Page 1 Maintenance Manual CRR DF MPC2000 SB-210+ SB-210+ SB-210+ CRR DF MPC2000ID Additional text information Additional text information Additional text information to be placed here to be placed here to be placed here CRR DF MP 3000 TK 5XXXX-X-PL TK 5XXXX-X-PL TK 5XXXX-X-PL TK 50134-4-MM (Rev.
Page 3 The maintenance information in this manual covers unit models: CRR-40 DF with MPC2000 CRR-40 DF with MPC2000ID CRR-40 DF with MP3000 For further information, refer to: CRR DF Parts Manual TK50262 Diagnosing Thermo King Container Refrigeration Systems TK41166 Electrostatic Discharge (ESD) Training Guide TK40282 Evacuation Station Operation and Field Application TK40612...
Page 4 Recover Refrigerant At Thermo King, we recognize the need to preserve the environment and limit the potential harm to the ozone layer that can result from allowing refrigerant to escape into the atmosphere. We strictly adhere to a policy that promotes the recovery and limits the loss of refrigerant into the atmosphere.
Page 6: Table Of Contents
Table of Contents List of Figures ................9 Introduction .
Page 7 Table of Contents General Description ............... 55 General Theory of Operation .
Page 8 Table of Contents Adding Compressor Oil ............. . . 110 Removing Excess Compressor Oil .
Page 9 Table of Contents Low Pressure Cutout Switch Replacement (CRR DF MPC2000ID and MP3000 Units Only) ..........136 Removal .
Page 10: List Of Figures
List of Figures Figure 1: Unit Nameplate and Decal Locations ..........17 Figure 2: Unit Front View .
Page 11 List of Figures...
Page 12: Introduction
Introduction CRR DF Model Features Features X=Included X X X 460-380V/3Ph 60-50 Hz, 18.3 m (60 ft) Power Cable and Plug X X X 32 Amp Main Power Circuit Breaker X X X Automatic Phase Selection Control X X X Three Evaporator Fans with 2-Speed Motors X X X One 1-speed Condenser Fan Motor X –...
Page 13 Introduction...
Page 14: Safety Precautions
Safety Precautions General Practices 1. ALWAYS WEAR GOGGLES OR SAFETY GLASSES. Refrigerant liquid and battery acid can permanently damage the eyes (see First Aid under Refrigerant Oil). 2. Never close the compressor discharge valve with the unit in operation. Never operate the unit with the discharge valve closed.
Page 15: Refrigerant Oil
Safety Precautions Refrigerant Oil Observe the following precautions when working with or around refrigerant oil: • Do not allow refrigerant oil to contact your eyes. • Do not allow prolonged or repeated contact with skin or clothing. • To prevent irritation, you should wash thoroughly immediately after handling refrigerant oil. Rubber gloves are recommended when handling Polyol Ester based refrigerant oil.
Page 16: General Safety Precautions For Servicing Units (Or Containers) Equipped With A Microprocessor Controller
Safety Precautions First Aid IMMEDIATE action must be initiated after a person has received an electrical shock. Obtain immediate medical assistance if available. The source of shock must be immediately removed by either shutting down the power or removing the victim from the source.
Page 17: Welding Of Units Or Containers
Safety Precautions 6. If a defective controller is to be returned for repair, it should be returned in the same static protective packing materials from which the replacement component was removed. 7. After servicing the circuit board and any other circuits, the wiring should be checked for possible errors before restoring power.
Page 18: Figure 1: Unit Nameplate And Decal Locations
Safety Precautions AXA0343 AXA0344 AXA0345 BEC851 Unit Nameplate Location Figure 1: Unit Nameplate and Decal Locations...
Page 19 Safety Precautions...
Page 20: Service Guide
Service Guide Every 1,000 Annual/ Pre-Trip Hours Yearly Inspect/Service These Items Electrical • Perform a controller Pretrip Inspection (PTI) check. • • • Visually check condenser fan and evaporator fan rotation. • • • Visually inspect electrical contacts for damage or loose connections. •...
Page 21 Service Guide...
Page 22: Specifications
Specifications Full Cool Operation Net Cooling Capacity* 460V, 3 Phase, 60 Hz Power 380V, 3 Phase, 50 Hz Power Return air to evaporator coil Net Cooling Capacity Power Consp Net Cooling Capacity Power Consp inlet Watts Kcal/hr BTU/hr kW @460V Watts Kcal/hr BTU/hr kW @460V...
Page 23: R-23 Refrigeration System
Specifications R-23 Refrigeration System Compressor Model No. ZM18K4E-TFD-N275, Hermetic Scroll Refrigerant Charge Evacuated System 3.2 Kg (7.05 lb) R-23 Add Partial Charge by Pressure Charge to 1700 kPa, 17.00 bar, 247 psig Compressor Oil Capacity 1.77 liter (60 oz.)* Compressor Oil Type Polyol Ester Based Type (required), TK Part No.
Page 24: Electrical System
Specifications Electrical System R-134a Circuit Compressor Motor: Type Semi-hermetic Reciprocating Voltage 460/380V, 60/50 Hz, 3 Phase Kilowatts (60 Hz) 5.60 kW Horsepower (60 Hz) 7.5 hp RPM (60 Hz) 1750 rpm Full Load Amps 15.5 amps — 460V; 15.5 amps — 380V Locked Rotor Amps (60 Hz) 83 amps —...
Page 25: Microprocessor Controller
Specifications Microprocessor Controller Temperature Controller: CRR-40 DF MPC2000 MPC2000 microprocessor CRR-40 DF MPC2000ID MPC2000ID microprocessor CRR-40 DF MP3000 MP3000 microprocessor MPC2000, MPC2000ID and MP3000 microprocessors include thermostat, digital thermometer, programming keypad, mode indicators, LED display and LCD display for Description displaying unit operating and cargo information.
Page 26: Physical Specifications
Specifications Physical Specifications Base Unit Weight (net): CRR-40 DF MPC2000 610 Kg (1344 lb) CRR-40 DF MPC2000ID 610 Kg (1344 lb) CRR-40 DF MP3000 610 Kg (1344 lb) Unit Dimensions Width 2025.5 mm (79.75 in.) Height 2235.2 mm (88.00 in.) Depth 420.0 mm (16.54 in.) from back of flange Compressor Torque —...
Page 27: Metric Hardware Torque Chart
Specifications Metric Hardware Torque Chart Bolt Size Bolt Type and Class* N.m (Ft.-lb.) N.m (Ft.-lb.) N.m (Ft.-lb.) N.m (Ft.-lb.) HH – CL 5.8 6-9 (4-7) 12-16 (9-12) 27-34 (20-25) 48-61 (35-40) HH – CL 8.8 10-13 (7-10) 20-27 (15-20) 41-47 (30-35) 75-88 (55-65) HH –...
Page 28: Unit Description
Unit Description General Description Model CRR DF units are all-electric, single-piece, refrigeration units with bottom air supply. Each unit is designed for long distance, shipboard or overland transport of deep frozen or frozen cargoes. Each unit mounts in the front wall of the container. Fork lift pockets are provided for installation and removal of the unit.
