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Superfreezer CRR DF MP4000
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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