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R 134 A / R 404 A VERSION
Electronic modular
SCOTSMAN EUROPE - FRIMONT SPA
Via Puccini, 22 - 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.com
E-Mail: scotsman.europe@frimont.it
SERVICE MANUAL
MF 26
MF 36
MF 46
MF 56
MF 66
flakers and
superflakers
MS 1000.20 REV. 10/2008
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Table of Contents
Related Manuals for Scotsman MF 26
Summary of Contents for Scotsman MF 26
- Page 1 R 134 A / R 404 A VERSION Electronic modular flakers and superflakers SCOTSMAN EUROPE - FRIMONT SPA Via Puccini, 22 - 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.com...
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Page 2: Table Of Contents
Page 1 Table of contents page TABLE OF Specifications MF 26 CONTENTS Specifications MF 36 Specifications MF 46 Specifications MF 56 Specifications MF 66 GENERAL INFORMATION AND INSTALLATION Introduction Unpacking and Inspection - Ice maker Unpacking and Inspection - Storage bin... -
Page 3: Specifications Mf
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 FLAKER at peak performance levels, periodic maintenance checks must be carried out as indicated on maintenance section of this manual. - Page 4 HEIGHT (less legs) 525 mm. HEIGHT (with legs) 542 mm. WIDTH 563 mm. DEPTH 536 mm. WEIGHT 49 Kg. MF 26 - MACHINE SPECIFICATIONS Water req. Model Cond. unit Comp. HP Finish lt/24 HR MF 26 AS 120* S. Steel...
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Page 5: Specifications Mf
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 FLAKER at peak performance levels, periodic maintenance checks must be carried out as indicated on maintenance section of this manual. - Page 6 Page 5 SPECIFICATIONS Dimensions: HEIGHT (less legs) 525 mm. HEIGHT (with legs) 542 mm. WIDTH 563 mm. DEPTH 536 mm. WEIGHT 49 Kg. MF 36 - MACHINE SPECIFICATIONS Water req. Model Cond. unit Comp. HP Finish lt/24 HR MF 36 AS 200* S.
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Page 7: Specifications Mf
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 FLAKER at peak performance levels, periodic maintenance checks must be carried out as indicated on maintenance section of this manual. - Page 8 Page 7 SPECIFICATIONS Dimensions: HEIGHT (less legs) 645 mm. HEIGHT (with legs) 650 mm. WIDTH 535 mm. DEPTH 660 mm. WEIGHT 77 Kg. MF 46 - MACHINE SPECIFICATIONS Water req. Model Cond. unit Finish Comp. HP lt/24 HR MF 46 AS 320* S.
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Page 9: Specifications Mf
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 FLAKER at peak performance levels, periodic maintenance checks must be carried out as indicated on maintenance section of this manual. - Page 10 Page 9 SPECIFICATIONS Dimensions: HEIGHT (less legs) 785 mm. HEIGHT (with legs) 790 mm. WIDTH 535 mm. DEPTH 660 mm. WEIGHT 93 Kg. MF 56 - MACHINE SPECIFICATIONS Water req. Model Cond. unit Comp. HP Finish lt/24 HR MF 56 AS 600* S.
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Page 11: Specifications Mf
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 FLAKER at peak performance levels, periodic maintenance checks must be carried out as indicated on maintenance section of this manual. - Page 12 Page 11 SPECIFICATIONS Dimensions: HEIGHT 850 mm. WIDTH 1065 mm. DEPTH 698 mm. WEIGHT 179 Kg. MF 66 - MACHINE SPECIFICATIONS Water req. Model Cond. unit Comp. HP Finish lt/24 HR MF 66 AS 1150* S. Steel MF 66 WS Water 8000* Basic electr.