Page 29: Microprocessor Controller
Unit Description Microprocessor Controller MPC2000, MPC2000ID and MP3000 controllers incorporate refrigeration system component control, thermostat, digital thermometer and fault indication capabilities into one self-contained package. Units with a MPC2000 or MP3000 controller are also equipped with a separate datalogger while the MPC2000ID controller includes an integral datalogger.
Page 30: Refcon Remote Monitoring Modem (Rmm)
Unit Description REFCON Remote Monitoring Modem (RMM) A REFCON remote monitoring modem is provided to permit remote monitoring via the power cable. High speed transmission reads all controller information. Data can also be retrieved from the datalogger via high speed transmission. Operating Modes NOTE: See Microprocessor Controller chapter for complete sequence of operation.
Page 31: Figure 2: Unit Front View
Unit Description BEC851 Evaporator Access Door Power Cord Storage Compartment Heater Access Panel Location Supply Air Sensor Probe Holder Condenser Fan Control Box R-23 Compressor Compartment Vacuum Pressure Valve Location (for Box Ventilation) R-134a Compressor Compartment Figure 2: Unit Front View...
Page 32: Figure 3: Evaporator Section - Front View
Unit Description AXA0347 Evaporator Fan Blade Defrost (Evaporator Coil) Sensor Location Evaporator Fan Motor Return Air Sensor Probe Holder Evaporator Coil Figure 3: Evaporator Section — Front View...
Page 33: Figure 4: Vacuum Valve
Unit Description BEC851 AXA0421 AXA0348 Vacuum Valve (located behind condenser grille cover), earlier Vacuum Valve (located behind condenser grille cover), current Figure 4: Vacuum Valve...
Page 34: Figure 5: Power Cord Storage Compartment
Unit Description AXA0349 Control Box Ambient Sensor Location Thermometer Sampling Port Power Plug and Cord Supply Air Sensor Probe Holder Figure 5: Power Cord Storage Compartment...
Page 35: Figure 6: Control Box And Microprocessor Controller
Unit Description AXA0422 AXA0351 MPC2000, MPC2000ID or MP3000 Controller Special Function Keypad LED Display (Return or Supply Air Temperature Unit On/Off Switch Display and Status Indicator LEDs) Communications Connector for Data LCD Display (Setpoint Temperature, Message and Retrieval Controller Main Menu Tree Display) Circuit Breaker General Purpose Keypad Figure 6: Control Box and Microprocessor Controller...
Page 36: Figure 7: Mpc2000 Or Mp3000 Controller And Remote Monitoring Modem
Unit Description AXA0419 AXA0353 Remote Monitoring Modem 10. Control Power Transformer (28 Vac, 29 Vac, 40 Vac) RMM Connection Cable Heat Relay Battery Cable Connection to Controller 12. Datalogger Cable Connection to Main Relay Board MPC2000 or MP3000 Controller 13. Cable No. 2 Connection to Main Relay Board Cable No.
Page 37: Figure 8: Mpc2000Id And Mp3000 Controller, And Remote Monitoring Modem
Unit Description AXA0354 AXA0353 MPC2000ID or MP3000 Controller with Control Power Transformer (28 Vac, 29 Vac, 40 Vac) Integral Datalogger Remote Monitoring Modem 10. Heat Relay RMM Connection Cable Cable No. 3 Connection to Main Relay Board Battery Cable Connection to Controller 12.
Page 38: Figure 9: Unit Control Box With Door Open
Unit Description AXA0355 Remote Monitoring Modem R-23 Scroll Compressor Contactors (2) MPC2000, MPC2000ID or MP3000 Controller R-134a Compressor Contactor Datalogger (CRR DF MPC2000 only) Main Relay Board 32 Ampere Main Power Circuit Breaker 12 Vdc Battery Figure 9: Unit Control Box with Door Open...
Page 39: Figure 10: Low Pressure Cutout Switch In R-23 Refrigeration System (Crr Df Mpc2000Id Units Only)
Unit Description AXA0357 AXA0423 R-23 Suction Pressure Gauge Line Connection Low Pressure Cutout Switch (CRR DF MPC2000ID Units Only) R-23 Suction Line Figure 10: Low Pressure Cutout Switch in R-23 Refrigeration System (CRR DF MPC2000ID Units Only)
Page 40: Figure 11: R-23 Compressor Compartment
Unit Description AXA0423 R-23 Discharge Pressure Gauge R-23 Lower Receiver Tank Sight Glass R-23 Suction Pressure Gauge Suction Service Valve R-23 Scroll Compressor Suction Service Fitting Compressor Discharge Temperature Sensor 10. R-23 Receiver Tank Compressor Oil Sight Glass Discharge Service Valve Oil Fill Fitting 12.
Page 41: Figure 12: Additional R-23 Refrigeration System Components
Unit Description AXA0359 AXA0423 AXA0424 R-23 Compressor Discharge Valve Receiver Tank R-23 High Pressure Cutout Switch Schrader Valve Service Fitting for R-23 Charging R-23 Expansion Valve Receiver Tank Sight Glass Figure 12: Additional R-23 Refrigeration System Components...
Page 42: Figure 13: R-134A Compressor Compartment
Unit Description AXA0425 Discharge Service Valve Compressor Oil Sight Glass R-134a Discharge Pressure Gauge Suction Service Valve R-134a Suction Pressure Gauge Suction Service Fitting Compressor Oil Fill Fitting R-134a High Pressure Cutout Switch R-134a Compressor 10. Compressor Discharge Temperature Sensor Figure 13: R-134a Compressor Compartment...
Page 43: Figure 14: Additional R-134A Refrigeration System Components And Plate Heat Exchanger
Unit Description AXA0363 R-134a Receiver Tank Dehydrator (Filter Drier) Receiver Tank Service Fitting Liquid Line Solenoid Receiver Tank Sight Glass R-134a Expansion Valve Liquid Line Ball (Service) Valve R-23/R-134a Plate Heat Exchanger (behind panel) Figure 14: Additional R-134a Refrigeration System Components and Plate Heat Exchanger...
Page 44: Figure 15: Unit Back View
Unit Description AXA0364 AXA0365 Evaporator Grille Controller Communications and Data Retrieval Connection Unit Gasket USDA1 Sensor Connection Top Rear Plate USDA2 Sensor Connection Sensor Connector Assembly USDA3 Sensor Connection Bottom Rear Plate Figure 15: Unit Back View...
Page 45: Figure 16: Unit Back View - Pressure Regulators And Buffer Tanks
Unit Description AXA0366 AXA0367 AXA0368 Constant Pressure Regulator (R-23 System) Sensor Connector Assembly Buffer Receiver Tanks – 5 Total (R-23 System) Crankcase Pressure Regulator (R-23 System) Figure 16: Unit Back View — Pressure Regulators and Buffer Tanks...
Page 46: Figure 17: Unit Back View - Electric Heaters And Evaporator Coil
Unit Description AXA0369 AXA0370 AXA0368 Electric Heaters Expansion Valve Feeler Bulb (R-23 System) Evaporator Coil (R-23 System) Figure 17: Unit Back View — Electric Heaters and Evaporator Coil...
Page 47 Unit Description...
Page 48: Operating Instructions
