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Superfreezer CRR DF MP3000/MP3000a Media type icon

    • i Preface For None
    • ii Introduction
      • General Information
      • Revision History
      • Recover Refrigerant
      • R-134a/R-23
      • Customer Satisfaction Survey
  • Chapter 1: Safety Precautions
    • 1.1: Danger, Warning, Caution, and Notice
    • 1.2: General Practices
    • 1.3: Refrigerant Hazards
    • 1.4: Electrical Hazards
      • High Voltage
      • Low Voltage
    • 1.5: Electrostatic Discharge Precautions
      • Electrostatic Discharge and the Controller
    • 1.6: Welding on Refrigeration Units or Containers
    • 1.7: First Aid
    • 1.8: Identifying Unit Safety and Warning Decals
    • 1.9: Serial Number Location
    • Chapter 2: Service Guide
    • Chapter 3: Specifications
      • 3.1: Full Cool Operation Net Cooling Capacity
      • 3.2: System Net Defrost Heating Capacity
      • 3.3: Evaporator Airflow
      • 3.4: R-134a Refrigeration System
      • 3.5: R-23 Refrigeration System
      • 3.6: Electrical System
      • 3.7: Microprocessor Controller
      • 3.8: Physical Specifications
      • 3.9: Compressor Torque — 3D Copeland Compressor Bolt Torque
      • 3.10: Metric Hardware Torque Charts
    • Chapter 4: Unit Description
      • 4.1: General Description
        • Cascade Refrigeration System
        • R-134a Semi-hermetic Reciprocating Compressor
        • R-23 Hermetic Scroll Compressor
        • Microprocessor Controller
        • Datalogger
        • Three Evaporator Fans
        • USDA Cold Treatment Temperature Recording
        • REFCON Remote Monitoring Modem (RMM)
      • 4.2: Operating Modes
        • Frozen Loads
    • Chapter 5: Operating Instructions
      • 5.1: Basic Unit Controls, Instruments and Protection Devices
        • Unit Control Box
        • MP3000/MP3000a Controller
      • 5.2: R-134a Refrigeration System Controls, Instruments and Protection Devices
      • 5.3: R-23 Refrigeration System Controls, Instruments and Protection Devices
      • 5.4: Pretrip Inspection
      • 5.5: Power Selection
      • 5.6: Pre-load Operation
        • Pre-Trip Conditions
        • Pre-Trip Checks
      • 5.7: Loading Procedure
      • 5.8: Post Load Procedure
      • 5.9: Starting the Unit on Ship
      • 5.10: Post Trip Procedure
    • Chapter 6: Microprcessor Controller
      • 6.1: General Description
      • 6.2: General Theory of Operation
        • Frozen Loads (Setpoint at -10 C [14 F] and Below)
      • 6.3: Sequence Of Operation
        • Unit Start-up
        • Continuous Temperature Control Operation
        • Frozen Loads — Controller Setpoint at -10 C (14 F) and Below
        • Defrost
      • 6.4: Changing the Setpoint
      • 6.5: Initiating a Manual Defrost
      • 6.6: Displaying Alternate Controlling (Supply or Return) Air Sensor Temperature
      • 6.7: Displaying Alternate Fahrenheit (F) or Celsius (C) Temperature
      • 6.8: Menu Operating Instructions
        • Controller Menu
        • Data Menu
        • Alarm List Menu
        • Alarm Types
        • Alarm Code States
        • Viewing the Alarm List menu:
        • Commands Menu
        • Viewing the Commands menu:
        • Manual function Test, DF units
        • Misc. Functions Menu
        • Viewing the Misc. Functions menu:
        • Setting the Date and Time
        • Changing the Temperature Display Value (C/F)
        • Setting Cargo Data
        • Viewing or Setting Run Time
        • Configuration Menu
        • MP3000/MP3000a Configuration List, DF Units
        • Viewing or Setting Functions in the Misc. Functions menu:
        • Datalogger Menu
        • Viewing the Datalogger menu:
        • RMM State Menu
        • Viewing the RMM State screen:
      • 6.9: PTI (Pretrip) Test
      • 6.10: Temperature Sensors
      • 6.11: Manual Emergency Mode Operation
      • 6.12: Replacing the EPROM Chip (MP3000/MP3000a)
      • 6.13: Replacing the Microprocessor Controller
      • 6.14: Flash Loading Controller Software
    • Chapter 7: Electrical Maintenance
      • 7.1: Unit Wiring
      • 7.2: High Pressure Cutout Switch
        • R-23 High Pressure Cutout Switch
        • R-134a High Pressure Cutout Switch
      • 7.3: Low Pressure Cutout Switch
        • Removal
        • Installation
      • 7.4: Low Pressure Cutout Switch or Suction Transducer Configuration
