electronic cuber model ec 106
Contents
1. 8 ADJUSTABLE FOOT 425 5 838 2 a 7 Dimensions HEIGHT without legs 780 mm HEIGHT with legs 860 E WIDTH 1250 mm DEPTH 620 mm t 66 WEIGHT 115 Kgs EC 206 CUBER machine specifications Model Cond unit Finish Comp HP RUM ann EC 5 nee 4 Stainless steel 1 2 50 Kg 4 Basic electr Amps pow Watts Nr of wires Amps fuse 20 8 230 50 1 4 7 19 950 173 3 x 1 5 mm 16 Cubes per harvest 72 large 102 medium 198 small A 15 C water temperature 11 SPECIFICATIONS ELECTRONIC CUBER MODEL EC 226 Important operating requirements MIN MAX Air temperature 10 C 40 Water temperature 5 C 35 Water pressure 1 bar 5 bar Electr voltage variations from voltage rating specified on nameplate 10 10 It AIR COOLED MODELS WATER COOLED MODELS Kg C 148 152 144 4 NT 10 140 21 136 144 2 g 132 amp 140 T 128 5 124 32 136 120 132 a O ne 112 128 Q 15 z 9 2 gw 5 104 t 100 2 96 116 92 88 112 84 108 32 27 21 15 10 C 32 27 21 15 10 C WATER TEMPERATURE WAT2. HARVEST Water filling portion Electrical components Loads ON OFF Fan Motor Air cooled only and TRIAC Y Hot Gas Water Inlet Water Drain valve Not on AC 106 P C Board Relay 1 amp 2 Coil P C Board Relay Coil Water P C Board Timer Electronic Controls amp Sensors ON OFF Evaporator Sensor Condenser Level Control OPERATING CHARACTERISTICS AC 106 126 176 Freeze Cycle Average Discharge Pressure A C Average Discharge Pressure W C 10 5 9 5 bar 150 135 psig Suction Pressure End Freeze Cycle 9 5 8 5 bar 130 110 psig 0 0 1 bar 0 1 psig AC 206 226 Freeze Cycle Average Discharge Pressure A C Average Discharge Pressure W C Suction Pressure End Freeze Cycle 15 17 bars 220 245 psig 17 bars 245 psig 1 7 bar 24 psig 27 PWD SYSTEM COMPONENTS The components of the Pump Out Water Drain System are Sealed water tank PC Board 8 Sensor Sealed Water Pump Check Valve OPERATION All water coming from the overflow and from the melted ice is collected inside the Sealed Water Reservoir
3. Condenser Ice Level Control TIMED FREEZE Electrical components Loads ON OFF Fan Motor Air cooled only and TRIAC Hot Gas Valve Water Inlet Valve Water Drain Valve Not on 106 P C Board Relay 1 Coil P C Board Relay 2 amp 3 Coil Water Pump 2 AUS Electronic Controls amp Sensors ON OFF Evaporator Sensor Condenser Sensor Ice Level Control Page 26 HARVEST Drain portion first 15 30 sec Electrical components Loads ON OFF 4408 400 Fan Motor Air cooled only and TRIAC Hot Gas Valve Water Inlet Valve Water Drain valve Not on AC 106 P C Board Relay 1 amp 2 Coil P C Board Relay 3 Water Timer eon ues Electronic Controls amp Sensors ON OFF Evaporator 9 Condenser Sensor Level Control
4. 15 min 13 ON i 7 13 min M CONDENSER AIR FILTER Air cooled version Located in front of the air cooled condenser can be removed by withdrawing itthrough the opening of the front panel for cleaning or replacing A lower plastic guide installed inside the unit is for the correct sliding and location of the air ilter N WATER SPRAY SYSTEM Through its nozzles the water pumped is sprayed in each individual cup to be frozen into ice It consists of one spray tube wheve are located several spray nozzles O WATER PUMP 2 PCS ECS 126 176 The water pump operates continually throughout the freezing cycle and on the first 15 or 30 seconds of the defrost cycle so to such the remaining water from the sump tank reach in mineral salts and drain it out During the freezing cycle the pump primes the water from the sump to the spray system and through the spray nozzles sprays it into the inverted cup molds to be frozen into crystal clear ice cubes It is recommended that the pump motor bearings be checked at least every six months P WATER INLET SOLENOID VALVE 3 4 MALE FITTING The water inlet solenoid valve is activated by the micro processor of the P C BOARD during the first 5 minutes of water filling phase as well as during the defrost cycle When energized it allows ametered amount of incoming water to flow over the evaporator cavity to assist the hot gas in defrosti
5. WATER IN VALVE ELECTRONIC CARD 17 completion of the water filling phase 5 minutes the unit passes automatically into the freezing cycle with the start up of COMPRESSOR WATER PUMP FAN MOTOR in air cooled version controlled by the condensing temperature sensor located within the condenser fins Fig 2 OPERATIONAL CHECKS D Install if required the refrigerant service gauges on both the high side and low side Scraeder valves to check the compressor head and suction pressures NOTE On air cooled models the condenser temperature sensor which is located within the condenser fins keep the head condensing pressure between 8 5 and 9 5 bar 110130 psig on model 106 EC 126 and EC 176 and between 15 17 bar 220 245 psi on EC 206 and EC 226 Incase of air condenser filter clogged such to prevent the proper flow of the cooling air or in case the fan motor is out of operation or shortage of water in the water cooled condenser the condenser temperature rises and when it reaches 70 C 160 F for air cooled version or 60 C 140 F for water cooled version the condenser temperature sensor shuts off the ice maker with the consequent light up of the RED WARNING LED Fig 3 as well as the Red Alarm Light ON Steady After having diagnosed the reason of the rise of temperature and removed its cause it is necessary to Switch OFF wait few seconds and Switch
6. ADJUSTABLE FOOT un CORD SET J 201 20 mm 75 6 12 16 OD OVERFLOW DRAIN 76 455 75 6 266 iss 3 4 GAS WATER INLET 306 scs 42 1 61 3 476 5 WATER INLET WATER COOLED UNIT ONLY 350 3 4 GAS 3 4 GAS WATER DRAIN WATER COOLED UNIT ONLY 530 07 8 Dimensions HEIGHT without legs 850 mm HEIGHT with legs 970 WIDTH 530 mm DEPTH 600 mm WEIGHT 54 Kgs 400 66 053 0 sna EC 106 CUBER machine specifications Model Cond unit Finish Comp HP UM EC 106 AS 6 Air 136 EC 106 WS 6 Water Stainless steel 3 8 23 Kg 550 Start Electric power cons Basic electr Amps Amps Watts Kwh per 24 Hr Nr of wires Amps fuse 10 3 230 50 1 3 3 18 550 94 3 1 5 2 10 Cubes harvest 32 medium A 15 C water temperature 5 making capacity ICE PRODUCED PER 24 HRS Kg 75 SPECIFICATIONS ELECTRONIC CUBER MODEL EC 126 AIR COOLED MODELS C 10 21 32 38 32 27 21 15 WATER TEMPERATURE 10 C AMBIENT TEMPERATURE ICE PRODUCED PER 24 HRS Kg 75 Important operating requirements MIN Air temperature 10 C Water temperature 5 C Water pressure
7. GENERAL INFORMATION AND INSTALLATION A INTRODUCTION This manual provides the specifications and the step by step procedures for the installation start up and operation maintenance and cleaning for the SCOTSMAN EC series icemakers These Cubers are quality designed engineered and manufactured Their ice making systems are thoroughly tested providing the utmost in flexibility to fit the needs of a particular user These icemakers have been engineered to our own rigid safety and performance standards NOTE retain the safety and performance built into this icemaker it is important that installation and maintenance be conducted in the manner outlined in this manual B UNPACKING AND INSPECTION 1 Callyour authorized SCOTSMAN Distributor or Dealer for proper installation 2 Visually inspect the exterior of the packing and skid Any severe damage noted should be reported to the delivering carrier and a concealed damage claim form filled in subjet to inspection of the contents with the carrier s representative present 3 Cutandremove the plastic strip securing the carton box to the skid b Cutopen the top of the carton and remove the polystyre protection sheet c Pull out the polystyre posts from the corners and then remove the carton 4 Remove the front panel of the unit and inspect for any concealed damage Notify carrier of your claim for the concealed damage as steted in step 2 above
8. Scotsman SERVICE MANUAL EC 106 EC 126 EC 176 EC 206 EC 226 Electronic cubers with storage New PC Board version SCOTSMAN EUROPE FRIMONT SPA Via Puccini 22 20010 Pogliano M se Milano Italy Te 1 02 93960 1 d t Se Tele 39 02 93550500 5 C Phon es 02 23060350 n 439 02 93540449 80 900 Con 008 MS 1000 90 REV 02 2010 START REFR CHARGE SUCT PRESS DISCHARGE Amps WATTS KWH 24HRS R134a END FREEZE a 106A 8 5 9 5 bar 9 5 bar See bar 106 W 126A 8 5 9 5 bar 126 0 0 1 bar 9 bar 176A 8 5 9 5 bar 176 W 0 0 1 bar DIP SWITCH FACTORY SETTING COMBINATIONS PER MODEL AND VERSION COMBINAISON DES COMMUTATEURS NUMERIQUES DU DIP SWITCH POUR MODELES ET VERSIONS REGOLAZIONE TASTI DIP SWITCH PER MODELLO E VERSIONE FREEZING CYCLE CICLO CONGELAMENTO DIP SWITCH 1 2 3 4 A ECM 106 DEFROST CYCLE DEFROST CYCLE ADD TIME CYCLE DE CONGELATION CYCLE DE D MOULAGE CYCLE DE D MOULAGE TEMPS ADDIT 15 30 CICLO SBRINAMENTO TEMPI AGG CICLO SBRINAMENTO AIR WATER AIR EAU ARIA ACQUA 10 A ECM 106 W A ECL 106 A ECL 106 W 5 126 176 A A ECS 126 176 W 126 126 W A ECL 126 A ECL 126 W A ECM 176 A 176 W 176 A EC
