Blast Chiller and Blast Freezer printed circuit board Blast Chiller and
Contents
1. 20 5 m SYSTEM parameters 9 Value Description Chiller Freezer Compressor protection timeout seconds Minimum time between two ON phases Phase measurement type P minutes H hours 1 C Cell Temperature probe offset Pressure switch contact mode OP open CL Close Temperature mode C or F Technical Training amp Service Villotta ITALY 39 SYSTEM parameters 10 Name Value Description Chiller Freezer Fan motors contact mode OP open CL close Pressure switch alarm delay minutes Sanitise lamp ON time minutes SLt 15 15 Sanitise lamp ON temperature C If Tin lt 15 C than the lamp is OFF Buzzer mode for cycle end sound bbl second on and off for 30 seconds Technical Training amp Service Villotta ITALY 40 SYSTEM parameters 11 Chiller Freezer 5 Ibl 5 Ibl Buzzer mode for pressure switch alarm 1b1 1 second on and off for 30 seconds 6 2bl 6 2bl Buzzer mode for cell probe alarm 2bl 2 on 1 off for 30 seconds bFC Buzzer mode for cycle end incorrect bbl2 second on and off for 30 seconds AP EAP Probe presence flag AP food probe EAP evaporator and food probe 15 15 Programming buttons timeout If nothing is pressed after tPO than EXIT seconds Technical Training amp Service Villotta ITALY 41 SYSTEM parameters 12 Name Value Description Chiller Freezer Display timeout seconds 20 Ventilators on time during the d2. Programming 5 To access the SYSTEM parameters when the appliance is ON but no cycles have been selected nor operative proceed as follow e Keep depressed contemporarily the buttons 2l PROG and START STOP for 5 seconds Push the button UP S until the label tAb S l displayed Than push PROG for 5 seconds The label PAS will appear Visualise the parameter with the SET button Push the button UP 5 and DOWN until the NUMBER 573 is visualised then press SET NOTE At this point all the parameters are visible The SYSTEM will differ from the USER as they are blinking The PROG button is hidden beneath the command panel at the lower left corner It is present also if the UV Lamp logo is not printed on the label Technical Training amp Service Villotta ITALY 24 Programming 6 To adjust the SYSTEM parameters follow these instructions Disconnect the appliance from the mains 5 Se 7 CS Depress contemporarily the buttons PROG and START START STOP at the same time power on the SE appliance maintain depressed the buttons for at least 5 seconds The display will visualise the first settable parameter diF Push the button SET to see the value of the parameter EST Push the button UP H and DOWN ON OFF on to set the desired value NOTE BOARD FIRST VERSION S Push the button SET to store the new parameter To adjust the next parameters press the button UP Tec
3. RIT Print after a power fail Technical Training amp Service Villotta ITALY 29 USER parameters 5 M dm system when the printer is connected Language of print it gb de fr es se Alarm delay minutes in conservation Technical Training amp Service Villotta ITALY 30 SYSTEM parameters 1 Name Value Description Chiller Freezer 15 Alarm differential Tset Tin gt LAH than alarm label Li ON with delay AtA Alarm differential Tin Tset gt HAC than alarm label Hi ON with delay AtA happened at T than reset T 2 C Defrost type EL Heaters in hot gas Air ventilation 2 Alarm reset differential C If alarm Technical Training amp Service Villotta ITALY 31 SYSTEM parameters 2 Value Chiller ue a C Defrost enabled without evaporator probe Appliance type Y Blast Chiller N Blast Chiller and Freezer Initial and time defrosts enabled Initial defrost end temperature Technical Training amp Service Villotta ITALY SYSTEM e 3 Chiller ge 10 10 n Sub for defrost end in chiller mode dEC 10 10 RE T for defrost end in freezer mode Dripping time seconds dF rt Defrost interval count mode rt Real time dF Digifrost ddL n Display mode during defrost n actual temperature y locked lb dEF label Technical Training amp Service Villotta ITALY 33 SYSTEM parameters 4 Name V
4. battery based device that store for about one hour the time elapsed from a power failure Whenever this time is longer than 20 a blinking label PF is shown on the display while the cycle restarts according to the previous selection Technical Training amp Service Villotta ITALY 9 Features Pre arrangement for HACCP system connection The Hazard Analysis and Critical Control Point can be implemented in two different ways By a temperature recorder or a printer when the appliance works as a stand alone unit By connecting the unit to a computer controlled net by means of a dedicated serial interface EWRS when the appliance works within a system in the kitchen Technical Training amp Service Villotta ITALY 10 Features 8 Automatic food probe or time cycle selection The software of the EWFC is designed to recognise automatically when the probe is inserted in the food When the cycle is started the difference between the temperature measured by the food probe and the internal temperature must remain above 7 C for 15 Otherwise the time cycle is automatically selected 110 for the BC and 270 for the BF Technical Training amp Service Villotta ITALY 11 Features 9 Automatic defrost The defrosting is automatically activated at the end of each BC BF cycle It lasts until the temperature of the evaporator reaches 10 C 15 C for the freezer The defrost ends anyway after twenty min
