Table of Contents
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Page 1
AC-EC 47
AC-EC 57
AC-EC 87
AC-EC 107
AC-EC 127
AC-EC 177
Electronic cubers with storage
Scotsman Ice Srl
Via Lainate, 31 - 20010 Pogliano M.se - Milano - 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.it
E-Mail: scotsman.europe@scotsman.it
SERVICE MANUAL
R 290 version
PC Board version
Page 1
REV. 10/2018
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Summary of Contents for Scotsman AC-EC 57
- Page 1 Page 1 Page 1 SERVICE MANUAL AC-EC 47 AC-EC 57 AC-EC 87 AC-EC 107 AC-EC 127 AC-EC 177 R 290 version Electronic cubers with storage PC Board version Scotsman Ice Srl Via Lainate, 31 - 20010 Pogliano M.se - Milano - Italy Tel.
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Page 2: Table Of Contents
Page 2 Page 2 Table of contents page INDICE Specifications AC-EC 47 Specifications AC-EC 57 Specifications AC-EC 87 Specifications AC-EC 107 Specifications AC-EC 127 Specifications AC-EC 177 GENERAL INFORMATION AND INSTALLATION Introduction Unpacking and Inspection Location and levelling Electrical connections... - Page 3 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.
- Page 4 Page 4 Page 4 SPECIFICATIONS AC 47 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR AC 47 AS 6 96** Stainless steel 9 Kg. AC 47 WS 6 Water Start Electric power cons. Basic electr.
- Page 5 Page 5 Page 5 SPECIFICATIONS EC 47 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 47 AS 6 96** Stainless steel 9 Kg. EC 47 WS 6 Water Start Electric power cons. Basic electr.
- Page 6 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.
- Page 7 Page 7 Page 7 SPECIFICATIONS AC 57 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR AC 57 AS 6 Stainless steel 12.5 Kg. AC 57 WS 6 Water Start Electric power cons. Basic electr. Amps Watts Nr.
- Page 8 Page 8 Page 8 SPECIFICATIONS EC 57 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 57 AS 6 Stainless steel 12.5 Kg. EC 57 WS 6 Water Start Electric power cons. Basic electr. Amps Watts Nr.
- Page 9 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.
- Page 10 Page 10 Page 10 SPECIFICATIONS AC 87 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR AC 87 AS 6 0143* Stainless steel 19 Kg. AC 87 WS 6 Water *NYA Start Electric power cons. Basic electr.
- Page 11 Page 11 Page 11 SPECIFICATIONS EC 87 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 87 AS 6 0143* Stainless steel 19 Kg. *NYA EC 87 WS 6 Water Start Electric power cons. Basic electr.
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Page 12: Specifications Ac-Ec 107
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. - Page 13 Page 13 Page 13 SPECIFICATIONS AC 107 - CUBER (R290 version) machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR AC 107 AS 6 0125* Stainless steel 23 Kg. AC 107 WS 6 Water *NYA Start Electric power cons.
- Page 14 Page 14 Page 14 SPECIFICATIONS EC 107 - CUBER (R290 version) machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 107 AS 6 0125* Stainless steel 23 Kg. EC 107 WS 6 Water *NYA Start Electric power cons.
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Page 15: Specifications Ac-Ec 127
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. - Page 16 Page 16 Page 16 SPECIFICATIONS Dimensions: HEIGHT (without legs) 920 mm. HEIGHT (with legs) 1009 mm. WIDTH 680 mm. DEPTH 600 mm. WEIGHT 70 Kgs. AC-EC 127 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR AC-EC 127 AS 6 177**...
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Page 17: Specifications Ac-Ec 177
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. - Page 18 Page 18 Page 18 SPECIFICATIONS Dimensions: HEIGHT (without legs) 990 mm. HEIGHT (with legs) 1079 mm. WIDTH 680 mm. DEPTH 600 mm. WEIGHT 70 Kgs. AC-EC 177 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR AC-EC 177 AS 6 150**...
