SERVICE MANUAL STEAM CONVECTION OVENS FCV/G 6-10-20 FCV/E 6-10-20 DOC.
CONTENTS Page GENERAL NOTES GENERAL NOTES Functional features Cooking methods Performance capabilities Functional level 2 2 2 3 4 INSTALLATION NOTES 6 ELECTRONIC SECTION The various electronic cards Replacing the cards Temperature visualisation, Lamp test Boiling point temperature calibration 5 5 5 7 9 PARAMETER PROGRAMMING Default programming Normal programming Advanced programming Oven chamber temperature correction para. Oven chamber thermostat setting para.
A particular application of this cycle is the so-called “sous vide” method of cooking of food in special heat-resistant bags or containers. • Reconditioning (most used temperatures are between : 110 and 160 °C) Ideal for reconditioning pre-cooked and chilled food which has been prepared in baking tins, portions or dishes.
GENERAL FUNCTION CHARACTERISTICS FUNCTION LEVEL LEV 2 LEV 3 LEV 4 ACTIVE LEV 6 COMBI COOKING FUNCTIONS: HOT AIR STEAM 300 °C 100 °C 300 °C 100 °C 300 °C 100 °C 300 °C 100 °C STEAM/CONVECTION THERMOSTATICAL STEAM 250 °C - 250 °C 30-99 °C 250 °C 15-99 °C 250 °C 15-99 °C MEAT PROBE REGENERATION CYCLE - • • • • • • LOW SPEED - LOW POWER STEAM RELIEF VALVE Manual Manual • Manual • Automatic HUMIDITY CONTROL HUMIDITY ADJUSTMENT - - • - • • AUTOMATIC SEQUENCES PROGRAMMABLE - - 2 ST
S 301.01-00 OVENS RANGE / GAMMA FORNI MODELS / MULTIFUNCTIONALITY LEVELS AND ELECTRONIC BOARD LIVELLI FUNZIONALI E SCHEDE ELETTRONICHE ZANUSSI 6 6 1/1 LEVEL 2 ISG LEVEL 3 ISG 40 V 6 10 20 6 1/1 10 1/1 10 2/1 20 V 40 V 20 1/1 20 2/1 6 10 POW1 UIA KS POW1 UIA KS • POW1 UIA PRB POW1 UIA PRB 95.
INSTALLATION NOTES The installation procedures are described in detail in the instruction manual supplied with the appliance. The following notes only regard certain points which are considered to be essential for the correct operation of the oven.
which should in turn be earthed. The grounding strap is available as a spare part with the s.p.n. 02898. ELECTRONIC SECTION THE DIFFERENT TYPES OF P.C.B. CARDS REPLACING P.C.B. CARDS Each oven can have from 2 to 3 electronic cards. These are divided into two types: - mother boards, with all inputs - user interface cards MOTHER BOARD (Fig. 3) The mother boards are subdivided into the following categories: - POW 1 as used in ISG ovens - POW 2 as used in ovens with steam generators.
Replacing the mother board Should the replacement of the mother board be necessary it is important that the parameter memory corresponds to the type of microprocessor which comes in several different versions. - If the microprocessor version of the old mother board is the same as the new one: - Take the memory chip off the old board and fit it on the new board.
2. - Normal and advanced programming parameters - Factory settings (default) - Parameter readings indicating the oven’s total amount of operational hours. DISPLAYING THE PROBE TEMPERATURE • By pressing and holding down the two external service buttons “A” and “C”, (see fig.5) the temperature inside the boiler is shown on the oven chamber temperature display. Once the buttons are released the oven chamber temperature will reappear on the display.
6. With the oven working as described above, wait for the by-pass temperature to stabilise itself (this can be verified at any time by pressing the buttons “B” and “C”). This stage could take several minutes. 7. When the temperature has stabilised introduce the confirmation command by pressing all three buttons A,B and C simultaneously. 8. As soon as this action has been carried out the steam generator will switch off and will then cycle normally. 9.
CONFIGURAZIONE SPILLONE MULTIPOINT (FSC) Pressing for the first time after switching the oven on carries out a “LAMP TEST” Start a steam cycle with the following buttons pressed. A continuous steam cycle will start up (one which never disactivates the heating elements) To display the 6 sensors temperatures of MOLTIPOINT probe (FSC fig.
PARAMETER PROGRAMMING DEFAULT PARAMETERS PROGRAMMING When the mother board is replaced without recovering the microprocessor from the previous board the following operations will have to be carried out: • load the default parameters; • enter the normal or advanced programming mode to modify some of the default parameters depending on the oven function level and the power supply; • reset the oven chamber temperature potentiometer (only for function levels 2-3 which use a potentiometer, (UIA p.c.
followed by the number which will then be memorised. • The buttons “A” and “C” will allow you to increase or decrease the number shown on the display. 3. To check if the flashing number corresponds to the one in the list proceed as follows: - If the number corresponds confirm it by pressing the central button “B” again. When the button is released the memorised parameter will appear on the display.
stabilised,see "water boiling point setting" paragraph. At this point the parameter has to be modified in relation to the sat steam stabilized temperature value obtained and 100°C. Example: Oven with boiler- sat steam cycle- oven chamber temperature stabilised at 98°C, default value = 0°C, installation site altitude is less than 300 metres above sea level. ADVANCED PROGRAMMING A B C 1. Press the external buttons. Switch the oven on and release the buttons after the second BEEP 2.
