Snowflake SBU15HL Service Manual

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SNOWFLAKE SBU 15 / 20 / 40

Service manual

765042231 Rev.001

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Page 1 SNOWFLAKE SBU 15 / 20 / 40 Service manual 765042231 Rev.001...
Page 2: Table Of Contents
INDEX GENERAL INSTRUCTIONS ON DELIVERY ............... 4 GENERAL WARNINGS .......................... 4 LIST OF REGUALATION REFERENCES ...................... 4 TRANSPORTATION AND HANDLING ...................... 4 UNPACKING .............................. 5 GENERAL SAFETY WARNINGS ........................ 5 INSTALLATION ...................... 6 PLATE DATA .............................. 6 MAX ROOM TEMPERATURE ........................ 6 POSITIONING .............................. 7 DIMENSIONS .................................. 8 TECHNICAL DATA ................................ 9 WIRING .............................. 1 0 CONDENSATE DRAIN ...
Page 3 MAINTENANCE ...................... 29 MAINTENANCE AND CLEANING ......................... 2 9 CLEANING THE CABINET .............................. 29 CLEANING THE AIR CONDENSER ............................ 30 STAINLESS‐STEEL MAINTENANCE ........................... 30 DISCONTINUED USE ............................... 31 EXTRAORDINARY MAINTENANCE ...................... 3 1 MAINTENANCE OF PANEL BOARD .......................... 31 CONDENSING SYSTEM MAINTENANCE .......................... 32 CHANGING DOOR HINGE SIDE SBU 15/20 ........................ 33 CHANGING DOOR HINGE SIDE SBU 40 ........................... 34 ENERGY CONSUMPTION CHART ........................ 3 5 WIRING DIAGRAM PLATE .......................... 3 6 EC declaration of conformity ........................ ...
Page 4: General Instructions On Delivery
GENERAL INSTRUCTIONS ON DELIVERY GENERAL WARNINGS We assure you have made the best choice in purchasing our products and hope you will be fully satisfied with our their performance. To this purpose, we recommend you strictly comply with the instructions and regulations contained in this handbook..
Page 5: Unpacking
UNPACKING Installation must be carried out by authorised and specialised personnel. After removing the packaging, ensure the integrity of the equipment and verify that all the parts or components are present and that the characteristics and state correspond to the specifications of the your order. If not, please inform the retailer immediately.
Page 6: Installation
INSTALLATION PLATE DATA Make sure the technical wiring specifications comply with the ratings (i.e., V, kW, Hz, no. phases and mains power). Please quote the product's serial number (shown on the rating plate) on any enquiry to the Manufacturer. List of rates shown on the rating plate: F) Fuse current 1) Model G) Coolant type...
Page 7: Positioning
POSITIONING The appliance must be installed and tested in full compliance with accident-prevention regulations contained in national law and current guidelines. Installers are to comply with any current local regulations.  Place the appliance onto the required working site.  Avoid locations with exposure to direct sunlight. ...
Page 8: Dimensions
DIMENSIONS SBU 15 HL SBU 20 HL SBU 20 HT SBU 40 HT 765042231 Rev.001...
Page 9: Technical Data
TECHNICAL DATA Please refer to the technical data of your own appliance (see attached sheet). Model SBU15HL SBU20HL SBU20HT SBU40HT Gross weight Net weight Dimensions 745x700x842 745x720x820 745x720x900 800x830x1850 Capacity Mass /cycle (+70°C ÷ +3°C) [kg] Mass /cycle (+70°C ÷ -18°C) [kg]...
Page 10: Wiring
WIRING An omnipolar switch is to be installed before the appliance, in compliance with the current regulations applied in the country where the appliance is installed. The electrical connection is carried out from the rear part. The electrical mains cables must be correctly sized and selected based on the installation conditions.
Page 11: Control And Safety Systems
CONTROL AND SAFETY SYSTEMS The following information concerns skilled staff only.  Door micro-switch: Prevents the appliance from working when the door is open  Overall protection fuses: Protect the whole power circuit from and short-circuits and overloads  Compressor thermal relay: Operates in case of an overload or working failures ...
Page 12: Disposal
DISPOSAL WASTE STORAGE At the end of the product life, avoid release to the environment. The doors should be removed before disposal. Temporary storage of special waste is permitted while waiting for disposal by treatment and/or final collection. Dispose of special waste in accordance with the laws in force with regard to protection of the environment in the country of the user.
Page 13: Operation
OPERATION GENERAL DESCRIPTION The blast chiller is a chilling machine capable of cooling the temperature of a freshly cooked product up to +3°C (positive chilling) and up to -18°C (negative chilling), in order to conserve it for a long period of time without altering the organoleptic characteristics.