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Page 19: General Information And Installation
NOTE . To retain the safety and performance misuse under the terms of the SCOTSMAN built into this icemaker, it is important that Manufacturer’s Limited Warranty resulting installation and maintenance be conducted in LOSS of warranty coverage. -
Page 20: Water Supply And Drain Connections
Is the unit in a room where ambient Water supply - Water cooled models temperatures are within a minimum of 10°C The water cooled versions of SCOTSMAN Ice (50°F) even in winter months? Makers require two separate inlet water supplies, one for the water sprayed for making the ice cubes Is there at least a 15 cm (6") clearance... -
Page 21: Installation Practice
12. Has the owner been given the name and 11. Has the Manufacturer’s registration card the phone number of the authorized SCOTSMAN Service Agency serving him? been filled in properly? Check for correct model INSTALLATION PRACTICE... -
Page 22: Operating Instructions
Page 22 Page 22 OPERATING INSTRUCTIONS incoming surplus of water flows out through the START UP overflow pipe into the drain line. After having correctly installed the ice maker and During the water filling phase the components completed the plumbing and electrical energized are: connections, perform the following “Start-up”... -
Page 23: Operational Checks
Page 23 Page 23 At completion of the water filling phase In case of air condenser filter clogged such to (5 minutes) the unit passes automatically into the prevent the proper flow of the cooling air or, freezing cycle with the start up of: in case the fan motor is out of operation or COMPRESSOR shortage of water in the water cooled... - Page 24 Page 24 Page 24 FIG. 3 WATER DRAIN VALVE - EVAPORATOR WATER IN VALVE SWITCH - CONDENSER ELECTR. HOT GAS VALVE TIMER COMPRESSOR RELAYS FAN MOTOR TRIAC TRANSF. WATER PUMP RELAY ELECTRONIC CARD Check to see through the ice discharge interior of the inverted mold cups;...
- Page 25 Page 25 Page 25 The ice making process takes place thereby, and the water drain valves simoultaneously with the water sprayed into the molds that gets activated (Fig. 5). gradually refrigerated by the heat exchange with The electrical components in operation on models the refrigerant flowing into the evaporator are: serpentine.
- Page 26 Page 26 Page 26 FIG. 5 WATER DRAIN VALVE - EVAPORATOR WATER IN VALVE SWITCH - CONDENSER ELECTR. HOT GAS VALVE TIMER COMPRESSOR RELAYS FAN MOTOR TRIAC TRANSF. WATER PUMP RELAY ELECTRONIC CARD • Optical level sensor (IR); place some ice If the ice cubes are shallow and cloudy, it is cubes between IR optical sensing eyes.
- Page 27 Page 27 Page 27 Remove, if fitted, the refrigerant service 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. FIG. 6 WATER DRAIN VALVE - EVAPORATOR WATER IN VALVE...
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Page 28: Freezing Cycle
PRINCIPLE OF OPERATION How it works The freezing cycle is controlled by the evaporator In the SCOTSMAN cube ice makers the water temperature sensor (which has its probe in used to make the ice is kept constantly in contact with the evaporator serpentine) that... - Page 29 Page 29 Page 29 FIG. A FIG. B FIG. D FIG. C...
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Page 30: Harvest Cycle
Page 30 Page 30 In Table B are indicated the various lengths of the the ice maker model with the growing of the ice timed portion of freezing cycle in relation to the thickness with the cubes fully formed in the cup different combinations of the DIP SWITCH KEYS. -
Page 31: Electrical Sequence
Page 31 Page 31 OPERATION - CONTROL SEQUENCE HARVEST (Drain portion - first 15 sec.) At the start of freezing cycle the evaporator tem- Electrical components (Loads) • perature sensor controls the length of the first part Compressor ..........• of the freezing cycle. - Page 32 Page 32 Page 32 The water can be pumped out up to 1.5 m rise PWD SYSTEM (EC version only) HAND DISCONNECT SWITCH WATER VALVE COMPONENTS WATER FILTER The components of the Pump Out Water Drain System are • Sealed water tank POWER •...
- Page 33 Page 33 Page 33 SCHEMATIC SYSTEM Drain fitting Vented tube Storage bin Water level Check sensors valve Drain out Sealed water tank Overflow drain Water tube pump Storage bin drain tube Water tank inlet fitting...
