EVF815 Installer manual ver. 2.0 Code 144F815E204 EVF815

Transcription

1 EVF815 Split execution controller for temperature-controlled blast chillers (with capacitive touch-key user interface, which can be integrated into the unit) ENGLISH INSTALLER MANUAL ver. 2.0 CODE 144F815E204 page 1 of 60

2 Important Important Read this document thoroughly before installation and before use of the device and follow all recommendations; keep this document with the device for future consultation. The following symbols support reading of the document: indicates a suggestion indicates a warning The device must be disposed of in compliance with local Standards regarding the collection of electric and electronic equipment. page 2 of 60

3 Index 1 INTRODUCTION Introduction Summary table of the main features and the models available DESCRIPTION Description of the user interface Description of the control module DIMENSIONS AND INSTALLATION User interface dimensions Control module dimensions User interface installation Control module installation Installation warnings ELECTRIC CONNECTION Electric connection Connection of the terminating resistors Warnings for the electric connection USER INTERFACE Foreword Switching the device on/off The display Cabinet temperature display Display of the temperature detected by the needle probe Evaporator temperature display Defrosting activation in manual mode Switch-on/off of the cabinet light in manual mode Locking/unlocking the keyboard Silencing the buzzer OPERATION Foreword Blast chilling and storage Hard blast chilling and storage Deep freezing and storage Soft deep freezing and storage Pre-cooling start-up Management of the test regarding correct insertion of the needle probe Switching on UV light for sterilisation cycle Heating the needle probe HACCP FUNCTION Foreword Display of information relative to the HACCP alarms Deleting the information relative to the HACCP alarms COMPRESSOR OPERATING HOURS COUNT Display of compressor operating hours Deleting the compressor operating hours CONFIGURATION Setting the real date and time Setting the configuration parameters page 3 of 60

4 9.3 Restoring the factory settings List of configuration parameters SIGNALS AND INDICATIONS Signals Indications ALARMS Alarms ERRORS Errors ACCESSORIES EVKEY programming key Introduction Description Dimensions Uploading the configuration parameters Downloading the configuration parameters Non-optoisolated RS-485/TTL serial interface EVIF20TSX Introduction Description Dimensions Connection to the device EVPROG01 connection kit Introduction Description Dimensions Connection to the device TECHNICAL DATA Technical data page 4 of 60

5 1 INTRODUCTION 1.1 Introduction EVF815 is a digital controller studied to manage temperature-controlled blast chillers, which can be mechanically and aesthetically integrated into the unit. The controller is fitted with: - clock - signal buzzer and alarm - 3 analogue inputs (cabinet probe, needle probe and evaporator probe) for PTC/NTC probes - 2 digital inputs (door micro switch and high pressure) - 5 digital outputs (electromechanical relays), 1 x 30 A 250 VAC for compressor management, 2 x 16 A 250 VAC for management or defrosting and a utility set for door heating elements or the condenser fan, 2 x 8 A 250 VAC for management of the evaporator fan and a fifth utility that can be set for the cabinet light, needle probe heating or UV light; defrosting can be electric, hot air, air or air with door open - serial port with MODBUS communication protocol. The device can manage both temperature and timed blast chilling and storage cycles and deep freezing and storage cycles and also the hard and soft types. Every operating cycle can be preceded by pre-cooling; the temperature-controlled cycles are also preceded by a twostage test for verification of the correct insertion of the needle probe. The device is available in split execution (user interface + control module). The user interface is behind a Plexiglas sheet and is made up from a custom 4 digit display (with function icons) and 6 capacitive touch-keys; installation is envisioned on rear of panel with biadhesive tape. The control module is without cover and installation is envisioned on flat surface with spacers. Via the "HACCP" function, up to 9 events can be memorised for each of the 3 HACCP alarms (temperature-controlled blast chilling or deep freezing not concluded within the maximum duration alarm, maximum temperature during storage alarm and power cut during storage alarm); the critical value, date and time at which the alarm occurred and the duration can be memorised for each HACCP alarm. The configuration parameters can be uploaded and downloaded using the EVKEY programming key (to be ordered separately). Via a serial interface (to be ordered separately), it is also possible to connect the controller to the Parameters Manager set-up software system, to the monitoring and surveillance system of the RICS plants or to the data recording device, to download the recorded data (via USB), to upload and download EVUSBREC01 configuration parameters. The following are indicated among the many other features: - IP65 protection rating of the user interface - direct loads connection (except the utility managed by the fifth digital output) - management of three types of backlight - memorisation of the defrosting interval - management of temperature alarms - compressor operating hours count - "keyboard lock" function. page 5 of 60

