INDUCTION COOKERS WITH RTCS TECH
Contents
1. two CU sensors are mounted directly on top of the coil for base line counter top cookers Both the center and outer sensors will measure approximately 4 55 Ohms Potentiometer The potentiometer is mounted onto the main power switch On setting 0 the reading will be 0 Ohms and on the maximum level the resistor will read 10kOhm 10 000 Ohms Resistor is proportional linear to swing angle see following photo for measurement points Part 4521635 07 06 Measurements taken across points shown SECTION 5 MAINTENANCE SERVICE Maintenance work must only be completed by authorized personnel Before beginning any maintenance work ensure that all power supply is disconnected and the appliance has had an opportunity to cool down It is important that the following maintenance procedures be performed as recommended Such preventative maintenance measures will extend the life of this equipment and will provide trouble free operation length of time used each and the use frequency will determine how often maintenance is required Every cooker must be checked at least once a year The following routine maintenance should and must be completed periodically Fan Function of the cooker can only be guaranteed if all electronic components are operated within their normal working conditions temperatures The air inlet and air outlet slots must not be blocked Part 4521635 07 06 Th2. 1 KK 68 CUI 22 CU2 22 33 1 KK 68 CU1 22 CU2 24 33 F 20080 F 20080 F 20080 F 20080 1 KK 67 CU1 22 CU2 24 B 33 1 KK 67 CU1 22 CU2 24 B 33 Meaning Heat Sink Sensor 2 Outside Temperature Temperature of the Coil Error Message 1 KK 68 CU1 22 CU2 22 B 33 F 20080 Frequency Active CU Sensor 1 Inside Board Field Temperature of the coil Status Message internal cooling fan will be activated once the heat sink temperature rises to 70 C 158 F Page 17 Parameters For Mains Power Current And Pan Detector BH BA 2500 240VAC 1N 2 5kW GIU 2 5 99560108 BH BAS3000 240VAC 1N 3kW GIU 3 0 28 99560110 3500 230VAC 3 5kW GIU 3 5 99560111 BH BA 3500 240VAC 1N 3 5kW GIU 3 5 99560112 2300 230VAC 1N 2 3kW GIU 3 5 99580001 BH IN 2500 208VAC 1N 2 5kW GIU 2 5BI 99580002 BH IN 2500 230VAC 1N 2 5kW GIU 2 5BI 99580003 BH IN 2500 240VAC 1N 2 5kW GIU 2 5BI SH BA 3500 208VAC 1N 3 5kW GIU 3 5 SH BA 3500 230VAC 1N 3 5kW GIU 3 5 SH BA 3500 240VAC 1N 3 5kW GIU 3 5 SH BA 5000 208VAC 3N 5kW GIU 5 0 SH BA 5000 400VAC 3N 5kW GIU 5 0 SH BA 5000 440VAC 3N 5kW GIU 5 0 _ CD 99580004 SH IN 3500 208VAC 1N 3 5kW GIU 3 5BI SH IN 3500 230VAC 1N 3 5kW GIU 3 5 SH IN 3500 240VAC 1N 3 5kW GIU 3 5BI SH IN 5000 208VAC 5kW GIU 5 0 SH IN 5000 400VAC 5kW GIU 5 0
3. Remove M screws on the right side Lift cover with the glass e Remove screws remove coil carrier Remove and coil connections SECTION 8 ADJUSTMENT OF PROCESS PARAMETERS The induction unit excluding all WOK units with new Cu sensors can be adjusted This can be done either by means of the short circuit service plug Poti LED part number 94900096 or by PC Laptop In addition the pan detection and the power performance can be adjusted by the hyperterminal program of the PC Laptop Please refer to Section 9 IR Interface for instructions on how to use the hyperterminal program Part 4521635 07 06 Initializing CU Sensors By The Short Circuit Plug If only the CU sensor is exchanged the new CU sensor can be initialized by means of the short circuit service plug Poti LED For this you will not need the PC or Laptop The pan detection and the performance will not have to be changed Procedure of Initialization The cooking area must be clear of any items Surrounding temperature 25 C 3 C or 77 F 37 4 F Disconnect the induction unit from the main power supply Page 15 Place short circuit service plug into the power print board across the Poti LED as showed in the photo below Connect the induction unit to the main power supply The CU sensors initialize automatically After successful initialization the green LED on