      • 7.5: Condenser Fan and Evaporator Fan Rotation
        • Check Condenser Fan Rotation
        • Check Evaporator Fan Rotation
      • 7.6: Temperature Sensors
        • Sensor Installation
        • Sensor Testing
        • Resistance Values for Temperature Sensors
    • Chapter 8: Refrigeration Maintenance
      • 8.1: Introduction
      • 8.2: Tools
      • 8.3: Vacuum Pump
      • 8.4: Filters and Cartridges
      • 8.5: Refrigerant Recovery Equipment
      • 8.6: Detecting Leaks
      • 8.7: Special Service Fittings
      • 8.8: Oil Acid Test
      • 8.9: Checking Compressor Oil
        • Checking the Compressor Oil Level
        • Adding Compressor Oil
        • Removing Excess Compressor Oil
      • 8.10: Isolate Compressor
      • 8.11: Service Valve Positions
      • 8.12: Gauge Manifold Connections
        • Before You Proceed
        • Gauge Manifold Positions
        • Gauge Connections: Balancing Pressure, Removing Refrigerant, and Charging System
      • 8.13: Low Side Pump Down (R-134a Compressor Only)
      • 8.14: Gauge Manifold Set
        • Using a New Gauge Manifold Set
        • Gauge Manifold Valve Positions
      • 8.15: Gauge Manifold Set Installation and Removal
      • 8.16: Checking Refrigerant Charge
        • 8.16.1: Checking the R-134a Refrigerant Charge
        • 8.16.2: Checking the R-23 Refrigerant Charge
      • 8.17: Receiver Tank Sight Glass
      • 8.18: Leak Testing Refrigeration System
      • 8.19: Using Pressurized Nitrogen
        • Safety Precautions
        • Purge High Side to Low Side
        • Maximum Gas Pressures
      • 8.20: Recovering Refrigerant from System
        • 8.20.1: Recovery for System Repair
          • R-134a Vapor Recovery
          • R-134a Liquid Recovery
      • 8.21: Evacuation and Cleanup of Refrigeration System
        • 8.21.1: Unit Preparation and Hookup
        • 8.21.2: Unit Evacuation
        • 8.21.3: Pressure Rise Test
        • 8.21.4: Factors Affecting Speed of System Evacuation
        • 8.21.5: Heat Saves Time
      • 8.22: Charging System with Refrigerant
        • 8.22.1: R-134a Final Charging Procedure for Partially Charged Units
        • 8.22.2: Checking the R-23 Refrigerant Charge
        • 8.22.3: Final Charging Procedure for Partially Charged Units on Empty Containers R-23
        • 8.22.4: Charging Procedure for Partially Charged Units on Loaded Containers R-23
      • 8.23: Compressor Replacement
        • Removal
        • Installation
      • 8.24: Condenser Coil Replacement
      • 8.25: Filter Drier Replacement
        • Removal
        • Installation
      • 8.26: Evaporator Expansion Valve (TXV) Replacement
      • 8.27: Expansion Valve Replacement
        • Removal
        • Installation
      • 8.28: Heat Exchanger Replacement
        • Removal
        • Installation
      • 8.29: Receiver Tank Replacement
        • Removal
        • Installation
      • 8.30: High Pressure Cutout Switch Replacement
        • Removal
        • Installation
      • 8.31: Liquid Line Solenoid Valve Replacement (R-134a System Only)
        • Removal
        • Installation
      • 8.32: Low Pressure Cutout Switch Replacement
        • Removal
        • Installation
    • Chapter 9: Servicing the Unit
      • 9.1: Taking Care of the Structure
        • Inspecting Unit
        • Checking Mounting Bolts
        • Cleaning the Condenser Coil
        • Cleaning the Evaporator Coil
        • Cleaning the Defrost Drains
        • Positioning the Condenser Fan Blade
        • Positioning the Evaporator Fan Blade
        • Vacuum Valve
    • Chapter 10: Diagnostics
      • 10.1: Introduction
      • 10.2: Mechanical Diagnostics
      • 10.3: Refrigeration Diagnostics
      • 10.4: Alarm Codes, Descriptions and Corrective Actions
    • Chapter 11: Diagrams
      • 11.1: Diagram Index
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    Operating Instructions

    In this section:

    1. Basic Unit Controls, Instruments and Protection Devices
    2. R-134a Refrigeration System Controls, Instruments and Protection Devices
    3. R-23 Refrigeration System Controls, Instruments and Protection Devices
    4. Pretrip Inspection
    5. Power Selection
    6. Pre-load Operation
    7. Loading Procedure
    8. Post Load Procedure
    9. Starting the Unit on Ship
    10. Post Trip Procedure
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