Scotsman EC 106 Service Manual
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Scotsman EC 106 Service Manual

Scotsman EC 106 Service Manual

Electronic cubers with storage
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Page 1
EC 106
EC 126
EC 126 (R404a) from s.n. 06986
EC 176
EC 176 (R404a) from s.n. 11170
EC 206
EC 226
Electronic cubers with storage
New PC Board version
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
Page 1
REV. 11/2016

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Summary of Contents for Scotsman EC 106

  • Page 1 Page 1 Page 1 SERVICE MANUAL EC 106 EC 126 EC 126 (R404a) from s.n. 06986 EC 176 EC 176 (R404a) from s.n. 11170 EC 206 EC 226 Electronic cubers with storage New PC Board version Scotsman Ice Srl Via Lainate, 31 - 20010 Pogliano M.se - Milano - Italy Tel.
  • Page 2 DIP SWITCH FACTORY SETTING COMBINATIONS (PER MODEL AND VERSION) COMBINAISON DES COMMUTATEURS NUMERIQUES DU DIP SWITCH POUR MODELES ET VERSIONS REGOLAZIONE TASTI DIP SWITCH PER MODELLO E VERSIONE FREEZING CYCLE DEFROST CYCLE 15/30" CYCLE DE CONGÉLATION AIR/EAU CYCLE DE DÉMOULAGE CICLO CONGELAMENTO CICLO SBRINAMENTO ARIA/ACQUA...
  • Page 3 DIP SWITCH FACTORY SETTING COMBINATIONS (PER MODEL AND VERSION) COMBINAISON DES COMMUTATEURS NUMERIQUES DU DIP SWITCH POUR MODELES ET VERSIONS REGOLAZIONE TASTI DIP SWITCH PER MODELLO E VERSIONE FREEZING CYCLE DEFROST CYCLE 15/30" CYCLE DE CONGÉLATION AIR/EAU CYCLE DE DÉMOULAGE CICLO CONGELAMENTO ARIA/ACQUA CICLO SBRINAMENTO...

  • Page 4: Table Of Contents

    Electrical sequence Components description ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES Adjustment of the cube size Wiring diagram EC 106 - EC 126 - EC 176 - EC 206 - EC 226 Wiring diagram ECS 126 -176 Service diagnosis MAINTENANCE AND CLEANING INSTRUCTIONS...
  • Page 5 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 6 HEIGHT (without legs) 840 mm. HEIGHT (with legs) 930 mm. WIDTH 531 mm. DEPTH 600 mm. WEIGHT 47 Kgs. EC 106 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 106 AS 6...
  • Page 7 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 8 Page 6 Page 6 SPECIFICATIONS Dimensions: HEIGHT (without legs) 920 mm. “ HEIGHT (with legs) 1010 mm. WIDTH 680 mm. DEPTH 600 mm. WEIGHT 75 Kgs. EC 126 - CUBER (R134a version) machine specifications Water req. Model Cond. unit Finish Comp.
  • Page 9 Page 7 Page 7 SPECIFICATIONS Dimensions: HEIGHT (without legs) 920 mm. “ HEIGHT (with legs) 1010 mm. WIDTH 680 mm. DEPTH 600 mm. WEIGHT 75 Kgs. EC 126 - CUBER (R404a version) machine specifications Water req. Model Cond. unit Finish Comp.
  • Page 10 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 11 Page 9 Page 9 SPECIFICATIONS Dimensions: HEIGHT (without legs) 990 mm. “ HEIGHT (with legs) 1090 mm. WIDTH 680 mm. DEPTH 600 mm. WEIGHT 80 Kgs. EC 176 - CUBER (R134a version) machine specifications Water req. Model Cond. unit Finish Comp.
  • Page 12 Page 10 Page 10 SPECIFICATIONS Dimensions: HEIGHT (without legs) 990 mm. “ HEIGHT (with legs) 1090 mm. WIDTH 680 mm. DEPTH 600 mm. WEIGHT 80 Kgs. EC 176 - CUBER (R404a version) machine specifications Water req. Model Cond. unit Finish Comp.
  • Page 13 Production charts shown indicate the production of ACM models; ice production of ACL and ACS models is 10% lower. 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 14 Page 12 Page 12 SPECIFICATIONS Dimensions: HEIGHT (without legs) 779 mm. HEIGHT (with legs) 859 mm. WIDTH 1250 mm. DEPTH 620 mm. WEIGHT 115 Kgs. EC 206 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 206 AS 6 280*...
  • Page 15 Production charts shown indicate the production of ACM models; ice production of ACL and ACS models is 10% lower. 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 14 Page 14 SPECIFICATIONS Dimensions: HEIGHT (without legs) 1005 mm. HEIGHT (with legs) 1085 mm. WIDTH 1078 mm. DEPTH 715 mm. WEIGHT 120 Kgs. EC 226 - CUBER machine specifications Water req. Model Cond. unit Finish Comp. HP Capacity lt/24 HR EC 226 AS 6 330*...