Operating Instructions Basic Unit Controls, Instruments and Protection Devices Unit Control Box ON position. Unit will operate on cool or null depending on the controller setpoint ON/OFF Switch: temperature and the container air temperature. OFF position. The unit will not operate. A 7 ampere manual reset circuit breaker protects the control circuit.
Page 49: Other
Operating Instructions • Heat (On during defrost) • Defrost • In-Range (Temperature) • Alarm The In-range LED illuminates when the controlling air sensor temperature is less than 3.0 C (5.4 F) above setpoint (standard). The controller maintains the in-range signal during defrost and after defrost for 60 minutes.
Page 50: Refrigeration System Controls, Instruments And Protection Devices
Operating Instructions A sight glass on the receiver tank contains three small balls that indicate the Receiver Tank Sight Glass: level of refrigerant in the tank for checking the refrigerant charge. A moisture indicator in the sight glass changes color to indicate the level of moisture in the system. Check the color of the indicator against the color decal in the sight glass.
Page 51: Pretrip Inspection
Operating Instructions A high pressure relief valve is installed in the receiver tank. The relief valve High Pressure Relief Valve: protects against excessive pressure build-up within the refrigeration system from extraordinary and unforeseen circumstances. The valve is a spring-loaded piston that lifts when refrigerant pressure exceeds 3447 +520/-104 kPa, 34.47 +5.20/-1.04 bar, 500 +75/-15 psig.
Page 52: Power Selection
Operating Instructions 9. Check vacuum valve for proper operation. 10. Observe the unit for proper operation and functions during Pre-load Operation. Power Selection CAUTION: Power supply connections from the unit to the power source should always be made with the refrigeration unit On/Off switch and the power supply On/Off switch in the OFF position.
Page 53: Loading Procedure
Operating Instructions • Enter minus sign first by pressing EXIT key. Then press numeric keys to enter new setpoint. • With correct setpoint in display, press and hold F4 key until cursor stops flashing. Controller places new setpoint in controller memory and shows new setpoint in LCD display. NOTE: New setpoint must be between -10 C and -60 C (14 F and -76 F) or controller will return to the previous setpoint display.
Page 54: Post Load Procedure
Operating Instructions Post Load Procedure 1. Make sure all doors are closed and locked. 2. Switch the Unit On/Off switch to ON position. 3. Adjust controller setpoint to the desired temperature: NOTE: The setpoint temperature can be set between -10 C and -60 C (14 F and -76 F) in either F or C using the C/F key.
Page 55: Post Trip Procedure
Operating Instructions Post Trip Procedure Trip data recorded by the MPC2000, MPC2000ID or MP3000 datalogger may be down loaded via the communications port on the control box using a DRU-II or SmartSponge handheld data retriever; or via the REFCON remote monitor system.
Page 56: Microprocessor Controller
Microprocessor Controller General Description The MPC2000, MPC2000ID and MP3000 are advanced microprocessor controllers that have been specially developed for control and monitoring of refrigeration units. Each controller contains the following basic features: 1. Eight status indicator LEDs are located in the top LED display and signal the following: •...
Page 57: Figure 18: Mpc2000, Mpc2000Id And Mp3000 Controller
Microprocessor Controller LED display with Status Indicator LEDs LCD message and menu display General purpose keys Special function keys Figure 18: MPC2000, MPC2000ID and MP3000 Controller...
Page 58 Microprocessor Controller Alarm Code Type Description Check Supply Air Sensor Open Circuit Check Supply Air Sensor Short Circuit Check Return Air Sensor Open Circuit Check Return Air Sensor Short Circuit Check Evaporator Coil Sensor Open Circuit Check Evaporator Coil Sensor Short Circuit Check R-134a Compressor Current Too...
Page 59 Microprocessor Controller 2. LED display with 20.32 mm high characters: • Five alpha numeric characters: Numerical hundredths, tens, ones and tenths position, a C for Celsius or F for Fahrenheit for temperature display. • LED display shows current control temperature (return or supply). Status LEDs signal sensor temperature shown in LED display.
Page 60 Microprocessor Controller • F3 key: BACKWARD/DOWN ARROWS indicate that pressing the K3 key scrolls the cursor backward and/or downward through text boxes and menu lists. • F4 key: ENTER ARROW indicate that pressing the K4 key moves the cursor into the next menu level or into a menu item text box.
Page 61 Microprocessor Controller All data logs include the time and date; setpoint temperature; and supply, return, USDA1, USDA2 and USDA3 sensor temperatures. All temperature logs can be viewed from the controller’s LCD message display. If the unit power supply is disconnected, the datalogger will continue to register 168 temperature logs. These will be maintained until the unit is re-connected to power, and the battery automatically re-charged.
Page 62: General Theory Of Operation
Microprocessor Controller • Datalogger Menu: Menu screens in this group display temperature log, event log, set log time and PTI log. • RMM (Remote Monitoring) State: Menu screen show current remote monitoring state (Offline, Zombie or Online). General Theory of Operation The MPC2000 and MPC2000ID controllers use advanced solid-state integrated circuits to monitor and control unit functions.
Page 63: Sequence Of Operation
Microprocessor Controller Sequence Of Operation Unit Start-up A 60 second sequence start of the required loads occurs during initial start-up of the controller. If cooling is required, the unit operates in the cool mode until the controlling sensor reaches 1.0 C (1.8 F) below setpoint.
Page 64: Continuous Temperature Control Operation
Microprocessor Controller Continuous Temperature Control Operation Frozen Loads — Controller Setpoint at -10 C (14 F) and Below The controller regulates compressor operation based the return air sensor and setpoint temperatures to determine operating mode switch points. The controller operates the unit on: •...
Page 65: Changing The Setpoint
Microprocessor Controller • A Timed Defrost always starts at 1 minute past the hour immediately following a defrost timer request for defrost. For example, if the defrost timer requests a defrost cycle at 7:35, the defrost cycle will start at 8:01. The datalogger will record a Defrost event for each log interval in which a Defrost cycle is pending or active (i.e.