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Page 13: General Information And Installation
Page 12 GENERAL INFORMATION AND INSTALLATION INTRODUCTION On models MF 26, MF 36, MF 46 and MF 56 remove the top and front panel while on model MF 66 remove top and sides panels of the unit This manual provides the specifications and the and inspect for any concealed damage. -
Page 14: Location And Levelling
Do not put any stiffeners crossing the ice misuse under the terms of the SCOTSMAN drop opening. Manufacturer’s Limited Warranty resulting in LOSS of warranty coverage. -
Page 15: Electrical Connections
Remove the tape and fasten the catch using the two self-tapping screws supplied. WATER SUPPLY - WATER COOLED MODELS The water cooled versions of SCOTSMAN Ice Makers require two separate inlet water supplies, ELECTRICAL CONNECTIONS one for the water making the flaker ice and the other for the water cooled condenser. -
Page 16: Installation Practice
Have the bin liner and cabinet been wiped clean? 12. Has the owner been given the name and the phone number of the authorized SCOTSMAN Service Agency serving him? 10. Has the owner/user been given the User G. INSTALLATION PRACTICE 1. -
Page 17: Operating Instructions
Page 16 OPERATING INSTRUCTIONS Elapsed the stand by period the unit starts START UP operating with the activation in sequence of the following assemblies: After having correctly installed the ice maker and completed the plumbing and electrical GEAR MOTOR/S connections, perform the following “Start-up” pro- COMPRESSOR cedure. - Page 18 Page 17 FIG. 2 WATER LEVEL RESET GEAR MOTOR ROTATION CONTACTOR COIL RELAYS CONDENSER TEMP. T 40÷50°C EVAPORATOR TEMP. GEAR MOTOR ICE LEVEL CONTROL TRIAC FAN MOTOR TRANSF. ELECTRONIC CARD FIG. 3 WATER LEVEL RESET GEAR MOTOR ROTATION CONTACTOR COIL RELAYS CONDENSER TEMP.
- Page 19 Page 18 NOTE. On air cooled models, the condenser NOTE. If, after ten minutes from the compressor start-up, the evaporating tem- temperature sensor, which is located within perature has not dropped down to a value the condenser fins, keeps the head °...
- Page 20 Page 19 This will cause a gradual decrease of the water After 3 minutes the unit resumes its total operation level in the float reservoir and as soon as the with the immediate start-up of the gear motor level gets below the two vertical metal pins, the and, few seconds later, of the compressor.
- Page 21 Page 20 NOTE. The ICE LEVEL CONTROL NOTE. In the front of the PC Board is located (INFRARED SYSTEM) is independent of the a small I/R Trimmer directly connected with temperature however, the reliability of its the optical Ice level control. By means of its detection can be affected by external light screw it is possible to modify the signal radiations or by any sort of dirt and scale...
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Page 22: Principle Of Operation (How It Works)
Page 21 PRINCIPLE OF OPERATION WATER CIRCUIT MF 26-36 ICE SPOUT The water enter in the machine through the water inlet fitting which incorporates a strainer - FLOAT TANK located at the rear side of the cabinet - then it... -
Page 23: Refrigerant Circuit
MF 66), the unit stops after six seconds 8.5 bar (120 psig) on MF 26 and of 17 bar (compressor first and 3' later the gear reducer), (240 psig) on MF 36, MF 46, MF 56 and MF 66... - Page 24 - on the value of AMBIENT TEMPERATURE HIGHER THEN ÷ ° ° 0.5 bar (7 psig) on MF 26 and of 2.4 2.6 bar C (110 ÷ 36 psig) on MF 36, MF 46, MF 56 and it causes the total and immediate SHUT-OFF MF 66 after few minutes from the unit start-up.
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Page 25: Mechanical System
MECHANICAL SYSTEM restart the unit it is necessary to press the RE-SET push button or switch OFF and ON The mechanical system of the SCOTSMAN the power line main disconnnect switch Flaker machines consists basically of a gear (Fig. 7). -
Page 26: Operating Pressures
NOTE. Before charging the refrigerant system Air cooled Water cooled always check the type of refrigerant and quantity as specified on the individual ice machine MF 26 440 gr 400 gr dataplate. The refrigerant charges indicated are relatives to averages operating conditions. -
Page 27: Components Description
Page 26 COMPONENTS DESCRIPTION In the event the condenser temperature rises ° ° and reaches 60 C or 70 C according to the EVAPORATOR TEMPERATURE setting of DIP SWITCH number 8 the current SENSOR arriving to the micro processor is such to cause an immediate and total stop of the machine operation. - Page 28 Page 27 infrared sensor of ice level control - YELLOW LED YELLOW LED blinks fast) 6 seconds later the ice machine resumes Unit shut-off due to a its operation with the simul-taneous extinguishing too lo-water level into the 2nd YELLOW LED. float tank RED LED P.C.