9. As soon as the water into the Sealed Water Reservoir reaches the maximum level the two metal pins close the electrical contact through the water transmitting a low voltage current to the PC Board The PC Board activates the Water Drain Pump for 8 seconds pumping out most of the water contained into the Sealed Water Reservoir The water can be pumped out up to 1 5 m rise HAND DISCONNECT SWITCH WATER DRAIN WATER DRAIN A Check Valve located on the water drain hose prevents the coming back of the discharged water 28 SCHEMATIC SYSTEM Drain fitting Vented tube Storage bin Water level sensors Drain out Overflow drain tube Storage bin drain tube Water tank inlet fitting 29 REFRIGERANT METERING DEVICE capillary tube REFRIGERANT CHARGE R 134 A Air cooled Water cooled 106 320gr 11 00z 250 gr 9 0 126 450gr 16 00z 300 gr 10 5 176 450 gr 16 0 oz 330 gr 12 0 oz REFRIGERANT CHARGE R 404 Air cooled Water cooled EC 206 490 gr 17 400 gr 14 EC 226 620 gr 22 450 gr 16 COMPONENTS DESCRIPTION A GREEN MASTER SWITCH PUSH BUTTON Located in the front of the machine it s used to switch ON and OFF the unit by pushing its green push button When ON its green light is ON as well B RED ALARM RE SET PUSH BUTTON Located in the front of the machine just
10. VR CALIBRATION DONE CALIBRATION FAISCEAU INFRA ROUGE CELL NIVEAU GLACE REALISE CALIBRAZIONE RAGGIO INFRAROSSO EFFETTUATA BLINKING CLIGNOTANT LAMPEGGIANTE UNIT IN CLEANING MODE OR TRIPPING OFF AFTER TEST JUMPER TEST MACHINE EN MODE DETARTRAGE OU ARRETE 5 LE TEST CAVALIER TEST FERME MACCHINA NELLA FASE LAVAGGIO 0 FERMA DOPO IL TEST PONTICELLO TEST CHIUSO CONDENSER SENSOR OUT OF ORDER SONDE CONDENSEUR HS SONDA CONDENSATORE MALFUNZIONANTE BLINKING CLIGNOTANT LAMPEGGIANTE EVAPORATOR SENSOR OUT OF ORDER SONDE EVAPORATEURS HS SONDA EVAPORATORE MALFUNZIONANTE BLINKING ALTERNATIV CLIGNOTANT ALTERNE LAMPEGGIO ALTERN I R SENSOR OUT OF ORDER SONDE INFRA ROUGE CELLULE NIVEAU GLACE HS SONDA ALL INFRAROSSO LIVELLO GHIACCIO MALFUNZIONANTE PUSH 5 DURING WATER FILLING TO MOVE THE UNIT INTO FREEZING PUSH 5 DURING FREEZING TO MOVE THE UNIT INTO DEFROST PUSH 5 DURING DEFROST TO MOVE THE UNIT INTO FREEZING PUSH 2 5 DURING WATER FILLING TO MOVE THE UNIT INTO CLEANING PUSH DURING THE 60 MIN START UP DELAY TIME TO BY PASS IT START REFR CHARGE SUCT PRESS DISCHARGE AMPS amps WATTS KWH 24HRS R404a END FREEZE PRESSURE 206 15 17 bar 1 7 206 W 17 52 1180 17 bar 15 17 bar 226 W DIP SWITCH FACTORY SETTING COMBINATIONS PER MODEL AND VERSION COMBINAISON DES COMMUTATEURS NUMERIQUES DU DIP SWITCH POUR MODELES E
11. 1 bar Electr voltage variations from voltage rating specified on nameplate 10 WATER COOLED MODELS C 10 21 32 38 32 27 21 15 10 WATER TEMPERATURE AMBIENT TEMPERATURE MAX 40 C 35 C 5 bar 10 NOTE With the unit in built in conditions the ice production is gradually reduced in respect to the levels shown in the graf up to a maximum of 10 at room temperatures higher than 32 C The daily ice making capacity is directly related to the condenser air inlet temperature water temperature conditions of the condenser air filter and age of the machine To keep your SCOTSMAN CUBER at peak performance levels periodic maintenance checks must be carried out as indicated on Maintenance and Cleaning section of this manual 6 930 m SPECIFICATIONS 120 7 ADJUSTABLE FOOT 228 920 mm 3 46 5 _381 seas WATER NLET 520 y 580 svecas 680 Car ers 25 32 OVERFLOW DRAN MIN FOR UTILITY CONNECTIONS GAS 207 16 3 4 GAS WATER OUTLET WATER COOLED ONLY GZS63 GAS WATER INLET WATER COOLED UNT ONLY Dimensions HEIGHT without legs 930 mm HEIGHT with legs 1050 mm WIDTH 680 mm D
12. 5 Check that refrigerant lines do not rub against or touch other lines or surfaces and that the fan blade moves freely 6 Check that the compressor fits snugly onto all its mounting pads 7 Remove all internal support packing and masking tape 8 Use clean damp cloth to wipe the surfaces inside the storage bin and the outside of the cabinet 9 See data plate on the rear side of the unit and check that local main voltage corresponds with the voltage specified on it CAUTION Incorrect voltage supplied to the icemaker will void your parts replacement program 10 Remove the manufacturers registration card from the inside of the User Manual and fill in all parts including Model and Serial Number taken from the data plate Forward the completed self addressed registration card to Frimont factory 11 If necessary replace the four standard legs with the taller ones supplied in the machine and adjust them to level the unit C LOCATION AND LEVELLING WARNING This Ice Cuber is designed for indoor installation only Extended periods of operation at temperatures exceeding the following limitations will constitute misuse under the terms of the SCOTSMAN Manufacturer s Limited Warranty resulting in LOSS of warranty coverage 1 Position the unit in the selected permanent location Criteria for selection of location include a Minimum room temperature 10 C 50 F and maximum room temperatur
13. AND DRAIN CONNECTIONS GENERAL When choosing the water supply for the ice cuber consideration should be given to Length of run b Water clarity and purity c Adequate water supply pressure Since water isthe mostimportant single ingredient in producting ice you cannot emphasize too much the three items listed above Low water pressure below 1 bar may cause malfunction of the ice maker unit Water containing excessive minerals will tend to produce cloudy coloured ice cubes plus scale build up on parts of the water system WATER SUPPLY Air Cooled Versions Connect the 3 4 male fitting of the solenoid water inlet valve using the flexible tube supplied to the cold water supply line with regular plumbing fitting and a shut off valve installed in an accessible position between the water supply line and the unit If water contains a high level of impurities it is advisable to consider the use an appropriate water filter or conditioner Water supply Water cooled models The water cooled versions of SCOTSMAN Ice Makers require two separate inlet water supplies one for the water sprayed for making the ice cubes and the other for the water cooled condenser Connect the 3 4 GAS male fitting of the water inlet using the flexible tubing or a 3 8 O D copper pipe to the cold water supply line with regular plumbing fitting and a shut off valve installed in an accessible position between the water supply line and the un
14. ON the unit thus to put the machine in condition to initiate anew freezing cycle The machine restarts with the usual 5 minutes water filling phase in order to provide enough water into the sump tank EVAPORATOR ELECTR TIMER TEM PERATURE SENSORS BIN lt EH WATER DRAIN VALVE 5 d WATER IN VALVE ELECTRONIC CARD 18 TEMPERATURE SENSORS BIN WATER DRAIN VALVE ome WATER IN VALVE ELECTR TIMER lt ELECTRONIC CARD E Check to see through the ice discharge interior of the inverted mold cups also make sure opening that the spray system is correctly seated thatthe plastic curtain is hanging freely and there and that the water jets uniformely reach the is not excessive water spilling through it FIG 4 EVAPORATOR CONDENSER TEM PERATURE SENSORS BIN WATER DRAIN VALVE ELECTR TIMER DATA PROCESSOR ELECTRONIC CARD 19 Theicemaking process takes place thereby with the water sprayed into the molds that gets gradually refrigerated by the heat exchange with the refrigerant flowing into the evaporator serpentine During the freezing process the evaporator temperature falls to 0 C Red Led blinking as per Fig 4 and then to 15 C Red Led ON steady as per Fig 4a When it reaches 15 C the evaporator temperature sensor supplies a low
15. and age of the machine To keep your SCOTSMAN CUBER at peak performance levels periodic maintenance checks must be carried out as indicated on Maintenance and Cleaning section of this manual 8 1000 SPECIFICATIONS 152 120 ADJUSTABLE FOOT MIN FOR UTILITY CONNECTIONS Sus 228 920 25 32 00 OVERFLOW DRAN 387 ser 3576 3 4 GAS 381 scs WATER 520 cas 207 76 3 4 GAS WATER OUTLET WATER COOLED UNIT ONLY 580 34645 Qz3 63 4 GAS WATER INLET WATER COOLED UNIT ONLY Dimensions HEIGHT without legs 1000 mm HEIGHT with legs 1120 mm WIDTH 680 mm DEPTH 600 mm WEIGHT 80 Kgs EC 176 CUBER machine specifications Model Cond unit Finish Comp HP Mao red EC 176 AS 6 Air 150 EC 176 WS 6 Water Stainless steel 3 4 48 Kg 1050 Start Electric power cons Basic electr Amps Amps Watts Kwh per 24 Hr Nr of wires Amps fuse 15 230 50 1 5 6 26 760 135 3x1 5 mm 10 Cubes per harvest 48 medium A 15 C water temperature 9 SPECIFICATIONS ELECTRONIC CUBER MODEL EC 206 Important operating requirements MI
