under ACCESS HOLE MODIFICATION 3 Perform step A ACCESS HOLE MODIFICATION NOTE For units made prior to 11 14 97 WARNING UNPLUG UNIT BEFORE SERVICING 1 Remove top...

Page 17: ...INDUCTION COOKERS SERVICE PROCEDURES AND ADJUSTMENTS 17 ...

Page 18: ... shown in diagram 6 If test is not correct replace the transformer 7 Assemble in reverse order ELECTRICAL OPERATION COMPONENT FUNCTION Controller Board Inputs to the low voltage board to turn unit on or off and select cooking level Led Installed on controller board and displays cooking level Inverter Assembly Receives signal from controller board to produce energy for cooking EMI Board Supplies vo...

Page 19: ...ATION Units built before 11 14 97 have fans mounted inside the fan housing as illustrated below Current production units have fans mounted directly to the base and a fan air deflector which directs air flow across the inverter assembly as shown in pictures ...

Page 20: ...ling fans turn on B If indicator light blinks it indicates no pan is detected and cooktop will shut off after 3 minutes 1 Cooktop is in stand by mode and must be reset to continue operating 2 Cooling fans turn off 3 Reset cooktop by turning control knob to OFF then back ON to desired cooking level C When pan is in place and indicator is on cooktop is heating 3 When cooking is finished turn control...

Page 21: ...INDUCTION COOKERS ELECTRICAL OPERATION 21 PLUG LAYOUT ...

Page 22: ...KERS ELECTRICAL OPERATION 22 WIRING DIAGRAM Double Heater NOTE To avoid EMI interference all wire leads should be routed as far away as possible from the inverter Do not run power leads parallel to the control leads ...

Page 23: ...ION COOKERS ELECTRICAL OPERATION 23 Single Heater NOTE To avoid EMI interference all wire leads should be routed as far away as possible from the inverter Do not run power leads parallel to the control leads ...

Page 24: ...me i e cooking with oil Reduced heat 1 Incorrect voltage 2 Incorrect power output adjustment 3 Incorrect pan No heating indicator continues to flash 1 Incorrect pan 2 High voltage board Check as outlined in HIGH VOLTAGE BOARD TEST 3 Low voltage board 4 Thermistor open or unplugged Cooker does not operate indicator light is off 1 Line voltage noise Disconnect power cord then reconnect power cord an...

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