6 1.2 Summary table of the main features and the models available The following table illustrates the main features of the device and the models available. / indicates the feature can be set via a configuration parameter. User interface (without cover) EVF x 50.5 mm ( x in; L x H) custom 4 digit display (with function icon) number of keys (capacitive touch-key type) 6 C decimal point Control module (without cover) EVF x mm (3.897 x cm; L x H) Connections EVF815 faston + fixed screw terminal board Power supply EVF VAC Analogue inputs EVF815 cabinet probe PTC/NTC needle probe PTC/NTC evaporator probe PTC/NTC Digital inputs (for NO/NC contact) EVF815 door micro switch high pressure Digital outputs (electromechanical relays; A 250 VAC) EVF815 compressor 30 A defrosting 16 A page 6 of 60

7 evaporator fan 8 A door heating elements/condenser fan 16 A cabinet light/needle probe heating/uv light 8 A Communication port EVF815 serial port with MODBUS communication protocol Other features EVF815 protection rating of the user interface IP65 clock signal buzzer and alarm direct loads connection except for the utility managed by the fifth digital output management of three types of backlight management of blast chilling and storage/deep freezing and storage cycles management of temperature/time controlled operation cycles hard/soft operating cycles management management of the test regarding correct insertion of the needle probe memorisation of the defrosting interval management of temperature alarms compressor operating hours count HACCP function "keyboard lock" function configuration parameters access password restoring the factory settings page 7 of 60

8 Codes EVF815 codes EVF815P9 For further information, see chapter 14 "TECHNICAL DATA"; for other models contact the Evco sales network. page 8 of 60

9 2 DESCRIPTION 2.1 Description of the user interface The following drawing illustrates the aspect of the EVF815 user interface. The following table illustrates the meaning of EVF815 user interface parts. Part Meaning 1 communication port with the control module (signal) 2 blast chilling key 3 defrosting/auxiliary key, hereon also called DEEP FREEZING key 4 hard blast chilling or soft deep freezing key, hereon called HARD/SOFT" key 5 display 6 decrease key, hereon call "DOWN key" 7 increase key, hereon call "UP key" 8 switch-on/switch-off/cycle start/cycle cut-off key, hereon called "START/STOP key" 9 communication port with the control module (power supply) For further information, see the next chapters. page 9 of 60

10 2.2 Description of the control module The following drawing illustrates the aspect of the EVF815 control module. The following table illustrates the meaning of EVF815 control module parts. Part Meaning 1 serial port with MODBUS communication protocol 2 communication port with the user interface (signal and power supply) For further information, see the next chapters. page 10 of 60

11 3 DIMENSIONS AND INSTALLATION 3.1 User interface dimensions The following drawing illustrates the EVF815 user interface dimensions; these are expressed in mm (in). 3.2 Control module dimensions The following drawing illustrates the EVF815 control module dimensions; these are expressed in mm (in). page 11 of 60

12 3.3 User interface installation Rear of panel, with biadhesive tape. 3.4 Control module installation On flat surface, with spacers. 3.5 Installation warnings - make sure that the device work conditions (temperature of use, humidity, etc.) lie within the limits indicated; see chapter 14 "TECHNICAL DATA" - do not install the device near to any heat sources (heating elements, hot air ducts etc.), equipment containing powerful magnets (large diffusers, etc), areas affected by direct sunlight, rain, humidity, excessive dust, mechanical vibrations or shocks. - any metal parts in proximity of the control module must be at a distance such that they do not compromise the safety distances. - make sure the display is perfectly adherent to the methacrylate - in compliance with Safety Standards, the device must be installed correctly and in a way to protect against any contact with electric parts; all parts that ensure protection must be fixed in a way that they cannot be removed without the use of tools. page 12 of 60

13 4 ELECTRIC CONNECTION 4.1 Electric connection The following drawing illustrates the EVF815 electric connection. The utility managed by the K4 output, depends on parameter u1, as follows: - door heating elements (u1 = 0, pre-defined setting) - condenser fan (u1 = 1). For the settings relative to the parameters, see chapter 9 CONFIGURATION. The utility managed by the K5 output, depends on parameter u11, as follows: - cabinet light (u11 = 0, pre-defined setting) - needle probe heating (u11 = 1) - UV light (u11 = 2). For the settings relative to the parameters, see chapter 9 CONFIGURATION. The serial port is for the connection of the controller to the following additional products: - EVKEY programming key - Parameters Manager set-up software system - RICS plants monitoring and surveillance systems - Device for recording data, for downloading the data recorded (via USB), for uploading and downloading EVUSBREC01 configuration parameters. The port must not be used simultaneously with more that one of these products. page 13 of 60

