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Scotsman MV21 - User Manual

Scotsman MV21
30 pages
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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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Summary

Modular Cuber Specifications

MV 12 Specifications and Capacity

Details specifications and ice making capacity for the MV12 model.

MV 12 Machine Details

Machine specifications and dimensions for MV12 models (Air/Water cooled).

MV 21 Specifications and Capacity

Details specifications and ice making capacity for the MV 21 model.

MV 21 Machine Details

Machine specifications and dimensions for MV 21 models (Air/Water cooled).

MV 32 Specifications and Capacity

Details specifications and ice making capacity for the MV 32 model.

MV 32 Machine Details

Machine specifications and dimensions for MV 32 models (Air/Water cooled).

MV 50 Specifications and Capacity

Details specifications and ice making capacity for the MV 50 model.

MV 50 Machine Details

Machine specifications and dimensions for MV 50 models (Air/Water cooled).

Installer Guide

Introduction to Installation

Provides specifications and step-by-step procedures for installation, start-up, and operation.

Installation Site Requirements

Covers location selection, space for ventilation, and utility connections.

Storage Bin and Legs

Details bin compatibility, refrigerant type, and standard leg specifications.

Important Operating Requirements

Specifies minimum and maximum limits for air/water temperature and pressure.

Select Installation Location

Criteria for selecting a suitable installation spot, ensuring utilities and space.

Ice Machine Installation Steps

Instructions for lifting the icemaker onto the bin and securing it.

Air Separator and Shipping Material Removal

Installation of air separator and removal of shipping materials.

Stacking Installation Guide

Procedures for stacking one machine on top of another.

Plumbing and Electrical Requirements

Water Inlet and Supply Considerations

Details water supply type, pressure, clarity, and purity requirements.

Drainage System Requirements

Specifies requirements for sump and condenser drains for different model types.

Electrical Connection Guidelines

Instructions for connecting power supply and ensuring proper wiring.

Electrical Safety Precautions

Emphasizes neutral wire and earth ground for safety and preventing damage.

Final Installation Checklist

Pre-Operation Checks

Covers cabinet level, location, clearances, and connections.

System Pressure and Electrical Tests

Checks water supply pressure, electrical wiring, and grounding.

Compressor and Refrigerant Line Checks

Verifies compressor mounting and refrigerant line integrity.

Owner Information and Registration

Ensures owner receives manuals, support info, and registration card.

Start-Up Procedures

Initial Start-Up Steps

Removing panels, opening water supply, and filling the sump.

Powering On and Freezing Cycle Check

Turning on power, checking LEDs, compressor, and fan operation.

Water Pump and Ice Harvest Adjustment

Verifying water pump operation and adjusting ice cube size.

Ice Formation and Water Quality Notes

Notes on ice plate formation, water quality, and safety timers.

Water Conductivity and Bin Full Check

Ensures proper water conductivity and checks bin-full shut-off.

Final Panel Installation and Owner Explanation

Reinstalling panels and explaining operation to the owner.

Operation: Freeze Cycle

Refrigeration System Overview

Schematic of the refrigeration system during the freeze cycle.

Refrigeration Process Explained

Describes how refrigerant flows and cools the evaporator.

Water System Function

Explains the mechanical float valve and water pump operation.

Operation: Harvest Cycle

Refrigeration System During Harvest

How hot gas bypass melts ice and releases cubes.

Water System During Harvest

Operation of the water drain valve and sump flushing.

Control Sequence Logic

Freezing Cycle Activation

How magnetic switches and ice sensor initiate the freezing cycle.

Harvest Cycle Initiation

Triggers for harvest cycle, ice release, and control board actions.

Bin Full and Unit Stop Conditions

How the machine stops when the bin is full or due to sensor failure.

Service Specifications

Component Specifications

Details reservoir level, ice sensor distance, and safety switch settings.

Operating Characteristics and Pressures

Provides normal operating pressures and temperatures for different models.

Refrigerant Charge Information

Specifies refrigerant charge amounts for air and water-cooled models.

Component Descriptions

Front Console Panel Indicators

Explanation of LED indicators and their meanings on the console panel.

P.C. Board Functionality

Details the role of the PC Board and its connectors/jumpers.

Compressor and Ice Thickness Sensor

Describes the compressor contactor and ice thickness sensor functions.

Magnetic Switch and Hot Gas Valve

Explains magnetic switch signaling and hot gas solenoid valve operation.

Condenser Sensor and High Pressure Control

Details condenser temperature sensing and high-pressure safety control.

Water System Components

Describes water regulator valve, distribution, and drain solenoid valve.

Expansion Valve and Water Pump

Explains the thermostatic expansion valve and water pump functions.

Removal and Replacement Procedures

Water Pump and Reservoir Removal

Steps for removing and replacing the water pump and reservoir.

Distributor, Outlet Valve, and Compressor R&R

Procedures for distributor, outlet valve, and compressor removal/replacement.

Condenser and Hot Gas Valve R&R

Steps for removing and replacing condensers (air/water) and hot gas valve.

Drier Removal and Replacement

Instructions for removing and replacing the refrigerant drier.

Water Regulating Valve R&R

Procedure for removing and replacing the water regulating valve.

Thermostatic Expansion Valve R&R

Steps for removing and replacing the thermostatic expansion valve.

Evaporator Plate Assembly R&R

Instructions for removing and replacing the evaporator plate assembly.

Fan Motor or Blade R&R

Procedure for removing and replacing the fan motor or blade.

Service Diagnosis

Troubleshooting: Machine Does Not Run

Diagnosing issues when the machine does not run and LED indicators.

Troubleshooting: Compressor Issues

Diagnosing problems when the compressor is not running or runs slowly.

Troubleshooting: Ice Production Issues

Diagnosing issues with ice thickness, water quality, and harvest.

Troubleshooting: Low Ice Capacity

Diagnosing low ice capacity due to pressure, compressor, or condenser issues.

Troubleshooting: Irregular Ice Making

Diagnosing irregular ice formation due to water supply or refrigerant issues.

Maintenance and Cleaning Instructions

General Maintenance Schedule

Recommended maintenance frequency for icemakers and bins.

Icemaker Maintenance Steps

Checks for water treatment, strainer, level, and leaks.

Ice Storage Bin Cleaning and Sanitizing

Procedure for cleaning and sanitizing the ice storage bin interior.

Cabinet Exterior Cleaning

Instructions for cleaning the unit and bin exterior surfaces.

Ice Maker Cleaning Procedure

Detailed steps for cleaning the ice maker using cleaner solution.

Rinsing Mode and Final Checks

Procedure for rinsing the system and checking ice quality after cleaning.

Scotsman MV21 Specifications

General IconGeneral
Dimensions (W x D x H)330 x 560 x 800 mm
Electrical220-240V, 50Hz
Condenser TypeAir-cooled
Ice Production21 kg/24h
Power Supply220-240V, 50Hz
Dimensions (H x W x D)800 x 330 x 560 mm

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