Scotsman MCM1062 Manual
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Scotsman MCM1062 Manual

Scotsman MCM1062 Manual

Scotsman mcm1062 ice machine: user guide
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INTRODUCTION
This manual is intended as a reference for the
installation of a Scotsman ice maker model
MCM1062.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Environmental Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
For the Installer
Machine & Bin Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Service Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

TABLE OF CONTENTS

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
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Summary of Contents for Scotsman MCM1062

  • Page 1: Table Of Contents

    INTRODUCTION This manual is intended as a reference for the installation of a Scotsman ice maker model MCM1062. Specifications ........2 Environmental Limitations .

  • Page 2: Specifications

    MCM1062W SPECIFICATIONS Always refer to the nameplate, located on the back of the cabinet, for the: model number, serial number, basic electrical requirements, minimum circuit ampacity, maximum fuse size, and refrigerant charge. A serial number plate with the model number, serial number and refrigerant charge is located behind the front panel, near the control box.

  • Page 3: Environmental Limitations

    They meet or exceed the standards of UL, NSF, and CSA. Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, including the use of any part and/or other components not specifically approved by Scotsman.

  • Page 4: For The Installer: Machine & Bin Assembly

    1. The ice storage bin. 2. The ice maker itself. Storage Bin: 1. Measure the location of the ice machine floor drain relative to the installed location of the bin. 2. Using corner posts from the bin’s carton as a cushion, lay the bin on its back.

  • Page 5: For The Plumber

    MCM1062W FOR THE PLUMBER Water Supply The recommended water supply line is a 3/8-inch O.D. tubing with a minimum operating pressure of 20 PSIG and a maximum of 80 PSIG. A separate water inlet is required for the condenser water supply. Connect to cold water supply line with standard plumbing fittings, with shut off valve installed in an accessible place between the water supply and...

  • Page 6: For The Electrician

    MCM1062W FOR THE ELECTRICIAN: Electrical Connections See the NAMEPLATE for current requirements to determine wire size to be used for electrical hookup. The cuber requires a solid chassis to chassis earth ground wire. See Wiring Diagram. Be certain the cuber is connected to its own electrical circuit and individually fused.

  • Page 7: Final Check List

    12. Has the Field Quality Audit form been properly filled out? Check for correct model and serial numbers from Serial nameplate, then mail the completed form to the SCOTSMAN factory. 13. Has the owner been given the name and telephone number of the authorized SCOTSMAN...

  • Page 8: Initial Start Up

    MCM1062W INITIAL START UP Ice Maker: 1. Remove front panel by pulling out to unsnap. 2. Remove two screws and the control box cover. 3. Remove the evaporator cover. 4. Remove the left side service panel. 5. Check that the ON/WASH/OFF rocker switch and the Compressor ON-OFF toggle switch are in the OFF position, on the control box.
  • Page 9 4. The unit will turn off at the end of the harvest cycle. 5. Slowly lower the flat object straight down. 6. The ice machine will start again at the point where it will maintain the ice level. 17. Replace all panels, covers and screws.

  • Page 10: Adjustments

    Rotating the shaft of the timer cam Clockwise will put the ice machine into the freeze or harvest cycle, as required in the cleaning instructions.

  • Page 11: Component Description

    The hot gas solenoid valve is installed in a branch of the discharge line, and when the timer switches the ice machine into the harvest cycle, the energized solenoid coil lifts the valve stem within the valve body, allowing the hot discharge gas to be diverted to the evaporators.
  • Page 12 Ice Level Control This electronic control uses sound waves to measure the distance between the bottom of the ice machine and the top of the ice in the bin. It is designed to control the machine’s ice production to maintain that distance.
  • Page 13 COMPONENT DESCRIPTION Electric Water Inlet Valve The water inlet solenoid valve fills the reservoir assembly with water. Excess water overflows out the overflow standpipe located at the back of the reservoir. This action fills and rinses the reservoir during each harvest cycle. The flow rate is .75 g.p.m.

  • Page 14: Service Specifications

    MCM1062W SERVICE SPECIFICATIONS When servicing a machine, it’s helpful to compare that unit’s operating characteristics to those of a new, clean, normally operating machine. What follows is that type of information: Timer: Makes one complete revolution in 8 minutes. The harvest time is factory preset at 2 The harvest time is adjustable as required.

  • Page 15: Cleaning

    CLEANING /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// A Scotsman Ice System represents a sizable investment of time and money in any company’s business. In order to receive the best return for that investment, it MUST receive periodic maintenance. Maintenance and Cleaning should be scheduled at a minimum of twice per year.
  • Page 16 4. Rinse the interior of the storage bin using clean water and the sponge used in step 3. 5. Switch the ice machine back on. ON/OFF/WASH SWITCH September 1993 Page 16...

  • Page 17: Service Diagnosis

    SERVICE DIAGNOSIS SYMPTOM No ice, machine does not run No ice, compressor does not run, rest of ice machine does. No ice, no water over evaporators No ice, everything runs Low ice production POSSIBLE CAUSE 1. No electrical power 2. Circuit breaker tripped or fuse blown 3.
  • Page 18 MCM1062W SERVICE DIAGNOSIS SYMPTOM Low ice production No ice falling in bin, unit frozen up Ice maker stuck in harvest cycle Ice is mal-formed Water overflows from reservoir into bin. POSSIBLE CAUSE 4. High head pressure, a result of a dirty condenser 5.
  • Page 19 SERVICE DIAGNOSIS: Ice Level Control Circuit CONDITION Ice Machine does not run, it has power to it, the high pressure control is closed, the on/off switch is set to ON. Machine runs, makes ice, switches on and off, but ice level cannot be controlled.

  • Page 20: Removal And Replacement

    MCM1062W REMOVAL AND REPLACEMENT TRANSDUCER 1. Disconnect electrical power BEFORE removing transducer. 2. Open bin door and locate the transducer socket. 3. Twist inner portion of transducer counter- clockwise and push up gently. 4. Pull transponder down until plug connection is accessible.

  • Page 21: Removal And Replacement

    REMOVAL AND REPLACEMENT /////////////////////////////////WARNING///////////////////////////// Disconnect electrical power before beginning. /////////////////////////////////////////////////////////////////////////////// Cube Size Control To remove the cube size control: 1. Remove front panel. 2. Remove cover from control box. 3. Trace capillary tube, from the cube size control to the refrigerant suction line. 4.
  • Page 22 MCM1062W REMOVAL AND REPLACEMENT /////////////////////////////WARNING////////////////////////////////// Disconnect electrical power before beginning. ///////////////////////////////////////////////////////////////////////////////// Water Pump 1. Remove front panel. 2. Remove evaporator cover. 3. Unplug water pump electrical connection. 4. Remove thumb screw retaining pump to cross brace. ELECTRICAL CONNECTION DISCHARGE HOSE PUMP REMOVAL OF THE WATER PUMP 5.

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