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Superfreezer CRR DF MP4000 Media type icon

    • i 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
      • Component Serial Number Identification
  • 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
      • Power Module Fuses
      • Three Evaporator Fans
      • USDA Cold Treatment Temperature Recording
      • REFCON Remote Monitoring Modem (RMM)
    • 4.2: Operating Modes
      • Frozen Loads
  • Chapter 5: Unit Operation
    • 5.1: Basic Unit Controls, Instruments and Protection Devices
      • MP4000 Controller
      • Back-up Battery
    • 5.2: R-134a Refrigeration System Controls, Instruments and Protection Devices
    • 5.3: R-23 Refrigeration System Controls, Instruments and Protection Devices
    • 5.4: Power Selection
    • 5.5: Pre-load Operation
      • Pre-Trip Conditions
      • Pre-Trip Checks
    • 5.6: Loading Procedure
    • 5.7: Post Load Procedure
    • 5.8: Starting the Unit on Ship
  • Chapter 6: Operating Instructions MP4000
    • 6.1: Function Keys
      • Unit On/Off Key
    • 6.2: Sequence of Operation
      • 6.2.1: Unit Start-up
      • 6.2.2: Initiating a Manual Defrost
      • 6.2.3: Pretrip Inspection (PTI)
      • 6.2.4: Lock Padlock
      • 6.2.5: Controller Back-up Battery
    • 6.3: Controller Lockup Issue
    • 6.4: Emergency Run Mode
      • Rotation Check
      • FULL COOL Mode
      • DEFROST Mode
      • Low Speed Fans Only
  • Chapter 7: Controller Description
    • 7.1: MP4000 Controller
      • Back-up Battery
      • Input and Output Signals
    • 7.2: Standard Display
      • Idle Screen and Check Symbol
      • Unit Status Display
      • Display Icons
      • Mode Descriptions
      • 7.2.1: Viewing Alarms/Messages from Standard Display
      • 7.2.2: Display Alternate Fahrenheit (F) or Celsius (C) Temperatures
      • 7.2.3: Changing Setpoint
      • 7.2.4: Main Menu
    • 7.3: Keys and Indicator LEDs
      • Function Keys
      • Special Function Keys
      • Indicator LEDs
  • Chapter 8: Navigating Controller Operating Menu
    • Menu Scrolling Keys
    • Changing Screen Contrast
  • Chapter 9: Main Menu
    • 9.1: Main Menu
    • 9.2: Values Menu
    • 9.3: Controls Menu
      • 9.3.1: Temperature Setpoint
      • 9.3.2: Defrost Termination
    • 9.4: Alarm Menu
      • Alarm Code States
      • Alarm Codes
    • 9.5: Message Menu
    • 9.6: Configuration Menu
      • Unit
      • Options
      • System
      • Clock
      • Calibrate
      • Icon Menu
    • 9.7: Log View Menu
    • 9.8: Info Menu
  • Chapter 10: Special Function Keys - User Activated Commands
    • 10.1: PTI Key
    • 10.2: PTI (Pretrip) Test
    • 10.3: Defrost Key
    • 10.4: PTI (Pretrip) Tests
      • 10.4.1: Manual Function Test
      • 10.4.2: Function Test
  • Chapter 11: Operating Theory
    • 11.1: Frozen Loads (Setpoint at -10 C [14 F] and Below)
      • Cooling Capacity Display in Main Screen
    • 11.2: High Temperature Protection
    • 11.3: Probe Test
    • 11.4: Continuous Temperature Control Operation
      • Frozen Loads — Controller Setpoint at -10 C (14 F) and Below
      • Defrost
    • 11.5: Data Recording and Downloading Data
  • Chapter 12: Controller Maintenance
    • 12.1: Controller Door Open and Close Instructions
    • 12.2: Flashloading Controller Software
    • 12.3: MP4000 Test System Tool
    • 12.4: Controller Replacement
  • Chapter 13: Electrical Maintenance
    • 13.1: Unit Wiring
    • 13.2: High Pressure Cutout Switch
      • R-23 High Pressure Cutout Switch
      • R-134a High Pressure Cutout Switch
    • 13.3: Low Pressure Transducer R23
      • Removal
      • Installation
    • 13.4: Pressure Transducer (Sensor)
      • Removal
      • Installation
