Page 2 If further information is required, Thermo King Corporation should be consulted. Sale of product shown in this manual is subject to Thermo King’s terms and conditions including, but not limited to, the Thermo King Limited Express Warranty. Such terms and conditions are available upon request.
Page 3 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 5: Table Of Contents
Table of Contents List of Figures ................9 Safety Precautions .
Page 6 Table of Contents MP-3000a Controller ..............51 Controller Description .
Page 7 Table of Contents MP-3000a Controller (continued) Datalogger Menu ..............91 Viewing the Datalogger Menu .
Page 8 Table of Contents Structural/Accessory Maintenance (continued) Condenser Fan Location ............. . . 149 Humidify System (Option) .
Page 9: List Of Figures
List of Figures Figure 1: Nameplate and Warning Locations ..........15 Figure 2: Physical Specifications .
Page 10 List of Figures Figure 50: Air Exchange System ............148 Figure 51: Condenser Fan Blade Placement .
Page 11: Safety Precautions
Safety Precautions General Practices Refrigerant 1. Always wear goggles or safety glasses. When removing any refrigerant from a unit, use a Refrigerant liquid and battery acid can recovery process that prevents or absolutely permanently damage the eyes (see First Aid minimizes the refrigerant that can escape to the under Refrigerant Oil).
Page 12: Refrigerant Oil
Safety Precautions Refrigerant Oil Electrical Observe the following precautions when working High Voltage with or around refrigerant oil: When servicing or repairing a refrigeration unit, • Do not allow refrigerant oil to contact your the possibility of serious or even fatal injury from eyes.
Page 13: Low Voltage
Safety Precautions First Aid Low Voltage Immediate action must be initiated after a person Control circuits are low voltage (24 Vac and 12 has received an electrical shock. Obtain Vdc). This voltage potential is not considered immediate medical assistance if available. dangerous, but the large amount of current available (over 30 amperes) can cause severe The source of shock must be immediately...
Page 14: Controller Repair
Safety Precautions Controller Repair Welding of Units or Containers When servicing the controller, it is necessary to Whenever electric welding is to be performed on ensure that electrostatic discharges are avoided. any portion of the refrigeration unit, container or Potential differences considerably lower than container chassis with the refrigeration unit those which produce a small spark from a finger attached, it is necessary to ensure that welding...
Page 15: Unit Decals
Serial number decals, refrigerant type decals and • Electric Motors: Nameplate attached to the ® motor housing. warning decals appear on all Thermo King equipment. These decals provide information that • Compressor: Nameplate on front of the may be needed to service or repair the unit.
Page 16 Safety Precautions...
Page 17: Service Guide
Service Guide Every Annual/ Pre-Trip 1,000 Inspect/Service These Items Yearly Hours Electrical • Perform a controller Pre-trip Inspection (PTI) check. • • • Visually inspect condenser fan and evaporator fan rotation. • • • Visually inspect electrical contacts for damage or loose connections. •...
Page 18 Service Guide...
Page 19: Model Features
Model Features CRR-40 Model Features Features X=Included X X X X X X 460-380V/3Ph 60-50 Hz, 18.3 m (60 ft) Power Cable and Plug X X X X X X 25 Amp Main Power Circuit Breaker X X X X X X Automatic Phase Selection Control X X X X X X D3DS Copeland Discus Compressor w/5.60 kW (7.5 Hp) Motor...
Page 20 Model Features...
Page 21: Specifications
Specifications System Net Cooling Capacity — Full Cool CRR-40 Models with Three Evaporator Fans — Air Cooled Condensing* 460/230V, 3 Phase, 60 Hz Power 380/190V, 3 Phase, 50 Hz Power Net Cooling Capacity Power Net Cooling Capacity Power Return air to Consp Consp evaporator coil...