4. SH IN 5000 440VAC 3N 5kW GIU 5 0Bl SH WO 3500 208VAC 1N 3 5kW GIWOK 3 5 SH WO 3500 230VAC 1N 3 5kW GIWOK 3 5 SH WO 3500 240VAC 1N 3 5kW GIWOK 3 5 SH WO 5000 208VAC 3N 5kW GIWOK 5 0 SH WO 5000 400VAC 3N 5kW GIWOK 5 0 SH WO 5000 440VAC 3N 5kW GIWOK 5 0 SH WO 8000 400VAC 3N 8kW GIWOK 8 0 CD SH WO IN 3500 208VAC 1N 3 5kW GIWOK 3 5 SH WO IN 3500 230VAC 3 5kW GIWOK 3 5BI SH WO IN 3500 240VAC 3 5kW GIWOK 3 5BI SH WO IN 5000 208VAC 5kW GIWOK 5 0BI SH WO IN 5000 400VAC 5kW GIWOK 5 0 SH WO IN 5000 440VAC 5kW GIWOK 5 0 SH WO IN 8000 400VAC 8kW GIWOK 8 08 lt Page 18 Part 4521635 07 06 SECTION 9 IR INFRARED INTERFACE To begin the IR communication you will need the HyperTerminal software which is available in Microsoft Windows under Start gt Program gt Accessories gt HyperTerminal Prior to the first use HyperTerminal should be configured properly Garland service requires the following settings listed below 2400bps 8bit no parity I stop bit hardware protocol First connect the IR adapter into your PC or laptop computer Place the IR sensor section onto the ceran glass towards the bottom left hand corner for counter top cookers Position the IR sensor to the generator Refer to figure 3 in this section for correct positioning For all Wok cookers you will
5. Page 20 Part 4521635 07 06 Figure 4 IR Adapter position for built in install line cookers IR Adapter to be positioned directly over rectangular opening shown in photo IR Adapter tool in position Place Wok Bowl top assembly back onto cooker as shown and begin testing using IR adapter tool Part 4521635 07 06 Page 21 SECTION 10 WIRING BLOCK SCHEMATIC JeldepV ued HI IddnSs Jewod GND OGAS OGAS OQdAvc OGQ vc OVAcL 91 fido dd AOvz 21 A902 z1 i 1 JolSISue 1991 1eynoed siosu s n 09 Part 4521635 07 06 22 NOTES Part 4521635 07 06 Page 23 GARLAND
6. Cooker does not operate Unit works Continuous test for Replace Power Board about 10 minutes is necessary Page 14 Short circuit Yes Check connection Potentiometer potentiometer connection Defective Check LED Replace LED Disassemble Replace Cooker top Power Board assembly Defectlve Defective Check fuse Check rectifier T10A Check electric Potential DC Volts Check fuse T1A Check power Print board visually Check IGBT Check wiring Transistor s Wired incorrectly Correct wiring Mi cdm connections Part 4521635 07 06 SECTION 7 EXCHANGE OF SPARE PARTS All spare parts and or accessories may only be replaced by authorized service personnel CAUTION In order to guarantee safety use only genuine OEM spare parts and accessories purchased directly from a Garland authorized part service distributor If other components are used no liability will be accepted CAUTION The electrical supply must be disconnected CAUTION To Open The Induction Unit Counter Top Models Turn the induction unit Remove 4 8 screws Turn induction unit back in normal position Lift cover turn away at the right side put it at the side panel Remove coil carrier remove 2 stop nuts at the left Remove M screws Remove screws Al and 2 Turn away coil carrier at the left To Open The Induction Unit Built In Models
7. Installation And Service 3 Unauthorized Reconstruction And Use Of Spare Parts 3 Impr per Operatine Methods a PS OOLE ROT acer hes ano Se Cw oed e a POPE UR C 3 SECTION 2 TECHNICAL INFORMATION 4 SECTION 3 OPERATION ooa I IO GERE RC REC RC 5 Adjusting The Performance 5 apanapaq RR CORR dob Rc E 5 Temperature Checks RTT 5 Protection OserloadiGuWee t a uuu yasa ae AREA aes ees per ee USE RT 5 SECTION 4 EESTS dsueccberurec swweerteeeineabi became pad 6 Pan Material For Induction Gobobeige iis outre etes bes e EP beue ed 6 Du dE paspa ed FEM e AN PIA Rees edu Pune Ren M tab M 6 Tes dui Pm 6 Test With Metallic Plates osse asya ion dura RE ERE pasi ex Fus us duode 6 Power Rating asso ede pikupa S REV RE eee d eo pepe RET 7 Fails esee ue AE ete Roe Fra RES Ra ed eis 7 Test Of The Components acea ped eor eredi Buc Ren a ed eden Jed aka 7 iugo ETE 7 Transistor module 8 SensOPs e e euentu epi E EI d Ee shoe 8 l otentiometet au xo etes eem ea ED egre eoe e REDE RR ER ae Ar e EE 8 SECTION 5 9 SECTION 6 FAULT FINDING 12 G