Page 66: Initiating A Manual Defrost
Microprocessor Controller Initiating a Manual Defrost With the unit On/Off switch ON: 1. Press the DEFROST key. • If the unit operating conditions allow a manual defrost (e.g. evaporator coil temperature is less than 10 C [50 F]), the unit enters defrost as the Defrost LED turns ON. •...
Page 67: Controller Menu
Microprocessor Controller Controller Menu Navigating the Controller Menu: The controller Main Menu is divided into seven major menus: • Data • Alarm List • Commands • Misc. Functions • Configuration • Datalogger • RMM (Remote Monitoring Modem) State Moving through these seven menus and their submenus and entering commands requires the use of four text keys: F1 key: Press the F1 key each time you want to exit a submenu and/or retrieve current system data for display.
Page 68: Alarm List Menu
Microprocessor Controller • Voltage 1 (Main Power Supply) • Voltage 2 (Main Power Supply) • Voltage 3 (Main Power Supply) • Frequency (Main Power Supply) • Zero Current • Current Phase 1 (Main Power Supply) • Current Phase 2 (Main Power Supply) •...
Page 69: Commands Menu
Microprocessor Controller • ACKNOWLEDGE: An alarm code has been viewed and acknowledged in the alarm list. The Alarm LED remains ON but does not flash. • If the alarm condition is corrected, the Alarm LED will turn OFF and the alarm code disappears from the alarm list.
Page 70 Microprocessor Controller 4. Press F2 or F3 key to scroll to the desired command: • Defrost • PTI (Pretrip) • Manual Function Test 5. Press F4 key to activate the command selected. • Defrost: LCD display shows DEFROST ACTIVATED, NOT ACTIVATED (evaporator temperature above 18 C [50 F]) or ALREADY ACTIVATED (defrost in progress).
Page 71: Manual Function Test, Df Units
Microprocessor Controller • Repeat component start procedure until all required components are ON. For example, to operate unit in Full Cool mode, start the following components: - Condenser Fan - R-134a Compressor - R-23 Compressor - Evaporator Fans • Observe current draw and system performance. •...
Page 72 Microprocessor Controller 1. Press the F3 key to enter the Main Menu. Press F2 key to scroll through Main Menu until “MISC. FUNCTIONS” appears in LCD display. 2. Press F4 key to access the Misc. Functions menu. The first command in the submenu appears in the LCD display: Date Time.
Page 73 Microprocessor Controller 3. Press F4 key to access the Misc. Functions menu. “Date Time” appears in the LCD display. Press F2 key to scroll to “C/F MODE”. 4. Press F4 key to access the C/F Mode screen. C/F Mode screen appears with cursor in the temperature value menu line.
Page 74 Microprocessor Controller 9. Press ESC key to exit the Cargo Data screen. Viewing or Setting Run Time 1. Press the F3 key to enter the Main Menu. 2. Press F2 key to scroll to “MISC. FUNCTIONS”. 3. Press F4 key to access the Misc. Functions menu. “Date Time” appears in the LCD display. Press F2 key to scroll to “RUN TIME”.
Page 75: Configuration Menu
Microprocessor Controller Configuration Menu The Configuration menu displays a list of functions that identifies unit operating features and current settings. The following functions are available: MP-3000 Configuration List, DF Units Text Description Default Range IN RANGE In range limit 1,5°C 0,5°C - 5°C CONT ID Container Id...
Page 76: Datalogger Menu
Microprocessor Controller 6. Repeat steps 4 and 5 to reset additional configuration values. 7. Press ESC key to exit the Cargo Data screen. Datalogger Menu The Datalogger menu contains a list of functions that display unit operating information recorded in the MPC2000 Datalogger or MPC2000ID Integral Datalogger.
Page 77: Rmm State Menu
Microprocessor Controller • Set Log Time: The current Log Time interval appears in the screen. To enter a new log interval: a. Press F4 key with cursor in Log Time menu line. Cursor moves to the end of the menu line and flashes.
Page 78: Pti (Pretrip) Test
Microprocessor Controller PTI (Pretrip) Test CAUTION: The PTI test should only be performed on an empty container! The CRR DF controller contains a special PTI pretrip test that automatically checks unit refrigeration capacity, heating capacity, temperature control, and individual components including the controller display, contactors, fans, protection devices and sensors.
Page 79 Microprocessor Controller CRR Pretrip (PTI) Test Procedure (Continued) LCD Display Display (Shows Approx. Amps for Possible Duration (Test No.) 460V, 60 Hz Unit) Test Description Alarms (Time) Evaporator fans operate until temperature difference between the return and evaporator sensors, and Probe Test return and supply sensors is less than 60 to 600...
Page 80: Temperature Sensors
Microprocessor Controller CRR Pretrip (PTI) Test Procedure (Continued) LCD Display Display (Shows Approx. Amps for Possible Duration (Test No.) 460V, 60 Hz Unit) Test Description Alarms (Time) Unit operates in normal mode with -55 C (-67 F) setpoint. When return air temperature decreases to setpoint, sensor temperatures are recorded in PTI log.
Page 81: Figure 20: 3 Fan Evaporator: Evaporator (Defrost) Sensor Location
Microprocessor Controller AXA0171 Coil support brackets Unit front. Insert sensor at least 75 mm into coil between tube rows 2 and 3 Figure 20: 3 Fan Evaporator: Evaporator (Defrost) Sensor Location Resistance Values for R-134a or R-23 Compressor Discharge Line Sensor Temp.
Page 82 Microprocessor Controller Resistance Values for R-134a or R-23 Compressor Discharge Line Sensor Temp. °F Temp. °C OHMS Temp. °F Temp. °C OHMS 118.4 36465 244.4 3229 33598 3047 125.6 30983 251.6 2877 129.2 28595 255.5 2718 132.8 26413 258.8 2569 136.4 24419 262.4...
Page 83: Manual Emergency Mode Operation
Microprocessor Controller 2K Sensor Resistance Values for Ambient Air Sensors for MPC2000ID and MP3000 Controller Temp. °F Temp. °C OHMS Temp. °F Temp. °C OHMS 42618 53.6 3360 32198 57.2 3094 24532 60.8 2852 18850 64.4 2632 14618 2431 11383 71.6 2347 10.4...
Page 84: Replacing The Eprom Chip (Mpc2000 And Mp3000 Only)
Microprocessor Controller WARNING: High voltage (460/380 volts) is present on the contactors and relays in the control box. To prevent dangerous electrical shock, disconnect the supply power to the unit whenever possible when working in this area. 3. Disconnect cable no. 2 from the controller and main relay board (see electrical schematic). 4.