14 4.1.1 Connection of the terminating resistors The terminating resistor must be connected in order to reduce the reflections on the signal transmitted along the cables that connect the user interface to the control model. To connect the terminating resistors, position the jumper as illustrated in the following drawing. To disconnect the terminating resistors, position the jumper as illustrated in the following drawing. 4.2 Warnings for the electric connection - do not use electric or pneumatic screwdrivers on the device terminal board - if the device has been taken from a cold to hot place, humidity could condense inside; wait about 1 hour before powering it - make sure that the power supply voltage, the frequency and the operational electric power of the device, correspond with those of the local power supply; see chapter 14 "TECHNICAL DATA" - disconnect the device power supply before proceeding with any type of maintenance - do not use this device as a safety device - for repairs and information regarding the device, contact the EVCO sales network. page 14 of 60

15 5 USER INTERFACE 5.1 Foreword The following operating status exist: - the off status (the device is not powered) - the stand-by status (the device is powered and is off) - the on status (the device is powered, is on and is in stand-by for the start-up of an operating cycle) - the run status (the device is powered, is on and an operating cycle is in progress). Hereon, the term "device switch-on" means the passage from the "stand-by" status to the "on" status. The term "switch-off" means passage from the "on" status to the "stand-by" status. If a power cut occurs during the "stand-by" status or during the "on" status, the device will repropose the same status when the power supply is restored. If a power cut occurs during the "run" status, the device will operate as follows when the power supply is restored: - if a temperature-controlled blast chilling or deep freezing operation was in progress, these will be started again from the beginning - if a timed-controlled blast chilling or deep freezing operation was in progress, these will be started again from the moment the power supply was cut-off - if storage was in progress, this will be re-proposed. 5.2 Switching the device on/off Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the START/STOP key down for 1 s: the LED will switch on/off. 5.3 The display The display is off during the "off" status and during the "stand-by" status. The display shows the cabinet temperature during the "on" status. The device will operate as follows during the "run" status: - if a temperature-controlled blast chilling or deep freezing operation is in progress, the display will show the temperature detected by the needle probe - if a time-controlled blast chilling or deep freezing operation is in progress, the display will show the residual time of the duration of the same - if storage is in progress, the display will show the cabinet temperature. 5.4 Cabinet temperature display Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select Pb1. 4. Press and release the BLAST CHILLING key: the display will show the cabinet temperature. Operate as follows to exit the procedure: 5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show Pb1 again. 6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The display" or do not operate for 60 s. page 15 of 60

16 5.5 Display of the temperature detected by the needle probe Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select Pb2. 4. Press and release the BLAST CHILLING key: the display will show the temperature detected by the needle probe. Operate as follows to exit the procedure: 5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show Pb2 again. 6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The display" or do not operate for 60 s. If the needle probe is not enabled, i.e. if parameter P3 is set at 0, the Pb2 label will not be displayed. 5.6 Evaporator temperature display Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select Pb3. 4. Press and release the BLAST CHILLING key: the display will show the evaporator temperature. Operate as follows to exit the procedure: 5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show Pb3 again. 6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The display" or do not operate for 60 s. If the evaporator probe is not enabled, i.e. if parameter P4 is set at 0, the Pb3 label will not be displayed. 5.7 Defrosting activation in manual mode Operate as follows: 1. Make sure the device is in the "on" status or a storage is in progress. 2. Make sure that the keyboard is not locked and that no procedure is in progress. 3. Hold the UP key down for 4 s: the LED will switch on. If the evaporator probe is enabled, i.e. the parameter P4 is set at 1 and on activation of defrosting the evaporator temperature is above that established with parameter d2, defrosting will not be activated. 5.8 Switch-on/off of the cabinet light in manual mode Operate as follows: 1. Make sure that parameter u11 is set at Make sure no procedures are in progress 3. Press and release the DEEP FREEZING key for 1 sec.: the AUX LED will switch on/off. page 16 of 60

17 5.9 Locking/unlocking the keyboard Operate as follows to lock the keyboard: 1. Make sure no procedures are in progress 2. Hold the DOWN key and the START/STOP key down for 1 s: the display will show Loc for 1 s. The following operations will not be allowed if the keyboard is locked: - switching the device on/off - cabinet temperature display (with the procedure given in paragraph 5.4) - display of the temperature detected by the needle probe (with the procedure given in paragraph 5.5) - evaporator temperature display - defrosting activation in manual mode - operating cycle start-up/cut-off - switching on UV light for sterilisation cycle - heating the needle probe - display of information relative to the HACCP alarms - deleting the information relative to the HACCP alarms - display of compressor operating hours - deleting the compressor operating hours - setting the real date and time. Operate as follows to unlock the keyboard: 1. Make sure no procedures are in progress 2. Hold the DOWN key and the START/STOP key down for 1 s: the display will show UnL for 1 s Silencing the buzzer Operate as follows: 1. Make sure no procedures are in progress 2. Press and release the key. page 17 of 60