8. 25 C 77 F CU sensor 2 high temperature a Temperature of the cooking field too high warning b Turn the power down inside temperature them if any b Check air circulation a Contact the factory Board temp sensor error a Exchange power unit CU sensor 1 error a Check CU sensor 1 for short circuit or discontinuation index value 5 Ohms at 25 C 77 F CU Sensor 2 error a Check CU sensor 2 for short circuit or discontinuation index value 5 Ohms at 25 C 77 F Empty cooking detector CU a Check cooking material in the pan sensor 1 Empty cooking detector CU a Check cooking material in the pan sensor 2 The induction unit can only be restarted by turning the control knob first to the OFF position and then back to the ON position to reset Power reduction generator a Check for heat sources around the generator and remove The induction unit continues working The induction unit does not heat Part 4521635 07 06 Page 13 Flow chart to fault findin Unit does not operate Check Power Supply Replace Fuse Check if fuse is installed correctly and power supply Connection OK Check power cord plug amp socket Connect Unit Defective Contact Electrician Is there any LED Indication Yes Error code in No Is there any IR Mode Errorcodes Yes Utilize error code and go ahead according to list Cooker operates
9. be required to first remove the top wok bowl assembly Place the IR adapter into the left hand corner directly over the rectangular opening located on the metal sheet with ferrit stripes For Wok cookers please refer to figure 4 for IR adapter positioning Connection Description 21 New Connection Enter a name and choose an icon for the connection Name Start HyperTerminal and put the pD s 6 I 2 access name e g IR2400 ht Icon Cancel B IR2400 Enter details for the phone number that you want to dial Select the communication via COMI or where your IR adapter has been Country region pas connected Arga code po Phone number SSS Connect using TC lr Part 4521635 07 06 Page 19 Settings Bis per second EE Select the following settings 2400 Bits sec 8 Databits no parity 1 Stop bit Hardware Party None 3 Stop bis Hadwae Restore Defauks cot m Setting IR 2400 ht should be saved so that there will be no need to put them again and the connection can be built up by selecting symbol IR2400 ht Figure 3 IR Adapter position for counter top base line cookers For all counter top induction cookers excluding all WOK models position the IR adapter tool to the lower left hand corner of the ceran glass as shown in photo
10. the small CPU print board illuminates Incase the system finds an error during initialization the red LED will illuminate Disconnect the induction unit from the main power supply Check the CU sensors at the plug by means of the Ohm meter Recstart the procedure of initialization Disconnect the unit from the main power supply Remove the short circuit service plug from both the Poti and LED connections Initializing The Induction Unit By PC Or Laptop The initialization of the CU RTCS sensors excluding all WOK models as well as adjustments of the pan detection and power performance can be performed by means of the hyperterminal program Please refer to Section 9 IR Interface for instructions on how to use the hyperterminal program The following adjustments must be done in the hyperterminal program 2400bps 8bit no parity 1 stop bit hardware protocol Page 16 IMPORTANT NOTE When replacing the power board and or induction coil with RTCS sensors you must reset all parameters IMPERATIVE Pay close attention to whether you receive a feedback signal from the PC or Laptop after every change This will be your signal that the change has been accepted successfully 12345 Entry to the mode of adjustment password Initialize Cu sensor temperature of the coil ca 25 C 77 F excluding WOK Increase the limit of the mains current n Decrease the limit of the mains current Sav