Page 85: Replacing The Microprocessor Controller
Microprocessor Controller 5. Replace security strip. Then carefully mount new EPROM chip and tighten security strip. 6. Place new EPROM chip ID label over old label on the side of the controller to identify new EPROM. 7. Install datalogger (or back cover) mounting screws. 8.
Page 86: Flash Loading Controller Software
Microprocessor Controller Flash Loading Controller Software Controller software must be flash loaded when software has been revised. To flash load software: 1. Turn the unit On/Off switch OFF. 2. Plug cable from a portable computer with controller software into the data retrieval connector on the control box.
Page 87: Mpc 2000 Id / Mp 3000, Super Freezer "Error Message List
Microprocessor Controller MPC 2000 ID / MP 3000, Super Freezer "Error message list" Error Message Controller Action Power Error, Check 20A Fuses • Controller activates alarm 18 Indicates: • Controller will try to restart unit after 60 minutes. • One or more phases are missing •...
Page 88: Alarm Codes, Descriptions And Corrective Actions
Microprocessor Controller Alarm Codes, Descriptions and Corrective Actions NOTE: NOTE: Sensors used with the MPC2000, MPC2000ID and MP 3000 Controller do not require calibration. Check sensor resistance with an ohmmeter. • Shutdown Alarm (Level 1 Alarm): Alarm light on display flashes and unit stops. Correct alarm condition and acknowledge alarm before restarting.
Page 89 Microprocessor Controller Code Description Corrective Action Return Air Sensor Short Circuit • Check sensor resistance between pins 3 and 4 (Check Alarm) on plug J15. Resistance must be 1000 ohms at 25 C (77 F). • Sensor circuit resistance lower than 200 ohms. •...
Page 90 Microprocessor Controller Code Description Corrective Action R-134 Compressor Current Too Low • Start “Manual Function Test”. (Check Alarm) Make sure the compressor relay energizes. If relay does NOT energize and the LED above • Occurs during Pretrip (PTI) only. the compressor relay is NOT ON, check for a •...
Page 91 Microprocessor Controller Code Description Corrective Action Evaporator Fan Low Speed Current Too High • Open evaporator door and make sure all fans (Check Alarm) rotate freely. • Occurs during Pretrip (PTI) only. • Start “Manual Function Test” and set evaporator motors to low speed.
Page 92 Microprocessor Controller Code Description Corrective Action Condenser Fan Current Too High • Start “Manual Function Test” and set condenser (Check Alarm) fan motor to ON. Make sure the fan starts. • Occurs during Pretrip (PTI) only. • Check fan motor volts and amps. •...
Page 93 Microprocessor Controller Code Description Corrective Action Temperature Too Far from Setpoint • Press SUP/RET key to check supply and return (Check Alarm) air sensor temperatures. Compare temperatures to evaluate unit cooling capacity • After 80 minutes of operation, return air and performance.
Page 94 Microprocessor Controller Code Description Corrective Action Ambient Air Sensor Open Circuit • Check sensor resistance between pins 13 and (Check Alarm) 14 on plug J15. Resistance must be 1,000 ohms at 25 C (77 F). • Sensor circuit resistance is higher than 100,000 ohms.
Page 95 Microprocessor Controller Code Description Corrective Action Compressor Temperature Too High • Operate unit on Cool and check discharge and (Shutdown Alarm) suction pressure gauge readings on R-134a refrigeration system. Check refrigerant charge • R-134a compressor discharge line temperature of R-134a system and R-23 system. is above 130 C (266 F).
Page 96 Microprocessor Controller Code Description Corrective Action Compressor Sensor Short Circuit • Check sensor resistance between pins 9 and (Log Alarm) 10 on plug J15. Resistance must be 100,000 ohms at 25 C (77 F). • Sensor circuit resistance lower than 200 ohms. •...
Page 97 Microprocessor Controller...
Page 98: Electrical Maintenance
Electrical Maintenance Unit Wiring Inspect unit wiring, wire harnesses, and the controller during pre-trip inspection and every 1,000 operating hours to protect against unit malfunctions due to open or short circuits. Look for loose, chaffed or broken wires on the unit; open or short circuits and damaged components on the controller printed circuit board.
Page 99: Condenser Fan
Electrical Maintenance Condenser Fan Check for proper condenser fan rotation by placing a small cloth or sheet of paper against the condenser fan grille on the front of the unit. Proper rotation will blow the cloth or paper away from the grille. Improper rotation will hold the cloth or paper against the grille.
Page 100: Low Pressure Cutout Switch
Electrical Maintenance Low Pressure Cutout Switch: Opens: 0 ± 20 kPa, 0 ± 0.2 bar, 6 in. vacuum to 3 Psig Closes: 70 ± 20 kPa, 0.7 ± 0.2 bar, 10 ± 3 Psig If the low pressure cutout switch is suspected of being defective, replace it with a known good switch.
Page 101 Electrical Maintenance...
Page 102: Refrigeration Maintenance And Service Operations
Refrigeration Maintenance and Service Operations NOTE: The following procedures involve servicing the refrigeration system. Some of these service procedures are regulated by Federal, and in some cases, by State and Local laws. All regulated refrigeration service procedures must be performed by an EPA certified technician, using approved equipment and complying with all Federal, State and Local laws.
Page 103: Leak Detection
Refrigeration Maintenance and Service Operations • High side near the compressor discharge service valve, • High side on the receiver tank. An R-134a gauge manifold set (P/N 204-758) should be dedicated for use with R-134a (HFC) refrigerant only. Leak Detection Leaks can be detected with the use of soap bubbles and with Halogen leak detectors such as model H10G, P/N 204-712 or model H10N, P/N 204-756 (portable).
Page 104: Figure 23: Service Valve Back Seated
Refrigeration Maintenance and Service Operations Full Counterclockwise Figure 23: Service Valve Back Seated 1/2 Turn In Figure 24: Service Valve Open to Port Full Clockwise Figure 25: Service Valve Front Seated...
Page 105: Gauge Manifold Valve Positions
Refrigeration Maintenance and Service Operations Gauge Manifold Valve Positions The gauges indicate low and high side pressures. Operate one or both hand valves to perform the different service operations. Quick Disconnect Access Valve Discharge Service Valve (DSV) Suction Service Valve (SSV) Figure 26: Balancing R-134a System Pressure Quick Disconnect Access Valve Discharge Service Valve (DSV)