  • Page 17: General Information And Installation

    Extended periods of operation at temperatures exceeding the following limitations will constitute misuse under the terms of the SCOTSMAN Manufacturer’s Limited Warranty resulting UNPACKING AND INSPECTION in LOSS of warranty coverage.

  • Page 18: 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 Is there at least a 15 cm (6") clearance...

  • Page 19: Installation Practice

    Have the bin liner and cabinet been wiped 12. Has the owner been given the name and clean? the phone number of the authorized SCOTSMAN 10. Has the owner/user been given the User Service Agency serving him? INSTALLATION PRACTICE...

  • Page 20: Operating Instructions

    Unit will start THE WATER DRAIN SOLENOID VALVE (Not up in charging cycle mode. on EC 106). NOTE. If in the 5 minutes lenght of the water NOTE. Every time the unit returns under...

  • Page 21: Operational Checks

    (condensing) pressure between 8.5 and 9.5 cycle. bar (110 ÷ 130 psig) on model EC 106, EC 126 The machine restarts with the usual 5 minutes and EC 176 and between 15-17 bar (220-245...
  • Page 22 Page 20 Page 20 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 23 (P.C.BOARD) in order to activate an electronic timer. This one takes on the first 15 seconds on models EC 106, over the control of the freezing cycle up to the EC 126 & EC 176 and 30 seconds on models complete formation of the ice cubes.
  • Page 24 Page 22 Page 22 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 If the ice cubes are shallow and cloudy, it is NOTE.
  • Page 25 Page 23 Page 23 Instruct the owner/user on the general Remove, if fitted, the refrigerant service operation of the ice machine and about the gauges and re-fit the unit service panels cleaning and care it requires. previously removed. FIG. 6 WATER DRAIN VALVE - EVAPORATOR WATER IN VALVE...

  • Page 26: Freezing Cycle

    Page 24 PRINCIPLE OF OPERATION How it works In the SCOTSMAN cube ice makers the water The freezing cycle is controlled by the evaporator used to make the ice is kept constantly in temperature sensor (which has its probe in...
  • Page 27 Page 25 Page 25 FIG. A FIG. B FIG. C FIG. D...
  • Page 28 Page 26 Page 26 FIG. E FIG. F FIG. G FIG. H...

  • Page 29: Harvest Cycle

    CLOGGED CONDENSER (Air cooled version) INSUFFICIENT FLOW OF COOLING WATER PUMP WATER (Water cooled version) on the first 15 seconds (EC 106 - EC 126 - EC 176) FAN MOTOR OUT OF OPERATION (Air or 30 seconds (EC 206-226 only). cooled version)

  • Page 30: Electrical Sequence

    • Water Inlet Valve ........electronic timer which takes over the control of • Water Drain valve (Not on EC 106) ..the freezing cycle for a pre-fixed time according • P.C.Board Relay 1 & 2 Coil ....to the DIP SWITCH keys setting (see Tab. B).
  • Page 31 Page 29 Page 29 The water can be pumped out up to 1.5 m rise PWD SYSTEM HAND DISCONNECT SWITCH WATER VALVE COMPONENTS WATER FILTER The components of the Pump Out Water Drain System are • Sealed water tank POWER •...
  • Page 32 Page 30 Page 30 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...