16. are oversize size Indentation is too full probably the length of the second phase of the freezing cycle is too long To shorten such length you have to 1 Locate the DIP SWITCH on the front of the 2 Take note of the combination ofthe first four DIP SWITCH KEYS and check the corrisponding length of freezing cycle 2nd phase on Table B 3 Set the same DIP SWITCH KEYS to correspond to the next combination shown on Table B which allow a reduction of two minutes of the length of the freezing cycle 4 Observe the ice cubes in the next two harvests and eventually repeat steps 2 and 3 above until proper ice cubes size is achieved See figure SMALL IDENTATION LITTLE OR NO ICE IN CENTER OF CUBES THICK BULGE SOLID ICE 34 WIRING DIAGRAM EC 106 126 176 206 226 AIR AND WATER COOLED 230 50 60 1 The unit is shown on freezing cycle EASY FIT MODEL AIR COOLED MODEL MOSS3HdWOO IMYA QNOO YO LOW INVA 3ATVA INVA Y
17. beside the Master Switch it works in conjuction with the Cleaning Remind Board and it s activated when Consensing temperature is higher then 70 C air cooled version ON steady with machine in OFF mode Condensing temperature is higher then 60 C water cooled version ON steady with machine in OFF mode Condenser sensor out of order Blinking twice and repeat with machine in OFF mode Condenser air filter need to be cleaned ON steady with machine in ON mode Water system need to be cleaned Slow blinking with machine in ON mode On the first two cases it s possible to Re Set the operation of the machine pushing and hold the Red Alarm Re Set Button by 5 till the Red Light is OFF On the third case it s necessary first to replace the condenser sensor then push and hold for 5 the Red Re Set Button C EVAPORATOR TEMPERATURE SENSOR The evaporator temperature sensor probe located in contact with the evaporator serpentine detects the dropping ofthe evaporator temperature during the freezing cycle and signals it by supplying a current flow to the micro processor of BOARD According to the current received is energized the small Red LED of the PC Board blink or steady When steady the micro processor supplies power to the electronic timer built into the P C BOARD so thatit takes control ofthe last portion of freezing cycle The length of the timed phase is pre fixed by the setting of the keys
18. of the condenser temperature beyond the pre fixed limit changes its electrical resistance and transmits a low voltage power flow to the Micro Processor of P C BOARD which in turn energizes through a TRIAC the FAN MOTOR When the opposite situation occures i e the condenser temperature gets below the pre fixed limit the temperature sensor changes again its electrical resistance reducing therefore the current flow to the P C BOARD to cause the fan motor temporary cut off NOTE case the condenser temperature probe senses that the condenser temperatu re has rised to 70 C 160 F on air cooled versions or 60 C 140 F on water cooled versions for one of the following reasons CLOGGED CONDENSER Aircooled version INSUFFICIENT FLOW OF COOLING WATER Water cooled version FAN MOTOR OUT OF OPERATION Air cooled version AMBIENT TEMPERATURE HIGHER THEN 40 C 100 F it causes the total and immediate SHUT OFF of the machine in order to prevent the unit from operating in abnormal and dangerous conditions When the ice maker stops on account of this protective device there is a simultaneous glowing of the RED LED and RED LIGHT STEADY warning the user of the Hi Temperature situation After having eliminated the source of the condenser hi temperature to restart the machine it is necessary to switch OFF wait few seconds and switch ON again the unit The ice machine resumes its normal operation by going th
19. voltage power signal to the electronic control device P C BOARD in order to activate an electronic timer This one takes over the control of the freezing cycle up to the complete formation of the ice cubes NOTE The lenght of the entire freezing cycle is governed by the evaporator tempe rature sensor which has its probe placed in contact with the evaporator serpentine Non adjustable in combination with the electronic timer Adjustable incorporated in the P C BOARD Thetimeradjustment is factory set in consideration of the ice maker type cooling version and ice cube size Small Medium Large It is possible however to modify the timed lenght of the freezing cycle by changing the DIP SWITCH keys setting In Table B of PRINCIPLE OF OPERATION are shown the various time extensions of the freezing cycle second phase in relation with the different DIP SWITCH keys setting activated Fig 5 Theelectrical components in operation on models are COMPRESSOR WATER INLET VALVE HOT GAS VALVE WATER DRAIN VALVE and the WATER PUMP on the first 15 seconds on models EC 106 EC 126 amp EC 176 and 30 seconds on models EC 206 amp EC 226 NOTE The lenght of the defrost cycle is automatically determinated by the micro processor of the P C BOARD in relation of the time necessary for the unit to reduce the evaporator temperature from 0 C 32 F small Red LED blinking to 15 C 5 F small Red LED ON steady TIM
20. 1 2 3 and 4 of the DIP SWITCH NOTE Whenever after 15 minutes from the beginning of the freezing cycle the evaporating temperature have not yet reached the value of 0 C 32 F small Red LED OFF the P C Board switches OFF the machine with the BLINKING of WARNING RED LED D CONDENSER TEMPERATURE SENSOR The condenser temperature sensor probe located within the condenser fins air cooled version or in contact with the tube coil water cooled version detects the condenser tempe rature variations and signals them Sy Supplying current at low voltage to the P C B In the air cooled versions in relation p different current received the micro processor of the P C BOARD supplies through a TRIAC the power at high voltage to the fan motor so to cool the condenser and to reduce its temperature In case the condenser temperature rises and reaches 70 160 F air cooled models or 60 C 140 F on water cooled models the current arriving to the micro processor is such to cause an immediate andtotal stop ofthe machine operation E ICEBIN LEVEL LIGHT CONTROL The electronic ice bin level control located into the storage bin has the function to stop the operation of the ice machine only at the end of the harvest cycle whenthe light beam between the light source and the sensor is interrupted by the ice cubes stored into the bin When the light beam is interrupted the Bin Full YELLOW LED start
21. CH 7 and 8 as shown on table at page 32 The electrical components in operation during this phase are COMPRESSOR WATER INLET VALVE HOT GAS VALVE WATER DRAIN VALVE and the WATER PUMP on the first 15 seconds EC 106 EC 126 EC 176 or 30 seconds EC 206 226 only The incoming water passing through the water inlet valve and the flow control runs over the evaporator platen and then flows by gravity through the dribbler holes down into the sump reservoir Fig F The water filling the sump reservoirforces part of the surplus water from the previous freezing cycle to go out to the waste through the overflow pipe This overflow limits the level of the sump water which will be used to produce the next batch of ice cubes Meanwhile the refrigerant as hot gas discharged from the compressor flows through the hot gas valve directly into the evaporator serpentine by passing the condenser The hot gas circulating into the serpentine of the evaporator warms up the copper molds causing the defrost of the ice cubes The ice cubes released from the cups drop by gravity onto a slanted cube chute then through a curtained opening they fall into the storage bin At the end of the defrost cycle the hot gas valve the water inlet valve and the water drain valve close and the machine starts again a new freezing cycle OPERATION CONTROL SEQUENCE At the start of freezing cycle the evaporator temperature sensor contro
22. E T2 Itis possible to extend the length of the defrost cycle by changing the setting of DIP SWITCH 7 and 8 as shown on table at page 32 G After about 17 20 minutes from the begin ning of the freezing cycle in an hypothetic ambient temperature of 21 C the defrost cycle takes place with the hot gas the water inlet and the water drain valves simoultaneously H Check during the defrost cycle that the incoming water flows correctly into the sump reservoir in order to refill it and that the surplus overflows through the overflow drain tube I Checkthe texture of ice cubes just released They have to be in the right shape with a small depression of about 5 6 mm in their crown If not wait for the completion of the second cycle before performing any adjustment EVAPORATOR ELECTR TIMER TEMPERATURE SENSORS a lt 26 a BIN WATER DRAIN VALVE 5 WATER IN VALVE ELECTRONIC CARD 20 Lx EVAPORATOR o a 2 WATER DRAIN VALVE WATER IN VALVE ELECTRONIC CARD If the ice cubes are shallow and cloudy it is possible that the ice maker runs short of water during the freezing cycle second phase or the quality of the supplied water requires the use of an appropriate water filter or conditioner J As soon as the water into the Sealed Water Reservoir reaches the maximum