Page 106: Figure 28: Gauge Manifold Closed To Center Port
Refrigeration Maintenance and Service Operations Close Hand Valves Figure 28: Gauge Manifold Closed to Center Port Open Hand Valves Figure 29: Gauge Manifold Open to Center Port Quick Disconnect Access Valve Reclaimer with Receiver Tank Discharge Service Valve (DSV) Suction service Valve (SSV) Figure 30: Removing R-134a Refrigerant...
Page 107: R-134A Gauge Manifold Set (With Low Loss Fittings) Attachment And Purging
Refrigeration Maintenance and Service Operations R-134a Gauge Manifold Set (With Low Loss Fittings) Attachment And Purging Thermo King recommends the use of access valves or self-sealing, quick disconnect fittings whenever possible to limit the loss of refrigerant into the atmosphere. A separate gauge manifold set with low loss fittings (P/N 204-758) should be dedicated for use with HFC refrigerants only.
Page 108: Figure 31: Removing Refrigerant
Refrigeration Maintenance and Service Operations AMA295 R-134a Reciprocating Compressor Reclaimer DSV = Discharge Service Valve SSV = Suction Service Valve NOTE: Use quick disconnect access valves on refrigerant hoses. Figure 31: Removing Refrigerant R-23 Scroll Compressor R-134a Reciprocating Compressor DSV = Discharge Service Valve SSV = Suction Service Valve NOTE: Use quick disconnect access valves on refrigerant hoses.
Page 109: Gauge Manifold Set Removal
Refrigeration Maintenance and Service Operations NOTE: These gauges may be removed and reinstalled without additional purging so long as a slight positive pressure remains in the manifold and hoses when removed from the unit. Gauge Manifold Set Removal NOTE: To ensure minimum refrigerant release to the atmosphere, THE SYSTEM SHOULD BE RUNNING.
Page 110: Discharge Pressure Regulator Test And Adjustment
Refrigeration Maintenance and Service Operations NOTE: With empty box and all components in R23 system always verify correct charge in R23 system according to pressure readings listed below R-23 Refrigeration System — Standby (Unit OFF) and Cool Operation Container Temp. Ambient Temp.
Page 111: Checking Compressor Oil
Refrigeration Maintenance and Service Operations Protective cap Inlet Adjustment Fitting for checking upstream pressure (some models) Spring Seat Bellows Outlet Figure 33: Discharge Pressure Regulator Checking Compressor Oil CAUTION: • Use ONLY Polyol Ester based refrigeration compressor oil, P/N 203-433. •...
Page 112: Removing Excess Compressor Oil
Refrigeration Maintenance and Service Operations Normal R-134a and R-23 compressor oil level: Sight glass is 1/4 to 3/4 full. Figure 34: Checking Compressor Oil Level 3. After stopping the compressor, adjust the low side pressure to 21 kPa, 0.21 bar, 3 psig using the service gauge set.
Page 113: Refrigerant Leak Test Procedure
Refrigeration Maintenance and Service Operations Add and Remove Compressor Oil at the Compressor Oil Fitting Figure 35: Adjusting Compressor Oil Level Refrigerant Leak Test Procedure Use a reliable Halogen leak detector such as model H10G, P/N 204-712 or 204-756 (portable), to leak test the refrigeration system.
Page 114: Low Side Pump Down (R-134A Compressor Only)
Refrigeration Maintenance and Service Operations Figure 36: Testing for Refrigerant Leaks 8. Connect the charging hose to a source of nitrogen. Adjust the pressure regulator to 1380 kPa, 13.80 bar, 200 psig. See “Using Pressurized Nitrogen” in this manual chapter. CAUTION: Nitrogen (N2) is under 15,170 kPa, 151.70 bar, 2200 psig pressure in a full cylinder at 21 C (70 F).
Page 115: Refrigerant Charge Inspection
Refrigeration Maintenance and Service Operations Refrigerant Charge Inspection The refrigerant charge should be checked during pretrip and routine maintenance inspections. A low charge of refrigerant will cause the container temperature to rise due to the lack of liquid refrigerant at the expansion valve even though the unit is operating in a cooling mode.
Page 116: Checking The R-23 Refrigerant Charge
Refrigeration Maintenance and Service Operations Checking the R-23 Refrigerant Charge The R-23 refrigerant charge should be checked with the container empty, the unit OFF and all refrigeration system components above -5 C (23 F). The R-134a compressor must not have been operated within the past 30 minutes and there must not be frost on the plate-type R-134a / R-23 heat exchanger tubing.
Page 117: Refrigerant Recovery
Refrigeration Maintenance and Service Operations NOTE: Use the lower receiver tank sight glass to check or add refrigerant only on an operating unit that is unable to maintain a -55 C to -60 C (-62 F to -76 F) load temperature. See “R-23 Charging Procedure for Partially Charged Units on Loaded Containers”...
Page 118: R-134A Vapor Recovery
Refrigeration Maintenance and Service Operations 6. Close the service valve on the R-23 recovery bottle. 7. Backseat the discharge service valve. Disconnect the refrigerant hose from the discharge valve. 8. With system pressures below 100 kPa, 1.00 bar, 15 psig, the R-23 system components can be serviced.
Page 119: Compressor Oil Color Code
Refrigeration Maintenance and Service Operations • MOISTURE. Moisture in a system will cause metal corrosion and metal plating. It can freeze in the expansion valve and cause intermittent operational problems. It reacts in the oil to begin acid buildup. • DIRT, DUST, METAL PARTICLES, OTHER FOREIGN MATERIALS.
Page 120: Unit Evacuation
Refrigeration Maintenance and Service Operations 7. Open Evacuation Station valves (V1, V3, and V4). It is only necessary to open valve V2 when a reading on the Micron Meter is desired. This is especially true when starting to evacuate a unit and large amounts of moisture and oil will be passing by the sensor.
Page 121: Pressure Rise Test
Refrigeration Maintenance and Service Operations Pressure Rise Test Evacuate the system and close valve V1. With valves V3 and V4 open, the pump is isolated and the system is held under a vacuum. If the Micron Meter rises, one of the following conditions exist. Watch the movement of the Micron Meter needle.
Page 122: Heat Saves Time
Refrigeration Maintenance and Service Operations Close the vacuum valve and watch the movement of vacuum gauge needle. If needle shows a pressure rise but finally levels off to a constant pressure, the system still contains too much moisture. Dehydration and additional evacuation time are required.