18 6 OPERATION 6.1 Foreword The devices can manage the following operating cycles: - blast chilling and storage - hard blast chilling and storage - deep freezing and storage - soft deep freezing and storage. For further information, see the next paragraphs Every operating cycle can be preceded by pre-cooling; see paragraph 6.6 "Pre-cooling". The temperature-controlled cycles are preceded by a test to verify the correct insertion of the needle probe; see paragraph 6.7 " Test for verification of the correct insertion of the needle probe"; the time-controlled cycles are not preceded by any test. If the needle probe is not enabled, i.e. if parameter P3 is set at 0, the temperature-controlled cycles will be started with time-control. The following functions can also be used: - switching on sterilisation cycle UV light - heating the needle probe. For further information, see the next paragraphs 6.2 Blast chilling and storage The temperature-controlled blast chilling and storage cycle is divided into the following two phases: - blast chilling - storage On conclusion of a phase, the device passes automatically to the next. Operate as indicated to start the cycle: 1. Make sure the device is in the "on" status. 2. Make sure that the keyboard is not locked and that no procedure is in progress. 3. Press and release the BLAST CHILLING key: the LED and the LED will flash. If parameter r21 has value 1, press and release the BLAST CHILLING key to start the cycle with timed-control: the LED and the LED will flash and the LED will switch off (press and release the BLAST CHILLING key again to start the cycle with temperature-control). 4.1 If parameter r19 is set at 0, the display will show the work set-point during blast chilling; this value can also be set via parameter r7. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled blast chilling; this value can also be set via parameter r If parameter r19 is set at 1, the display will show the blast chilling end temperature; this value can also be set via parameter r3. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled blast chilling; this value can also be set via parameter r Press and release the UP or DOWN key within 15 s to modify the parameter value. 5. Press and release the START/STOP key: the LED will remain permanently on and the test to verify the correct insertion of the needle probe will be started; see paragraph 6.7 " Test for verification of the correct insertion of the needle probe". If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, also the will remain permanently on and the cycle will be started with timed-control. 5.1 If the test is completed successfully, the cycle will be started. page 18 of 60

19 The maximum blast chilling duration count is started on condition that the temperature detected by the needle probe is below that established with parameter r If the test is not completed successfully, the cycle will be started with timed-control. During blast chilling, the display shows the residual time of the blast chilling duration and the LED is on. To modify the residual time, operate as indicated: Press and release the UP or DOWN key again to modify the time value: the display will flash Do not operate for 4 s: the display will stop flashing and remain on permanently. The successive parameters establish the following values: - parameter r1 establishes blast chilling duration - parameter r7 establishes the work set-point during blast chilling. Operate as indicated to stop the cycle: 6. Hold the START/STOP key down. During blast chilling, the display shows the temperature detected by the needle probe and the LED is on. The successive parameters establish the following values: - parameter r3 establishes the blast chilling end temperature - parameter r5 establishes the maximum blast chilling duration - parameter r7 establishes the work set-point during blast chilling. To display the cabinet temperature, press and release the BLAST CHILLING, DEEP FREEZING or the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 15 s. If the temperature detected by the needle probe reaches the blast chilling end temperature within the maximum blast chilling duration, it means that blast chilling has been completed successfully, the device will automatically pass to storage and the buzzer will be activated for the period of time established with parameter AA. Press and release a key to silence the buzzer. During storage, the display shows the temperature detected by the cabinet and the LED is on. Parameter r10 establishes the work set-point during storage. If the temperature detected by the needle probe does not reach the blast chilling end temperature within the maximum blast chilling duration, blast chilling will not be completed successfully but will continue, the LED will flash and the buzzer will be activated. Press and release a key to restore normal display and to silence the buzzer. To display the cabinet temperature, press and release the BLAST CHILLING key; to restore the normal display, press and release the BLAST CHILLING key again or do not operate for 15 s. When the temperature detected by the needle probe reaches the blast chilling end temperature, the device automatically passes to storage in the same way as illustrated previously. 6.3 Hard blast chilling and storage The temperature-controlled hard blast chilling and storage cycle is divided into the following three phases: - blast chilling hard phase - blast chilling - storage On conclusion of a phase, the device passes automatically to the next. Operate as indicated to start the cycle: 1. Make sure the device is in the "on" status. 2. Make sure that the keyboard is not locked and that no procedure is in progress. 3. Press and release the BLAST CHILLING key: the LED and the LED will flash. If parameter r21 has value 1, press and release the BLAST CHILLING key to start the cycle with timed-control: the LED and the LED will flash and the LED will switch off (press and release the BLAST CHILLING key again to start the cycle with temperature-control). page 19 of 60

