Scotsman MC 45 Service Manual

Page 1Page 1SERVICE MANUALMC 15MC 45R 404 A VERSIONElectronicmodular cubersMS 1000.10 REV. 06/2003

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 13OPERATING INSTRUCTIONSSTART UPAfter having correctly installed the ice maker andcompleted the plumbing and electricalconnections, perfor

Page 14Page 14freezing cycle with the start up of:COMPRESSORWATER PUMPFAN MOTOR/S (in air cooled version) controlledby the condensing temperature sens

Page 15Page 15F. The ice making process takes place thereby,with the water sprayed into the molds that getsgradually refrigerated by the heat exchange

Page 16Page 16NOTE. The length of the entire freezing cycleis governed by the evaporator temperaturesensor which has its brobe placed in contactwith t

Page 17Page 17I. Check the texture of ice cubes just released.They have to be in the right shape with a smalldepression of about 5-6 mm in their crown

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 23E. PUSH BUTTON OPERATIONDURING WATER FILLING PHASE• Push for more then 2” but less then 5” themachine enters in Cleaning Mode• Push fo

Page 24Page 24RED ALARM LED ONToo hi condensing temperatureRED ALARM LED BLINKINGToo hi evaporating temperatureYELLOW FREEZING CYCLE ONUnit in freezin

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

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 283. Trace the electric wires belonging to the hotgas valve coil and disconnect them; then lift thevalve coil from the valve body.4. To in

Page 29Page 293. Remove the evaporator sensor probe takingoff the two metal clips securing it to the evaporatorserpentine.4. Recover the refrigerant f

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

Page 30Page 307. To install the replacement evaporator followthe above steps in reverse.NOTE. Thoroughly evacuate the system toremove moisture and non

Page 31Page 31WIRING DIAGRAMMC-15 A-W230/50/1 - 240/50/1 - 115/60/1B - WHITEG - GREYN - BLACKA - BLUEM - BROWNGV - YELLOW GREEN

Page 32Page 32WIRING DIAGRAMMC-15 A-W220/50-60/3 - 400/50/3 + NB - WHITEG - GREYN - BLACKA - BLUEM - BROWNGV - YELLOW GREEN

Page 33Page 33WIRING DIAGRAMMC-45 A-W230/50/1 - 240/50/1B - WHITEG - GREYN - BLACKA - BLUEM - BROWNGV - YELLOW GREEN

Page 34Page 34WIRING DIAGRAMMC-45 A-W220/50-60/3 - 400/50/3 + NB - WHITEG - GREYN - BLACKA - BLUEM - BROWNGV - YELLOW GREEN

Page 35Page 35SERVICE DIAGNOSISSYMPTOM POSSIBLE CAUSE SUGGESTED CORRECTIONUnit will not run Blown power in fuse in P.C.Board Replace fuse & check

Page 36Page 36SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTIONIrregular cubes size & some Some jets plugged Remove spray bar & jet bearingcloudy an

Page 37Page 37MAINTENANCE AND CLEANING INSTRUCTIONSA. GENERALThe periods and the procedures for maintenanceand cleaning are given as guides and are no

Page 38Page 38C. CLEANING INSTRUCTIONS OFWATER SYSTEM1. Remove left, center and right front panels togain access either to the control box and to the

Page 39Page 39FIG. 88. With the system in Cleaning mode thewater pump is the only component in operationto circulate the cleaning solution in the enti

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 9then to pass through the round hole provided intothe base of the Electronic Modular Cuber (Upperunit).10. Connect the electric plug of the