Related Manuals for Scotsman MV 12
Summary of Contents for Scotsman MV 12
- Page 1 Page 1 Page 1 SERVICE MANUAL MV 12 MV 21 MV 32 MV 50 R 404 A VERSION Electronic modular cubers MS 1000.24 REV. 03/00...
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Page 2: Table Of Contents
Control sequence SERVICE SPECIFICATIONS Component Operating characteristics COMPONENT DESCRIPTION Component description 22-23 REMOVAL AND REPLACEMENT PROCEDURES 24-25 WIRING DIAGRAM MV 12-21-32-50 air/water cooled SERVICE DIAGNOSIS Service diagnosis 27-28 MAINTENANCE & CLEANING INSTRUCTION Icemaker Ice storage bin Cabinet erxterior Cleaning (Icemaker) 29-30... -
Page 3: Specifications
Page 3 Page 3 SPECIFICATIONS MODULAR CUBER MV12 ice making capacity AIR COOLED MODELS WATER COOLED MODELS °C °C K g . K g . °C °C WATER TEMPERATURE WATER TEMPERATURE NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic maintenance as outlined on page 29 of this manual. - Page 4 Dimensions: HEIGHT 530 mm. (20" 6/7) WIDTH 560 mm. (22") DEPTH 600 mm. (23 5/8") WEIGHT 52 Kgs. MV 12 - MACHINE SPECIFICATIONS Water req. Model Cond. unit Finish Comp. HP lt/24 HR MV 12 - AS 190* Stainless Steel...
- Page 5 Page 5 Page 5 SPECIFICATIONS MODULAR CUBER MV 21 ice making capacity AIR COOLED MODELS WATER COOLED MODELS °C °C K g . K g . °C °C WATER TEMPERATURE WATER TEMPERATURE NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic maintenance as outlined on page 29 of this manual.
- Page 6 Page 6 Page 6 SPECIFICATIONS (CONT'D) 20 mm - WATER OUTLET 20 mm - WATER OUTLET - WATER COOLED ONLY 3/4" GAS WATER INLET CORD SET Accessoires KSC 18 - Cube stacking kit Dimensions: HEIGHT 530 mm. (20" 7/8) WIDTH 800 mm.
- Page 7 Page 7 Page 7 SPECIFICATIONS MODULAR CUBER MV 32 ice making capacity AIR COOLED MODELS WATER COOLED MODELS °C °C K g . K g . °C °C WATER TEMPERATURE WATER TEMPERATURE NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic maintenance as outlined on page 29 of this manual.
- Page 8 Page 8 Page 8 SPECIFICATIONS (CONT'D) 20 mm - WATER OUTLET 20 mm - WATER OUTLET - WATER COOLED ONLY 3/4" GAS WATER INLET CORD SET Accessoires KSC 25 - Cube stacking kit Dimensions: HEIGHT 680 mm. (26" 3/4) WIDTH 800 mm.
- Page 9 Page 1 Page 9 SPECIFICATIONS MODULAR CUBER MV 50 ice making capacity AIR COOLED MODELS WATER COOLED MODELS °C °C K g . K g . °C °C WATER TEMPERATURE WATER TEMPERATURE NOTE. To keep your Modular cuber performing at its maximum capacity, it is necessary to perform periodic maintenance as outlined on page 29 of this manual.
- Page 10 Page 10 Page 10 SPECIFICATIONS (CONT'D) 20 mm - WATER OUTLET 20 mm - WATER OUTLET - WATER COOLED ONLY 3/4" GAS WATER INLET CORD SET WATER INLET - WATER COOLED ONLY Accessoires KSC 50 - Cube stacking kit Dimensions: HEIGHT 745 mm.
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Page 11: For The Installer
These instructions provide the specifications and STORAGE BIN the step-by-step procedures for the installation, The MV 12 stack on top of Scotsman bin model start up and operation for the SCOTSMAN B 190; the MV 21-32 stack onto SCOTSMAN bin Model MV 12-21-32-50 Modular Cubers. -
Page 12: Select Location
15 cm. minimum left, right, and rear for air-cooled models. STORAGE BIN The SCOTSMAN bins for these units are the B 190, B 390 and B 550. Other bins may be available with bin tops to vary the storage capacity. Lay the bin on its back, using cardboard from the carton to support it, screw in the legs. -
Page 13: For The Plumber
Since water is the most important single ingredient respectively on MV 12, MV 21, on MV 32 and in producing ice you cannot over emphasize the MV 50 located in the bottom for proper conveying, three items listed above. -
Page 14: Final Check List
1 bar without exceeding a maximum of 5 bar. TYPICAL STACKING INSTALLATION KIT STACKING KCS 12: TO STACK 2 MV 12's KIT STACKING KCS 21: TO STACK ON THE MV 21 KIT STACKING KCS 32: TO STACK ON THE MV 32... -
Page 15: Start-Up
Page 15 Page 15 START-UP First freezing time will range between 19 and 22 minutes. Longer time for temperature above 25°C and shorter time required when temperature are below START-UP 25°C. Average complete cycle time is about 22 min. If not yet done remove screws and pull the Front Panel out. - Page 16 Page 16 Page 16 seconds going through a 3' delay time (green LED blinking). NOTE: To assure a correct operation of the machine the water must have a minimum 10. Place again all cabinet panels and screws electrical conductivity of 20 us. previously removed.