    • 13.5: Condenser Fan and Evaporator Fan Rotation
      • Check Condenser Fan Rotation
      • Check Evaporator Fan Rotation
    • 13.6: Temperature Sensors
      • Sensor Installation
      • Sensor Testing
      • Resistance Values for Temperature Sensors
  • Chapter 14: Refrigeration Maintenance
    • 14.1: Introduction
    • 14.2: Tools
    • 14.3: Vacuum Pump
    • 14.4: Filters and Cartridges
    • 14.5: Refrigerant Recovery Equipment
    • 14.6: Detecting Leaks
    • 14.7: Special Service Fittings
    • 14.8: Oil Acid Test
    • 14.9: Checking Compressor Oil
      • Checking the Compressor Oil Level
      • Adding Compressor Oil
      • Removing Excess Compressor Oil
    • 14.10: Isolate Compressor
    • 14.11: Service Valve Positions
    • 14.12: Gauge Manifold Connections
      • Before You Proceed
      • Gauge Manifold Positions
      • Gauge Connections: Balancing Pressure, Removing Refrigerant, and Charging System
    • 14.13: Low Side Pump Down (R-134a Compressor Only)
    • 14.14: Gauge Manifold Set
      • Using a New Gauge Manifold Set
      • Gauge Manifold Valve Positions
    • 14.15: Gauge Manifold Set Installation and Removal
    • 14.16: Checking Refrigerant Charge
      • 14.16.1: Checking the R-134a Refrigerant Charge
      • 14.16.2: Checking the R-23 Refrigerant Charge
    • 14.17: Receiver Tank Sight Glass
    • 14.18: Leak Testing Refrigeration System
    • 14.19: Using Pressurized Nitrogen
      • Safety Precautions
      • Purge High Side to Low Side
      • Maximum Gas Pressures
    • 14.20: Recovering Refrigerant from System
      • 14.20.1: Recovery for System Repair
        • R-134a Vapor Recovery
        • R-134a Liquid Recovery
    • 14.21: Evacuation and Cleanup of Refrigeration System
      • 14.21.1: Unit Preparation and Hookup
      • 14.21.2: Unit Evacuation
      • 14.21.3: Pressure Rise Test
      • 14.21.4: Factors Affecting Speed of System Evacuation
      • 14.21.5: Heat Saves Time
    • 14.22: Charging System with Refrigerant
      • 14.22.1: R-134a Final Charging Procedure for Partially Charged Units
      • 14.22.2: Checking the R-23 Refrigerant Charge
      • 14.22.3: Final Charging Procedure for Partially Charged Units on Empty Containers R-23
      • 14.22.4: Charging Procedure for Partially Charged Units on Loaded Containers R-23
    • 14.23: Compressor Replacement
      • Removal
      • Installation
    • 14.24: Condenser Coil Replacement
    • 14.25: Filter Drier Replacement
      • Removal
      • Installation
    • 14.26: Evaporator Expansion Valve (TXV) Replacement
    • 14.27: Expansion Valve Replacement
      • Removal
      • Installation
    • 14.28: Heat Exchanger Replacement
      • Removal
      • Installation
    • 14.29: Receiver Tank Replacement
      • Removal
      • Installation
    • 14.30: High Pressure Cutout Switch Replacement
      • Removal
      • Installation
    • 14.31: Liquid Line Solenoid Valve Replacement (R-134a System Only)
      • Removal
      • Installation
  • Chapter 15: Diagnostics
    • 15.1: Introduction
    • 15.2: MP4000 Diagnostics
    • 15.3: Mechanical Diagnostics
    • 15.4: Refrigeration Diagnostics
    • 15.5: Status Messages and Controller Actions
    • 15.6: Alarm Codes and Corrective Actions
  • Chapter 16: Diagrams
    • 16.1: Diagram Index
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Safety Precautions

In this section:

  1. Danger, Warning, Caution, and Notice
  2. General Practices
  3. Refrigerant Hazards
  4. Electrical Hazards
  5. Electrostatic Discharge Precautions
  6. Welding on Refrigeration Units or Containers
  7. First Aid
  8. Identifying Unit Safety and Warning Decals
  9. Serial Number Location
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