5. freezing cycle To visualise the core product or cell temperature during function press the temperature display button Technical Training amp Service Villotta ITALY 17 Operations 6 Freezing cycle O START y Select the blast freezing cycle by pushing the DP Eros indicated button then START STOP The compressor will run continuously until the temperature has reached the set parameter value SCC 38 C Then it will work according to the measured internal temperature until the core product temperature will reach the set value SSC 18 C Afterwards the EWFC will switch into conservation mode and the compressor will work until the air temperature will match the set SE2 20 C If you have selected the time freezing mode the cycle will stop when the set time 270 parameter i1C has elapsed To visualise the core product or cell temperature during function press the temperature display button Technical Training amp Service Villotta ITALY 18 Operations 7 Selecting a time cycle In all the preceding phases before to press START STOP press the indicated button The predetermined time cycles are set by the manufacturer 110 minutes for chilling cycles 2 0 minutes for freezing cycle Keeping this key depressed for more than five seconds will permit to decrease swiftly the set time The value can be decreased slowly by depressing the button in rapid succession until the desired value is display Selecting t
6. 8798101 In the RS232 interface j U N RS485 Male Female ILME Connector EWTK AND WIRING CODE CK03V CKFD04 CODE 639727000 639726900 0646737500 OR PNC 881474 639726200
7. Blast Chiller and Blast Freezer printed circuit board EWFC ical Training amp Service Villotta ITALY Introduction The EWFC circuit board for Blast Chillers and Freezers was developed for Electrolux Z G l by Eliwell with the aim of fulfilling the following tasks Satisfy customer s demand of new features mprove the user s interface Update the technological content of the circuit board Technical Training amp Service Villotta ITALY 2 Presentation topics Features pages 04 Operation pages 13 Programming pages 20 Parameters list pages 25 Alarm pages 41 Technical Training amp Service Villotta ITALY 19 24 40 43 Features 1 USER Food probe or time controlled BC BCF cycles Hard and Soft Blast Chilling cycles e Administration of acoustic signals e Germicide lamp control optional TECHNI CAL e Running cycle memory Power Failure message indication Prearranged for HACCP system connection optional Automatic cycle type selection mode probe or time Automatic defrost Technical Training amp Service Villotta ITALY Features 2 Food probe or time controlled BC BCF cycles A common way to operate the BC BCF exclude the use of the probe for the preparation of several foodstuff In this case it is necessary to pre set a pull down time afterwards the appliance will switch from the blast chilling freezing mode to the conservation mode Techni
8. alue Description Freezer Fan VET than te Bowers are topped temperature in chiller mode If T gt FSA than the blowers are VET than te Bowers are topped lsi in stop temperature in freezer mode If T gt FSA than the blowers are stopped MM NEU E Ventilators BEES E time delay quem Soft chilling time minutes Dee Technical Training amp Service Villotta ITALY 34 SYSTEM parameters 5 Name Value Description Chiller Freezer L C mee UT mem Hard Chilling time minutes Technical Training amp Service Villotta ITALY 35 SYSTEM parameters 6 Name Value Description Chiller Freezer Not Used Technical Training amp Service Villotta ITALY 36 SYSTEM parameters 7 Name Value Description Chiller Freezer last Freezing cycle time minutes y y Door switch working mode y compressor relay OFF oF oF Ventilators mode with door open oF OFF on ON minutes n n Light mode with door open n OFF y ON Technical Training amp Service Villotta ITALY 37 wii Temperature alarm delay with door open SYSTEM parameters 8 Name Value Description Chiller Freezer G Light on timeout seconds Door open alarm delay minutes 20 Power Failure timeout if PF time gt PFt than PF alarm ON minutes Food probe detection timeout seconds 7 7 Temperature algorithm window for food probe detection C Technical Training amp Service Villotta ITALY 38
