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SERVICE MANUAL
INDUCTION COOKERS WITH RTCS TECHNOLOGY
(REAL TIME TEMPERATURE CONTROL SYSTEM
COUNTER TOP/BUILT IN/WOK MODELS
C CM
86037
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 (
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TABLE OF CONTENTS SECTION 1 –SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Description Of Warning Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Personnel Qualification And Training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Inform
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SECTION 1 –SAFETY Description Of Warning Signs Safety Information, Installation And Service Operators of the equipment must ensure that all installation, Identifies safety information about service and as well as all inspections, are performed by dangers which may cause serious personal authorized and qualified personnel. Before attempting to injury if equipment is not operated operate the equipment carefully read the information and properly. instructions outlined in the ”Installations a
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SECTION 2 – TECHNICAL INFORMATION Model BH/BA (Counter models) 120 V/1 Ph 208 V/1 Ph 240 V/1 Ph Wattage kW 1.5/1.8 kW 2.5/3.5 kW 2.5/3.5 kW Current A 12.5/15 12/14.5/17 10/12.5/14.5 Power factor Cos ϕ >0.95 >0.95 >0.95 Discharge rate mA 4 4 4 ∅ Coil mm 190 (7.5”) 190 (7.5”) 190 (7.5”) Model BH/IN (Counter Models) 208 V/1 Ph 240 V/1 Ph Wattage kW 2.5 kW 2.5 kW Current A 12 10 Power factor Cos ϕ >0.95 >0.95 Discharge rate mA 4 4 ∅ Coil mm 190 (7.5”) 190 (7.5”) Model SH/BA (Counter Models) 208 V/1
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Maximum tolerance of power supply Nominal voltage +6/-10 % Frequency 50/60 Hz Protection class IP X0 Min. diameter of pans Approx. 12 cm ( 4.7” ) Max. ambient temperature: stockage -20°C to 70°C (-4°F to 158°F) Max. ambient temperature: function -5 °C to 40°C (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 Power board The performance rate is adjusted by the potentiometer Th
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SECTION 4 – TESTS Pan Material For Induction Cookers Pan Detection When cooking with induction it is very important to use The heating area is warmed up by the the appropriate pan material. The bottom of the pan is the ATTENTION hot pan. To avoid injuries (burns) do element that closes the magnetic field generated by the not touch the heating area. induction coil. We highly recommend only appropriate induction pans be used with this equipment. These tests show whether the induction cooker
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Power Rating Test Of The Components The heating area is warmed up by the The power cord must be disconnected CAUTION ATTENTION hot pan. To avoid injuries (burns) do from the power supply. not touch the heating area. Rectifier Step Action Level Result 1 Place the pan 9 (12) Heat, water is on the heating boiling area until water is boiling 2 Reduce the power (12) 9...1 Heat rating by turning slowly reduces (water the control knob does not boil anymore), phase current reduces continuously T
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Transistor module (IGBT) CU (RTCS) Sensors G E C CU Sensor 1 (Center) CU Sensor 2 (Outer) The IGBT (Insulated Gate Bipolar Transistor) is fixed onto the 4 – 5.5 Ohms 4 – 5.5 Ohms power print (board) with three solder connections. The IGBT Transistor has as a supplementary protection an The two CU sensors are mounted directly on top of the coil integrated recovery diode. To begin, measure the on-state for base-line, (counter top) cookers. Both the center and voltage of this diode. The forwa
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Measurements taken across points shown. SECTION 5 – MAINTENANCE/SERVICE Maintenance work must only be completed by authorized • The airducts must be free of dirt. personnel. Before beginning any maintenance work, ensure • The air must circulate unhindered through the heat sink that all power supply is disconnected and the appliance (no hindrance). has had an opportunity, to cool down. It is important that the following maintenance procedures be performed as • The fan is correctly installed
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General Checks • Protection connection grounded? • Screwed connections all tight? • Isolations of cables? • Any kind of liquids that have entered the cooker? • 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. Coil terminals must be connected in the direction shown Coil wires must be tightly twisted together and precisely