11. 2L GARLAND SERVICE MANUAL FOR INDUCTION COOKERS WITH RICS TECHNOLOGY REAL TIME TEMPERATURE CONTROL SYSTEM COUNTER TOP BUILT IN WOK MODELS IMPORTANT NOTE INDUCTION COOKERS MANUFACTURED WITH RTCS TECHNOLOGY WILL HAVE FIVE DIGITS IN THE CENTER OF THE SERIAL NUMBER EXAMPLE BA06 00001 0505 MODELS GIU 1 5 BH BA 1500 GIU 1 8 BH BA 1800 GIU 2 5 BH BA 2500 GIU 3 5 SH BA 3500 GIU 5 0 SH BA 5000 GIU 2 5 BI BH IN 2500 GIU 3 5 BI SH IN 3500 GIU 5 0 BI SH IN 5000 GIWOK 3 5 SH WO 3500 GIWOK 5 0 SH WO 5000 GIWOK 3 5 BI SH WO IN 3500 GIWOK 5 0 SH WO IN 5000 Continuous product improvement is a Garland policy therefore design and specifications are subject to change without notice GARLAND COMMERCIAL INDUSTRIES GARLAND COMMERCIAL RANGES Enodis UK LTD 185 East South Street LTD Swallowfield Way Hayes Middlesex UB3 1DQ ENGLAND Freeland Pennsylvania 18224 1177 Kamato Road Mississauga Ontario LAW 1X4 Telephone 081 561 0433 Phone 570 636 1000 CANADA Fax 081 848 0041 Fax 570 636 3903 905 624 0260 Fax 905 624 5669 Part 4521635 07 06 2006 Garland Commercial Industries Inc Page 2 TABLE OF CONTENTS SECTION 1 SABPBETY wide ch ped ERS eRe Dee ORE oe 3 Description Of Warning uu cariera an uqa Cana ay Pawsa Cam sisa Personnel Qualification And Training 3 Safety Information
12. e air filter must not be blocked by dirt or grease The airducts must be free of dirt The air must circulate unhindered through the heat sink no hindrance The fan is correctly installed and in good operation The heat sinks are installed correctly and in place Check Induction coil Mechanical screws all tightened screw mountings Coil adhesive coil wire in place o k 2 Ferrites all mounted and in place Copper coil wire in place Coil connections to power board ok Refer to the following Figures 1 and 2 for correct and incorrect coil connections Page 9 General Checks Protection connection grounded Screwed connections all tight Isolations of cables Anykind of liquids that have entered the cooker2 Dirt in the cooker Figure 1 Correct Coil Spoil Connection This connection must be well insulated and slightly bent upwards so the terminal end does not make contact with the high voltage section on the power board ul Coil wires must be tightly twisted together and Coil terminals must be connected in the direction precisely placed shown in photo Page 10 Part 4521635 07 06 Figure 2 Examples of Incorrect Coil Spoil Connections x PF Ae g Coil wires not twisted tightly together or ZA ont precisely placed Coil terminals connected in the incorrect direction Coil te
13. e the limit of the mains power current T Increase pan detector t Decrease pan detector Save detector Leave the mode of adjustment State software version Change Of The Parameters 1 Connect the RS232 connection cable to the PC Laptop and straighten the IR adapter to the left lower corner of the ceran glass For counter top cookers refer to Section 9 figure 3 for correct IR adapter positioning For all Wok cookers you will be required to remove the top wok bowl assembly Place the IR adapter in the left hand corner directly over the rectangular opening located on the metal sheet with ferrit stripes Please refer to Section 9 figure 4 for Wok cooker IR adapter positioning 2 Start HT2400 see chapter 9 and turn unit on 3 Input 12345 and the mode of adjustment will now begin The following message will appear on the monitor IR On WELCOME REPAIRMEN Part 4521635 07 06 4 Not valid for WOK cookers Ihe parameters on the CPU can now be changed The unit temperature and the ambient temperature must amount to 25 C 4 C or 77 F 39 F Press the key On the console appears the message please confirm Press the key again CU RTCS sensor will now be initialized on 25 C 77 F The following message now appears on the monitor save CU sensor 25 C 5 Set the limit of the mains power current see mains current parameters in this section N increase the l
14. eneral Informatio eser cane ce donas dep eee Pana 12 Error Messages o m 646 6 eee cad whe EET 12 Flow chart to fault hnding 242555854655 E cR ac C d dedo ec a he 14 SECTION 7 EXCHANGE OF SPARE 15 To Open The Induction Unit Counter Top Models 15 To Open The Induction Unit Built In Models 15 SECTION 8 ADJUSTMENT OF PROCESS PARAMETERS 15 Initializing CU Sensors By The Short Circuit Plug etae ERE OL ela ni ORA 15 Initializing Ihe Induction Unit By PC Or Laptop pp 16 Change OF The Paramete uoo ua vets D anu e vrbe edt be Qd bli wee ri 16 Parameters For Mains Power Current And Pan Detector 18 SECTION 9 IR INFRARED INTERFACE 19 SECTION 10 WIRING BLOCK 5 22 Part 4521635 07 06 SECTION 1 SAFETY Description Of Warning Siens Identifies safety information about dangers which may cause serious personal injury if equipment is not operated properly Dangerous voltage warning symbol indicates a risk of electric shock and hazards from dangerous voltage Indicates a hazard or unsafe practice CAUTION which could result in minor personal injury or property damage Ay Electromagnetic field Warning signs mounted directly o