20 4. Press and release the HARD/SOFT key: the HARD LED will flash. 5.1 If parameter r19 is set at 0, the display will show the work set-point during blast chilling; this value can also be set via parameter r7. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled blast chilling; this value can also be set via parameter r If parameter r19 is set at 1, the display will show the blast chilling end temperature; this value can also be set via parameter r3. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled blast chilling; this value can also be set via parameter r Press and release the UP or DOWN key within 15 s to modify the parameter value: 6. Press and release the START/STOP key: the LED and the HARD LED will remain permanently on and the test to verify the correct insertion of the needle probe will be started; see paragraph 6.7 " Test for verification of the correct insertion of the needle probe". If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, also the will remain permanently on and the cycle will be started with timed-control. 6.1 If the test is completed successfully, the cycle will be started. The maximum blast chilling duration count is started on condition that the temperature detected by the needle probe is below that established with parameter r If the test is not completed successfully, the cycle will be started with timed-control. During the hard blast chilling phase, the display shows the residual time of the blast chilling duration and the LED is on. To modify the residual time, operate as indicated: Press and release the UP or DOWN key again to modify the time value: the display will flash Do not operate for 4 s: the display will stop flashing and remain on permanently. The successive parameters establish the following values: - parameter r9 establishes the work set-point during the hard blast chilling phase - parameter r14 establishes hard blast chilling phase duration. During blast chilling, the display shows the residual time of the blast chilling duration and the LED is on. The successive parameters establish the following values: - parameter r1 establishes blast chilling duration - parameter r7 establishes the work set-point during blast chilling. Operate as indicated to stop the cycle: 7. Hold the START/STOP key down. During hard blast chilling, the display shows the temperature detected by the needle probe and the LED is on. The successive parameters establish the following values: - parameter r5 establishes the maximum blast chilling duration - parameter r9 establishes the work set-point during the blast chilling hard phase - parameter r13 establishes blast chilling hard phase end temperature. To display the cabinet temperature, press and release the BLAST CHILLING, DEEP FREEZING or the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 15 s. When the temperature detected by the needle probe reaches the hard blast chilling phase end temperature, the device automatically passes to blast chilling mode. During blast chilling, the display shows the temperature detected by the needle probe and the LED is on. The successive parameters establish the following values: - parameter r3 establishes the blast chilling end temperature - parameter r5 establishes the maximum blast chilling duration - parameter r7 establishes the work set-point during blast chilling. page 20 of 60

21 To display the cabinet temperature, press and release the BLAST CHILLING key; to restore the normal display, press and release the BLAST CHILLING key again or do not operate for 15 s. If the temperature detected by the needle probe reaches the blast chilling end temperature within the maximum blast chilling duration, it means that blast chilling has been completed successfully, the device will automatically pass to storage and the buzzer will be activated for the period of time established with parameter AA. Press and release a key to silence the buzzer. During storage, the display shows the temperature detected by the cabinet and the LED is on. Parameter r10 establishes the work set-point during storage. If the temperature detected by the needle probe does not reach the blast chilling end temperature within the maximum blast chilling duration, blast chilling will not be completed successfully but will continue, the LED will flash and the buzzer will be activated. Press and release a key to restore normal display and to silence the buzzer. To display the cabinet temperature, press and release the BLAST CHILLING key; to restore the normal display, press and release the BLAST CHILLING key again or do not operate for 15 s. When the temperature detected by the needle probe reaches the blast chilling end temperature, the device automatically passes to storage in the same way as illustrated previously. 6.4 Deep freezing and storage The temperature-controlled deep freezing and storage cycle is divided into the following two phases: - deep freezing - storage On conclusion of a phase, the device passes automatically to the next. Operate as indicated to start the cycle: 1. Make sure the device is in the "on" status. 2. Make sure that the keyboard is not locked and that no procedure is in progress. 3. Press and release the DEEP FREEZING key: the LED, the LED, the HARD LED and the LED will flash. If parameter r21 has value 1, press and release the DEEP FREEZING key to start the cycle with timed-control: the LED, the LED, the HARD LED and the LED will flash and the LED will switch off (press and release the DEEP FREEZING key again to start the cycle with temperature-control). 4.1 If parameter r19 is set at 0, the display will show the work set-point during deep freezing; this value can also be set via parameter r8. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled deep freezing; this value can also be set via parameter r If parameter r19 is set at 1, the display will show the deep freezing end temperature; this value can also be set via parameter r4. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled deep freezing; this value can also be set via parameter r Press and release the UP or DOWN key within 15 s to modify the parameter value: 5. Press and release the START/STOP key: the LED, the LED and the HARD LED will remain permanently on and the test to verify the correct insertion of the needle probe will be started; see paragraph 6.7 " Test for verification of the correct insertion of the needle probe". If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, also the will remain permanently on and the cycle will be started with timed-control. 5.1 If the test is completed successfully, the cycle will be started. The maximum deep freezing duration count is started on condition that the temperature detected by the needle probe is below that established with parameter r If the test is not completed successfully, the cycle will be started with timed-control. page 21 of 60