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Figure # 2 – Examples of Incorrect Coil (Spoil) Connections Coil wires not twisted tightly together or precisely placed. Coil terminals connected in the incorrect direction. Coil terminals connected in the incorrect direction. Coil terminals connected in the incorrect direction. Part # 4521635 (03/04/08) Page 11
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SECTION 6 – FAULT FINDING General Information Do not attempt to open the cooker when it is connected to the power supply. Dangerous CAUTION high voltage components will be exposed! The 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 attenti
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Number Of Significance Flashing Signals (Asterisk Refers To Notes At End Measures To Take Error Code Of Chart) 8 Sensor error*** a. Check Cu coil -........-........-........ b. Check heat sink sensor c. Check RTCS-sensor d. Check board sensor 12 Power reduction, heat sink a. Turn the power level down temperature ** b. Check fan 13 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 Warni
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Flow chart to fault finding Unit does not operate Check Power Supply Replace Fuse Short circuit Yes Check connection potentiometer Potentiometer? connection No Check if fuse is No installed correctly Connection OK? and power supply Defective Check LED Replace LED OK Yes OK OK Check power Disassemble Replace Connect Unit cord/plug & Cooker top Power Board socket assembly Defective DefectIve Defective Contact Check fuse Check recti er Electrician T10A No Is there any LED OK Indication? OK Check el
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SECTION 7 – EXCHANGE OF SPARE PARTS • Turn induction unit back in normal position. All spare parts and or accessories, may CAUTION only be replaced by authorized service • Lift cover, turn away at the right side, put it at the side personnel. panel. • Remove coil carrier: remove 2 stop nuts at the left. In order to guarantee safety, use only genuine OEM spare parts and accessories • Remove M4 screws. purchased directly from a Garland CAUTION authorized part/service distributor. If other •
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• Place short circuit service plug into the power print board IMPORTANT NOTE: When replacing the power board and across the (Poti-LED) as showed in the photo below. 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 (t
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4. Not valid for WOK cookers. The parameters on the CPU 9. By input [ -? ] the mode of adjustment will be left. The can now be changed! The unit temperature and the following message appears on the monitor: ambient temperature must amount to 25°C (+/- 4°C) or 77°F (+/- 39°F). Press the key [ ; ]. On the console appears see you again! the message “please confirm”. Press the key [ ; ] again. The CU (RTCS) sensor will now be initialized on 25°C (77°F). 10 The mode for adjustment has a time-out
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Parameters For (Mains) Power Current And Pan Detector Item Number Mains-Power Induction Cooker Model Pan Detector (Article No.) Current 99560101 BH/BA 1500, 120VAC, 1N, 1,5kW (GIU 1.5) 162 21 99560102 BH/BA 1800, 120VAC, 1N, 1,8kW (GIU 1.8) 187 21 99560103 BH/BA 2500, 208VAC, 1N, 2,5kW (GIU 2.5) 153 23 99560104 BH/BA 2500, 230VAC, 1N, 2,5kW (GIU 2.5) 140 27 99560105 BH/BA 2500, 240VAC, 1N, 2,5kW (GIU 2.5) 192 26 99560106 BH/BA 3000, 208VAC, 1N, 3kW (GIU 3.0) 180 26 99560107 BH/BA 3000, 230VAC,
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SECTION 9 – IR (INFRARED) INTERFACE To begin the IR communication, you will need the HyperTerminal software which is available in Microsoft Windows under, Start =>Program=>Accessories => HyperTerminal. Prior to the first use, HyperTerminal should be configured properly. Garland service requires the following settings listed below: 2400bps, 8bit, no parity, 1 stop bit, hardware protocol. First connect the IR adapter into your PC or laptop computer. Place the IR sensor section onto the ceran
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Select the following settings: 2400 Bits/sec., 8 Databits, no parity, 1 Stop bit, Hardware protocol. 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. Page 20 Part #
