Eurochef KL3-4: Technical Manual for Installation and Maintenance
This manual provides essential information for the installation, operation, and maintenance of the Eurochef KL3-4 fryer. Please read carefully before use.
Table of Contents
- 1) Warnings
- 2) Features and Technical Data
- 3) Installation Instructions
- Operation of the Machine
- Oil Temperature
- 4) Adjustments
- 5) Extraordinary Maintenance
- 6) Error Messages
1) Warnings
The machine operates with oil at 175 degrees Celsius. DO NOT OPEN THE MACHINE DURING OPERATION.
Excess water in the oil can cause it to boil over and overflow from the basin. If the heating element remains uncovered, there is a risk of oil combustion. In abnormal conditions of overheating and smoking, do not open the machine; disconnect the electrical power and let it cool down.
Perform maintenance operations only with the machine disconnected from the power supply and with the oil at a temperature below 40 degrees Celsius. The machine is not waterproof; therefore, it should not be cleaned with a water jet. Eurochef disclaims all responsibility for improper use of the machine that causes damage to persons or property. Users must be adequately informed about the risk of oil fire if the oil level is so low as to leave the heating element coils uncovered.
2) Features and Technical Data
| Model KL4 | Model KL3 | |
|---|---|---|
| Oil basin capacity: | Approx. 5.5 Liters | Approx. 9 Liters |
| Total absorbed power: | 3 kW | 3.4 kW or 4.1 kW or 5kW * |
| Electrical heating power: | 2.5 kW | 3 kW or 3.6 kW or 4.5 kW * |
| Power supply: | 220/240 V 50/60 Hz or 380 V 50/60 Hz * | 220/240 V 50/60 Hz or 380V 50/60 Hz * |
| Insulation class: | I | I |
| Dimensions: Width | 58 cm | 58 cm |
| Height | 57 cm | 57 cm |
| Depth | 55 cm | 62 cm |
| Weight (empty): | 53 Kg | 57 Kg |
| Maximum load capacity: | 300 gr / cycle | 600 gr / cycle |
* See the machine's serial number plate.
3) Installation Instructions
Positioning
The machine must be installed in a dry environment, well protected from atmospheric agents. Good ventilation in the room is necessary. If necessary, an effective extractor should be installed to ensure air exchange and limit odors from prepared products. Leave sufficient space (approx. 15 cm) around the machine for air to circulate freely underneath, above, and in correspondence with the ventilation slots. Lack of air circulation can cause damage to the machine or prevent its correct operation, particularly regarding the smoke and vapor abatement system. Do not place objects on the machine or use a spacer grid.
Electrical Connection
Ensure the electrical system has a ground connection compliant with regulations. Verify that the voltage, mains frequency, and available power values correspond to those indicated on the machine's serial number plate. Connect the power cord to the electrical mains, interposing a bipolar switch with a rating of at least 16 A for the KL4 model and 16 A or 32 A for the KL3 model, depending on the installed power. It is advisable to connect the machine to the system via a dedicated line. The three-phase KL3 should be connected to a 16A five-pin socket. The electrical system connection must be appropriately sized in relation to the power cord supplied with the fryer, which is 3 x 1.5 mm² for the KL4 model, 3 x 2.5 mm² for the single-phase KL3 model, and 5 x 1.5 mm² for the three-phase KL3 model. In case of power cord replacement, it must be of type HO7RN-F.
Drain Pipe
Place the 5-liter canister in the immediate vicinity of the machine and connect the drain pipe for condensation water and any liquid from the frying chamber washing, taking care to avoid sharp bends that could cause siphoning or constrictions. The cap should be kept closed to prevent odor escape.
Internal Filter
The frying chamber communicates with the outside through an activated carbon filter located above the refrigeration unit. The lifespan of a carbon charge is approximately 3500 cycles or 4000 working hours. Filter cartridge replacement must be performed by a technician.
To replace the internal filter, remove the rear panel of the machine by unscrewing the 8 black screws with a 2.5 mm Allen key. The filter is located at the top and is secured with 2 hexagonal head screws to its sheet metal support. It can be extracted by unscrewing these screws and loosening the metal clamp that secures the tube connected to the filter.
Heating Element Connection
Ensure that the connector for the heating element and the temperature probe is properly connected inside the frying chamber.
Operation of the Machine
Fill the basin with oil up to the minimum mark on the basin and perform a frying test. Remember that:
- The main switch on the left side of the machine should only be turned off for maintenance. Turning it on and off using the ON-OFF button on the keypad keeps the smoke abatement system active.
- This system activates when the oil reaches 75 degrees Celsius.
- In case of malfunctions, before searching for faults, try resetting the machine by completely disconnecting the electrical power.
- The product to be fried should not have a high moisture content to prevent the oil from boiling over and escaping the basin.
- The oil must have a high smoke point and must be changed regularly to avoid hazards (see operating instructions).
Oil Temperature
The oil temperature is controlled by the electronic board via a probe. In case of overheating, the safety thermostat, located in the heating element support box, activates and cuts off power. To restore operation, after eliminating the problem by intervening on the board or probe, the thermostat must be reset by pressing the button located on the heating element box, protected by a screw cap.