THE HOUR COUNTER PARAMETER The following parameters with the default value “0” function as hour counters: P25 - hCNV P26 - hVAP P27 - hMIX These represent respectively the number of operational hours for the oven in the convection cycle (hCNV), steam and thermostatically controlled steam (hVAP), combined and regeneration (hMIX). The combined total of these parameters equals the total operational hours of the appliance. They will show zero if the oven is new or the preset parameters have been reloaded.
GAS INSTALLATIONS WITH AIR BLOWN BURNERS The gas circuit is made up of the following components: • a “TANDEM” gas solenoid valve unit consisting of: - a safety solenoid valve which remains open during the entire operating time; - a second solenoid valve (normally closed) which only opens when a heating command is received, thus allowing the passage of the gas to the burners; - a third device which permits the partial closing of the gas solenoid valve in order to reduce the gas flow during operation, thus re
vanced dependent on which number appears) and set the correct value as taken from the list of parameters. TROUBLE SHOOTING GUIDE The following is a list of possible anomalies which could occur during the lifetime of the appliance. The probable causes and possible solutions required to reset the appliance are listed below The trouble shooting guide is divided in two sections. I Electronic section with autodiagnostics and alarm signals shown on the oven display. II Steam convection section.
cooking and validating procedure: - core temperature before blackout > HACCP_TPRB_THR (parameter 115, def.=50°C) - core temperature after blackout > HACCP_TPRB_THR (parameter 115, def.=50°C) - cavity temperature after blackout > HACCP_SCEL_THR (parameter 116, def.=65°C) If these conditions are not verified, the FSC validation result is "not OK" while the oven continues cooking.
DESCRIPTION OF THE P.C.B PARAMETERS ACCORDING TO THE DIFFERENT LEVELS The program stored in the microprocessor of the controller unit is designed to cover the whole extension of operational and control requirements of the whole family of forced-convection ovens/steamers FCV 6-1020. Each type of oven, differing for its functional level, capacity, supply energy, etc., has its own particular list of parameters. There are 2 types of parameters, ie.: 1. normal parameters and 2. advanced parameters.
FLDISPAP 0 It enables, if set at “0”, or inhibits, if set at “1”, the function of the door interlock microswitch in following cycles: hotair, hot-air with cavity venting open (level 6 only) and combined hot-air/steam. The need for this parameter to be set at “1” could be felt by the cook who, when on duty, generally happens to open the door quite frequently in order to put dishes in the oven force-heating.
- 5 on boiler ovens with functional level L4 - 6 on boiler ovens with functional level L6 mAXDUR min 480' (8 hours) Longest time that can be pre-set for each phase of the cooking process. It expresses the longest possible duration of a time-controlled cooking phase, if the continuous operation mode is not considered. It is operative in the levels that are provided with electronic timer (L4, L6).
the gas-heated ones using a fan-assisted or blast burner, in which, owing to the time required for purging the mixing chamber, the fume condenser can be started only after a delay of 18 seconds. SINCBOL °C 120 Boiler scaling alarm tripping temperature. Such a parameter expresses the temperature value, as measured by the boiler probe, which, when reached owing to the thickness of the scale formed in the boiler, will cause the controller to illuminate the boiler scaling alarm indicator.
the power-actuated drainage system of the boiler to discharge the water there from. This occurs in the case that the counter of the operation hours of the boiler has reached its own pre-set value (see parameter HHBOLMX). This parameter is set at a value of 50°C in view of preventing the oven from automatically letting off water which is too hot. FL_ABHWI Enabling 1/2 middle power. 2.
SCELONMX sec 15 (93) Max time gap of cell heaters on due to temperature of cell higher or equal to cell temperature setting. SEL5060 0 (108) Selection of the power supply frequency of the oven net. 0 = MIS 50Hz 1 = MIS 60Hz 2 = FORZ 50Hz 3 = FORZ 60Hz MIS: automatically measured frequency FORZ: forced frequency (set) SHUMCNVFD1 °C 50 (96) SHUMCNVFD2 °C 70 (97) ISHUMCNVF °C 1 (98) Parameters for controlling humidity of convection empty cycle.
Positive results will be obtained when value is set to "1" only if threshold values of parameters 119 and 120 are both surpassed. When value is set to "0" only one of both parameters needs to be surpassed. sHACCP_DOOR_THR sec 30 (117) Maximum time for keeping the door open. This value is not to be surpassed while keeping the oven door opened so that the device FSC is able to operate. HACCP_F_HIGH 50 (122) Threshold of coefficient "F" to obtain positive results with STANDARD RISK food.
NORMAL PROGRAMMING PARAMETERS DENOMINATION 26 97-05
ADVANCED PROGRAMMING PARAMETERS DENOMINATION FSC S 301.01-00 95.