9. cal Training amp Service Villotta ITALY 5 Features 3 Hard and Soft Blast Chilling cycles Some foodstuff can withstand a very low air temperature during the chilling cycle and this is useful to achieve the shortest pull down time Nevertheless vegetables or delicate dishes require a smoother chilling process to preserve their characteristics unchanged For these reasons the Soft chilling works with higher internal temperature 5 C while the Hard chilling cycle is performed at 12 C Technical Training amp Service Villotta ITALY 6 Features 4 Administration of acoustic signals The EWFC manages four types of acoustic information each one is characterised by a specific sound Cycle end ON OFF with a rate for 30 Cycle incorrect ON OFF 2 for 30 Pressure switch alarm ON OFF with a 1 rate for 30 Probes alarm 2 ON and 1 OFF for 30 Technical Training amp Service Villotta ITALY y Features 5 AI 23 Germicide lamp control The EWFC is prearranged to activate a UV lamp This optional feature is useful to sanitise the tools utilised for the food preparation The lamp can be activated only if the internal temperature is above 15 and the door Is closed The lamp remains activated for ten minutes afterwards it will be switched off automatically Technical Training amp Service Villotta ITALY 8 Features 6 Running cycle memory The EWFC board is equipped with a
10. efrost cycle Seconds duty cycle Fdr Fds 120 120 Ventilators off time during the defrost ees seconds duty cycle Fdr Fds memes Technical Training amp Service Villotta ITALY 42 Alarm 1 The EWFC board has 11 different types of alarms With these alarms the EWFC board has the possibility to check in a real time the proper working of the blast chiller amp blast freezer During the alarms the display visualises the alarm code blinking or continuos and the buzzer buzzing or not buzzing Technical Training amp Service Villotta ITALY 43 Alarm 2 Alarm Stuatus Description Blinking Buzzer Faulty inner liner probe alarm Faulty temperature probe alarm Faulty evaporator probe alarm Inner liner low temperature alarm Inner liner high temperature alarm Pressure switch maximun time alarm Technical Training amp Service Villotta ITALY 44 Alarm 3 Alarm Stuatus Description Blinking Buzzer Eu pem gen Fan motor Lilo pe pe es time open ie alarm YES YES Maximun time for chilling or freezing cycle over time alarm YES YES Wrong time for the chilling or freezing cycle temperature failed alarm Maximun time of power failure alarm Technical Training amp Service Villotta ITALY 45 INTEGRATED HACCP CONNECTORS AND CODES 6 ways PHOENIX connector CODE 639723400 Connector see connection diagram 599794000 CK031 CKMD04 WIRING CABLE 063
11. he defrost cycle To select a defrost cycle manually depress this button NOTE It is not possible to begin the defrost during the blast chilling or freezing cycles Technical Training amp Service Villotta ITALY 19 Programming 1 The EWFC board allows the adjustment of 80 operation parameters through two Programming routines 21 parameters can be visualised and have direct access without password These are the USER parameters The remaining 59 values the SYSTEM parameters are accessible by password or by resetting the appliance 11 further parameters are not visualised and not programmable Technical Training amp Service Villotta ITALY 20 Programming 2 To access the USER parameters when the appliance is ON but no cycles have been selected nor operative proceed as follow e Z ee e START STOP el Keep depressed contemporarily the buttons PROG and START STOP for 5 seconds The display will visualise the name of the first settable parameter diF Push the button SET to see the value of the parameter Push the button UP S and DOWN H to set the desired value Push the button SET to store the new parameter Proceed to the next parameters press the button UP S The PROG button is hidden beneath the command panel at the lower left corner It is present also if the UV Lamp logo is not printed on the label Technical Training amp Service Vil