Page 22 Specifications CRR-40 Models with Three Evaporator Fans — Water Cooled Condensing Option with 37.8 C (100 F) Water Temperature* 460/230V, 3 Phase, 60 Hz Power 380/190V, 3 Phase, 50 Hz Power Net Cooling Capacity Power Net Cooling Capacity Power Return air to Consp Consp evaporator coil...
Page 23: Evaporator Airflow
Specifications System Net Heating Capacity* 460/230V, 3 Phase, 60 Hz Power 380/190V, 3 Phase, 50 Hz Power Heating Capacity Heating Capacity Heater Type Watts Kcal/hr BTU/hr Watts Kcal/hr BTU/hr CRR-40 w/2 Evap Fans* 5,780 4,971 19,727 4,800 4,128 16,382 CRR-40 w/3 Evap Fans* 6,080 5,230 20,750...
Page 24: Refrigeration System
Specifications Refrigeration System Compressor Model No.: D3DST-075E-TFD, Semi-hermetic Reciprocating with Copeland Discus® Valve Design Refrigerant Charge: Standard Receiver Tank 4.7 Kg (10.35 lb) R-134a Water-Cooled Condenser-Receiver Tank 5.2 Kg (11.5 lb) R-134a Compressor Oil Capacity* 4.6 liter, 1.22 gal. (155.5 oz.) Compressor Oil Type Polyol Ester Based Type** (required) Refer to Tool Catalog High Pressure Cutout Switch:...
Page 25 Specifications Normal R-134a System Suction Pressures (D3DS Copeland Reciprocating Compressor)* Container Operating Mode Ambient Temp. Suction Pressure Temp. Cool 27 to 38 C, 80 to 100 F 110 to 140 kPa, 1.10 to 1.40 bar, 16 to 20 psig 21 C (70 F) Cool 16 to 27 C, 60 to 80 F 95 to 125 kPa, 0.95 to 1.25 bar, 14 to 18 psig...
Page 26: Controller
Specifications Controller Temperature Controller: MPC2000ID or MP-3000a microprocessor with programming key-pad, mode indicators, LED display and LCD display for displaying unit operating and cargo Type information. Setpoint Range -29.0 to +29.0 C (-20.2 to +84.2 F) Digital Temperature Display -60.0 to +80.0 C (-76.0 to +176.0 F) Controller Software (Original Equipment): See controller identification decal Version...
Page 27 Specifications Controller (Continued) Defrost Termination: Evaporator Coil Sensor* Chill Mode: Terminates defrost when coil sensor temperature rises to 30 C (86 F); or exceeds 18 C (65 F) for 25 minutes Frozen Mode: Terminates defrost when coil sensor temperature rises to 18 C (65 F); or exceeds 8 C (46 F) for 25 minutes Interval Timer** Terminates defrost after 90 minutes at 60 Hz operation if...
Page 28: Electrical System
Specifications Electrical System Compressor Motor: Type 460/380V, 60/50 Hz, 3 Phase Kilowatts 5.60 kW @ 460V,60 Hz Horsepower 7.5 hp @ 460V,60 Hz 1750 rpm @ 60 Hz Full Load Amps 15.5 amps @ 460V,60 Hz; 15.5 amps @ 380V, 50 Hz Locked Rotor Amps 83 amps —...
Page 29: Dehumidify And Humidify Systems (Options)
Specifications Dehumidify and Humidify Systems (Options) Dehumidify System: Turn Mode On and Off Set from CONTROL line of the Setpoint menu of the controller Control Range (HUMSP) Setting Setpoint adjustable from 60% to 99% Relative Humidity Humidify System (Option): Turn Mode ON and OFF Set from CONTROL line of the Setpoint menu of the controller Operating Temperature Range 0 to 60 C (32 to 140 F)
Page 30: Figure 2: Physical Specifications
Specifications Physical Specifications (Continued) Unit Dimensions: A = Flange Width 2025.5 mm (79.74 in.) B = Gasket Width 1935 mm (76.18 in.) C = Unit Width 1894 mm (74.57 in.) D = Flange Height 2235.2 mm (88.00 in.) E = Gasket Height 2140 mm (84.25 in.) F = Unit Height 2094 mm (82.44 in.)