4) Adjustments
ATTENTION: The machine's operating parameters are provided for technical use only. Except for cooking times, they should never be altered to avoid damage to the machine or persons. The manufacturer disclaims all responsibility for any damage caused by incorrect reprogramming.
Upon switching on the main switch, after a few seconds, the display will show EUROCHEF, then FRIGGITRICE, and finally MACCHINA SPENTA (MACHINE OFF). At this point, the machine remains in Stand-By with the ON/OFF LED flashing. In this phase, heating is off, and all cycle start buttons are disabled. The only system controlled is the cooling unit, which turns on or off depending on whether the temperature is above or below the Start Set Point (calibration point set at 75°C).
All Set Points and times can be adjusted via the keypad. If the oil temperature is above the Start Set Point at startup, a basket emptying cycle is first performed. Pressing the ON button activates heating so that the oil temperature reaches the set value (175°C); the display shows ATTENDERE (WAIT). Upon reaching the Start Set Point of 75°C, the cooling unit turns on, and the basket will perform an emptying cycle; the display shows SVUOTAMENTO (EMPTYING), after which it will show ATTENDERE again. When the oil reaches 175°C, the machine automatically switches to operating status, and the message PRONTA (READY) is displayed. In this phase, buttons 1 to 4 are enabled to start the frying cycles regulated by the previously set times. Each time a cycle starts, the display shows the remaining time in seconds. Each of the four buttons corresponds to one of the four Time Set cooking times. These times are for the actual cooking, while the times for the rest of the cycle (basket descent, ascent, waiting, etc.) are the same for all cycles.
Setting Cooking Times
Press the Time Set button to enter the time setting mode. Buttons 2 and 3 become up and down arrows, respectively, and button 1 is Enter. Use buttons 2 and 3 to select the time to modify and press button 1 to confirm and edit the data. When the number flashes, always use buttons 2 and 3 to enter the new value. Press 1 to save it.
For example, to set the value to 90 seconds for button 2: press TIME SET. Program 01 appears, which relates to button 1. Press button 2 (up arrow) to move to the program for button 2. Press button 1 to view the set value (e.g., 120). Press 1 again to make the value flash. Use button 3 (down arrow) to change the value to 90. Press button 1 to memorize it. Press Time Set to exit.
Cycle and Hour Counters Display
Press and hold button 1 for a few seconds until "CONTACICLI" (CYCLE COUNTER) appears. To access the HOUR COUNTER, press button 2 until "CONTACICLI" is displayed. The CONTACICLI and CONTAORE values are totals from the beginning and can only be changed or reset via parameters 9 and 10 of the programming (see below). These displays disappear automatically after a few seconds, returning to the machine's normal operating display.
Setting Other Times and Parameters
Press and hold the "Time Set" button while turning on the main switch. Use button 3 to set the password to 990 and confirm by pressing button 1. Use buttons 2 and 3 as arrows to scroll through the menu and set values, and button 1 to select and confirm parameters to modify.
| Prog. No. | Menu | Description | Submenu (default values) |
|---|---|---|---|
| 1 | Version | Indicates the machine's software version | |
| 2 | Cooking Times | Allows modification of the four cooking times (Time Set) | Time 1=60 seconds Time 2=120 seconds Time 3=180 seconds Time 4=240 seconds |
| 3 | Movement Times | Correspond to the times the basket takes to complete a full cycle: T0 (basket descent time), T1 (basket ascent time to draining position), T2 (waiting time for oil to drain), T3 (time to move from draining to discharge position), T4 (waiting time for product discharge). | 1.2 seconds 3.7 seconds 4.0 seconds 4.1 seconds 1.5 seconds |
| 4 | Heating time at start | Time for which heating remains active at the start of each cycle, regardless of temperature control | 30 seconds |
| 5 | Start Set Point | Temperature at which the fan and refrigerator compressor turn on, and a basket "reset" is performed | 75°C |
| 6 | Working Set Point | Oil temperature regulation set point. ATTENTION: The ideal frying temperature is 175°C. Small variations can be made, but avoid exceeding 180°C for safety reasons. | 175°C |
| 7 | Machine Block Set Point | Oil temperature below which the machine stops, awaiting restoration. | 150°C |
| 8 | Temperature Time Out: | Maximum time after which, if the set temperature is not reached, the machine stops. | 25 minutes |
| 9 | Total Cycle Counter | Counts the total number of cooking cycles performed since the start or since the last reset. | 0 |
| 10 | Total Hour Counter | Counts the total operating hours since the start or since the last reset. | 0 |
| 11 | Oil-times | Number of times the temperature exceeds 120°C, after which the "change oil" message appears (press reset to clear). | 12 times |
| 12 | Oil-cycles | Number of cycles after which the "change oil" message appears (press reset to clear). | 300 cycles |
| 13 | Oil-hours | Number of operating hours after which the "change oil" message appears (press reset to clear). | 50 hours |
| 14 | Filter Enable | Enables (1) and disables (0) the filter replacement count. | 1 |
