Related Manuals for Scotsman AC 45
Summary of Contents for Scotsman AC 45
- Page 1 Page 1 Page 1 SERVICE MANUAL AC 45 AC 55 AC 85 AC 105 AC 125 AC 175 AC 225 Electronic cubers with storage New PC Board version MS 1000.81 REV. 07/2002...
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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 AC 45-55-85-105 Wiring diagram AC 125-175-225 Service diagnosis MAINTENANCE AND CLEANING INSTRUCTIONS General Icemaker Cleaning instructions of water system... -
Page 3: Specifications Ac
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 40 of this manual. - Page 4 Page 4 SPECIFICATIONS Dimensions: HEIGHT 725 mm. WIDTH 457 mm. DEPTH 480 mm. WEIGHT 39 Kgs. AC 45 - CUBER machine specifications Capacity Water req. Model Cond. unit Finish Comp. HP the cold store lt/24 HR AC 45 AS 6...
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Page 5: Specifications Ac
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 40 of this manual. - Page 6 Page 6 Page 6 SPECIFICATIONS Dimensions: HEIGHT 738 mm. WIDTH 457 mm. DEPTH 522 mm. WEIGHT 44 Kgs. AC 55 - CUBER machine specifications Capacity Water req. Model Cond. unit Finish Comp. HP the cold store lt/24 HR AC 55 AS 6 0110 Stainless steel 14 Kg.
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Page 7: Specifications Ac
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 40 of this manual. - Page 8 Page 8 Page 8 SPECIFICATIONS Dimensions: HEIGHT 738 mm. WIDTH 457 mm. DEPTH 522 mm. WEIGHT 44 Kgs. AC 85 - CUBER machine specifications Capacity Water req. Model Cond. unit Finish Comp. HP the cold store lt/24 HR AC 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 40 of this manual.
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Page 10: Front View
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. AC 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 40 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. AC 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 40 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. AC 175 - CUBER machine specifications Ice bin cap. Water requirem Model Cond. Finish Comp.
- Page 15 NOTE . 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 40 of this manual.
- Page 16 Page 16 Page 16 SPECIFICATIONS (CONT'D) FRONT VIEW HEIGHT (without legs) 1006 mm. HEIGHT (with legs) 1126 mm. WIDTH 1078 mm. DEPTH 660 mm. WEIGHT 115 Kgs. AC 225 - CUBER machine specifications Ice bin cap. Water requirem Model Cond. Finish Comp.
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Page 17: 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 AC 45) UNPACKING AND INSPECTION into their seats on the machine base and adjust them to the desired level. -
Page 18: Water Supply And Drain Connections
Page 18 Page 18 Water Cooled Versions - AC 125-175-225 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 19: Installation Practice
12. Has the owner been given the name and 10. Has the owner/user been given the User the phone number of the authorized Manual and been instructed on the importance of SCOTSMAN Service Agency serving him? periodic maintenance checks? INSTALLATION PRACTICE Hand shut-off valve... -
Page 20: Operating Instructions
Page 20 Page 20 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 THE HOT GAS SOLENOID VALVE connections, perform the following “Start-up”... -
Page 21: Water Pump
Page 21 Page 21 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 22 Page 22 Page 22 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 23 Page 23 Page 23 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...
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Page 24: Maintenance And Cleaning Pro- Cedures
Page 24 Page 24 Check the texture of ice cubes just released. NOTE. The ICE LEVEL CONTROL They have to be in the right shape with a small (INFRARED SYSTEM) is independent of the depression of about 5-6 mm in their crown. temperature however, the reliability of its If not, wait for the completion of the second cycle detection can be affected by external light... -
Page 25: Principle Of Operation
Page 25 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 26 Page 26 Page 26 FIG. A FIG. B FIG. C FIG. D...
- Page 27 Page 27 Page 27 FIG. E FIG. F FIG. G FIG. H...
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Page 28: Electronic Timer
Page 28 Page 28 In Table B are indicated the various lengths of the declines gradually - in relation with the growing of the ice thickness - to reach, at the end of the timed portion of freezing cycle in relation to the cycle, approx. -
Page 29: Control Sequence
Page 29 Page 29 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 30: Components Description
Page 30 Page 30 OPERATING CHARACTERISTICS COMPONENTS DESCRIPTION AC 45-55-85-105-125-175 EVAPORATOR TEMPERATURE SENSOR Freeze Cycle The evaporator temperature sensor probe, located in contact with the evaporator serpentine, Average Discharge detects the dropping of the evaporator tempera- Pressure A/C: 9.5÷8.5 bar (130÷110 psig) -
Page 31: Yellow Led
Page 31 Page 31 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 32 Page 32 Page 32 LENGTH OF HARVEST CYCLE RED ALARM LED ON ACCORDING TO THE TIME TO DROP THE Too hi condensing temperature ° ° EVAP. TEMPERATURE FROM 0 C TO -15 RED ALARM LED BLINKING Too hi evaporating temperature LENGTH PROGRAMS HARVEST...
- Page 33 WATER INLET SOLENOID VALVE - HI PRESSURE CONTROL - AC 45-55-85-105 (Water cooled version) 3/4 MALE FITTING (Water cooled version) Used only on the water cooled versions it operates to keep between 9.5 and 10.5 bars (135 ÷...
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Page 34: Adjustment Procedures
Page 34 Page 34 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 35: Wiring Diagram Ac 45-55-85-105
Page 35 Page 35 WIRING DIAGRAM AC 45-55-85-105 AIR & WATER COOLED 230/50-60/1... -
Page 36: Wiring Diagram Ac 125-175-225
Page 36 Page 36 WIRING DIAGRAM AC 125-175-225 AIR & WATER COOLED 230/50-60/1... -
Page 37: 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 38 Page 38 Page 38 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 39 Page 39 Page 39 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 40: 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 41: 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 42 Page 42 Page 42 Sanitation Remove the evaporator cover then slowly pour onto the evaporator platen the cleaning solution. With the help of a brush dissolve the NOTE. Sanitation of the water system is most resistant and remote scale deposits in the recommended to be done once a month.
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