23. EALARRET PEND DEGIVRAGE PUSH 2 5 DURING WATER FILLING TO MOVE THE UNIT INTO CLEANING POMPA ACQUA DURANTE SBRINAMENTO PUSH DURING THE 60 MIN START UP DELAY TIME TO BY PASS IT INDICE Table of contents Specifications EC 106 Specifications EC 126 Specifications EC 176 Specifications EC 206 Specifications EC 226 GENERAL INFORMATION AND INSTALLATION Introduction Unpacking and Inspection Location and levelling Electrical connections Water supply and drain connections Final check list Installation practice OPERATING INSTRUCTIONS Start up Operational checks OPERATING PRINCIPLES How it works Freezing cycle Harvest cycle Electrical sequence Components description ADJUSTMENT REMOVAL AND REPLACEMENT PROCEDURES Adjustment of the cube size Wiring diagram EC 106 EC 126 EC 176 EC 206 EC 226 Service diagnosis MAINTENANCE AND CLEANING INSTRUCTIONS General Icemaker Clean Replace of air condenser filter Cleaning instructions of water system page Page 2 33 34 35 38 38 38 39 3 SPECIFICATIONS ELECTRONIC CUBER MODEL EC 106 AA AI A AIK A A ice making capacity ICE PRODUCED PER 24 HRS AIR COOLED MODELS 32 27 21 15 WATER TEMPERATURE C 10 21 AMBIENT TEMPERATURE PRODUCED PER 24 HRS Kg 51 49 47 45 43 4 39 37 Important operat
24. EPTH 600 mm WEIGHT 75 Kgs EC 126 CUBER machine specifications Model Cond unit Finish Comp HP 126 56 Air 190 126 WS 6 Water Stainless steel 1 2 39 Kg 750 Start Electric power cons Basic electr Amps Amps Watts Kwh per 24 Hr Nr of wires Amps fuse 14 230 50 1 4 19 600 118 3x1 5mm 10 Cubes per harvest 48 medium A 15 water temperature 7 making capacity AIR COOLED MODELS ICE PRODUCED PER 24 HRS Kg 84 m SPECIFICATIONS ELECTRONIC CUBER MODEL EC 176 27 21 15 WATER TEMPERATURE 1 0 C AMBIENT TEMPERATURE ICE PRODUCED PER 24 HRS Important operating requirements Air temperature Water temperature Water pressure Electr voltage variations from voltage rating specified on nameplate Kg 86 MIN 4 1 0 C 5 C bar 10 WATER TEMPERATURE WATER COOLED MODELS AMBIENT TEMPERATURE MAX 40 C 35 C 5 bar 10 NOTE With the unit in built in conditions the ice production is gradually reduced in respect to the levels shown in the graf up to a maximum of 10 at room temperatures higher than 32 The daily ice making capacity is directly related to the condenser air inlet temperature water temperature conditions of the condenser air filter
25. ER TEMPERATURE NOTE The daily ice making capacity is directly related to the condenser air inlet temperature water temperature conditions of the condenser air filter and age of the machine Production charts shown indicate the production of ECM models ice production of ECL and ECS models is 10 lower To keep your SCOTSMAN CUBER at peak performance levels periodic maintenance checks must be carried out as indicated on Maintenance and Cleaning section of this manual 12 SPECIFICATIONS 1006 2 2 2 o gt o 2 5 z o E ADJUSTABLE FOOT 5 d id st 1078 Dimensions HEIGHT without legs 1006 mm HEIGHT with legs 1126 mm WIDTH 1078 mm DEPTH 715 mm WEIGHT 120 Kgs oy n 71 937 T EC 226 CUBER machine specifications Model Cond unit Finish Comp HP BN Poss EC 226 AS 6 Air 330 226 WS 6 Water Stainless steel 1 70 Kg 1800 Start Electric power cons Basic electr Amps Amps Watts Kwh per 24 Hr Nr of wires Amps fuse 24 2 230 50 1 5 2 29 1180 192 3 x 1 5 mm 16 Cubes per harvest 72 large 102 medium 198 small A 15 C water temperature 13
26. F ECL 176 A OFF ON ECL 176 W OFF OFF ECS 226 A ON ON ECM 206 226 A ON ON ECM 206 226 W ON OFF ECL 206 A ON ON ECL 206 W ON OFF EVAPORATOR EVAPORATOR OVERFLOW DRAIN LINE INLET VALVE INLET VALVE EVAPORATOR OVERFLOW DRAIN LINE 24 EVAPORATOR COMPRESSOR INLET VALVE A 25 In Table B are indicated the various lengths of the timed portion of freezing cycle in relation to the different combinations ofthe DIP SWITCH KEYS In Table A are illustrated the DIP SWITCH keys combinations forthe different models and versions as they are set in the factory The electrical components in operation during the freezing cycle are COMPRESSOR FAN MOTOR in air cooled version WATER PUMP and during the second phase of freezing cycle Time mode they are joined by the ELECTRONIC TIMER The refrigerant head pressure in the course of the freezing cycle ranges between 8 5 and 9 5 bars 110 130 psig on models AC 106 AC 126 and AC 176 and between 15 17 bar 220 245 psi on AC 206 226 in the air cooled version being controlled by the temperature sensor probe located within the condenser fins On the air cooled version the condenser tempe rature sensor when senses a rising
27. Freezing cycle The length of Harvest is equal to 35 if Push Button is activated before 15 C evaporating temperature LED activation As per Harvest cycle chart if Push Button is activated after 15 C evaporating temperature LED activation Red LED inside PC Board ON steady Page 30 with ten keys of one push button of an external switches socket of input terminals for the leads of the sensor probes and input and output terminals for the leads of the ice maker electrical wires The P C BOARD is the brain of the system and it elaborates through its micro processor the signals received from the three sensors in order to control the operation of the different electrical components of the ice maker compressor water pump solenoid valves etc FREEZING CYCLE TOO COND TEMP TOO HI EVAP TEMP BIN FULL POWER LED MEANING GREEN LED ON Unit under power YELLOW BIN FULL LED ON Unit shut OFF at storage bin full YELLOW BIN FULL LED BLINKING Infrared beam break out 31 RED ALARM LED ON Too hi condensing temperature RED ALARM LED BLINKING Too hi evaporating temperature YELLOW FREEZING CYCLE ON Unit in freezing cycle mode YELLOW FREEZING LED AND RED ALARM LED ON Condenser sensor out of order YELLOW FREEZING LED AND RED ALARM LED BLINKING Evaporator sensor out of order DIP SWITCH The P C BOARD which controls the entire operation of the ice make
28. L 176 W TIMED PORTION FREEZING CYCLE TEMPS PHASE TEMPORISEE CONGELATION FASE TEMPORIZZATA CONGELAMENTO ADDITIONAL DEFROST TIME TEMPS AJOUTES TEMPI AGG SCONGELAMENTO 0 30 sec 60 sec WATER PUMP OFF DURING DEFROST POMPE A L ARRET PEND DEGIVRAGE POMPA ACQUA DURANTE SBRINAMENTO OFF OFF 069 O60 080 090 000 GOO 0001080 ooo B STATUS ON STEADY REASON WHY SIGNIFICATION SIGNIFICATO FREEZING CYCLE EN REFRIGERATION IN CONGELAMENTO BLINKING CLIGNOTANT LAMPEGGIANTE BLINKING CLIGNOTANT LAMPEGGIANTE 60 MINUTES DELAY AT START UP JUMPER J3 OUT 60 MINUTES DE RETARD AU DEMARRAGE CAVALIER J3 OUVERTE 60 MINUTI RITARDO PARTENZA CONTATTI J3 APERTI TOO HI DISCHARGE PRESSURE TEMP COUPURE HP FERMATA ALTA TEMP CONDENSAZIONE TOO HI EVAP TEMP gt 0 C AFTER 15 FROM START UP COUPURE BP gt 0 C LU PAR LA SONDE EVAP NON ATTEINTE APRES 15 FONCT TEMP EVAP gt DOPO 15 DA INIZIO CONGELAMENTO UNIT OFF AT BIN FULL CABINE PLEINE CONTENITORE PIENO BLINKING SLOW CLIGNOTANT LENT LAMPEGG LENTO BEAM CUTTED FAISCEAU INFRA ROUGE CELLULE NIVEAU GLACE INTERROMPU RAGGIO INFRAROSSO INTERROTTO BLINKING FAST CLIGNOTANT RAPIDE LAMPEGG VELOCE ON STEADY ON AFTER TRIP OFF AT BIN FULL FAISCEAU INFRA ROUGE CELLULE NIVEAU GLACE ETABLI RAGGIO INFRAROSSO RIPRISTINATO DOPO FERMATA A CONT PIENO
29. N MAX Air temperature 10 C 40 C Water temperature 5 C 35 Water pressure 1 bar 5 bar Electr voltage variations from voltage rating specified on nameplate 10 10 it AIR COOLED MODELS WATER COOLED MODELS Kg 138 136 134 132 130 p 126 5 124 5 amp S oam oc a tc 120 a Q gt a 118 gt Lu m 116 gt 114 2 2e gt 112 t 110 m a a a a gt 108 gt o lt S 106 104 102 100 98 96 32 BT gt 15 10 C WATER TEMPERATURE WATER TEMPERATURE NOTE The daily ice making capacity is directly related to the condenser air inlet temperature water temperature conditions of the condenser air filter and age of the machine Production charts shown indicate the production of ECM models ice production of ECL and ECS models is 10 lower Tokeep your SCOTSMAN CUBER at peak performance levels periodic maintenance checks must be carried out as indicated on Maintenance and Cleaning section of this manual 10 SPECIFICATIONS