15. est can be performed to determine if a pan is appropriate For this test you will need 1 Liter 34 ounces of water at a temperature of 20 C 68 F Heat up the pan with the cooker set to maximum power and measure the time it takes for the water to boil Compare your time that referenced by Garland 2 5kW approx 240 sec 3 5kW approx 140 sec 5kW approx 80 sec 8kW gt approx 60 This heat up time gives you information regarding the efficiency of the pan tested Bad pans have considerably longer heating up times for the same quantity of water A magnet can be used to determine whether the pan material is appropriate for induction cooking magnet must attach its self to the bottom of the pan Please note this magnet test will not determine the material structure of the pan or its efficiency In some cases the magnet will attach itself to the bottom of the pan however the pan may not be suitable for use with induction cooking Always use pans which are suitable and designed for induction cooking Page 6 Pan Detection heating area is warmed up by the hot pan To avoid injuries ATTENTION burns do not touch the heating area These tests show whether the induction cooker is operating correctly when small diameter pans are used and when small metallic objects are heated up on the heating area This test will require the following material An appropriate pan with a bottom diameter
16. imit of the mains current n decrease the limit of the mains current following message appears on the monitor linecurrent limite 6 Save the limit of the mains power current with the key On the console appears the message please confirm Press the key again The following message appears on the monitor save linecurrent limit 7 Set the pan detector see pan detector Section 4 T increase pan detector 4 t decrease pan detector following message appears the monitor pan detector limit 8 Save the pan detector with the key On the console appears the message please confirm Press the key again The following message appears on the monitor save pan detector limit Part 4521635 07 06 9 By input the mode of adjustment will be left following message appears the monitor see you again 10 The mode for adjustment has a time out function After a 10 minute period the mode of adjustment will automatically reset The adjustments are now completed and it is not possible to make any other adjustments at this point If further adjustments are necessary you will be required to start from the beginning again Technical information regarding the induction cooker is also available in real time in the clients mode The following parameters listed below can be read Output on the hyperterminal
17. k a Heat sink temperature too high wait until the temperature has cooled down under 40 C 104 F b Check supply of cooling air perhaps blocked check function of fan c Check temperature of heat sink replace power circuit Temperature cooking surface a Temperature of the cooking surface too high b Check CU measure coil index value at 20 C 68 F approx 5 Ohms Temperature inside the unit too a Check whether the unit is next to a source of heat high fryer broiler etc b Check whether hot air is taken in generator has no air exhaust system Empty cooking sensor a Check cooking material in the pan Page 12 Part 4521635 07 06 Number Of Significance Flashing Signals Asterisk Refers To Notes At Measures To Take Error Code End Of Chart Sensor error a Check Cu coil b Check heat sink sensor c Check RTCS sensor d Check board sensor Power reduction heat sink a Turn the power level down temperature b Check fan Power reduction temperature of a Take pan off until cooking area has cooled down cooking surface b Wait until it has cooled down CU sensor 1 c Check coil Warning temperature CU sensor 1 over a Temperature of the cooking field too high kkk temperature b Check CU sensor 1 index value 5 Ohms at 25 C 77 F CU sensor 2 over a Temperature of the cooking field too high kkk temperature b Check CU sensor 2 index value 5 Ohms at
