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Superfreezer CRR DF MP3000/MP3000a
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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Preface For None
Note
Last Updated : 07/09/2018
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