30. O DOPO FERMATA A CONT PIENO ON STEADY CALIBRATION DONE CALIBRATION FAISCEAU INFRA ROUGE CELL NIVEAU GLACE REALISE CALIBRAZIONE RAGGIO INFRAROSSO EFFETTUATA BLINKING UNIT IN CLEANING MODE OR TRIPPING OFF AFTER TEST JUMPER TEST IN CLIGNOTANT MACHINE EN MODE DETARTRAGE OU ARR TE APRES LE TEST CAVALIER TEST FERM LAMPEGGIANTE MACCHINA NELLA FASE LAVAGGIO O FERMA DOPO IL TEST PONTICELLO TEST CHIUSO ON STEADY CONDENSER SENSOR OUT OF ORDER FIXE SONDE CONDENSEUR HS FISSO SONDA CONDENSATORE MALFUNZIONANTE BLINKING EVAPORATOR SENSOR OUT OF ORDER CLIGNOTANT SONDE EVAPORATEURS HS LAMPEGGIANTE SONDA EVAPORATORE MALFUNZIONANTE BLINKING ALTERNATIV I R SENSOR OUT OF ORDER CLIGNOTANT ALTERNE SONDE INFRA ROUGE CELLULE NIVEAU GLACE HS LAMPEGGIO ALTERN SONDA ALL INFRAROSSO LIVELLO GHIACCIO MALFUNZIONANTE TIMED PORTION FREEZING CYCLE TEMPS PHASE TEMPORISEE CONGELATION TEMPI FASE TEMPORIZZATA CONGELAMENTO ow orr orr 25nis ADDITIONAL DEFROST TIME TEMPS AJOUTES TEMPI AGG SCONGELAMENTO e e o e PUSH gt 5 DURING WATER FILLING TO MOVE THE UNIT INTO FREEZING PUSH gt 5 DURING FREEZING TO MOVE THE UNIT INTO DEFROST WATER PUMP OFF DURING DEFROST PUSH gt 5 DURING DEFROST MOVE THE UNIT INTO FREEZING OFF OFF POMP
31. OSNAS YOSNAS YOSNAS YOSNAS Nv4 5 W31VM LIINI YILYM LOH Tin4 NIG dWal QNOO n8 n8 2 2 z z z jg II T T T Enyi 1 Ej ovi E Ej E Pu SAA i IAA PIAA 221 s E z M 75 81 i 195 2 2 ie E 18 Ei 1 1 9072 TdS EAA Lu H 922 902 941 9 DV STAQOW AINO ng w Hehe 4 519 eo a 8g v 2 qu n v D 0 Gere 9 pide 4 emm 3 0 08 NO 3ND o 43 A e 1 z Tins 5 109 9 1 t vs 8 L 185 g 99 z MEME ES Senha 5 5 Hsnd Nouveado 9uz334 59 1495 HM N 35 SERVICE DIAGNOSIS SYMPTOM POSSIBLE CAUSE SUGGESTED CORRECTION Unit will not run No warning LEDS glows Green LED Power ON glows Bin full LED glows Red alarm LED LIGHT glows Red alarm LED blinks Freezing LED Red alarm LED glows and Red alarm Light blinks twice and repeat Freezing LED Red alarm LED bli
32. T VERSIONS REGOLAZIONE TASTI DIP SWITCH PER MODELLO E VERSIONE FREEZING CYCLE DEFROST CYCLE DEFROST CYCLE ADD TIME AIR WATER CYCLE DE CONGELATION CYCLE DE DEMOULAGE CYCLE DE DEMOULAGE TEMPS ADDIT 15 30 AIR EAU CICLO CONGELAMENTO CICLO SBRINAMENTO TEMPI AGG CICLO SBRINAMENTO ARIA ACQUA DIP SWITCH 1 2 3 4 10 5 226 A A ECM 206 226 A A ECM 206 226 W A ECL 206 A A ECL 206 W STATUS REASON WHY SIGNIFICATION SIGNIFICATO ON STEADY FREEZING CYCLE FIXE EN REFRIGERATION FISSO IN CONGELAMENTO BLINKING 60 MINUTES DELAY AT START UP JUMPER J3 OUT CLIGNOTANT 60 MINUTES DE RETARD AU DEMARRAGE CAVALIER J3 OUVERTE LAMPEGGIANTE 60 MINUTI RITARDO PARTENZA J3 ON STEADY TOO DISCHARGE PRESSURE TEMP FIXE COUPURE HP FISSO FERMATAALTA TEMP CONDENSAZIONE BLINKING TOO HI EVAP TEMP gt 0 C AFTER 15 FROM START UP CLIGNOTANT COUPURE BP gt 0 C LU PAR LA SONDE EVAP NON ATTEINTE APRES 15 FONCT LAMPEGGIANTE TEMP EVAP gt 0 C DOPO 15 DA INIZIO CONGELAMENTO ON STEADY UNIT OFF AT BIN FULL CABINE PLEINE CONTENITORE PIENO BLINKING SLOW I R BEAM CUTTED CLIGNOTANT LENT FAISCEAU INFRA ROUGE CELLULE NIVEAU GLACE INTERROMPU LAMPEGG LENTO RAGGIO INFRAROSSO INTERROTTO BLINKING FAST I R ON AFTER TRIP OFF AT BIN FULL CLIGNOTANT RAPIDE FAISCEAU INFRA ROUGE CELLULE NIVEAU GLACE ETABLI LAMPEGG VELOCE RAGGIO INFRAROSSO RIPRISTINAT
33. The change of the electric potential of the evaporator sensor with the consequent activation of the timer Time mode is signalled by the glowing up of the RED LED located in the front of the P C BOARD ATTENTION In case after 15 minutes from the beginning of the freezing cycle the temperature of the evaporator sensor probe is higher then 0 C 32 F small Red LED still OFF shortage of refrigerant inoperative hot gas valve etc the P C BOARD switch OFF immediately the unit with the simultaneous blinking of the WARNING RED LED The length of this timed portion of the freezing cycle is pre fixed and related to the setting of the first four DIP SWITCH keys The DIP SWITCH keys setting is made in consideration of the type of condenser used and size of ice cubes DIP SWITCH FACTORY SETTING COMBINATIONS PER MODEL AND VERSION FREEZING CYCLE DEFROST CYCLE DEFROST CYCLE 45 39 AIR WATER DIP SWITCH 1 2 3 4 5 6 7 8 9 10 ECM 106 A ON ON OFF ON ON OFF ON ON OFF ON ECM 106 W ON ON OFF ON ON OFF ON ON OFF OFF ECL 106 A OFF OFF OFF ON OFF ON ON ON OFF ON ECL 106 W OFF OFF OFF ON OFF ON ON ON OFF ECS 126 176 ON ON OFF ON OFF ON ON ON ON ECS 126 176W ON ON OFF ON ON ON OFF ECM 126 A ON ON OFF ON ON ECM 126 W ON ON OFF ON OFF ECL 126 A ON ON OFF ON ECL 126 W ON OFF ECM 176 A OFF ON ECM 176 W OFF OF
34. arvest Restriction in incoming water line Water inlet valve not opening Hot gas valve orifice restricted Clogged air vented holes in mold cups Discharge head pressure too low Check water valve strainer and flow control If necessary enlarge the flow control orifice Valve coil with open winding Replace valve Replace hot gas valve assy Clean out holes plugged See incorrect discharge pressure 37 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Unit won t harvest Inoperative P C Board Hot gas valve not opening Water solenoid valve not opening Replace P C Board Valve coil with open winding Replace valve Valve coil with open winding Replace valve Incorrect discharge pressure Inoperative condenser sensor Inoperative P C Board Water regulating valve misadjusted EC 126 176 206 226 only Replace sensor Replace P C Board Adjust its setting stem Excessive water in unit base Water tubing leaking Check Tighten or replace 38 MAINTENANCE AND CLEANING INSTRUCTIONS A GENERAL The periods and the procedures for maintenance and cleaning are given as guides and are not to be construed as absolute or invariable Cleaning especially will vary depending upon local water and ambient conditions and the ice volume produced and each icemaker must be maintened individually in accordance with its particular l
35. capillary tube where due to the heat exchanging action it loses some of its heat content so that its pressure and temperature are lowered as well Next the refrigerant enters into the evaporator serpentine which has a larger 1 0 then the capillary and starts to boil off this reaction is emphasized by the heat transferred by the sprayed water The refrigerant then increases in volume and changes entirely into vapor The vapor refrigerant then passes through the suction accumulator used to prevent that any small amount of liquid refrigerant may reach the compressor and through the suction line In both the accumulator and the suction line itexchanges heat with the refrigerant flowing into the capillary tube warmer before to be sucked in the compressor and to be recirculated as hot compressed refrigerant gas The freezing cycle is controlled by the evaporator temperature sensor which has its probe in contact with the evaporator serpentine that determines the length of its first portion of the cycle When the temperature of the evaporator serpentine drops to a pre set value small Red LED ON steady the evaporator sensor probe changes its electrical resistance allowing a low voltage current 15 volts to flow tothe P C BOARD which in turn activates an electronic timer The timer which is built in the P C BOARD takes over from the evaporator temperature sensor the control ofthe freezing cycle upto its completion NOTE
36. cubes Shortage of water Dirty water supply Accumulated impurities See remedies for shortage of water Use water softner or water filter Use SCOTSMAN Ice Machine cleaner SERVICE DIAGNOSIS Page 36 SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Shortage of water Water spilling out through curtain Water solenoid valve not opening Water leak in sump area Water flow control plugged Leak of water drain valve Check or replace curtain Replace valve Locate and repair Replace water inlet valve Replace valve Irregular cubes size amp some cloudy Some jets plugged Shortage of water Unit not level Remove jet cover and clean See shortage of water Level as required Cubes too large Freezing cycle too long Review setting of DIP SWITCH keys Decreased ice capacity Inefficient compressor Leaky water valve Non condensable gas in system Poor air circulation or excessive hot location Red alarm LED glows Overcharge of refrigerant Capillary tube partially restricted Hot gas solenoid valve leaking Short of refrigerant Discharge head pressure too high Replace Repair or replace Purge the system Relocate the unit or provide for more ventilation Correct the charge Purge off slowly Blow charge add new gas amp drier after evacuating system with vacuum pump Replace valve Charge to data plate indication See incorrect discharge pressure Poor h
37. e cleaning solution in the entire water system while the three leds of the PC Board are blinking Fig 8 12 Let the unit to remain in the CLEANING mode for about 20 minutes then unplug again the machine NOTE The amount of Cleaner and the time needed for the cleaning of water system depends of the water conditions 13 Switch OFF the ice maker at master button switch then flush out the cleaning solution from the sump reservoir by taking off the sump plastic cup Once flushed out install again the sump plastic cup 14 Pourontothe evaporator cavity two or three liters of clean potable water to rinse the mold cups and the platen 15 Switch ON again the machine The water pump is again in operation to circulate the water in order to rinse the entire water system Do the operation as per steps 13 and 14 twice so to be sure no more traces of descaling solution remains into the sump Page 40 Sanitation NOTE Sanitation of the water system is recommended to be done once a month 16 Prepare in a plastic container the sanitation solution as per manufacturer dilution using warm water 45 50 C NOTE Never mix the cleaning with the sanitising solution 17 Followthe procedures as per cleaning from item 10 to item 13 just shorting the operation of the water pump to 10 minutes 18 Place again the evaporator cover and the unit service panels 19 At completion of the fr