Page 14: Machine Loading
MACHINE LOADING Do not pile up foodstuffs to be cooled. Thickness should be lower than 50mm in negative quick cooling and lower than 80mm in positive quick cooling. 0.5 - 2 cm. Make sure air circulation is not hampered between food trays. The grid-holding frame (included in those models which include trolleys) is to be located at the center of the cabinet.
Page 15: Temperatures
TEMPERATURES Do not leave the cooked products that are to be chilled/frozen at room temperature. Avoid humidity losses, which will be detrimental to the conserved fragrance of the product. We recommend beginning the chilling/freezing programme as soon as the preparation or cooking phase has ended, being careful to insert the product into the equipment at a temperature no lower than +70°C.
Page 16: Control Panel
CONTROL PANEL The illustration shows the equipment control panel, while the list indicates the description and functionality of the individual commands. HARD CHILL FREEZE STANDBY/ON KEY With the card on standby: • hold the button down for 1 sec to switch the tab page on With the card on stop and the cycle selected: •...
Page 17 POSITIVE QUICK COOLING LED It is on during positive blast chilling and blinking during selection NEGATIVE QUICK COOLING LED It is on during negative blast chilling and blinking during selection HARD QUICK COOLING LED It is on during hard chilling, blinking during selection, and on when the HARD function is not active CORE PROBE LED...
Page 18: Programme
PROGRAMME  CORE PROBE POSITIVE SOFT QUICK COOLING CYCLE: cycle suitable for cooling foodstuffs with thickness lower than 4[cm] using a room temperature of about 0[°C]. The cycle is controlled by the core probe.  CORE PROBE POSITIVE HARD QUICK COOLING CYCLE: cycle suitable for cooling foodstuffs with thickness exceeding 4[cm] using a room temperature ranging from -30[°C] to -5[°C].
Page 19: Pre-Cooling Cycle
PRE-COOLING CYCLE It is advisable to run a cooling cycle prior to selecting any cooling cycle. Press for 1 sec to run the pre-cooling cycle CHILL CHILL icon blinks The pre-cooling cycle continues once the temperature of -25 °C is reached in the chamber, the remains steady, and the buzzer is activated for 1 sec.
Page 20: Core Probe Negative Soft Quick Cooling Cycle
Press the key to start the cycle icons remain steady: the test is run to verify the insertion of the core probe The cycle is run when the test is completed successfully; otherwise, a time- controlled positive hard chilling cycle will start. The icons remain on CORE PROBE NEGATIVE SOFT QUICK COOLING CYCLE WARNING: insert the needle probe correctly to run a temperature-controlled cycle.
Page 21: Time-Controlled Positive Soft Quick Cooling Cycle
Press the key to start the cycle icons remain steady: the test is run to verify the insertion of the core probe The cycle is run when the test is completed successfully; otherwise, a time- controlled negative soft chilling cycle will start. The , and icons remain on...
Page 22: Time-Controlled Negative Soft Quick Cooling Cycle
As the needle probe is not inserted, the test is not completed successfully and the time-controlled cycle is launched HARD icons remain steady The display shows the remaining time of the cycle Press to change the value Use the keys to change the value TIME-CONTROLLED NEGATIVE SOFT QUICK COOLING CYCLE WARNING: Do not insert the needle probe to run a time-controlled cycle.
Page 23: Defrosting
As the needle probe is not inserted, the test is not completed successfully and the time-controlled cycle is launched icons remain steady The display shows the remaining time of the cycle Press to change the value Use the keys to change the value DEFROSTING Press for 4 seconds to run the defrosting cycle...
Page 24: Changing Parameters
CHANGING PARAMETERS ATTENZIONE: nel caso di utilizzo in utenza di questa funzione, contattare il costruttore. Press the keys for 4 seconds to gain access to the mode for programming parameters The display shows “PA” Press the key to gain access to service parameters CHILL CHILL The display shows the value “0”...
Page 25: Alarms And Fault Analysis
ALARMS AND FAULT ANALYSIS If the fault is not corrected by following the above instructions ask for skilled assistance and avoid carrying out any other operations, especially on the electricals. When informing the servicing company of the fault, state 1 and 5 numbers. SIGNALS MEANING Positive quick cooling led...
Page 26: Indications
Defrost LED if it is lit, the defrost will be running if it flashes, the dripping will be running Pre-cooling LED if it is lit, the pre-cooling process has ended and the blast chiller is ready for inserting the food stuff if it flashes, the pre-cooling process is in progress but the blast chiller is not yet ready for inserting the food stuff...
Page 27: Alarms
ALARMS CODE MEANING Lower temperature alarm • This alarm code will be displayed if the cabinet temperature does stay more than 10K below the storage set temperature for more than 15 minutes Remedies: • check the cabinet temperature • look at parameters A1 and A2 Effects: •...