22 During deep freezing, the display shows the residual time of the deep freezing duration and the LED is on. To modify the residual time, operate as indicated: Press and release the UP or DOWN key again to modify the time value: the display will flash Do not operate for 4 s: the display will stop flashing and remain on permanently. The successive parameters establish the following values: - parameter r2 establishes deep freezing duration - parameter r8 establishes the work set-point during deep freezing. Operate as indicated to stop the cycle: 6. Hold the START/STOP key down. During deep freezing, the display shows the temperature detected by the needle probe and the LED is on. The successive parameters establish the following values: - parameter r4 establishes the deep freezing end temperature - parameter r6 establishes the maximum deep freezing duration - parameter r8 establishes the work set-point during deep freezing. To display the cabinet temperature, press and release the BLAST CHILLING, DEEP FREEZING or the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 15 s. If the temperature detected by the needle probe reaches the deep freezing end temperature within the maximum deep freezing duration, it means that deep freezing has been completed successfully, the device will automatically pass to storage and the buzzer will be activated for the period of time established with parameter AA. Press and release a key to silence the buzzer. During storage, the display shows the temperature detected by the cabinet and the LED is on. Parameter r11 establishes the work set-point during storage. If the temperature detected by the needle probe does not reach the deep freezing end temperature within the maximum deep freezing duration, deep freezing will not be completed successfully but will continue, the LED will flash and the buzzer will be activated. Press and release a key to restore normal display and to silence the buzzer. To display the cabinet temperature, press and release the DEEP FREEZING key; to restore the normal display, press and release the DEEP FREEZING key again or do not operate for 15 s. When the temperature detected by the needle probe reaches the deep freezing end temperature, the device automatically passes to storage in the same way as illustrated previously. 6.5 Soft deep freezing and storage The temperature-controlled soft deep freezing and storage cycle is divided into the following three phases: - deep freezing soft phase - deep freezing - storage On conclusion of a phase, the device passes automatically to the next. Operate as indicated to start the cycle: 1. Make sure the device is in the "on" status. 2. Make sure that the keyboard is not locked and that no procedure is in progress. 3. Press and release the DEEP FREEZING key: the LED, the LED, the HARD LED and the LED will flash. If parameter r21 has value 1, press and release the DEEP FREEZING key to start the cycle with timed-control: the LED, the LED, the HARD LED and the LED will flash and the LED will switch off (press and release the DEEP FREEZING key again to start the cycle with temperature-control). 4. Press and release the HARD/SOFT key: the HARD LED will switch off. page 22 of 60

23 5.1 If parameter r19 is set at 0, the display will show the work set-point during deep freezing; this value can also be set via parameter r8. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled deep freezing; this value can also be set via parameter r If parameter r19 is set at 1, the display will show the deep freezing end temperature; this value can also be set via parameter r4. If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, the display will show the duration of time-controlled deep freezing; this value can also be set via parameter r Press and release the UP or DOWN key within 15 s to modify the parameter value: 6. Press and release the START/STOP key: the LED and the LED will remain permanently on and the test to verify the correct insertion of the needle probe will be started; see paragraph 6.7 " Test for verification of the correct insertion of the needle probe". If parameter r21 has value 1 and it has been decided to start the cycle with timed-control, also the will remain permanently on and the cycle will be started with timed-control. 6.1 If the test is completed successfully, the cycle will be started. The maximum deep freezing duration count is started on condition that the temperature detected by the needle probe is below that established with parameter r If the test is not completed successfully, the cycle will be started with timed-control. During soft deep freezing, the display shows the residual time of the deep freezing duration and the LED is on. To modify the residual time, operate as indicated: Press and release the UP or DOWN key again to modify the time value: the display will flash Do not operate for 4 s: the display will stop flashing and remain on permanently. The successive parameters establish the following values: - parameter r8 establishes the work set-point during deep freezing - parameter r14 establishes soft deep freezing phase duration. During deep freezing, the display shows the residual time of the deep freezing duration and the LED is on. The successive parameters establish the following values: - parameter r2 establishes deep freezing duration - parameter r8 establishes the work set-point during deep freezing. Operate as indicated to stop the cycle: 7. Hold the START/STOP key down. During soft deep freezing, the display shows the temperature detected by the needle probe and the LED is on. The successive parameters establish the following values: - parameter r3 establishes deep freezing soft phase end temperature. - parameter r6 establishes the maximum deep freezing duration - parameter r7 establishes the work set-point during the deep freezing soft phase. To display the cabinet temperature, press and release the BLAST CHILLING, DEEP FREEZING or the HARD/SOFT key; to restore the normal display, press and release the same key again or do not operate for 15 s. When the temperature detected by the needle probe reaches the end temperature of the soft phase, the device automatically passes to deep freezing. During deep freezing, the display shows the temperature detected by the needle probe and the LED is on. The successive parameters establish the following values: - parameter r4 establishes the deep freezing end temperature - parameter r6 establishes the maximum deep freezing duration - parameter r8 establishes the work set-point during deep freezing page 23 of 60