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Page 34: Components Description
Page 34 Page 34 COMPONENTS DESCRIPTION current arriving to the micro processor is such to EVAPORATOR TEMPERATURE cause an immediate and total stop of the machine SENSOR operation. The evaporator temperature sensor probe, located in contact with the evaporator serpentine, detects the dropping of the evaporator tempera- ICE LEVEL THERMAL PROBE ture during the freezing cycle and signals it by... - Page 35 Page 35 Page 35 to control the operation of the different electrical The P.C. BOARD is the brain of the system and components of the ice maker (compressor, water it elaborates, through its micro processor, the pump, solenoid valves, etc.). signals received from the three sensors in order At the end of the 3 minutes the PC Board switch At restart, from any tripping OFF at Bin Full, the...
- Page 36 Page 36 Page 36 PUSH BUTTON OPERATION REASON WHY STATUS DURING WATER FILLING PHASE • Push for more then 2” but less then 5” the ON STEADY UNIT UNDER POWER machine enters in Cleaning Mode • Push for more then 5” the machine by-pass the Water Filling Phase ON STEADY FREEZING CYCLE...
- Page 37 Page 37 Page 37 size of the cubes (Large or Medium) as per the CONDENSER AIR FILTER following setting: (Air cooled version) ON : PROGRAM A Located in front of the air cooled condenser can OFF : PROGRAM B be removed by withdrawing it through the opening OFF OFF : PROGRAM C of the front panel for cleaning or replacing.
- Page 38 Page 38 Page 38 WATER INLET SOLENOID VALVE - and become high pressure hot vapor which is 3/4 MALE FITTING then released through the discharge valve. (AC/EC 47-57-87-107 only) A second water inlet solenoid valve is used on water cooled version. An automatic hi pressure HI PRESSURE CONTROL control activates the coil of the water inlet solenoid (AC/EC 47-57-87-107 only)
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Page 39: Adjustment Of The Cube Size
Page 39 Page 39 ADJUSTMENT PROCEDURES 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 SMALL... -
Page 40: Wiring Diagram Ac-Ec 47-57-87-107-177
Page 40 Page 40 WIRING DIAGRAM AC-EC 47-57-87-107-177 AIR AND WATER COOLED 230/50-60/1 The unit is shown on freezing cycle... - Page 41 Page 41 Page 41...
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Page 42: Service Diagnosis
Moisture in the system Same as above Shortage of refrigerant Check for leaks & recharge Cloudy cubes Shortage of water See remedies for shortage of water Dirty water supply Use water softner or water filter Accumulated impurities Use SCOTSMAN Ice Machine cleaner... - Page 43 Page 43 Page 43 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Shortage of water Water spilling out through curtain Check or replace curtain Water solenoid valve not opening Replace valve Water leak in sump area Locate and repair Water flow control plugged Replace water inlet valve Leak of water drain valve Replace valve...
- Page 44 Page 44 Page 44 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Unit won’t harvest Inoperative P.C.Board Replace P.C.Board Hot gas valve not opening Valve coil with open winding Replace valve Water solenoid valve not opening Valve coil with open winding Replace valve Incorrect discharge pressure Inoperative condenser sensor...
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Page 45: Maintenance And Cleaning Instructions
CLEANING/SANITISING INSTRUCTIONS icemakers. OF WATER SYSTEM Check and clean the water line strainer. Clean-sanitise the water system, evaporator, bin and spray jets using a solution of SCOTSMAN Ice Machine Cleaner/Sanitizer. Check that the icemaker is levelled in side... -
Page 46: Cleaning Instructions Of Water System
(45°- 50°C) with 0,2 liters of Ice Machine Cleaner. Lift up and remove the curtain. 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. -
Page 47: Indice Specifications Ac-Ec
Page 47 Page 47 PUSH BUTTON for more then 2" and less of 5" 15. Switch ON again the machine. The water to put the machine in cleaning mode. 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 NOTE. - Page 48 Page 48 Page 48 Follow the procedures as per cleaning water ATTENTION. In case the ice cubes are pump operation, only by keeping pushed Reset cloudy-white and have an acid taste, melt button between 2 ÷ 5" during water filling. Just them immediately by pouring on them shorting the operation of the water pump to 10 some warm water.
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