- Page 29 The ice breaker is fitted in the freezer upper part • Jump OUT = 60' it has, on MF 26-36 Model, two breaker teeth to break the ice and with its slanted shape from the rear tooth to the front one it compacts and forces INTERFACE P.C.
- Page 30 Page 29 FAN MOTOR (Air cooled version) As pressure increases, the water regulating valve opens to increase the flow of cooling The fan motor is controlled through the TRIAC of water. the P.C. BOARD by the condenser temperature sensor. Normally it operates to draw cooling air through the condenser fins.
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Page 31: Adjustment, Removal And Replacement Procedures
REPLACEMENT OF THE GEAR MOTOR NOTE. Read the instructions throughly MAGNETIC SENSOR before performing any of the following On MF 26, MF 36, MF 46 and MF 56 adjustment or removal and replacement pro- remove the front/top and side/rear panels and cedure. -
Page 32: Replacement Of The Gear Motor Assy
MF 26-36 using a suitable lenght and size wooden dowel or stick inserted through the top of the On MF 26-36, MF 46 and MF 56 remove the open freezer, tap the lower half of the water seal front/top and side/rear panels and on MF 66 and the lower bearing out the bottom of the remove the front, rear, top and left side panels. -
Page 33: Replacement Of The Freezing Cylinder
Page 32 Follow the steps of item E to remove the Unsolder and disconnect the capillary tube gear motor magnetic sensor. and the accumulator/suction line assy from the outlet line of the freezing cylinder. Trace and disconnect the electric wires leads of the drive motor. -
Page 34: Wiring Diagram
Page 35 WIRING DIAGRAM MF 26-36 AIR AND WATER COOLED 230/50/1 GV - YELLOW GREEN B - WHITE G - GREY N - BLACK A - BLUE M - BROWN V - GREEN... - Page 35 Page 36 WIRING DIAGRAM MF 46 - MF 56 AIR AND WATER COOLED SINGLE PHASE GV - YELLOW GREEN B - WHITE G - GREY N - BLACK A - BLUE M - BROWN V - GREEN...
- Page 36 Page 37 WIRING DIAGRAM MF 56 AIR AND WATER COOLED GV - YELLOW GREEN THREE PHASE B - WHITE G - GREY N - BLACK A - BLUE M - BROWN V - GREEN...
- Page 37 Page 38 WIRING DIAGRAM MF 66 AIR AND WATER COOLED GV - YELLOW GREEN B - WHITE THREE PHASE G - GREY N - BLACK A - BLUE M - BROWN V - GREEN...
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Page 38: Service Diagnosis
Page 39 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Unit will not run Blown fuse in P.C.Board Replace fuse & check for cause of No LED lighted-on blown fuse Master switch in OFF position Turn switch to ON position Inoperative P.C.Board Replace P.C.Board Loose electrical connections Check wiring... - Page 39 Page 40 SERVICE DIAGNOSIS SYMPTON POSSIBLE CAUSE SUGGESTED CORRECTION Wet ice Ambient temperature too high Move unit to cooler location Under or overcharge of refrigerant Recharge with correct quantity High water level in the freezer Lower to approx. 20 mm below ice spout Faulty compressor Replace...
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Page 40: Maintenance And Cleaning Instructions
SCOTSMAN Cleaner plain. With the ice machine and fan motor OFF on air cooled models, clean condenser using vacuum... - Page 41 (45°-50°C) with a 0,2-0,3 liters of 12. Stop the icemaker and pour warm water on the ice deposited into the storage bin to melt it up. SCOTSMAN Ice Machine Cleaner (on MF 66 double the quantities). NOTE. DO NOT use ice produced with the cleaning solution.