38. e 40 C 100 F b Water inlet temperatures minimum 5 C 40 F and maximum 35 C 90 F c Well ventilated location for air cooled models d Service access adequate space must be leftfor all service connections through the rear of the ice maker A minimum clearance of 15 cm 6 must be left at the sides of the unit for routing cooling air drawn into and exhausted out of the compartment to maintain proper condensing operation of air cooled models 2 Level the unit in both the left to right and front to rear directions D ELECTRICAL CONNECTIONS See data plate for current requirements to determine wire size to be used for electrical connections All SCOTSMAN icemakers require a solid earth wire All SCOTSMAN ice machines are supplied from the factory completely pre wired and require only electrical power connections to the wire cord provided at rear of the unit Make sure that the ice machine is connected to its own circuit and individually fused see data plate for fuse size The maximum allowable voltage variation should not exceed 10 and 10 of the data plate rating Low voltage can cause faulty functioning and may be responsible for serious damage to the overload switch and motor windings NOTE external wiring should conform to national state and local standards and regulations Check voltage on the line and the maker s data plate before connecting the unit E WATER SUPPLY
39. eceives power from the Master Switch as well as it provides power to the Red Alarm switch in order to signal any possible uncorrect operation condition of the machine as clogged air filter air cooled version only or short missing of condensing water water cooled LENGTH PROGRAMS version as detailed at item B HARVEST It signal also the time for the cleaning of the water CYCLE A B 0 system of the machine cleaning that can 180 Upto6 30 Up to 9730 XXXX change according to the local water conditions 165 6 30 7 Up to 3 9307 10 XXXX from six month standard Jump In to twelve 150 7 8 3 315 107 11 XXXX months Jump Out 135 8 315 3397 11 12 XXXX Once cleaned the water system it s necessary to 120 940 330 430 12 1390 3 cancel the time stored into the PC Board by 105 1030 20 490 6 1990415 2 4 pushing hold for more then 20 the Red 90 gt 12 gt 6 gt 15 gt 4 Alarm Re Set Button till it starts to blink LENGTH OF TIMED PORTION OF FREEZING CYCLE ACCORDING TO THE DIP SWITCH SETTING COMBINATIONS 4 2 3 4 1 2 3 4 1 Q E e DO cC omo CIE i ON zs 2 23 Min i ON Bz z i 10 r om 7 min 4 b EN mim 19 min 11 an EE 5 min 17111 12 ON o m 777 i ON OF mmm mum
40. eezing and harvest cycle make sure of proper texture and clearness of the ice cubes and that they do not have any acid taste ATTENTION In case the ice cubes are cloudy white and have an acid taste melt them immediately by pouring on them some warm water This to prevent that somebody could use them 20 Wipe clean and rinse the inner surfaces of the storage bin REMEMBER To prevent the accumulation of undesirable bacteria itis necessary to sanitize every week the interior of the storage bin EVAPORATOR ELECTR TIMER e o e E lt DATA PROCESSOR 4 Nhe SUZ NZ e o0060 WATER DRAIN VALVE 5 d WATER IN VALVE ELECTRONIC CARD
41. en wiped clean G 10 Has the owner user been given the User Manual and been instructed on the importance of periodic maintenance checks 11 Has the Manufacturer s registration card been filled in properly Check for correct model and serial number against the serial plate and mail the registration card to the factory 12 Has the owner been given the name and the phone number of the authorized SCOTSMAN Service Agency serving him INSTALLATION PRACTICE AY A Ai Hand shut off valve Water filter Water supply line flexible hose 3 4 male fitting Vented drain Open trapped vented drain Drain fitting Main switch Power line N o e Not 90 F WARNING This icemaker is not designed for outdoor installation and will not function in ambient temperatures below 10 C 50 F or above 40 C 100 F This icemaker will malfunction with water temperatures below 5 C 40 F or above 35 C 16 OPERATING INSTRUCTIONS START UP After having correctly installed the ice maker and completed the plumbing and electrical connections perform the following Start up pro cedure Switch ON the powerline disconnect switch and push the green button switch Unit will start up in charging cycle mode NOTE Every time the un
42. ing requirements MIN MAX Air temperature 10 C 40 Water temperature 5 C 35 Water pressure 1bar 5 bar Electr voltage variations from voltage rating specified on nameplate 10 1090 WATER COOLED MODELS 21 32 38 AMBIENT TEMPERATURE 35 32 27 21 15 10 C WATER TEMPERATURE NOTE With the unit in built in conditions the ice production is gradually reduced in respect to the levels shown in the graf up to a maximum of 10 at room temperatures higher than 32 C The daily ice making capacity is directly related to the condenser air inlet temperature water temperature conditions of the condenser air filter and age of the machine To keep your SCOTSMAN CUBER at peak performance levels periodic maintenance checks must be carried out as indicated on Maintenance and Cleaning section of this manual 4 152 600 6 axe 506 2 5 U o gt 2 amp lt z 8 9 S SSS SS SS a 401
43. it Page 14 WATER DRAIN The recommended drain tube is a plastic or flexible tube with 18 mm 3 4 I D which runs to an open trapped and vented drain WATER DRAIN WATER COOLED MODELS Connect the 3 4 male fitting of the condenser water drain utilizing a second flexible hose to the open trapped and vented drain NOTE water supply and the water drain must be installed to conform with the local code In some case a licensed plumber and or a plumbing permit is required The water can be pumped out up to 1 5 m rise HAND DISCONNECT SWITCH WATER DRAIN WATER INLET F FINAL CHECK LIST 1 Is the unit in a room where ambient temperatures are within a minimum of 10 C 50 even in winter months 2 Is there at least a 15 6 clearance around the unit for proper air circulation 3 15 the unit level IMPORTANT 4 Have all the electrical and plumbing connections been made andis the water supply shut off valve open 5 Has the voltage been tested and checked against the data plate rating 15 6 water supply pressure been checked to ensure a water pressure of at least 1 bar 14 psi 7 Check all refrigerant lines and conduit to guard against vibrations and possible ailure 8 Have the bolts holding the compressor down been checked to ensure that the compressor is snugly fitted onto the mounting pads 9 Have the bin liner and cabinet be
44. it returns under power after having been switched off the water inlet valve the hot gas valve and the water drain valve get energized for a period of 5 minutes thus to admit new water to the machine sump reservoir to fill it up and eventually to wash off any dirt that can have deposited in it during the unit off period Fig 1 B During the water filling operation check to see that the incoming water dribbles through the evaporator platen dribbler holes down into the sump reservoir to fill it up and also that the incoming surplus of water flows out through the overflow pipe into the drain line During the water filling phase the components energized are THE WATER INLET SOLENOID VALVE THE HOT GAS SOLENOID VALVE THE WATER DRAIN SOLENOID VALVE Not on EC 106 NOTE If in the 5 minutes lenght of the water filling phase the machine sump reservoir does not get filled with water up to the rim of the overflow pipe it is advisable to check 1 The water pressure of the water supply line thatmustbe atleast 1 bar 14 psig Minimum Max 5 bar 70 psig 2 The filtering device installed in the water line that may reduce the water pressure below the Minimum value of 1 bar 14 psig 3 Any clogging situation in the water circuit like the inlet water strainer and or the flow control EVAPORATOR ELECTR TIMER TEMPERATURE SENSORS BIN a lt e nl a a WATER DRAIN VALVE