Page 31: 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 32 Specifications...
Page 33: Unit Description
Unit Description General Description Dual Speed Evaporator Fans CRR models are equipped with either 2 or 3 Model CRR-40 units are all-electric, single-piece, evaporator fans. All models feature 2-speed refrigeration units with bottom air supply. Each motors. The evaporator fans operate continuously unit is designed to cool and heat containers for to circulate air inside the container.
Page 34: Usda Cold Treatment Temperature Recording
Unit Description USDA Cold Treatment Temperature Sixteen general purpose keys are used to enter and Recording scroll through the controller menu tree and message text; initiate Pretrip and Function tests; The datalogger includes provisions for the use of enter new setpoint temperature; and enter trip up to four USDA sensors.
Page 35: Operating Modes
Unit Description Operating Modes Chill Loads: Controller Setpoint at -9.9 C (14.1 F) or Above NOTE: See Controller chapter for complete Temperature control by the controller is based on sequence of operation. the supply air sensor temperature, the setpoint, the A sequence start of the required loads occurs modulation temperature range and the pull-down during initial start-up of the unit and when a...
Page 36: Figure 3: Unit Front View
Unit Description AJA1403 Evaporator Access Door, 1018 mm (40.08 in.) Supply Air Sensor Probe Holder Left Hand (behind Wide with Two Latches — Models with Two compressor) Evaporator Fans Evaporator Access Door, 1399 mm (55.04 in.) Supply Air Sensor Probe Holder Right Hand Wide with Three Latches —...
Page 37: Figure 4: Evaporator Section For Models With Three Evaporator Fans-Front View
Unit Description AJA1404 Evaporator Fan Blade Evaporator Fan Motor Return Air Sensor Humidity Sensor (Option) Humidity System Compressor (Option) Figure 4: Evaporator Section for Models with Three Evaporator Fans—Front View...
Page 38: Figure 5: Evaporator Section For Models With Two Evaporator Fans - Front View
Unit Description AJA1405 Return Air Sensor Humidity Sensor (Option) Evaporator Fan Blade Evaporator Fan Motor Humidity System Compressor (Option) Figure 5: Evaporator Section for Models with Two Evaporator Fans — Front View...
Page 39: Figure 6: Humidity System Option
Unit Description AJA1406 Evaporator Drain Hose Fill Cap Water Tank Heater Tank Overflow Hose Drain Cock Water Tank Water Filter Water Supply Hose Air Compressor 10. Liquid Spray Nozzle Figure 6: Humidity System Option...
Page 40: Figure 7: Refrigeration System
Unit Description AJA1905 1. Expansion Valve Coil Valve 2. Evaporator Coil Solenoid Valve Water-Cooled Condenser-Receiver Tank (CRR-40 3. Condenser Coil 119A & CRR-40 800) 4. Condenser Tank Fusible Plug 5. Compressor Service Port Fitting and Cap 6. Heat Exchanger Water Outlet Coupling 7.
Page 41: Figure 8: Water-Cooled Condenser-Receiver Tanks
Unit Description Evaporator Coil (units w/3 evap fans) KVQ Valve Solenoid Valve (humidity control, normally Condenser Tank (800, 800A/B/C/D) open, Danfass valve) Expansion Valve (or use Kit 60-253 for Compressor replacement of brass valves) Condenser Coil (800, 800A/B/C) 10. Solenoid Valve (liquid, normally closed) Dehydrator Solenoid Valve (pulse) Heat Exchanger (800B/C/D)
Page 42: Figure 9: Controller And Remote Monitoring Modem
Unit Description AJA1409 Remote Monitoring Modem Control Box Cover and Controller Keyboard Decal RMM Communication Cable Special Function Keypad Battery Cable Connection to Controller 10. General Purpose Keypad Cable No. 2 Connection to Controller LCD Display (Setpoint Temperature, Message and Controller Main Menu Tree Display) Download Cable Connection to Controller 12.