18. n the cooker must be observed at all times and kept in a fully legible condition Personnel Qualification And Trainin All persons involved in assembly installation commissioning operation and maintenance must have the appropriate qualifications The scope of responsibility competence and supervision of the staff must be defined and controlled Part 4521635 07 06 Safety Information Installation And Service Operators of the equipment must ensure that all installation service and as well as all inspections are performed by authorized and qualified personnel Before attempting to operate the equipment carefully read the information and instructions outlined in the Installations and Operating manual For all installations service maintenance repair and or overhaul of the induction cookers personnel must be specially qualified and must have attended a technical training course authorized by Garland Do not attempt to perform any repairs or replace any part of the induction cooker unless all power supply to the cooker has been disconnected Unauthorized Reconstruction And Use Of Spare Parts Reconstruction of the cooker or changes to the cooker are not allowed Contact the manufacturer if you intend to do any changes to the cooker To guarantee safety use only genuine OEM spare parts and accessories authorized by the manufacturer Garland will not be held liable for any damage or injury caused by used of o
19. of 12cm 4 7 or two untreated round iron plates approximately 4mm 0 16 thick iron plate 1 diameter d 12 cm 4 7 iron plate 2 diameter d 7 cm 2 75 Test With Pans Heat the indicator lights Place the pan in the middle of the heating area Push the pan No heating the until the edge indicator does not of the pan is in light the middle of the heating area Place the metallic 9 12 Heat the plate 1 in the indicator lights middle of the heating area Place the metallic 1 9 12 No heating the plate 2 in the indicator does not middle of the light heating area Part 4521635 07 06 Power Ratin The heating area is warmed up by the hot pan To avoid injuries burns do not touch the heating area Place the pan 12 water is on the heating boiling area until water is boiling Reduce the 1 Heat rating power by turning reduces water slowly the control does not boil knob anymore phase current reduces continuously With this test the fan observation as well as the degree of soiling is verified At the beginning of the test the induction cooker should be cold You need a pan with a bottom diameter of 28 cm I m Fan Place a pan on ot the heating area and fill it up with 1 Liter or 34 oz of water The fan should start working after 6 8 minutes Measure the time until the fan starts working Go on cooking fo
20. ower level See Error Message Section 6 Part 4521635 07 06 Power board The temperature of the power board is checked by a temperature sensor As soon as the heat sink is heated over 70 C 158 F a cooling fan starts A heat sink temperature of more than 80 C 176 F automatically reduces the power in order to keep the induction cooker working under normal conditions The internal temperature of the unit is supervised as well The power is reduced by 50 if the temperature reaches 75 C 167 F As soon as the temperature reaches 90 C 194 F the unit stops working and shows the error code 06 See Error message Section 6 Protection Overload Current When inappropriate pan material or magnetic objects are detected on the heating area the current in the induction coil may raise excessively In order to protect the power board the coil current is checked and as soon as the current in the coil exceeds the maximum tolerance the generator stops and there is no further active energy exchange The unit can be re started as soon as normal working conditions are reached Page 5 SECTION 4 TESTS Pan Material For Induction Cookers When cooking with induction it is very important to use the appropriate pan material The bottom of the pan is the element that closes the magnetic field generated by the induction coil We highly recommend only appropriate induction pans be used with this equipment A quick t