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Page 17: Operation
MV 12-21-32 and two thermostatic expansion suction tube, where it is recompressed into valves on model MV 50. The thermostatic expansion valve meters how... -
Page 18: Water System
Page 18 Page 18 FREEZE CYCLE WATER SYSTEM the evaporator surface by gravity. As it flows accross the refrigerated evaporator, some of the A mechanical float valve is used to control the water will be chilled enough to change form, turn level of the water into the reservoir/sump. -
Page 19: Refrigeration System During Harvest
Page 19 Page 19 HARVEST (DEFROST) CYCLE REFRIGERATION SYSTEM SCHEMATIC REFRIGERATION SYSTEM DURING All water remained in the reservoir at the end of HARVEST freezing cycle is pumped-out, to the waste, through the water solenoid and drain line during The refrigeration system performs the harvest of the first 20 seconds of the defrost cycle eliminating ice by use of a hot gas bypass valve. -
Page 20: Control Sequence
Page 20 Page 20 On model MV 50 the release of the ice plate from NOTE: in case of failure of ice level sensor, the second evaporator will cause the restart of the P.C. Board turns - on automatically the the machine in the freezing cycle. -
Page 21: Service Specifications
Cut Out Model freeze freeze Beginning time Beginning Safety freeze freeze freeze freeze MV 12 A 16 bar 14 bar 28 bar 3.1 bar 1.9 bar MV 12 W 17 bar 17 bar 28 bar 3.3 bar 2.2 bar MV 21 A 15.5 bar... -
Page 22: Component Description
Page 22 Page 22 COMPONENT DESCRIPTION Front Console Panel Equipped with four LED plus a warning light that when glow or blink are monitoring: LED N. 1 - RED GLOW - Machine off. Too long defrost cycle. BLINK - Too high condensing temperature. To restart the machine press the reset button. - Page 23 Page 23 Page 23 Compressor Contactor and total stop of the machine operation with the blinking of the Red LED. Located in the control box, the compressor contactor functions to carry the compressor line High Pressure Control current. The contactor is wired to receive power from the P.C.
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Page 24: Removal And Replacement Procedures
Page 24 Page 24 REMOVAL AND REPLACEMENT PROCEDURES CONDENSER - AIR COOLED WARNING - Disconnect electric power 1. Remove both side panels and remove screws supply to icemaker whenever replacement of condenser bracket. procedure are performed. 2. Store most of refrigerant charge in liquid receiver. -
Page 25: Mv 12-21-32-50 Air/Water Cooled
Page 25 Page 25 WATER REGULATING VALVE CAUTION: If the factory seal is broken on (WATER COOLED) the replacement drier, exposing it to the 1. Shut off water. atmosphere more than a few minutes, the 2. Remove front and right side panel. drier will absorb moisture from the atmosphere and lose substantial ability 3. - Page 26 E - End defrosting switch (two on MV 50) O - Max pressure switch signal F - Led card P - Condenser temperature probe G - Electronic card Q - Heating resistance of carter compr. H - Fan motor (one on MV 12 and MV 50) (where used)
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Page 27: Service Diagnosis
Page 27 Page 27 SERVICE DIAGNOSIS The table below is intended as a quick reference Reference to other portions of this manual, to aid the Service Agent in determining the cause inclusing wiring diagrams, installation, and of a particular type of malfunction, as well as the operation are recommended to better determine recommended repair. - Page 28 Page 28 Page 28 SERVICE DIAGNOSIS SYMPTOM POSSIBLE CAUSE CORRECTION Low ice capacity. High discharge pressure Evacuate and weigh due to not-condensable in charge. or overcharge. Inefficient compressor. Replace. Condenser dirty. Clean. Low water flow Check and repair. (Water-cooled). High air temperature Check temperature of air (air-cooled).
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Page 29: Icemaker
Yellow LED (slow blink). and visual inspection of the water system parts, evaporator plates and the sump Pour 100 cc on MV 12, 200 cc on MV 21-32 assembly before and after cleaning will indi- cate frequency and procedure to be followed and 400 cc on MV 50 of Scotsman Ice Machine in local areas. - Page 30 Page 30 Page 30 Pushing the RESET BUTTON for 6-8 NOTE: RINSING mode consists of: seconds the machine restarts in the freezing cycle. a) energize the water drain valve and the water pump for 30 seconds to empty the Replace the evaporator cover deflector and reservoir front panel.