  • Page 33: Components Description

    Air cooled Water cooled supplies power to the electronic timer built into the P.C. BOARD so that it takes control of the last EC 106 320 gr (11.0 oz.) 250 gr ( 9.0 oz.) portion of freezing cycle. EC 126 450 gr (16.0 oz.)
  • Page 34 Page 32 Page 32 terminals for the leads of the sensor probes and P.C. BOARD (Data processor) input and output terminals for the leads of the ice The P.C. BOARD, fitted in its plastic box located maker electrical wires. in the front of the unit, consists of two separated The P.C.
  • Page 35 Page 33 Page 33 PUSH BUTTON OPERATION STATUS REASON WHY 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 36 Page 34 Page 34 size of the cubes (Large or Medium) as per the EXTERNAL SWITCHES SOCKET following setting: Connected to the external Green Master and Red ON : PROGRAM A Alarm Reset Switches, it receives power from the OFF : PROGRAM B Master Switch as well as it provides power to the OFF OFF : PROGRAM C Red Alarm switch in order to signal any possible...
  • Page 37 9.5 and 10.5 bars (135 ÷ 150 WATER INLET SOLENOID VALVE - psig) the hi-side or discharge pressure of the 3/4 MALE FITTING (EC 106 water cooled version only) refrigerant system by energizing the coil of the...

  • Page 38: Adjustment Of The Cube Size

    Page 36 Page 36 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 39: Wiring Diagram Ec 106 - Ec 126 - Ec 176 - Ec 206 - Ec 226

    Page 37 Page 37 WIRING DIAGRAM EC 106-126-176-206-226 AIR AND WATER COOLED 230/50-60/1 The unit is shown on freezing cycle...

  • Page 40: Wiring Diagram Ecs 126 -176

    Page 38 Page 38 WIRING DIAGRAM ECS 126 - 176 AIR AND WATER COOLED 230/50-60/1 The unit is shown on freezing cycle EASY FIT MODEL AIR COOLED MODEL...

  • Page 41: 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 42 Page 40 Page 40 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 43 Page 41 Page 41 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...

  • Page 44: Maintenance And Cleaning Instructions

    EC 106-126-176 A. ICEMAKER CLEAN - REPLACE OF AIR The following maintenance should be scheduled CONDENSER FILTER at least two times per year on these icemakers.

  • Page 45: Cleaning Instructions Of Water System

    OF WATER SYSTEM seat and take it out to clean it separately. Clean-sanitise the water system, evaporator, bin and spray jets using a solution of SCOTSMAN Ice Machine Cleaner/Sanitizer. NOTE. Cleaning requirements vary according to the local water conditions and individual user operation.

  • Page 46: Icemaker Ec 206-226

    20 minutes then unplug again the Clean the water system, evaporators, bin machine. and spray bar/s using a solution of SCOTSMAN Ice Machine Cleaner. NOTE. The amount of Cleaner and the time Refer to procedure C cleaning instructions and...

  • Page 47: Cleaning Instructions Of Water System

    Check for water leaks and tighten drain line two or three liters of warm water (45°-50°C) with connections. Pour water down through the a 0,2-0,3 liters of SCOTSMAN Ice Machine storage bin drain line to be sure that drain line is Cleaner. open and clear.
  • Page 48 Page 46 Page 46 During the Water Filling Phase push RESET cavity two or three liters of clean potable water BUTTON for more then 2” but less then 5” the with a capfull of antibacteria solution to rinse and machine enter in Cleaning Mode (Fig.7) sanitize the mold cups and the platen.
  • Page 49 Page 47 Page 47 18. Wipe clean and rinse the inner surfaces of button between 2 ÷ 5" during water filling. Just the storage bin. shorting the operation of the water pump to 10 minutes. REMEMBER. To prevent the accumulation 21.

This manual is also suitable for:

Ec 126Ec 176Ec 206Ec 226

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