Scotsman EC 46 Service Manual Download Page 2

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INDICE

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Table of contents

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Specifications EC 46
Specifications EC 56
Specifications EC 86

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
Service diagnosis

MAINTENANCE AND CLEANING INSTRUCTIONS

General
Icemaker
Clean - Replace of air condenser filter
Cleaning instructions of water system

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Summary of Contents for EC 46

Page 1: ... Italy Tel 39 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 com E Mail scotsman europe frimont it ISO 9001 Cert n 0080 SERVICE MANUAL EC 46 EC 56 EC 86 Cubers with storage MS 1000 94 REV 10 2008 ...

Page 2: ...ons 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 Service diagnosis MAINTENANCE AND CLEANING INSTRUCTIONS General Icemaker Cle...

Page 3: ...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 MAX 40 C 35 C 5 bar 10 ice making capacity 25 24 23 22 21 20 19 18 17 16 Kg 32 27 21 15 10 AIR CO...

Page 4: ...CIFICATIONS Basic electr Amps Watts Nr of wires Amps fuse 230 50 1 2 1 12 400 3 x 1 5 mm2 10 8 6 EC 46 CUBER machine specifications Cubes per harvest 18 medium A 15 C water temperature Dimensions HEIGHT 645 mm WIDTH 386 mm DEPTH 600 mm WEIGHT 42 Kgs 77 350 Bin Water req Capacity lt 24 HR EC 46 AS 6 Air EC 46 WS 6 Water ...

Page 5: ...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 32 30 28 26 24 22 20 18 Kg 32 27 21 15 10 AIR COOLED M...

Page 6: ...IFICATIONS Basic electr Amps Watts Nr of wires Amps fuse 230 50 1 2 1 12 400 3 x 1 5 mm2 10 0 90 270 EC 56 CUBER machine specifications Cubes per harvest 24 medium A 15 C water temperature Dimensions HEIGHT 695 mm WIDTH 386 mm DEPTH 600 mm WEIGHT 45 Kgs 7 6 7 Bin Water req Capacity lt 24 HR EC 56 AS 6 Air EC 56 WS 6 Water ...

Page 7: ...he 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 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 Kg 32 27 21 15 10 AI...

Page 8: ...ctr Amps Watts Nr of wires Amps fuse 230 50 1 3 3 18 480 3 x 1 5 mm2 10 0143 500 EC 86 CUBER machine specifications Cubes per harvest 24 medium A 15 C water temperature Dimensions HEIGHT without legs 795 mm HEIGHT with legs 915 mm WIDTH 530 mm DEPTH 600 mm WEIGHT 45 Kgs 8 9 8 4 Bin Water req Capacity lt 24 HR EC 86 AS 6 Air EC 86 WS 6 Water ...

Page 9: ...ght 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 A INTRODUCTION This manual provides the specifications and the step by stepproceduresfortheinstallation start up and operation maintenance and cleaning for the SCOTSMAN EC series icemakers Th...

Page 10: ...g the flexible tube supplied tothecoldwatersupplylinewithregularplumbing 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 Cooled Versions On WaterCooledversionthewaterinletsolenoid valve has two separate outlets...

Page 11: ...er supply pressure been checked to ensure a water pressure of at least 1 bar 14 psi 7 Check all refrigerant lines and conduit lines to guard against vibrations and possible failure 8 Havetheboltsholdingthecompressordown been checked to ensure that the compressor is snugly fitted onto the mounting pads 9 Have the bin liner and cabinet been wiped clean 10 Has the owner user been given the User Manua...

Page 12: ...evaporatortemperaturereaches a preset value the evaporator thermostat or cube size control changes its contacts the freezing cycleendsandstartsthedefrostorharvestcycle Freezing time will range between 20 and 22 minutes in a 21 C ambient temperature Longer time for temperature above shorter when below Average complete cycle range is about 23 to 25 minutes I Check during the first defrost harvest cy...

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Page 15: ...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 PWD SYSTEM the water contained into the Sealed Water Reservoir The water can be pumped out up to 1 5 m rise or to 30 m on horizontal length POWER WATER INLET WATER DRAIN HAND DISC...

Page 16: ...drain hose prevents the coming back of the discharged water SCHEMATIC SYSTEM Storage bin Overflow drain tube Storage bin drain tube Water tank inlet fitting Sealed water tank Water pump Check valve Vented tube Water level sensors Drain out Drain fitting ...

Page 17: ...ox behind the front louvered panel The thermostat sensing tube is located into a bulb holder on the side wall of the ice storage bin where it automatically shuts the icemaker OFF when in contact with the ice and re starts the icemaker when the ice is removed Factory settings are 1 C 35 F OUT and 4 C 39 F IN E CUBE SIZE CONTROL EVAPORATOR THERMOSTAT The cube size control evaporator thermostat body ...

Page 18: ... RE SET PUSH BUTTON Located in the front of the machine just 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 aircooledversion ONsteadywithmachine 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 ...

Page 19: ... Storage bin On its top cover are secured two metal pins Water Level Sensor connected to the PWD PC Board O WATER DRAIN PUMP Placed beside the Sealed Water Reservoir is used to pump out the water contained into the tank It is energised by the PWD PC Board for just few seconds P CHECK VALVE Placed on the discharge hose of the water pump it prevents the coming back of the pumped out water Q CONDENSE...

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Page 21: ...Page 21 Page 21 WIRING DIAGRAM EC 46 EC 56 AIR AND WATER COOLED 230 50 60 1 The unit is shown on freezing cycle ...

Page 22: ...Page 22 Page 22 WIRING DIAGRAM EC 86 AIR AND WATER COOLED 230 50 1 The unit is shown on freezing cycle ...

Page 23: ...Page 23 Page 23 WIRING DIAGRAM EC 86 AIR AND WATER COOLED 230 60 1 The unit is shown on freezing cycle ...

Page 24: ... the building If low contact the power company Non condensable gas in system Purge the system Dirty condenser Clean with vacuun cleaner air or stiff brush DO NOT use wire brush Air circulation blocked Allow sufficient air space all around unit Compressor starting device with Check for loose wires in starting loose wires device Cubes too small Cube size control set improperly Check and adjust for p...

Page 25: ... pressure Clogged air filter Clean or replace Poor harvest Restriction in incoming water line Check water valve strainer and flow control If necessary enlarge the flow control orifice Too short defrost time Check temperature control Replace if necessary Cube size control set for too large Re set cube size control cubes Water inlet valve not opening Valve coil with open winding Replace valve Hot ga...

Page 26: ... the sensing bulb inside the tube will warm up and cause the icemaker to restart This control is factory set and should not be reset until testing is performed 6 Check for refrigerant leaks 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 ...

Page 27: ... 11 SwitchONagainthemachineatfront master button switch to start the icemaking process Allow the ice maker to operate for about 20 minutes Then turn the cleaning switch to the cleaning position II till the release of the ice cubes from their cups NOTE The amount of Cleaner and the time needed for the cleaning of water system depends of the water conditions 12 Switch OFF the ice maker at master but...

Page 28: ...e switch in cleaning position II switch it ON again When water starts overflowing through the drain line set the switch to operation I position The unit is now ready to resume normal operation 17 Place again the evaporator cover and the unit service panels 18 At completion of the freezing and harvest cycle make sure of proper texture and clearness of the ice cubes and that they do not have any aci...

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