45. it where it is not reached by any direct light beam or light radiation also itis recommended to keep the bin door constantly closed and to follow the instructions for the periodical cleaning of thelight sensor elements as detailed in the MAINTENANCE AND CLEANING PRO CEDURES Its sensivity can be adjusted by turning the IR trimmer 21 L Remove if fitted the refrigerant service M Instruct the owner user on the general gauges and re fit the unit service panels operation of the ice machine and about the previously removed cleaning and care it requires NEW WATER DRAIN VALVE EVAPORATOR TEMPERATURE SENSORS BIN ELECTRONIC CARD WATER DRAIN VALVE TEMPERATURE SENSORS ELECTRONIC CARD 22 PRINCIPLE OF OPERATION How it works In the SCOTSMAN cube ice makers the water used to make the ice is kept constantly in circulation by an electric water pump which primes it to the spray system nozzles from where it is diverted into the inverted mold cups of the evaporator A small quantity of the sprayed water freezes into ice the rest of it cascades by gravity into the sump assembly below for recirculation FREEZING CYCLE The hot gas refrigerant discharged out from the compressor reaches the condenser where being cooled down condenses into liquid Flowing into the liquid line it passes through the drier filter then it goes all the way through the
46. level the two metal pins close the electrical contact through the water transmitting a low voltage current to the PC Board The PC Board activates the Water Drain Pump for 8 seconds pumping out most of the water contained into the Sealed Water Reservoir K To be sure of the correct operation of ice level control device place one hand between its sensing eyes to interrupt the light beam during the defrost cycle only The Bin Full YELLOW LED starts to blink Fig 6 and when the defrost cycle is over the unit stops with the simultaneous glowing of the same LED to monitor the BIN FULL situation Fig 6a NOTE The Level Control stops the operation of the machine at BIN FULL ONLY at the end of the defrost harvest cycle Take the hand out from the ice level control sensors to allow the resumption of the light beam After approximately 6 seconds the ice maker resume its operation with the immediate glowing of the FIRST YELLOW LED indicating UNIT IN OPERATION and the extinguishing of the BIN FULL YELLOW LED NOTE The ICE LEVEL CONTROL INFRARED SYSTEM is independent of the temperature however the reliability of its detection can be affected by external light radiations or by any sort of dirt and scale sediment which may deposit directly on the light source and on the receiver Topreventany possible ice maker malfunction due to negative affection of the light detector itis advisable to locate the un
47. ls the length of the first part of the freezing cycle Asit reaches a predeter mined temperature it supplies a low voltage current to the P C BOARD in order to activate the electronic timer which takes over the control of the freezing cycle for a pre fixed time according to the DIP SWITCH keys setting see Tab B NOTE The evaporator temperature sensor factory pre set is the same for all the models and is not adjustable in the field Once completed the timed portion of the freezing cycle the system goes automatically into the defrost cycle which has also a pre fixed length At completion of the defrost cycle the P C BOARD command the unit to start again a new freezing cycle OPERATION ELECTRICAL SEQUENCE The following charts illustrate which switches and which components are ON or OFF during a particular phase of the icemaking cycle Refer to the wiring diagram for a reference BEGINNING FREEZE Electrical componenis Loads ON OFF eue Fan Motor Air cooled only and TRIAC Hot Gas Valve Water Inlet Water Drain Valve Not on AC 106 P C Board Relay 1 Coil P C Board Relay 2 amp 3 Coil Water Pump 0 Elctronic Controls amp Sensors ON OFF Evaporator Sensor
48. lution 4 Remove the plastic cup located on the bottom of sump freezing chamber to drain out all water and scale deposits 5 Lift up and remove the curtain 6 Liftuptheentire spray platen from its bottom seat and take it out to clean it separately 7 Using a bottle poor fresh water into the bottom of the sump freezing chamber to clean out most of scale deposit 8 Install again the spray platen the curtain as well as the bottom plastic cup Cleaning 9 Prepare the cleaning solution by diluting in a plastic container two liters of warm water 45 50 C with 0 2 liters of Ice Machine Cleaner WARNING The SCOTSMAN Ice Machine Cleaner contains Phosphoric and Hydroxyacetic acids These compounds are corrosive and may cause burns if swallowed DO NOT indu ce vomiting Give large amounts of water or milk Call Physician immediately In case of external contact flush with water KEEP OUT OF THE REACH OF CHILDREN 10 Remove the evaporator cover then slowly pour onto the evaporator platen the cleaning solution With the help of a brush dissolve the most resistant and remote scale deposits in the platen 11 Switch ON again the machine at front master button switch then push the PC BOARD PUSH BUTTON for more then 2 and less of 5 to put the machine in cleaning mode NOTE With the system in CLEANING RINSING mode the water pump is the only component in operation to circulate th
49. ng the ice cubes The water running over the evaporator cavity drops by gravity through the dribbler holes of the platen into the sump reservoir where it will be sucked by the water pump and primed to the spray system Q WATER INLET SOLENOID VALVE 3 4 MALE FITTING EC 106 water cooled version only A special water inlet solenoid valve is used on water cooled version An automatic hi pressure control activates the coil of the water inlet solenoid valve so to supply a metered amount of water to the condenser and drop down its temperature and pressure R HOT GAS SOLENOID VALVE The hot gas solenoid valve consists basically in two parts the valve body and the valve coil Located onthe hot gas line this valve is energized through the micro processor of P C BOARD during the defrost cycle as well as during the Page 32 water filling phase During the defrost cycle the hot gas valve coil is activated so to attract the hot gas valve piston in order to give way to the hot gas discharged from compressor to flow directly into the evaporator serpentine to defrost the formed ice cubes S FAN MOTOR Air cooled version The fan motor is controlled through the P C BOARD and the TRIAC by the condenser tem perature sensor Normally it operates only during the freezing cycle to draw cooling air through the condenser fins Inthe second part of the freezing cycle the fan motor can run at intermittance as the condenser pressure must be ke
50. nks Blown power in fuse in P C Board Main switch in OFF position Inoperative P C Board Loose electrical connections Blown power out fuse in P C Board Inoperative ice level control Inoperative P C Board High head pressure High evaporating temperature after 15 mins beginning freeze Condenser sensor out of order Evaporator sensor out of order Replace fuse amp check for cause of blown fuse Turn switch to ON position Replace P C Board Check wiring Replace fuse amp check for cause of blown fuse Clean or replace ice level control Replace P C Board Inoperative fan motor Replace Shortage of water WC Hot gas valve leak Replace it Water inlet valve leak Replace it Short of refrigerant Compressor cycles intermittently Replace it Replace it Compressor cycles intermittently Low voltage Non condensable gas in system Compressor starting device with loose wires Mechanical problem Check circuit for overloading Check voltage at the supply to the building If low contact the power company Purge the system Check for loose wires in starting device Replace compressor Cubes too small Freezing cycle too short Capillary tube partially restricted Moisture in the system Shortage of refrigerant Review setting of DIP SWITCH keys Blow charge add new gas amp drier after evacuating systemwithvacuum pump Same as above Check for leaks amp recharge Cloudy
51. ocation requirements B ICEMAKER The following maintenance should be scheduled at least two times per year on these icemakers 1 Check and clean the water line strainer 2 Check that the icemaker is levelled in side to side and in front to rear directions 3 Check for water leaks and tighten drain line connections Pour water down bin drain line to be sure that drain line is open and clear 4 Check size condition and texture of ice cubes Perform adjustment of cube size control as required 5 Check the ice level control sensor to test shut off Put your hand between the light source andthe receiver so to cut offthe light beam for at least one minutes This should cause the ice maker to shut off and the light up of the 2nd LED yellow light NOTE Within few seconds after the removal of the hand from the Infrared sensing light the icemaker restarts in freezing cycle The ice level control uses devices that sense light therefore they must be kept clean enough so they can see Every month clean wipe the sensing eyes with a clean soft cloth 6 Check for refrigerant leaks C CLEAN REPLACE OF AIR CONDENSER FILTER NOTE The new EC series in the air cooled version are standard equipped with an air condenser filter as well as a Cleaning Reminder Board to remind to the end user the need for the cleaning of the air filter or of the water system Red Alarm Light ON Steady or Blinking ri