Page 28: Error Codes (Service)
ERROR CODES (SERVICE) CODE MEANING Cabinet probe error Remedies: • look at parameter P0 • check the integrity of the probe • check the connection instrument-probe • check the cabinet temperature Effects: • equipment in “standby”; no cycle can be selected or started •...
Page 29: Maintenance
MAINTENANCE MAINTENANCE AND CLEANING CLEANING THE CABINET Clean inside the cooling cabinet daily. Both the cabinet and all the internal components have been designed and shaped to allow washing and cleaning all parts easily. Before cleaning, defrost the appliance and remove the internal drain. Disconnect the master switch.
Page 30: Cleaning The Air Condenser
Hand-wash the probe using lukewarm water and a mild detergent or products with biodegradability higher than 90%. Rinse with water and sanitary solution. Do not use detergents containing solvents (such as trichloroethylene, etc) or abrasive powders ATTENTION: do not use hot water to wash the probe. CLEANING THE AIR CONDENSER The air condenser should be kept clean to ensure the appliance's performance and efficiency, as air should freely circulate inside the appliance.
Page 31: Discontinued Use
DISCONTINUED USE Should the machine be disconnected over long periods, follow the instructions below to maintain the appliance in good condition: Turn the mains switch OFF. Disconnect the plug. Empty the appliance and clean it in accordance with the instructions given in the chapter "CLEANING".
Page 32: Condensing System Maintenance
Remove the electrical panel locking screw. Move the electrical panel box along the slide. Mod. …101L Remove the closing panel screws. Unhook the dashboard, pulling it forward. Remove the closing panel. CONDENSING SYSTEM MAINTENANCE Mod. …31… - …51… - …101… To access the condensing system, remove the rear protective grille, undoing the screws.
Page 33: Changing Door Hinge Side Sbu 15/20
CHANGING DOOR HINGE SIDE SBU 15/20 To unhook the front guard, pull it towards you. Remove the screw securing the plan and the screws fastening the top bracket “A” to the door. Remove the door and the top bracket “A”. Remove the brackets "B"...
Page 34: Changing Door Hinge Side Sbu 40
CHANGING DOOR HINGE SIDE SBU 40 Remove the protection panel at the upper part of the ‐ appliance. To unhook the front guard, pull it towards you. ‐ Remove the screw under ‐ the dashboard. Unhook the dashboard, ‐ pulling it forward. Remove the two fixing screws of the bracket “A”...
Page 35: Energy Consumption Chart
ENERGY CONSUMPTION CHART Energy Consumption Chart SBU 15 H SBU 20 HL SBU 20 HT SBU 40 HT Chilled full load capacity [kg] 15 20 20 42 Cooling temperature [°C] +65 ‐ +10 Time cycle ( chilling ) [min] 120 Energy consumption for chilling [kWh/kg] 0,124 0,089 0,089 0,137 Frozen full load capacity [kg] 8 12 12 25 Freezing temperature [°C] +65 ‐ ‐18 Time cycle ( freezing ) [min] 270 Energy consumption for freezing [kWh/kg] 0,492 0,313 0,313 0,413 Refrigerant name R404A ...
Page 36: Wiring Diagram Plate
WIRING DIAGRAM PLATE SBU 15 N° DESCRIPTION N° DESCRIPTION COMPRESSOR ELECTRONIC DATA CARD LCD CONDENSER FAN FUSE-HOLDER WITH UNIPOLAR FUSE THERMOSTATED CONDENSER FAN ELECTROVALVE GENERAL TERMINAL BOARD MAGNETIC MICRO-SVWITCH GENERAL TERMINAL BOARD COMPARTMENT PROBE GENERAL TERMINAL BOARD EVAP./DEFROST PROBE EVAPORATOR FUN NEEDLE CORE PROBE DOOR ANTICONDENSING RESISTOR MULTIPOINT NEEDLE CORE PROBE...
Page 37 SBU 20 N° DESCRIPTION N° DESCRIPTION COMPRESSOR ELECTRONIC DATA CARD LCD CONDENSER FAN FUSE-HOLDER WITH UNIPOLAR FUSE THERMOSTATED CONDENSER FAN ELECTROVALVE GENERAL TERMINAL BOARD MAGNETIC MICRO-SVWITCH GENERAL TERMINAL BOARD COMPARTMENT PROBE GENERAL TERMINAL BOARD EVAP./DEFROST PROBE EVAPORATOR FUN NEEDLE CORE PROBE DOOR ANTICONDENSING RESISTOR MULTIPOINT NEEDLE CORE PROBE DEFROST RESISTANCE...
