Related Manuals for Scotsman EC 45
Summary of Contents for Scotsman EC 45
- Page 1 Page 1 Page 1 SERVICE MANUAL EC 45 EC 55 EC 85 EC 105 EC 125 EC 175 Electronic cubers with storage and PWD system MS 1000.81 REV. 06/2002...
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Page 2: Table Of Contents
OPERATING PRINCIPLES (How it works) Freezing cycle Harvest cycle Control sequence Component description ADJUSTMENT, REMOVAL AND REPLACEMENT PROCEDURES Adjustment of the cube size Wiring diagram EC 45-55-85-105 Wiring diagram EC 125-175 Service diagnosis MAINTENANCE AND CLEANING INSTRUCTIONS General Icemaker Cleaning instructions of water system... -
Page 3: Specifications Ec
The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 41 of this manual. - Page 4 Page 4 SPECIFICATIONS Dimensions: HEIGHT 725 mm. WIDTH 457 mm. DEPTH 480 mm. WEIGHT 39 Kgs. EC 45 - CUBER machine specifications Capacity Water req. Model Cond. unit Finish Comp. HP the cold store lt/24 HR EC 45 AS 6...
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Page 5: Specifications Ec
The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 41 of this manual. - Page 6 Page 6 Page 6 SPECIFICATIONS Dimensions: HEIGHT 738 mm. WIDTH 457 mm. DEPTH 522 mm. WEIGHT 44 Kgs. EC 55 - CUBER machine specifications Capacity Water req. Model Cond. unit Finish Comp. HP the cold store lt/24 HR EC 55 AS 6 0110 Stainless steel 14 Kg.
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Page 7: Specifications Ec
The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 41 of this manual. - Page 8 Page 8 Page 8 SPECIFICATIONS Dimensions: HEIGHT 738 mm. WIDTH 457 mm. DEPTH 522 mm. WEIGHT 44 Kgs. EC 85 - CUBER machine specifications Capacity Water req. Model Cond. unit Finish Comp. HP the cold store lt/24 HR EC 85 AS 0140 Stainless steel 14 Kg.
- Page 9 The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 41 of this manual.
- Page 10 Page 10 Page 10 SPECIFICATIONS (CONT'D) FRONT VIEW HEIGHT (without legs) 813 mm. HEIGHT (with legs) 950 mm. WIDTH 535 mm. DEPTH 534 mm. WEIGHT 44 Kgs. EC 105 - CUBER machine specifications Ice bin cap. Water requirem Model Cond. Finish Comp.
- Page 11 The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 41 of this manual.
- Page 12 Page 12 Page 12 SPECIFICATIONS (CONT'D) FRONT VIEW HEIGHT (without legs) 900 mm. HEIGHT (with legs) 1020 mm. WIDTH 675 mm. DEPTH 520 mm. WEIGHT 75 Kgs. EC 125 - CUBER machine specifications Ice bin cap. Water requirem Model Cond. Finish Comp.
- Page 13 The daily ice-making capacity is directly related to the condenser air inlet temperature, water temperature and age of the machine. To keep your SCOTSMAN CUBER at peak performance levels, periodic maintenance checks must be carried out as indicated on page 41 of this manual.
- Page 14 Page 14 Page 14 SPECIFICATIONS (CONT'D) FRONT VIEW HEIGHT (without legs) 900 mm. HEIGHT (with legs) 1020 mm. WIDTH 675 mm. DEPTH 520 mm. WEIGHT 75 Kgs. EC 175 - CUBER machine specifications Ice bin cap. Water requirem Model Cond. Finish Comp.
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Page 15: General Information And Installation
Forward the completed self-addressed in the manner outlined in this manual. registration card to Frimont factory. 11. If necessary, fit the four legs (not on EC 45) UNPACKING AND INSPECTION into their seats on the machine base and adjust them to the desired level. -
Page 16: Water Supply And Drain Connections
Page 16 Page 16 Water Cooled Versions - EC 125-175 All SCOTSMAN ice machines are supplied from the factory completely pre-wired and require only The water cooled versions require two separate electrical power connections to the wire cord inlet water supplies, one for water sprayed for provided at rear of the unit. -
Page 17: Final Check List
Has the water supply pressure been 12. Has the owner been given the name and the checked to ensure a water pressure of at least phone number of the authorized SCOTSMAN 1 bar (14 psi). Service Agency serving him? INSTALLATION PRACTICE... -
Page 18: Operating Instructions
Page 18 Page 18 OPERATING INSTRUCTIONS START UP During the water filling phase the components energized are: After having correctly installed the ice maker and THE WATER INLET SOLENOID VALVE completed the plumbing and electrical connections, perform the following “Start-up” pro- THE HOT GAS SOLENOID VALVE cedure. -
Page 19: Operational Checks
Page 19 Page 19 At completion of the water filling phase (5 minutes) the unit passes automatically into the In case of condenser clogging such to prevent freezing cycle with the start up of: the proper flow of the cooling air or, in case the fan motor is out of operation or shortage COMPRESSOR of water in the water cooled condenser, the... - Page 20 Page 20 Page 20 FIG. 3 WATER DRAIN VALVE - EVAPORATOR WATER IN VALVE SWITCH - CONDENSER ELECTR. HOT GAS VALVE TIMER - AMBIENT CONTACTOR COIL RELAYS FAN MOTOR TRIAC TRANSF. WATER PUMP RELAY ELECTRONIC CARD Check to see through the ice discharge interior of the inverted mold cups;...