52. p tank By doing so it allows to the ice maker to make every new freezing cycle with new fresh water avoiding thereby the accumulation of sediments and scales which soonor later will cause the partial or total clogging of the water system on the unit 33 ADJUSTMENT PROCEDURES A ADJUSTMENT OF THE CUBE SIZE CAUTION Before performing actual adjustment of the cube size check other possible causes for cube size problems refer to the Service Diagnosis Section for problem review and analysis Do not perform any adjustment till the icemaking system has progressed through several complete freezing and harvest cycle to observe size and quality of ice cubes and whether or not the cube size problem exists l Ifthe cubes are shallow size Indentation is too deep probably the length of the second phase of the freezing cycle is too short so to extend such length you have to 1 Locate the DIP SWITCH on the front of the 2 Take note of the combination of the first four DIP SWITCH KEYS and check the corrisponding length of freezing cycle 2nd phase on Table B 3 Set the same DIP SWITCH KEYS to correspond to the prior combination shown on Table B which allow an extention of two more minutes of the length of the freezing cycle 4 Observe the ice cubes in the next two harvests and eventually repeat steps 2 and 3 above until proper ice cubes size is achieved See figure Ifthe cubes
53. pt between two corresponding head pressure values T COMPRESSOR The hermetic compressor is the heart of the refrigerant system and it is used to circulate and retrieve the refrigerant throughout the entire system It compresses the low pressure refrigerant vapor causing its temperature to rise and become high pressure hot vapor which is then released through the discharge valve 0 HI PRESSURE CONTROL EC 106 water cooled version only Used only onthe water cooled versions itoperates to keep between 9 5 and 10 5 bars 135 150 psig the hi side or discharge pressure of the refrigerant system by energizing the coil of the water inlet solenoid valve that control the cooling water flow to the condenser V WATER REGULATING VALVE Not on EC 106 Water cooled version This valve controls the head pressure in the refrigerant system by regulating the flow of water going to the condenser As pressure increases the water regulating val ve opens to increase the flow of cooling water W WATER DRAIN SOLENOID VALVE Not on EC 106 The water drain solenoid valve electrically connected in parallel to the water inlet and to the hot gas solenoid valves is energized for all the length of the defrost cycle By means of the water pump that remains energized for 15 seconds at the beginning of the defrost cycle it allows the drain out of all remaining water rich of minerals deposited during the previous freezing cycle from the sum
54. r has a DIP SWITCH with ten switching keys which allow to set up the micro processor program in order to extend orto shorten the length of freezing cycle in relation to the different model and versions of ice machines The DIP SWITCH first four keys setting determines the length of the 2nd phase of freezing cycle controlled by the electronic timer as detailed in the table B TheDIP SWITCH keys 5 amp 6 setting determines the length of the defrost cycle according to the size of the cubes Large or Medium as per the following setting ON ON PROGRAM A ON OFF PROGRAM B OFF OFF PROGRAM C OFF ON PROGRAM D LENGTH OF HARVEST CYCLE ACCORDING TO THE TIME TO DROP THE EVAP TEMPERATURE FROM 0 TO 15 C DIP SWITCH 7 8 allow the extention of the length of the harvest defrost cycle according to their combination as per following chart DIP SWITCH ADDITIONAL DEFROST TIME 7 8 ON ON 0 OFF ON 30 ON OFF 60 OFF OFF 90 The 9th key is used to supply power to the water pump for the first 15 seconds of the defrost cycle position OFF or for the first 30 seconds position ON The 10th key is used to modify the CUT OUT condensing temperature from 70 C 160 F for the air cooled versions ON position to 60 C 140 F OFF position for the water cooled versions L EXTERNAL SWITCHES SOCKET Connected to the external Green Master and Red Alarm Reset Switches it r
55. rough the 5 minutes water filling phase At the start of the freezing cycle the refrigerant suction or lo pressure lowers rapidly to 1 bar 14 psig on models EC 106 EC 126 and EC 176 and to 2 5 bar 35 psi on EC 206 226 then it declines gradually in relation with the growing of the ice thickness to reach at the end of the cycle approx 0 0 1 bar 0 0 3 psig on models EC 106 EC 126 and EC 176 and to 1 7 bar 24 psi on EC 206 226 with the cubes fully formed in the cup molds The total length of the freezing cycle ranges from 20 to 25 minutes DEFROST OR HARVEST CYCLE Fig E and G As the electronic timer has carried the system throughout the second phase of freezing cycle the defrost cycle starts ATTENTION In case the unit is able to reach 0 C 32 F evaporating temperature within 15 minutes but after 45 minutes from the beginning of the freezing cycle it has not yet reached the evaporator tem perature of 15 C 5 F the machine goes straight into the defrost cycle omitting the timed portion of the freezing cycle relied to the setting of the first four DIP SWITCHES NOTE The length of the defrost cycle is related to the length of the second phase of freezing cycle T2 Time to drop the evaporating temperature from 0 32 F small Red LED blinking to 15 C 5 F small Red LED ON steady Itis possible to extend the length of the defrost cycle by changing the setting of DIP SWIT
56. s to blink in case the light beam is constantly interrupted for more than 60 seconds the ice machine stops with the glowing up of the Bin Full YELLOW LED to monitor the situation of ice bin full at the end of the harvest cycle The 60 seconds of delay prevent that an ice Scoop movement or the ice dropping through the ice chute interrupting for a while the light beam can stop the operation of the unit Six seconds after the scoop out of the ice with the resumption of the light beam between the two infrared sensor of ice level control the ice machine restarts again with the extinguishing of the YELLOW LED BOARD Data processor The P C BOARD fitted in its plastic box located in the front of the unit consists of two separated printed circuits one at high and the other at low voltage integrated with two fuses one on power 32mA one on power out 6 3 A of four aligned LEDS monitoring the operation of the machine of one extra monitoring RED LED blink 0 C steady 15 C of one DIP SWITCH G PUSH BUTTON OPERATION DURING WATER FILLING PHASE Push for more then 2 but less then 5 the machine enters in Cleaning Mode Push for more then 5 the machine by pass the Water Filling Phase DURING FREEZING HARVEST CYCLE Push for more then 5 during the Freezing cycle the machine goes immediately into Harvest Push for more then 5 during the Harvest cycle the machine enters immediately in the
57. spectively with machine in operation 1 Withdraw the air filter from the front through the opening of the front panel LL 2 Blowpressurised air on the opposite direction of the condenser air flow so to remove the dust accumulated 3 If pressurised air is not available use tap water always in the counter flow air diretcion Once cleaned shake it so to remove most of the accumulated water then dry it using an hair dryer NOTE Incase the air filter straineris damaged replace it with a new one 4 Install it again by pushing it through the front panel opening 39 D CLEANING SANITISING INSTRUCTIONS OF WATER SYSTEM Clean sanitise the water system evaporator bin and spray jets using a solution of SCOTSMAN Ice Machine Cleaner Sanitizer NOTE Cleaning requirements vary according to the local water conditions and individual user operation Continuous check of the clarity of ice cubes and visual inspection of the water spraying parts before and after cleaning will indicate frequency and procedure to be followed in local areas 1 Remove the front and top panels to gain access either to the control box and to the evaporator 2 Make sure that all ice cubes have been released from their cups then switch OFF the machine at front master button switch 3 Scoop out all the ice cubes stored into the bin in order to prevent them from being contaminated with the cleaning so
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