24 To display the cabinet temperature, press and release the DEEP FREEZING key; to restore the normal display, press and release the DEEP FREEZING key again or do not operate for 15 s. If the temperature detected by the needle probe reaches the deep freezing end temperature within the maximum deep freezing duration, it means that deep freezing has been completed successfully, the device will automatically pass to storage and the buzzer will be activated for the period of time established with parameter AA. Press and release a key to silence the buzzer. During storage, the display shows the temperature detected by the cabinet and the LED is on. Parameter r11 establishes the work set-point during storage. If the temperature detected by the needle probe does not reach the deep freezing end temperature within the maximum deep freezing duration, deep freezing will not be completed successfully but will continue, the LED will flash and the buzzer will be activated. Press and release a key to restore normal display and to silence the buzzer. To display the cabinet temperature, press and release the DEEP FREEZING key; to restore the normal display, press and release the DEEP FREEZING key again or do not operate for 15 s. When the temperature detected by the needle probe reaches the deep freezing end temperature, the device automatically passes to storage in the same way as illustrated previously. 6.6 Pre-cooling start-up Every operating cycle can be preceded by pre-cooling. If parameter r22 has value 0, it will be allowed to start pre-cooling by hand; if parameter r22 has value 1, it will be allowed to start pre-cooling both automatically and by hand. To start pre-cooling automatically, pass from the "stand-by" status to the "on" status (or switch on the device). Operate as indicated to start pre-cooling by hand: 1. Make sure the device is in the "on" status. 2. Make sure no procedures are in progress 3. Hold the BLAST CHILLING key down for 1 s: the LED will flash. Operate as indicated to cut-off pre-cooling: 4. Hold the BLAST CHILLING key for 1 s or start an operating cycle. Parameter r120 establishes the work set-point during pre-cooling. When the cabinet temperature reaches that established with parameter r12, pre-cooling continues, the LED remains on permanently and the buzzer is activated for 1 s. 6.7 Management of the test regarding correct insertion of the needle probe If the needle probe is enabled, i.e. the parameter P3 is set at 1, the temperature-controlled cycles are preceded by a test on two phases for the verification of the correct insertion of the needle probe. The second phase is only performed if the first is not completed successfully. The first phase is completed successfully if the "temperature detected by the needle probe - cabinet temperature" difference is greater than the value established with parameter r17 in at least 3 controls out of 5 (the controls are performed at 10 s intervals, consider the difference without sign). The second phase is completed successfully if the "temperature detected by the needle probe - cabinet temperature" difference is 1 C/1 F higher with respect to the previous control in at least 6 controls out of 8 (the controls are performed at time intervals corresponding to 1/8 of the time established with parameter r18; consider the difference without sign). If the test is completed successfully, the cycle will be started; if the test is not completed successfully, the LED will flash and the buzzer will be activated the time set with parameter r23. page 24 of 60

25 To start the temperature-controlled cycle, press the BLAST CHILLING key or the DEEP FREEZING key. After 1 min from the signal that the test has not been completed successfully without having operated, the cycle is started with time control. If parameter r17 is set at 0.0, the test will not be carried out (neither first nor second phase). 6.8 Switching on UV light for sterilisation cycle Operate as follows: 1. Make sure that parameter u11 is set at Make sure the device is in the "on" status and that the door is closed, i.e. the door micro switch is not active. 3. Make sure that the keyboard is not locked and that no procedure is in progress. 4. Hold the DEEP FREEZING key down for 1 s: the AUX LED will switch on. The UV light is switched on for the time period established by parameter u6; opening the door i.e. the activation of the door micro switch cause the light to switch off. 6.9 Heating the needle probe Operate as follows: 1. Make sure that parameter u11 is set at Make sure the device is in the "on" status or storage is in progress and that the door is open, i.e. the door micro switch is active. 3. Make sure that the keyboard is not locked and that no procedure is in progress. 4. Hold the DEEP FREEZING key down for 1 s: the LED flashes and the AUX LED will switch on. Output K5 is activated at maximum for the time established with parameter u6 or until the temperature detected by the needle probe reaches that established with parameter u7; closing the door, i.e. the deactivation of the door micro switch input causes heating to be cut-off. The buzzer is activated for 1 s on conclusion of heating. page 25 of 60