Page 38 SBU 40 N° DESCRIPTION N° DESCRIPTION COMPRESSOR ELECTRONIC DATA CARD LCD CONDENSER FAN FUSE-HOLDER WITH UNIPOLAR FUSE THERMOSTATED CONDENSER FAN ELECTROVALVE GENERAL TERMINAL BOARD MAGNETIC MICRO-SVWITCH GENERAL TERMINAL BOARD COMPARTMENT PROBE GENERAL TERMINAL BOARD EVAP./DEFROST PROBE EVAPORATOR FUN NEEDLE CORE PROBE DOOR ANTICONDENSING RESISTOR MULTIPOINT NEEDLE CORE PROBE DEFROST RESISTANCE...
Page 39: Ec Declaration Of Conformity
EC declaration of conformity 765042231 Rev.001...
Page 40: Configuration
CONFIGURATION Setting the real date and time Operate as follows: Make sure that the keyboard is not locked and that no procedure is in progress. Hold the DOWN key for 1 s: the display will show the first label available. Press and release the UP or DOWN key to select “rtc”.
Page 41: List Of Configuration Parameters
Operate as follows to exit the procedure: Hold the UP and DOWN key for 4 s or do not operate for 60 s. The display will show the magnitude indicated in paragraph 5.3 "The display". Cut the device power supply off after setting the configuration parameters. Restoring the factory settings Operate as follows: Make sure no procedures are in progress...
Page 42 EVX803..02 EVX803..01 Par. Min. Max. Unit Analogue inputs SBU 15 SBU 20/40 -25.0 25.0 °C/°F (1) cabinet probe offset -25.0 25.0 °C/°F (1) needle probe offset -25.0 25.0 °C/°F (1) evaporator probe offset -25.0 25.0 °C/°F (1) condenser probe offset probe type - - - - = PTC...
Page 43 temperature-controlled blast chilling end time temperature; also end temperature of -50.0 99.0 °C/°F (1) temperature-controlled soft deep freezing phase (temperature detected by the needle probe); also see parameter r5 temperature-controlled deep freezing end -50.0 99.0 °C/°F (1) -18.0 -18.0 temperature (temperature detected by the needle probe);...
Page 44 duration of the time-controlled hard blast chilling phase (intended as a percentage of the value established with parameter r1); also duration of the time-controlled soft deep freezing phase (intended as a percentage of the value established with parameter r2) temperature below which the count of the maximum temperature-controlled blast...
Page 45 memorisation of the quick modification value during the "On" status before starting the operating cycle = no (on start-up of the successive same cycle, the values established with parameters r7 and r3 or those - - - - establishes with r4 and r8 will be re- proposed) = yes (on start-up of the successive same...
Page 46 compressor switch-on minimum duration duration of compressor switch-off during the cabinet probe error (“Pr1” code) that occurs during storage; see also parameter C5 duration of compressor switch-on during the cabinet probe error (“Pr1” code) that occurs during post blast chilling storage; also see parameter C4 condenser temperature above which the 199.0...
Page 47 type of defrosting = electrical (the compressor will be switched off during defrosting, the defrosting output will be activated evaporator will switched off) = hot gas (the compressor will be switched on during defrosting, the defrosting output will be activated evaporator will switched off)
Page 48 dripping duration (the compressor and the evaporator fan remain off during dripping defrosting output will deactivated) minimum duration of compressor switch-on on activation of defrosting so these can be activated (only if parameter d1 is set at 1) duration of pre-dripping (only if parameter compressor evaporator fan will be off during pre-dripping defrosting...
Page 49 maximum temperature alarm delay (“AH” code) from the conclusion of evaporator fan stop and storage start-up duration of buzzer activation on conclusion of blast chilling and deep freezing 15,0 °C/°F (1) parameters A1 and A4 differential EVX803..02 EVX803..01 Par. Min. Max.
Page 50 condenser temperature above which the condenser fan is switched on (intended as 99.0 °C/°F (1) 20.0 20.0 “F11 + differential and on condition that the compressor is on); also see parameter F12 (4) (12) (13) condenser switch-off delay from compressor switch-off evaporator fan delay from door closure, i.e.
Page 51 effect caused by opening the door, i.e. by activation of the door micro switch (14) = no effect = the compressor and the evaporator fan will be off and the cabinet light will be on. On expiry of the time established with parameter i2, the display will show the flashing “id”...
Page 52 high pressure alarm signalling delay (“HP” code) -1 = the alarm will not be signalled EVX803..02 EVX803..01 Par. Min. Max. Unit Digital outputs SBU 15 SBU 20/40 utility managed by the output K4 (16) = door resistances this case, parameter will assume - - - -...
Page 53 baud rate = 2,400 baud - - - - = 4,800 baud = 9,600 baud = 19,200 baud Parity = none - - - - = odd = even Notes: the unit of measurement depends on parameter P2 appropriately set the parameters relative to the regulators after modification of parameter P2 the time established with the parameter is counted also during the "on"...

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