21. r about 30 minutes The heating process may periodically be interrupted for a period of 2 seconds Unit keeps working Part 4521635 07 06 Test Of The Components The powercord must be disconnected CAUTION from the power supply Rectifier The rectifier is fixed at the power board with four wires Rectifier connections must be unsoldered for correct test results To begin you have to measure the forward voltage between anode cathode by means of the multimeter please use only multimeters with diode check as an additional function The forward voltage for this diode is of about 0 5VDC in direction in the opposite direction is NO current flow If one of the four diodes shows a short circuit or an interruption the rectifier is defective and must be replaced Page 7 Transistor module IGBT Siig C The IGBT Insulated Gate Bipolar Transistor is fixed onto the power print board with three solder connections The IGBT Transistor has as a supplementary protection an integrated recovery diode To begin measure the on state voltage of this diode The forward voltage of this diode is approximately 0 5V DC If the recovery diode shows a short circuit or an interruption the IGBT transistor is defective and must be replaced C E Page 8 CU Sensors 4 5 5 Ohm 4 5 5 Ohm CU Sensor 1 Center 4 5 5 Ohms CU Sensor 2 Outer 4 5 5 Ohms
22. rminals connected in the incorrect direction Coil terminals connected in the incorrect direction Part 4521635 07 06 Page 11 SECTION 6 FAULT FINDING General Information CAUTION Do not attempt to open the cooker when it is connected to the power supply Dangerous high voltage components will be exposed induction cooker may only be serviced by authorized service personnel Should the Ceran Glass become broken or cracked turn off the cooker immediately and disconnect the electrical power supply to the unit Do not touch any parts inside the cooker Before replacing a part check the wiring Pay close attention to the following faults Broken cables Squeezed cables Defective isolations of cables Bad soldering joints You must not attempt to do any repairs on the circuit boards It is important however to do routine maintenance after every repair see Section 5 Maintenance Service for details Error Messages Order of error message for error code 1 8 indicator lamp located directly above the control knob flashes for an interval of 0 6 seconds number of the following short flashes have to be counted in order to determine the type of failure These flashes will inform you about the kind of error or failure corresponding to the code system below Number Of Significance Flashing Signals Asterisk Refers To Notes At Measures To Take Error Code End Of Chart Temperature heat sin
23. ther components Improper Operating Methods The operating reliability of the cookers can only be guaranteed when the cooker is used appropriately The limit values stated in this manual must not be exceeded Page 3 SECTION 2 TECHNICAL INFORMATION Model BH BA Counter models Wattage KW 2 5 3 5 KW Current A 10 12 5 14 5 Power factor Cos o gt 0 95 Coil mm 190 7 5 190 7 5 190 7 5 Model BH IN Counter Models 240 V 1 Ph Wattage kW 2 5 kW Current A 10 Power factor Cos 20 95 Discharge rate mA Coil mm 7 5 190 7 5 Wattage kW 5 kW Disnar rema 4 4 Page 4 Part 4521635 07 06 Max ambient temperature function 5 C to 40 23 F to 104 F Max relative humidity of air stockage 10 to 90 Max relative humidity of air function 30 to 90 SECTION 3 OPERATION Adjusting The Performance Rate The performance rate is adjusted by the potentiometer control knob inductive performance depends on the position of the potentiometer Position minimum power Position 9 resp Position 12 maximum power Temperature Check Induction coil The temperature of the induction coil is checked a temperature sensor If the coil is heated over the maximum temperature the heating process stops As soon as the coil has cooled down the Induction unit can be re started Turn the position of the control knob to 0 and then to the required p
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