Page 123: R-134A Evacuation Station Removal
Refrigeration Maintenance and Service Operations CAUTION: Be sure to add the correct refrigerant to the system. 6. Weigh the tank of refrigerant. 7. Check the unit data plate for the required weight of refrigerant charge then subtract the amount of the charge to be input to your unit from the total weight of the tank of refrigerant.
Page 124: R-23 Refrigeration System Charging
Refrigeration Maintenance and Service Operations CAUTION: Be sure to add the correct refrigerant to the system. 4. Set the R-134a refrigerant tank for liquid charging. Open the refrigerant tank hand valve. 5. Start and operate the unit in the COOL mode. CAUTION: Do NOT operate the unit on cooling unless: •...
Page 125: R-23 Evacuation Station Removal
Refrigeration Maintenance and Service Operations NOTE: If a scale is not available, the R-23 system can be accurately charged by pressure. Add refrigerant to the receiver tank until the unit suction and discharge pressure gauges indicate 1700 kPa, 17 bar, 247 psig. 8.
Page 126: Final Charging Procedure For Partially Charged Units On Empty Containers
Refrigeration Maintenance and Service Operations 10. Close the refrigerant tank hand valve. 11. Back seat the suction service valve. Then stop the compressor. 12. Remove the hoses from the receiver outlet and discharge service valves. Cap the receiver outlet service port. 13.
Page 127: Using Pressurized Nitrogen
Refrigeration Maintenance and Service Operations 3. Set the R-23 refrigerant tank for gas charging. Open the refrigerant tank hand valve. 4. Observe the bottom receiver tank sight glass. When refrigerant is visible in the bottom of the lower sight glass, close the hand valve on the refrigerant tank. CAUTION: Immediately stop adding refrigerant when refrigerant is visible in the bottom of the lower sight glass.
Page 128: Dehydration, Pressure Testing, Purging And Soldering Procedure
Refrigeration Maintenance and Service Operations Dehydration, Pressure Testing, Purging and Soldering Procedure Dehydration, pressure testing, purging and soldering can be accomplished with the use of dry nitrogen (N2). The proper equipment and application of equipment is of greatest importance. 1. Attach gauge manifold set (refer to “Gauge Manifold Set Attachment and Purging” for proper procedure for connecting to compressor).
Page 129: Compressor Replacement (R-134A Or R-23 Systems)
Refrigeration Maintenance and Service Operations Compressor Replacement (R-134a or R-23 Systems) Removal 1. Close the suction service valve and pump down the compressor: • R-134a Compressor: Pump down the compressor to -35 kPa, -0.35 bar, 10 in. vacuum. • R-23 Compressor: Pump down the compressor to 0 to 21 kPa, 0.0 to 0.2 bar, 0 to 3 psig. CAUTION: Do NOT allow the R-23 scroll compressor to operate for more than 10-20 seconds.
Page 130: Condenser Coil Replacement (R-134A Or R-23 Systems)
Refrigeration Maintenance and Service Operations 6. Check for refrigerant leaks around the compressor assembly and gasket connections. 7. If no leaks are found, recover the refrigerant used for the leak test (see “Refrigerant Recovery” in this chapter). Because this refrigerant gas will contain some air, place it in a contaminated refrigerant bottle to be reclaimed later.
Page 131: Dehydrator (Filter Drier) Replacement (R-134A Or R-23 Systems)
Refrigeration Maintenance and Service Operations Dehydrator (Filter Drier) Replacement (R-134a or R-23 Systems) Removal 1. Do one of the following: • R-134a System: Close the liquid line service valve and pump down the low side. Open the outlet valve slightly to equalize the pressure between 10 and 20 kPa, 0.10 and 0.20 bar, 1 and 3 psig. •...
Page 132: Installation
Refrigeration Maintenance and Service Operations Installation 1. Remove the sealing caps from the new dehydrator. 2. Do one of the following: • R-134a System: Apply clean compressor oil to dehydrator threads. Assemble new dehydrator to lines. Finger tighten mounting nuts. •...
Page 133: Installation
Refrigeration Maintenance and Service Operations 4. Heat and unsolder the equalizer line from expansion valve. 5. Heat and unsolder the liquid line inlet and outlet connections to expansion valve. 6. Remove expansion valve from unit. Installation 1. Clean the liquid lines and equalizer lines for soldering. 2.
Page 134: Installation
Refrigeration Maintenance and Service Operations 3. Heat and unsolder liquid inlet and outlet line connections. 4. Heat and unsolder the suction line connections. 5. Lift the heat exchanger assembly from the unit. Installation 1. Clean the tubes for soldering. 2. Place the heat exchanger assembly in the unit and install the mounting hardware. 3.
Page 135: Receiver Tank Replacement (R-134A Or R-23 System)
Refrigeration Maintenance and Service Operations CAUTION: Any time the discharge valve is front seated, disconnect the unit power source to prevent accidental compressor start-up. 4. Do one of the following: • Pressurize the R-134a system on the low side and check for leaks •...
Page 136: Installation
Refrigeration Maintenance and Service Operations • R-134a Compressor: Pump down the compressor to -35 kPa, -0.35 bar, 10 in. vacuum. • R-23 Compressor: Pump down the compressor to 0 to 21 kPa, 0.0 to 0.2 bar, 0 to 3 psig. CAUTION: Do NOT allow the R-23 scroll compressor to operate for more than 10-20 seconds.
Page 137: Low Pressure Cutout Switch Replacement (Crr Df Mpc2000Id And Mp3000 Units Only)
Refrigeration Maintenance and Service Operations CAUTION: Use a heat sink or wrap the valve with wet rags to prevent damage to the new valve. 3. Release a small amount of refrigerant from the receiver tank to pressurize the liquid line. Check for leaks (see “Refrigerant Leak Test Procedure”...
Page 138: Structural/Accessory Maintenance
Structural/Accessory Maintenance Mounting Bolts Check and tighten all unit, compressor, and fan motor mounting bolts during pretrip inspections and every 1,000 operating hours. Unit mounting bolts should be tightened to a torque value of 204 N.m (150 ft-lb). Compressor and fan motor mounting bolts should be tightened to a torque value of 20 to 21 N.m (15 to 20 ft-lb).
Page 139: Evaporator Coil
