1. Manuals
  2. Brands
  3. Scotsman Manuals
  4. Ice Maker
  5. MCM1062
  6. User manual

Scotsman MCM1062 User Manual

Scotsman mcm1062 ice machine: user guide
Hide thumbs Also See for MCM1062:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Manual
INTRODUCTION
This manual is intended as a reference for the
installation and service of a Scotsman ice maker
model MCM1062.
This model is a remote condenser cuber, 30" wide
and may be connected to a Mac 6 or a Scotsman
remote condenser. This ice machine uses R-22.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Environmental Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
For the Installer
Machine & Bin Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Remote Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Coupling Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Service Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.

TABLE OF CONTENTS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
October 1993
Page 1
MCM1062R
Page

Advertisement

Table of Contents
loading

Related Manuals for Scotsman MCM1062

Summary of Contents for Scotsman MCM1062

  • Page 1: Table Of Contents

    Scotsman ice maker model MCM1062. This model is a remote condenser cuber, 30" wide and may be connected to a Mac 6 or a Scotsman remote condenser. This ice machine uses R-22. Specifications ........2 Environmental Limitations .

  • Page 2: Specifications

    MCM1062R 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

    4. The remote condenser. Additionally, there will be interconnecting wires between the ice maker and the condenser. The Scotsman remote condenser is powered from the ice maker. The condenser must be located above the ice maker, usually on the roof.

  • Page 5: For The Plumber

    MCM1062R 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. Connect to cold water supply line with standard plumbing fittings, with shut off valve installed in an accessible place between the water supply and the cuber.

  • Page 6: Remote Condenser

    MCM1062R FOR THE INSTALLER: Remote Condenser Scotsman Condenser: Locate the condenser as near as possible to the SCOTSMAN REMOTE interior location of the ice maker. CONDENSER Location of the condenser is limited by the specific length of pre-charged refrigerant tubing supplied for the application.
  • Page 7 FOR THE INSTALLER: Remote Condenser (Scotsman) Pre-charged Line Routing /////////////////////////////CAUTION/////////////////////////////// Do not connect pre-charged tubing until all routing and forming of the tubing is complete. See the coupling instructions for connecting instructions. //////////////////////////////////////////////////////////////////////////// 1. Each set of precharged refrigerant lines consists of a 3/8 inch diameter liquid line, and a 1/2 inch diameter discharge line.
  • Page 8 6. The flexible line end must be installed behind the icemaker, it is to be looped down from the ice machine connection area then back up to the wall behind the ice machine. This allows the ice machine to be pulled out for service.

  • Page 9: Coupling Instructions

    FOR THE INSTALLER: Coupling Instructions /////////////////////////////CAUTION///////////////////////////// The couplings on the sets of precharged lines are self sealing when installed properly. Carefully follow the instructions: ////////////////////////////////////////////////////////////////////////// 1. Remove the protector caps and plugs. Wipe the seats and threaded surfaces with a clean cloth to be certain that no foreign matter remains on them.

  • Page 10: For The Electrician

    All external wiring should conform to the national, state and local electrical code requirements. Usually an electrical permit and services of a licensed electrician will be required. REMOTE CONDENSER ELECTRICAL CONNECTION (SCOTSMAN CONDENSER) October 1993 Page 10 POWER SUPPLY TO REMOTE SCOTSMAN CONDENSER...

  • Page 11: Final Check List

    Check for correct model and serial numbers from Serial nameplate, then mail the ELECTRICAL completed form to the POWER CORD SCOTSMAN factory. 13. Has the owner been given the name and POTABLE telephone number of the WATER authorized SCOTSMAN INLET...

  • Page 12: Initial Start Up

    MCM1062R INITIAL START UP Remote Condenser: 1. Check that all connections have been made. 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.
  • Page 13 3. Hold a flat object about the size of this service manual over the ice level sensor socket. 4. The ice machine should turn off at the end of the harvest cycle. 5. Slowly lower the flat object straight down.

  • Page 14: Adjustments

    MICROSWITCH one-half minutes is the defrost/harvest cycle. Rotating the shaft of the timer cam clockwise will put the ice machine in the freeze or harvest cycle. ////////////////////////////// WARNING /////////////////////////////// Disconnect electrical power supply to icemaker whenever adjustment procedures are performed.

  • Page 15: Component Description

    COMPONENT DESCRIPTION Compressor Contactor The compressor contactor carries the compressor line current. The contactor is wired so any control in the pilot circuit, such as the bin control, and high pressure controls, etc., will cause the contactor holding coil to be de energized, when the control contact OPENS, thereby breaking the circuit to the compressor.
  • Page 16 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 machines ice production to maintain that distance.
  • Page 17 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 18: Service Specifications

    COMPONENTS gallon per minute during the harvest cycle. 8" from the base of the ice machine. 21" - 22" from the base of the ice machine. 8’ from the base of the ice machine. 275-210 P.S.I.G. 24-20 P.S.I.G.

  • Page 19: 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 20 10. Replace the evaporator cover. Replace the front panel. 11. Move the master switch to ON. SCOTSMAN REMOTE CONDENSER 1. Disconnect electrical power at the icemaker. ///////////////////////////////WARNING/////////////////////////// Disconnect electrical power before beginning. //////////////////////////////////////////////////////////////////////////// 2.
  • Page 21 FREEZING CYCLE OPERATION Water from the sump assembly is pumped to the water distributor system at the top of each evaporator plate. From the water distributor the water cascades by gravity over all cells of the plate and to the sump assembly below. At the beginning of the freezing cycle, the electrical circuit is completed to the compressor and the water pump.
  • Page 22 MCM1062R HARVEST CYCLE - HOT GAS BYPASS When the timer switches the icemaker into the harvest cycle, high pressure, high temperature gas refrigerant being discharged from the compressor is diverted from the condenser through the hot gas solenoid valve into each evaporator plate. During this cycle, the refrigerant bypasses the condenser.

  • Page 23: 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 24 MCM1062R 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 3. High head pressure, a result of a dirty condenser 4.
  • Page 25 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 (the compressor will not operate until the liquid line valve opens, but the pump should be working if there is no ice in the bin).

  • Page 26: Removal And Replacement

    MCM1062R 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 27 REMOVAL AND REPLACEMENT /////////////////////////////////WARNING////////////////////////////// Disconnect electrical power before beginning. ///////////////////////////////////////////////////////////////////////////////// Water Distributor Tubes And Manifold Tubes To remove the water distributor tube and manifold tube: 1. Pull out to unsnap catches and remove the front panel. 2. Remove the evaporator cover. 3.
  • Page 28 MCM1062R 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. ELECTRICAL CONNECTION DISCHARGE HOSE WATER PUMP REMOVAL OF THE WATER PUMP 4. Remove thumb screw retaining pump to cross brace.
  • Page 29 REMOVAL AND REPLACEMENT Head Pressure Control Valve 1. Remove side service panel, and top panel if possible. 2. Discharge and recover refrigerant from the system. 3. Break off the process tube on the dome of the head pressure control valve. 4.

This manual is also suitable for:

Mcm1062r

Table of Contents