Page 43: Figure 10: Unit Control Box
Unit Description AJA1410 Condenser Fan On/Off Switch (OFF=Water-cooled Condenser Operation) (Option) Communications Connector for Data Retrieval Unit On/Off Switch Circuit Breaker Main Relay Board 12 Vdc Battery Control Power Transformer Compressor Contactor 25 Ampere Main Power Circuit Breaker Figure 10: Unit Control Box...
Page 44: Figure 11: Unit Back View
Unit Description AJA1411 Evaporator Grille Unit Gasket Top Rear Plate Bottom Rear Plate Sensor Connector Assembly Controller Communications and Data Retrieval Connection USDA1 Sensor Connection USDA2 Sensor Connection USDA3 Sensor Connection USDA4 Sensor Connection Figure 11: Unit Back View...
Page 45: Operating Instructions
Operating Instructions Unit Controls defrost. Otherwise the controller will display “Defrost Not Activated” in the LCD display and the unit will continue normal operation. Unit Control Box 5. SETPOINT KEY. Press this key to change the 1. UNIT ON/OFF SWITCH. setpoint.
Page 46: Other Unit Controls
Operating Instructions Other Unit Controls 1. EVAPORATOR OVERHEAT SWITCH. A temperature switch near the evaporator coil opens to de-energize the heater contactor if the evaporator temperature reaches 54 C (130 F). The switch closes (resets) when the evaporator temperature decreases to 32 C (90 F). AJA1412 Unit Instruments 1.
Page 47: Pretrip Inspection
Operating Instructions • Compressor Discharge Temperature 6. FUSIBLE PLUG FOR HIGH PRESSURE Control (Chill Mode Only): RELIEF. A fusible plug is installed in the water-cooled condenser-receiver tank to avoid A. Liquid injection is activated at compressor excessive pressure build-up within the discharge temperatures between 115 C and refrigeration system from extraordinary and 125 C (239 F and 257 F).
Page 48 Operating Instructions 2. If the controller calls for cooling, the CAUTION: Air or water spray jet pressure compressor motor starts and the liquid line should not be high enough to damage solenoid energizes (opens). If the unit starts in (bend) coil fins. Modulation Cool, compressor start-up can be delayed up to 3 minutes while the KVQ valve 6.
Page 49: Starting The Unit And Adjusting The Controller Setpoint
Operating Instructions NOTE: If the F4 key is not pressed within 30 • If an operating problem occurs during the seconds, the controller will default (return) Pretrip Test, the Alarm LED will turn ON to the previous setpoint. If this occurs, repeat and FLASH.
Page 50: Loading Procedure
Operating Instructions Loading Procedure 3. Switch the Unit On/Off switch to ON position. Check for condenser fan and evaporator fan 1. Make sure the Unit On/Off switch is OFF motor operation (see “Condenser Fan and before opening the container doors. (The unit Evaporator Fan Rotation”...
Page 51: Mp-3000A Controller
MP-3000a Controller Controller Description • F3 key: Press the F3 key, then press another general purpose key to enter the The MPC2000ID and MP-3000a are both second letter shown on the key. advanced micro-processor controllers that have • F4 key: Press the F4 key, then press been specially developed for the control and another general purpose key to enter the monitoring of refrigeration units.
Page 52 MP-3000a Controller Text Input Example: To enter THERMO in • SETPOINT key: Press to enter Setpoint an information screen: Menu. The first line of the Setpoint Menu is the setpoint temperature. Press F2 or F3 a. Enter “T” by pressing F3 key, then key to scroll up or down through the menu pressing STU key.
