Scotsman MC 45 Manuel de service Page 1

Page 1Page 1SERVICE MANUALMC 15MC 45R 404 A VERSIONElectronicmodular cubersMS 1000.10 REV. 07/2000

Page 10Page 105. Disconnect the ice level control terminalplug from the P.C. Board of the upper ElectronicModular Cuber (now colled secondary).6. Secu

Page 11Page 11Since water is the most important single ingredientin producting ice you cannot emphasize toomuch the three items listed above.Low water

Page 12Page 124. Have all the electrical and plumbingconnections been made, and is the water supplyshut-off valve open?5. Has the voltage been tested

Page 13Page 13FIG. 11615141321 7 8 910 3 4 5 61112Rx TxWATER IN VALVEHOT GAS VALVECONTACTOR COILFAN MOTORWATER PUMP- EVAPORATOR- AMBIENT-

Page 14Page 141615141321 7 8 910 3 4 5 61112Rx TxWATER IN VALVEHOT GAS VALVECONTACTOR COILFAN MOTORWATER PUMP- EVAPORATOR- AMBIENT- CONDE

Page 15Page 151615141321 7 8 910 3 4 5 61112Rx TxWATER IN VALVEHOT GAS VALVECONTACTOR COILFAN MOTORWATER PUMP- EVAPORATOR- AMBIENT- CONDE

Page 16Page 161615141321 7 8 910 3 4 5 61112Rx TxWATER IN VALVEHOT GAS VALVECONTACTOR COILFAN MOTORWATER PUMP- EVAPORATOR- AMBIENT- CONDE

Page 17Page 17If the ice cubes are shallow and cloudy, it ispossible that the ice maker runs short of waterduring the freezing cycle second phase or,

Page 18Page 18When the temperature of the evaporatorserpentine drops to a pre-set value, the evaporatorsensor probe changes its electrical resistancea

Page 19Page 19

Page 2Page 2TABLE OFCONTENTSTable of contentsSpecifications MC 15Specifications MC 45GENERAL INFORMATION AND INSTALLATIONIntroductionUnpacking and Ins

Page 20Page 20The electrical components in operation duringthe freezing cycle are:COMPRESSORFAN MOTOR (in air cooled version)WATER PUMPCONTACTOR COILa

Page 21Page 21At the end of the defrost cycle, both the hot gasand the water inlet valves close and the machinestarts again a new freezing cycle.OPERA

Page 22Page 22Freeze CycleAverage DischargePressure A/C: 16÷18 bars (225÷250 psig)Average DischargePressure W/C: 17 bars (240 psig)Suction Pressure En

Page 23Page 23RE-SET/HI TEMPERATURE. To be selected toresume the unit operation when the ice makershuts off due to the intervention of the condenserte

Page 24Page 24LENGHT OF DEFROST CYCLE (IN SEC.) ACCORDING TO THEAMBIENT TEMPERATURE AND TO THE DIP SWITCH SETTING COMBINATIONSTAB. CLENGHT OF TIMED PO

Page 25Page 25I. WATER INLET SOLENOID VALVE - 3/4 GAS MALE FITTINGThe water inlet solenoid valve is activated by themicro processor of the P.C. BOARD

Page 26Page 26ADJUSTMENT, REMOVAL AND REPLACEMENTPROCEDURESSMALLIDENTATIONLITTLE OR NOICE IN CENTEROF CUBESTHICK BULGESOLID ICEOVER SIZENORMAL SIZE-SH

Page 27Page 27B. REPLACEMENT OF EVAPORATORTEMPERATURE SENSOR (BLUE PLUG)1. Remove front, left and top panels.2. Remove the evaporator cover and snap

Page 28Page 28H. REPLACEMENT OF WATER INLETSOLENOID VALVE1. Close the shut-off valve on the water supplyline and disconnect it from the water inlet fi

Page 29Page 294. To install the replacement drier removefactory seals and solder the refrigerant linestaking precautions to NOT OVERH EAT the drierbod

Page 3Page 3SPECIFICATIONSELECTRONIC MODULAR CUBER MODEL MC 15Important operating requirements:MIN.Air temperature 10°C (50°F)Water temperature 5°C

Page 30Page 305. Recover the refrigerant from the systemand transfer it in a container so to reclaim orrecycle it.6. Unsolder the refrigerant lines fr

Page 31Page 31WIRING DIAGRAMAIR AND WATER COOLED - SINGLE PHASEB - WHITEG - GREYN - BLACKA - BLUEM - BROWNGV - YELLOW GREEN

Page 32Page 32WIRING DIAGRAMAIR AND WATER COOLED - THREE PHASEB - WHITEG - GREYN - BLACKA - BLUEM - BROWNGV - YELLOW GREEN

Page 33Page 33SYMPTON POSSIBLE CAUSE SUGGEST CORRECTIONUnit will not run Blown fuse in P.C. Board Replace fuse & check for cause of(No warning LED

Page 34Page 34SYMPTON POSSIBLE CAUSE SUGGEST CORRECTIONIrregular cubes size & some Some jets plugged remove spray bar & jet bearingcloudy and

Page 35Page 35With a pick clean the orifice of the water streamjet that propells the spray bar.NOTE. Cleaning requirements vary accordingto the local

Page 36Page 361615141321 7 8 910 3 4 5 61112Rx TxWATER IN VALVEHOT GAS VALVECONTACTOR COILFAN MOTORWATER PUMP- EVAPORATOR- AMBIENT- CONDE

Page 37Page 371615141321 7 8 910 3 4 5 611Rx TxWATER IN VALVEHOT GAS VALVEFAN MOTORWATER PUMP- EVAPORATOR- AMBIENT- CONDENSERTEMPERATURE

Page 4Page 41.5 MC 15 AS 6B Air Stainless steel MC 15 WS 6B Water Stainless steelModel Cond. unit Finish Comp. HP Water req. - lt/24 HRSPECIFICATION

Page 5Page 5310300290280270260250240230220210200190180Kg.3210 °C27 21 15MODÈLES REFROIDIS PAR AIRTEMPÉRATURE DE L'EAUTEMPÉRATURE AMBIANTEPRODUCTI

Page 6Page 6 MC 45 AS 6B Air Stainless steel MC 45 WS 6B Water Stainless steel2.5Model Cond. unit Finish Comp. HP Water req. - lt/24 HRSPECIFICATION

Page 7Page 7A. INTRODUCTIONThis manual provides the specifications and thestep-by-step procedures for the installation, start-up and operation, mainte

Page 8Page 8C. LOCATION AND LEVELLINGWARNING. This Ice Cuber is designed forindoor installation only. Extended periodsof operation at temperature exc

Page 9Page 910. Connect the electric plug of the ice levelcontrol cable to the Cable Extension, then plug-in this one into its P.C. BOARD socket.11. R