Structural/Accessory Maintenance Also inspect the directional airflow condenser grille for damage. This grille directs the condenser airflow out and away from the unit to increase the efficiency of the condenser coil by preventing the recirculation (short cycling) of warm air through the coil. Abnormally high head pressures may result if this special condenser grille is damaged or missing.
Page 140: Vacuum Valve
Structural/Accessory Maintenance Vacuum Valve The vacuum valve draws outside air into the container to prevent the container from developing negative atmospheric pressure as the cargo temperature decreases toward -60 C (-76 F). Check the vacuum valve during the pretrip inspection to make sure the ball inside the valve moves freely. AXA0421 AXA0426 Vacuum valve (Located behind the...
Page 141 Structural/Accessory Maintenance...
Page 142: Mechanical Diagnosis
Mechanical Diagnosis Condition Possible Cause Remedy One or Both Compressors Controller on; unit start sequence still Wait at least 1 minute for both do not operate — no timing compressors to start amperage draw No power to unit (condenser and Locate fault and repair: power source, evaporator fans do not operate) power plug, main circuit breaker, motor...
Page 143 Mechanical Diagnosis Condition Possible Cause Remedy Compressor contactor Low line voltage Increase line voltage to at least 90% of burned out compressor motor rating Excessive line voltage Reduce line voltage to at least 110% of compressor motor rating Short cycling Eliminate cause of short cycling Unit short cycles Controller out of calibration...
Page 144: Refrigeration System Diagnosis
Refrigeration System Diagnosis Condition Possible Cause Remedy R-134a or R-23 System Shortage of refrigerant Repair leak and recharge Compressor operating in Compressor motor contacts frozen Clean points or replace contactor a vacuum (R-134a compressor only) (unit not cooling) Defective liquid line solenoid valve Repair or replace liquid line solenoid valve Compressor inefficient...
Page 145 Refrigeration System Diagnosis Condition Possible Cause Remedy Load temperature too high One or both compressors do not operate See "Mechanical Diagnosis" and unit (unit not cooling) wiring schematic Shortage of refrigerant Repair leak and recharge (R-134a or R-23 system) Overcharge of refrigerant Purge system (R-134a or R-23 system) Air in system...
Page 146 Refrigeration System Diagnosis Condition Possible Cause Remedy Rapid cycling between Air short cycling through evaporator Check and correct cargo load Cool and Null modes Defective controller or main relay board Diagnose main relay board and controller. Replace defective component Short cycling See "Unit Short Cycles"...
Page 147 Refrigeration System Diagnosis...
Page 148: Electrical, Refrigeration And Controller Menu Flow Diagrams
Electrical, Refrigeration and Controller Menu Flow Diagrams Dwg No. Drawing Title Rev. Page 2C33056H01 CRR DF MPC2000 Controller Diagram 2C33057H01 CRR DF MPC2000 Main Relay Board Electrical Diagram 2C33059H01 CRR DF MPC2000 Unit Wiring Schematic 5D52336 CRR DF MP3000A Controller Diagram 5D52338 CRR DF MP3000A Main Relay Board Electrical Diagram 5D52335...
Page 149 Electrical, Refrigeration and Controller Menu Flow Diagrams This page intentionally left blank.
Page 150 CRR DF MPC2000 Controller Diagram...
Page 151 CRR DF MPC2000 Main Relay Board Electrical Diagram...
Page 152 CRR DF MPC2000 Unit Wiring Schematic...
Page 153 CRR DF MP3000A Controller Diagram...
Page 154 CRR DF MP3000A Main Relay Board Electrical Diagram...
Page 155 CRR DF MP3000A Unit Wiring Schematic...
Page 156: Legend Of Crr Df Refrigeration System Components
Legend for CRR DF Refrigeration System Components — Page 1 of 2 Unit Compartments R-23 Refrigeration Circuit Components A. Evaporator Section 21. Plate Heat Exchanger, R-134a/R-23 B. Condenser Section 23. R-23 Scroll Compressor 24. Sight Glass Controller and Temperature Sensors 25.
Page 157: Crr Df Refrigeration System Components - Page 2 Of 2
CRR DF Refrigeration System Components — Page 2 of 2...
Page 158: Legend Of Crr Df Off Cycle Standby Flow And Pressure Diagram
Legend for CRR DF Off Cycle Standby Flow and Pressure Diagram — Page 1 of 2 R-134a Refrigeration Circuit Components R-23 Refrigeration Circuit Components Legend for CRR DF Off Cycle Standby Flow and Pressure Diagram 1. R-134a Reciprocating Compressor 21. Plate Heat Exchanger, R-134a/R-23 2.
Page 159: Crr Df Off Cycle Standby Flow And Pressure Diagram - Page 2 Of 2
CRR DF Off Cycle Standby Flow and Pressure Diagram — Page 2 of 2 CRR DF Off Cycle Standby Flow and Pressure Diagram...
Page 160: Legend For Crr Df Full Cool Flow And Pressure Diagram - Page 1 Of 2
Legend for CRR DF Full Cool Flow and Pressure Diagram — Page 1 of 2 Legend for CRR DF Full Cool Flow and Pressure Diagram R-134a Refrigeration Circuit Components R-23 Refrigeration Circuit Components 1. R-134a Reciprocating Compressor 21. Plate Heat Exchanger, R-134a/R-23 2.
Page 161: Crr Df Full Cool Flow And Pressure Diagram - Page 2 Of 2
CRR DF Full Cool Flow and Pressure Diagram — Page 2 of 2...
Page 162: Legend For Crr Df Evacuation Station And Unit Connections - Page 1 Of 2
Legend for CRR DF Evacuation Station and Unit Connections — Page 1 of 2 Evacuation Stations R-134a Refrigeration Circuit Components R-23 Refrigeration Circuit Components 1. R-134a Reciprocating Compressor 21. Plate Heat Exchanger, R-134a/R-23 NOTE: Special, self-sealing quick disconnect couplers are required for R-134a systems 2.
Page 163: Crr Df Evacuation Station And Unit Connections
CRR DR Evacuation Station and Unit Connections — Page 2 of 2...
Page 164 MPC2000 and 3000A Menu Flow Diagram...
Page 165 Ingersoll Rand’s Climate Solutions sector delivers energy-efﬁ cient HVACR solutions for Ingersoll Rand’s Climate Solutions sector delivers energy-efﬁ cient HVACR solutions for Ingersoll Rand’s Climate Solutions sector delivers energy-efﬁ cient HVACR solutions for customers globally. Its world class brands include Hussmann, a manufacturer of refrigeration customers globally.

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Ingersoll-Rand Thermo King CRR DF MPC2000ID Maintenance Manual

List of Figures

Introduction

Safety Precautions

Service Guide

Specifications

Unit Description

Operating Instructions

Table of Contents

Microprocessor Controller

Electrical Maintenance

Refrigeration Maintenance and Service Operations

Table of Contents

Structural/Accessory Maintenance

Mechanical Diagnosis

Refrigeration System Diagnosis

Electrical, Refrigeration and Controller Menu Flow Diagrams

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