Page 53 MP-3000a Controller 8. Replaceable sensors: Return air, left hand 20. Flash memory: Flash program memory allows supply air, right hand supply air, evaporator the application software to be updated without coil (defrost), condenser coil, ambient air and replacing a EPROM chip on the controller. compressor discharge line temperature sensors Application software can be updated in the are field replaceable.
Page 54: Status Indicator Leds
MP-3000a Controller Data Recording and Downloading • Miscellaneous Functions Menu: Menu Data screens in this group display date/time, C/F, cargo data, program version and run The controller’s datalogger can record sensor time (hourmeters) information. temperatures as well as loss of power, alarms, •...
Page 55: General Theory Of Operation
MP-3000a Controller Chill Loads (Setpoint at -9.9 C Trip data from separate units is denoted by the [14.1 F] and Above) identification information entered into the controller at the beginning of the trip via the The unit operates on Cool with Modulation and general purpose keypad.
Page 56: Frozen Loads (Setpoint At -10 C [14 F] And Below)
MP-3000a Controller Temperature Control Accuracy and Frost Compressor Liquid Injection Protection During compressor operation, a liquid injection The PID algorithm generally minimizes container system injects refrigerant into the suction line to temperature fluctuations to +/- 0.1 C (+/- 0.2 F). protect the compressor for excessively high Additional frost protections is provided by pulsing operating temperatures.
Page 57: Evaporator Fan Control
MP-3000a Controller Initial Unit Start-up and Normal Operation • Evaporator fans operate on LOW speed at (Standard) setpoints of -10 C (14 F) and below. If the Economy mode is ON and the unit is in Power Limit is active during the compressor the Null mode, the controller STOPS the start-up in both the Chill and Frozen modes.
Page 58: Probe Test
MP-3000a Controller The Economy Mode also modifies the NOTE: A manual Probe Test can be performed temperature control algorithm on frozen loads to by a technician by selecting Sensor Check from extend the Null mode. The unit continues on Cool the Manual Test Function menu.
Page 59: Continuous Temperature Control Operation
MP-3000a Controller NOTE: When the setpoint appears in the means the unit operating mode can NOT be LED display, both the Return and Supply predicted based ONLY on the setpoint and supply LEDs are lit. air temperature. • The LED then shows the controlling air sensor At setpoints of -9.9 C (14.1 F) and above, the temperature.
Page 60: Frozen Loads - Controller Setpoint At -10 C (14 F) And Below
MP-3000a Controller • Supply air sensor control algorithm increases temperature control accuracy and protection against frost damage (see “Chill Loads” under General Theory of Operation in this chapter). • Controller pulses electric heaters ON and OFF for additional frost protection if the return air temperature decreases to within 0.3 C (0.5 F) of setpoint (see “Chill Loads”...
Page 61: Figure 15: Frozen Load Control Sequence (Setpoints At -10C [14 F] And Below)
MP-3000a Controller • Controller cycles a single-speed condenser fan ON for 2 to 30 seconds every 30 seconds when the Condenser Fan switch is in the FAN AIR position. The amount of ON time depends on the condenser coil, ambient and compressor discharge temperatures.
Page 62: Operating Mode Function Chart - Standard Operation
MP-3000a Controller Operating Mode Function Chart - Standard Operation Chill Loads Setpoints at -9.9 Frozen Loads C (14.4 F) and Above Setpoints at -10.0 C (14.0 F) and Below Cool w/Mod Heat Defrost Cool Null Defrost Unit Function • • Evaporator Fans HIGH SPEED •...
Page 63: Operating Mode Function Chart - Optional Feature Operation
MP-3000a Controller Controller energizes electric heaters for frost protection, heat and defrost modes: • Frost Protection (during compressor operation): If return air temperature decreases to within 0.3 C (0.5 F) of setpoint, controller PULSES heaters ON and OFF on a 60 second duty cycle. •...