- Page 21 Page 21 Page 21 After about 17÷20 minutes from the begin- The ice making process takes place thereby, ning of the freezing cycle, in an hypothetic with the water sprayed into the molds that gets ambient temperature of 21°C, the defrost cycle gradually refrigerated by the heat exchange with takes place with the hot gas, the water inlet the refrigerant flowing into the evaporator...
- Page 22 Page 22 Page 22 As soon as the water into the Sealed Water If not, wait for the completion of the second cycle Reservoir reaches the maximum level, the two before performing any adjustment. metal pins close the electrical contact through If the ice cubes are shallow and cloudy, it is the water, transmitting a low voltage current to possible that the ice maker runs short of water...
- Page 23 Page 23 Page 23 Remove, if fitted, the refrigerant service NOTE. The ICE LEVEL CONTROL gauges and re-fit the unit service panels (INFRARED SYSTEM) is independent of previously removed. the temperature however, the reliability of its detection can be affected by external light radiations or by any sort of dirt and scale Instruct the owner/user on the general sediment which may deposit directly on the...
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Page 24: Freezing Cycle
Page 24 Page 24 PRINCIPLE OF OPERATION How it works In the SCOTSMAN cube ice makers the water NOTE. The change of the electric potential used to make the ice is kept constantly in of the evaporator sensor with the consequent... - Page 25 Page 25 Page 25 FIG. A FIG. B FIG. C FIG. D...
- Page 26 Page 26 Page 26 FIG. E FIG. F FIG. G FIG. H...
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Page 27: Harvest Cycle
Page 27 Page 27 and between 9.5 and 10.5 bar (135÷150 psig) in DEFROST OR HARVEST CYCLE (Fig.E and G) the water cooled version, being controlled by the As the electronic timer has carried the system temperature sensor probe located within the throughout the second phase of freezing cycle, condenser fins (air cooled version) or, on the the defrost cycle starts. - Page 28 Page 28 Page 28 PWD SYSTEM of the water contained into the Sealed Water COMPONENTS Reservoir. The components of the Pump Out Water Drain System are • Sealed water tank • Special Interface PC Board & Sensor • Special Sealed Water Pump •...
- Page 29 Page 29 Page 29 A Check Valve, located on the water drain hose, The Special Interface PC Board is equipped with prevents the coming back of the discharged a "trimmer" that can be adjusted accordingly to water. the different electrical conductivity of the water. TRIMMER WATER SENSIVITY...
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Page 30: Control Sequence
Page 30 Page 30 OPERATION - CONTROL SEQUENCE TIMED FREEZE At the start of freezing cycle the evaporator Electrical components (Loads) temperature sensor controls the length of the first • Compressor ..........part of the freezing cycle. As it reaches a •... -
Page 31: Component Description
LED OFF - the P.C.Board switches OFF the Air cooled Water cooled machine with the BLINKING of WARNING RED LED. EC 45 250 gr (9.0 oz.) 250 gr (9.0 oz.) EC 55 260 gr (9.3 oz.) 250 gr (9.0 oz.) EC 85 290 gr (10.2 oz.) - Page 32 Page 32 Page 32 printed circuits one at high and the other at low The 60 seconds of delay prevent that an ice voltage integrated with two fuses one on power scoop movement or the ice dropping through the in (32mA) and one on power out (6.3 A), of four ice chute (interrupting for a while the light beam) aligned LEDS monitoring the operation of the can stop the operation of the unit.
- Page 33 Page 33 Page 33 RED ALARM LED ON DIP SWITCH Too hi condensing temperature The P.C.BOARD which controls the entire RED ALARM LED BLINKING operation of the ice maker, has a DIP SWITCH Too hi evaporating temperature with ten switching keys which allow to set up the micro processor program in order to extend YELLOW FREEZING CYCLE ON or to shorten the length of freezing cycle in...
- Page 34 SENSIVITY OPTICAL TRANSFORMER OPTICAL TRANSFORMER CONNECTOR HI PRESSURE CONTROL - EC 45-55-85-105 IN OR OUT IN OR OUT (Water cooled version) A second trimmer is used to increase the signal Used only on the water cooled versions it operates to keep between 9.5 and 10.5 bars (135 ÷ 150...
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Page 35: Adjustment Of The Cube Size
Page 35 Page 35 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 36: Wiring Diagram Ec 45-55-85-105
Page 36 Page 36 WIRING DIAGRAM EC 45/55/85/105 AIR & WATER COOLED 230/50-60/1... -
Page 37: Wiring Diagram Ec 125-175
Page 37 Page 37 WIRING DIAGRAM EC 125/175 AIR & WATER COOLED 230/50-60/1... -
Page 38: 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 39 Page 39 Page 39 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 40 Page 40 Page 40 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 41: Maintenance And Cleaning Instructions
Clean the water system, evaporator, bin Check the ice level control sensor to test and spray jets using a solution of SCOTSMAN shut-off. Put your hand between the light source and the receiver so to cut off the light beam for at Ice Machine Cleaner. -
Page 42: Cleaning Instructions Of Water System
Cleaning Prepare the cleaning solution by diluting in a plastic container two liters of warm water (45°- 50°C) with a 0,2 liters of SCOTSMAN Ice Machine Cleaner. WARNING. The SCOTSMAN Ice Machine Cleaner contains Phosphoric Hydroxyacetic acids. - Page 43 Page 43 Page 43 Remove the evaporator cover then slowly Sanitation pour onto the evaporator platen the cleaning solution. With the help of a brush dissolve the most resistant and remote scale deposits in the NOTE. Sanitation of the water system is platen.