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Scotsman MCL 1210 A, Service Manual

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Scotsman Ice Srl
Via Lainate, 31 - 20010 Pogliano M.se - Milano - Italy
Tel. +39-02-93960.1 (Aut. Sel.)- T39-02-93550500
Direct Line to Service & Parts:
Phone +39-02-93960350 - Fax +39-02-93540449
Website: www.scotsman-ice.it
E-Mail: [email protected]

ISO 9001 - Cert. n. 0080

MC 46

Electronic

modular cubers

New PC Board

From s.n. 28850

REV.   09/2015

SERVICE MANUAL

Summary of Contents for MCL 1210 A

Page 1: ...9 02 93960 1 Aut Sel Telefax 39 02 93550500 Direct Line to Service Parts Phone 39 02 93960350 Fax 39 02 93540449 Website www scotsman ice it E Mail scotsman europe scotsman it ISO 9001 Cert n 0080 MC...

Page 2: ...G TO MOVE THE UNIT INTO CLEANING PUSH DURING THE 60 MIN START UP DELAY TIME TO BY PASS IT START AMPS MC 16 SHORT A 230 V MC 16 SHORT W 230 V MC 16 SHORT A 400 V MC 16 SHORT W 400 V MC 46 A 230 V MC 46...

Page 3: ...d drain connections Final check list Installation practice OPERATING INSTRUCTIONS Start up Operatiobnal checks OPERATING PRINCIPLES How it works Freezing cycle Harvest cycle Control sequence Component...

Page 4: ...CED PER 24 HRS WATER COOLED MODELS SPECIFICATIONS ELECTRONIC CUBER MODEL MC 46 Important operating requirements MIN Air temperature 10 C 50 F Water temperature 5 C 40 C Water pressure 1 bar 14 psi Ele...

Page 5: ...DIMENSIONS HEIGHT 874 mm WIDTH 1074 mm DEPTH 534 mm WEIGHT 185 Kgs ACCESSORIES KSC 11 Cube stacking kit 220 230 50 1 7 2400 50 3 x Basic electr Amps Watts N of wires Amps fuse 230 50 1N 10 66 3 x 1 5...

Page 6: ...and rights side of the unit base and remove it from the skid Save the two bolts and nuts to mount the machine on storage bin or on top of another Modular Cuber GENERAL INFORMATION AND INSTALLATION 6...

Page 7: ...level control assy on its bracket by means of the two screws found in the hardware package supplied with the unit 9 Make a cut shear in the PVC plastic plug that goes from its edge to the center inser...

Page 8: ...Page 7 Page 7...

Page 9: ...g 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 r...

Page 10: ...5 Power line 6 Main switch 7 9 Drain fitting 8 10 Vented drain line 11 Open trapped vented drain WARNING This icemaker is not designed for outdoor installation and will not function in ambient temper...

Page 11: ...power to the unit to start it up by switching ON the power line main disconnect switch NOTE Every time the unit returns under power after having been switched off the water inlet valve the hot gas val...

Page 12: ...e head condensing pressure between 16 and 18 bars 225 250 psig In the water cooled models the discharge pressure is kept constant at the value of 17 bars 240psig bymeansofawaterregulating valve locate...

Page 13: ...wing into the evaporator serpentine 16 15 14 13 2 1 7 8 9 10 3 4 5 6 11 12 Rx Tx WATER IN VALVE HOT GAS VALVE CONTACTOR COIL FAN MOTOR WATER PUMP EVAPORATOR AMBIENT CONDENSER TEMPERATURE SENSORS BIN C...

Page 14: ...ube size Small Medium Large It is possible however to modify the timed length of the freezing cycle by changing the DIP SWITCH keys setting In Table B of PRINCIPLE OF OPERATION are shown the various t...

Page 15: ...W LED blinks fast and 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...

Page 16: ...and to be recirculated as hot compressed refrigerant gas Thefreezingcycleiscontrolledbytheevaporator temperaturesensor whichhasitsprobeincontact with the evaporator serpentine that determines the leng...

Page 17: ...Page 16 Page 16...

Page 18: ...hi temperature to restart the machine just switching OFF and ON the unit at main line switch Theicemachineresumesitsnormaloperation by going through the 5 minutes water filling phase At the start of t...

Page 19: ...frost cycle the P C BOARD commands 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...

Page 20: ...nutes from the beginning of the freezing cycle the evaporating temperature have not yet reached the value of 0 C 32 F the P C BOARD switches OFF the machine with the BLINKING of RED LED B CONDENSER TE...

Page 21: ...omponentsoftheicemaker compressor water pump solenoid valves etc At restart from any tripping OFF at Bin Full the new PC Board assures 45 seconds water filling phasesotorefillthewatersumpuptothemaximu...

Page 22: ...BUTTON PUSH BUTTON LED STATUS REASON WHY ON STEADY UNIT UNDER POWER ON STEADY FREEZING CYCLE BLINKING 60 MINUTES DELAY AT START UP JUMPER J3 OUT ON STEADY TOO HI DISCHARGE PRESSURE TEMP BLINKING TOO H...

Page 23: ...water pump and primed to the spray system K HOT GAS SOLENOID VALVE The hot gas solenoid valve consists basically in two parts the valve body and the valve coil Locatedonthehotgasline thisvalveisenergi...

Page 24: ...ontrols 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...

Page 25: ...ckthecorrisponding length of freezing cycle 2nd phase on Table B 3 Change the same DIP SWITCH KEYS settingsothatitwillcorrespondtothecombination on table B pre ceding the one remarked at step 2 This w...

Page 26: ...Page 25 Page 25 WIRING DIAGRAM MC 46 A W 230 50 1...

Page 27: ...Page 26 Page 26 WIRING DIAGRAM MC 46 A W 230 60 1...

Page 28: ...Page 27 Page 27 WIRING DIAGRAM MC 46 A W 220 50 60 3 400 50 3 N...

Page 29: ...f order Replace it Red alarm LED blink Freezing or Bin Full LED Ice Level Control out of order Replace it Red alarm LED blink alternatively Compressor cycles intermittently Low voltage Check circuit f...

Page 30: ...mp Hot gas solenoid valve leaking Replace valve Short of refrigerant Charge to data plate indication Discharge head pressure too high See incorrect discharge pressure Poor harvest Restriction in incom...

Page 31: ...individual useroperation Continuouscheckoftheclarity of ice cubes and visual inspection of the watersprayingpartsbeforeandaftercleaning will indicate frequency and procedure to be followed in local ar...

Page 32: ...T OF THE REACH OF CHILDREN 4 Scoop out all the ice cubes stored into the bin in order to prevent them from being contaminated with the cleaning solution then flush out the water from the sump reservoi...

Page 33: ...then turn the main switch to OFF disconnect unit from POWER 14 Flush out the rinsing solution from the sump reservoirs 15 Place again the evaporator cover and the unit service panels 16 Give POWER to...

Page 34: ...tes 21 Place again the evaporator cover and the unit service panels 22 At completion of the freezing and harvest cycle make sure of proper texture and clearness of the ice cubes and that they do not h...

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