12. hnical Training amp Service Villotta ITALY 25 USER parameters 1 Value Description Thermostat differential C 20 Maximum defrost duration in chiller mode minutes 20 Maximum defrost duration in freezer mode minutes EN Defrost intervals in chiller mode hours Defrost intervals in freezer mode hours Technical Training amp Service Villotta ITALY 26 USER parameters 2 5 Internal air temperature set point during the Soft Chilling cycle C 3 Food probe set point to conclude the Soft chilling cycle C 3 Conservation temperature set point in chiller mode C 12 Internal air temperature set point during the Hard Chilling cycle C 3 Food probe set point to conclude the Hard chilling cycle C Technical Training amp Service Villotta ITALY 27 USER parameters 3 Name Value Description Conservation ae set point in chiller mode Internal air temperature set hen during the Blast freezing cycle Food probe set petu i conclude the Blast freezing cycle Conservation temperature set point in freezer mode C Not used only for enter in system parameter Technical Training amp Service Villotta ITALY 28 USER parameters 4 2 Alarm delay minutes in freezer chiller mode 1 Family ID code to identify the EWFC when it is connected to a computer Print interval minutes Device ID code to identify the EWFC when it is connected to a computer 40 5 0 Y
13. lotta ITALY 21 Programming 3 To access the USER parameters when the appliance is OFF but Supplied proceed as follow start Keep depressed contemporarily the buttons P HUS PROG and START STOP for 5 seconds i The display will visualise the name of the first settable parameter diF Push the button SET to see the value of the parameter Push the button UP and DOWN ON OFF to OFF set the desired value NOTE BOARD FI RST VERSION 0 Push the button SET to store the new parameter Proceed to the next parameters press the button UP H The PROG button is hidden beneath the command panel at the lower left corner It is present also if the UV Lamp logo is not printed on the label Technical Training amp Service Villotta ITALY 22 Programming 4 To adjust the SYSTEM parameters follow these instructions Disconnect the appliance from the mains Depress contemporarily the buttons PROG and START START STOP at the same time power on the 25 appliance maintain depressed the buttons for at least 5 seconds Se 47 I The display will visualise the first settable parameter diF Push the button SET to see the value of the parameter J ES EST Push the button UP S and DOWN H to set the desired value Push the button SET to store the new Sg parameter To adjust the next parameters press the button UP Technical Training amp Service Villotta ITALY 23
14. ring function press the temperature display button Technical Training amp Service Villotta ITALY 15 Operations 4 Hard chilling cycle selection Select the hard chilling cycle by pushing the STOP indicated button then START STOP The compressor will run continuously until the temperature has reached the set parameter value SCH 12 C Then it will work according to the measured internal temperature until the core product temperature will reach the set value SSH 3 C Afterwards the EWFC will switch into conservation mode and the compressor will work until the air temperature will match the set SEH 3 C If you have selected the time chilling mode the cycle will stop when the set time 110 parameter iH2 has elapsed To visualise the core product or cell temperature during function press the temperature display button Technical Training amp Service Villotta ITALY 16 Operations 5 Selecting blast chilling freezing cycles Only BCF versions When you turn ON the appliance push the indicated ne button to select the desired cycle The one star led indicates the chilling cycle the three stars indicate the freezing Select the soft chilling cycle by pushing the indicated TOF button then START STOP Ez START y Select the hard chilling cycle by pushing the indicated o button then START STOP a w NOTE It is not possible to select HARD SOFT mode for the
15. utes In conservation mode the EWFC Is programmed to perform a defrost every four hours In this case the cycle will end when the temperature reaches 10 C either in the positive and in the low temperature mode Technical Training amp Service Villotta ITALY 12 Operations 1 ER ls P 1 Ak Start up Defrost Cycle selection Visualisation Time cycles Alarms refer to the user s manual Technical Training amp Service Villotta ITALY 13 Operations 2 DN l P 4 START UP Push the ON OFF button The Cycle selection key leds will start to blink By pushing the key once the led beside the single star will lit reter to t Techn je users manu 14 Operations 3 iX Soft chilling cycle selection S START Select the soft chilling cycle by pushing the indicated button then START STOP The compressor will run continuously until the temperature has reached the set parameter value SCA 5 C Then it will work according to the measured internal temperature until the core product temperature will reach the set value SSA 3 C Afterwards the EWFC will switch into conservation mode and the compressor will work until the air temperature will match the set 5 1 3 C If you have selected the time chilling mode the cycle will stop when the set time of 110 parameter i1A has elapsed To visualise the core product or cell temperature E du
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