| 15 | Filter-cycles | Number of cycles after which the "change filter" message appears (if installed) (press reset to clear). | 3500 cycles |
| 16 | Filter-hours | Number of operating hours after which the "change filter" message appears (if installed) (press reset to clear). | 4000 hours |
| 17 | Service Enable | Enables (1) and disables (0) the display of the working set-point temperature. | 0 |
| 18 | DC Motor Enable | Switches control between AC motor (0) and DC motor (1). | 1 |
| 19 | DC Motor Speed | Controls the DC motor speed as a percentage. | 92% |
| 20 | Sonda 2 Enable | If enabled (1), controls the air over-temperature probe. | 0 |
| 21 | Sonda 2 Set Point | (If installed) Air temperature at which the probe stops the machine. | 100 |
| 22 | Partialization Set Point | If enabled (1), the machine cycles heating on and off according to Time On and Time Off until the Set Point is reached. | 0 |
| 23 | Time On | Partialized heating time (see above). | 10 seconds |
| 24 | Time Off | Partialized cooling time (see above). | 10 seconds |
| 25 | Language | Language set on the display. | 0 = Italian 1 = English 2 = French 3 = Spanish 4 = German |
| 26 | Oil Timeout | Not in use. | 0 |
| 27 | Delta temp. | Not in use. | 0 |
Autotest and Machine Calibration (Password: 990)
Press and hold button 1 while turning on the main switch. Always use buttons 2 and 3 as arrows and button 1 as Enter.
- Panel Test: Press 1 to enter the test. The display illuminates, and the board LEDs light up one by one. Pressing 1 again lights up all LEDs simultaneously. This allows for centering the board before fixing it to the machine if it's replaced. Press Time Set to exit the test.
- Keyboard Test: Press 1 to enter the test. Pressing the keys displays their corresponding code on the screen. Press Time Set to exit.
- Outputs Test: Press 1 to enter the test, activating the first output (0000001): the heating element turns on. Pressing 1 again cycles through the other outputs. Exit the heating immediately to prevent overheating. 0000010: fan turns on, 0000100: refrigeration unit turns on, 0001000: not in use, 0010000: not in use, 0100000: basket ascends, 1000000: basket descends. Press Time Set to exit.
- AC Motor Test: Press 1 to enter the test. Use button 2 to raise the basket and button 3 to lower it. Press Time Set to exit.
- DC Motor Test (currently not in use on fryers): Press 1 to enter the test. Use buttons 1 and 2 to increase or decrease motor speed, and button 3 to switch between off and on. Press Time Set to exit.
- Motor Microswitch Input Test: Press 1 to enter the test. The display shows 4 zeros. When the microswitch is activated, 0001 appears.
- Eeprom Test: Performs the Eeprom check.
- Analog Test (probes): Press 1 to enter the test. The display shows two bit values read from the analog inputs (PT100 channels).
- Calibration: Press 1 to enter the test. Insert the connector with the calibration resistance for "0 degrees" and press button 3; then insert the connector with the calibration resistance for "200 degrees" and press button 2. Press Time Set to save the calibration and exit.
- Set Default: Pressing 1 performs the machine's default settings, restoring all parameters to their factory defaults (see above).
Press Time Set to exit the menu and return the machine to normal operation.
5) Extraordinary Maintenance
Once a month, check that the condenser (radiator) of the refrigeration unit is not clogged with dust. Clean it with a brush or by blowing air. To access the condenser, open the small door on the right side by unscrewing the top screw.
Other extraordinary maintenance is recommended every six months or every 5000 portions:
- Clean the machine with non-foaming degreasing liquids.
- The connector of the heating element box can be cleaned with alcohol or another liquid that evaporates easily, ensuring it is dried thoroughly before connecting and applying power.
- If you wish to verify the correct operation of the basket after machine maintenance, bring the oil to temperature and perform an empty cycle. Press a button. The basket moves to the frying position for the time corresponding to the pressed button, then rises to the draining position for approximately 3 seconds. In this position, the basket must be completely out of the oil. After draining, the basket rotates until complete discharge, after which the motion reverses, and the basket stops in its initial position.
6) Error Messages
The machine recognizes certain malfunctions, such as broken sensors in the motor or heating system. Upon recognizing a malfunction, the system alerts the operator visually via a display message and audibly with an alternating sound. In such conditions, the machine may lock up. Before proceeding with checks, try resetting by disconnecting power and reconnecting the machine after a few seconds.
Wiring Diagram: The document includes a wiring diagram illustrating the electrical connections of the Eurochef fryer.
Component Identification: Various photographs (FOTO F, G, I, L) are provided to identify key components such as the refrigeration unit evaporator, filter support, electronic board, flat cable, compressor, fan, heating element, various relays, microswitches, and motor.
Laboratory Section: Contains revision history and component lists, indicating modifications and part details.
General Information: Includes revision dates, modified paragraphs, and document control information.