26 7 HACCP FUNCTION 7.1 Foreword Using the HACCP function, it is possible to memorise up to 9 events for each of the 3 HACCP alarms, after which the most recent event overwrites the oldest. The following table illustrates the information relative to the HACCP alarms, which the device can memorise. Alarm Code Critical value Date and time of occurrence Duration the maximum temperature-controlled blast chilling or deep freezing not concluded within maximum duration alarm time temperature detected by the needle probe after temperature-controlled blast chilling of deep freezing not concluded within maximum yes from 1 min to 99 h and 59 min, partial if the alarm is in progress duration maximum temperature during storage alarm AH maximum cabinet temperature during the alarm yes from 1 min to 99 h and 59 min, partial if the alarm is in progress power-cut during storage alarm PF the cabinet temperature at restore f power supply yes from 1 min to 99 h and 59 min To prevent repeated memorisation of power cut alarms ( PF code), make sure that the device is in the "stand-by" or "on" status before disconnecting the power supply. If the duration of the power cut alarm ( PF code) is such to cause a clock error ( rtc code), the device does not memorise the date or time the alarm occurred or its duration. The HACCP LED supplies information relative to the memory status of the HACCP alarms of the device; see paragraph 10.1 Signals. 7.2 Display of information relative to the HACCP alarms Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select LS. 4. Press and release the BLAST CHILLING key: the display will show the most recent alarm code, i.e. one of the codes stated in the table in paragraph 7.1 Foreword, followed by the number 1 (the higher the number that follows the alarm code, the older the alarm). To display the information relative to a HACCP alarm, operate as follows: 5. Press and release the UP or DOWN key to select an alarm code, for example AH3. 6. Press and release the BLAST CHILLING key: the HACCP LED will stop flashing and remain on permanently and the display will show, for example, the following information in succession: page 26 of 60

27 Inf. Meaning 8.0 the critical value is 8.0 C/8 F StA the display is about to show the date and time the alarm occurred y11 the alarm occurred in 2011 (continue...) n03 the alarm occurred in the month of March (continue...) d26 the alarm occurred on 26 March 2011 h16 the alarm occurred at 16:00 (continue...) n30 the alarm occurred at 16:30 dur the display is about to show the duration of the alarm h01 the alarm had duration of 1 h (continue...) n15 the alarm had duration of 1 h and 15 minutes AH3 the alarm code selected the displays each piece of information for 1 s. Operate as follows to abandon the succession of information: 7. Press and release the START/STOP key: the display will show the alarm code selected again. Operate as follows to exit the procedure: 8. Abandon the succession of information. 9. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The display" or do not operate for 60 s. 7.3 Deleting the information relative to the HACCP alarms Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select rls. 4. Press and release the BLAST CHILLING key: the display will show 0 5. Press and release the UP or DOWN key within 15 s to set Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show flashing for 4 s and the HACCP LED will switch off, after which the device will automatically exit the procedure and the display will show the magnitude indicated in paragraph 5.3 The display. If the device has not memorised any information relative to the HACC alarms, the rls label will not be displayed. page 27 of 60

28 8 COMPRESSOR OPERATING HOURS COUNT 8.1 Display of compressor operating hours Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select CH. 4. Press and release the BLAST CHILLING key: the display will show the compressor operating hours. Operate as follows to exit the procedure: 5. Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show Pb2 again. 6. Press and release the UP or DOWN key until the display shows the magnitude indicated in paragraph 5.3 "The display" or do not operate for 60 s. 8.2 Deleting the compressor operating hours Operate as follows: 1. Make sure that the keyboard is not locked and that no procedure is in progress. 2. Hold the DOWN key down for 1 s: the display will show the first label available. 3. Press and release the UP or DOWN key to select rch. 4. Press and release the BLAST CHILLING key: the display will show 0 5. Press and release the UP or DOWN key within 15 s to set Press and release the BLAST CHILLING key or do not operate for 15 s: the display will show flashing for 4 s and the HACCP LED will switch off, after which the device will automatically exit the procedure and the display will show the magnitude indicated in paragraph 5.3 The display. page 28 of 60