Page 64: Defrost
MP-3000a Controller Defrost - Defrost timer resets if the unit is Off more than 12 hours, setpoint is changed more than 5 The evaporator coil sensor temperature must be C (8.9 F) or PTI Pretrip test occurs. below 18 C (65 F) to initiate a Demand Defrost or Manual Defrost.
Page 65: Changing The Setpoint
MP-3000a Controller Changing the Setpoint Initiating a Manual Defrost NOTE: Humidity control, humidity setpoint and With the unit On/Off switch ON: economy mode can also be set from the Setpoint 1. Press the DEFROST key. menu. See “Setpoint Menu” under Menu Operating Instructions in this chapter.
Page 66: Displaying Alternate Fahrenheit (F) Or Celsius (C) Temperatures
MP-3000a Controller Displaying Alternate F1 key: Press the F1 key each Fahrenheit (F) or Celsius (C) time you want to exit a submenu. Temperatures The controller can display temperatures in F2 or F3 key: Press the F3 key to Fahrenheit or Celsius. With the unit On/Off enter the Main Menu.
Page 67: Setpoint Menu
MP-3000a Controller • Delay Defrost for 24 hours during unit 1. Press the SETPOINT key. The SETPOINT diagnosis or testing: Press “7” key and F1 key menu appears with the cursor in the “TEMP at the same time. Press F3 key to scroll cursor SETP”...
Page 68: Changing The Humidity Mode Setting
MP-3000a Controller Enter a Temperature or Humidity Setpoint Setpoint Menu • Press F4 key. OPTI -SET • Type the new setpoint. • Press and hold F4 key until cursor TEMP. SETP. stops flashing. BULB MODE EVAP FAN SPD. Activate Humidity DEFROST TRM.
Page 69: Alarms Menu
MP-3000a Controller 2. Press F3 to scroll the cursor down through the menu list. The Data menu displays the Note: All screens are not present on following functions: all units. The screens that display on the controller are determined by the Controller Software setting and •...
Page 70: Alarm Code States
MP-3000a Controller • Shutdown Alarm (Level 1): Alarm LED - If alarm condition currently exists in the unit flashes and unit stops. Shutdown alarms and the alarm code is acknowledged, the indicate the unit has been stopped to prevent Alarm LED will stop flashing but remain ON. damage to the unit or cargo.
Page 71: Alarm List
MP-3000a Controller Alarm List Check Ambient Air Sensor Short Circuit Check Probe Error Alarm Type Description Check High Pressure Cutout Switch Off Code Error Check Supply Air Sensor Open Circuit Check High Pressure Cutout Switch On Error Check Supply Air Sensor Short Circuit Shutdown Compressor Temperature Too Check Return Air Sensor Open Circuit...
Page 72: Figure 19: Commands Menu Screen Flow Diagram
MP-3000a Controller • Power Management: Sets the power limit and • Brief PTI (Brief Pretrip Test): Controller power limit activation (“On”) time. automatically completes a test of individual components, checks unit refrigeration • Manual Function Test: Controller tests capacity, heating capacity and temperature individual components selected by the control.
Page 73: Viewing The Commands Menu
MP-3000a Controller Viewing the Commands Menu • Power Management: LCD display shows current Power Limit setting and Power With the unit On/Off switch ON and the LCD Time setting. Turn Power Limit feature display showing the standard display (setpoint): ON and OFF, change power limit setting 1.
Page 74: Brief Pretrip (Pti) Test
MP-3000a Controller Brief Pretrip (PTI) Test With the unit On/Off switch ON and the LCD display showing the standard display (setpoint): CAUTION: The Brief PTI test should only 1. Press F3 key to enter the menu list. be performed on an empty container. Repeatedly press F2 key to scroll through Main Menu until “COMMANDS”...
Page 75: Crr Brief Pretrip (Pti Test Procedure)
MP-3000a Controller CRR Brief PreTrip (PTI Test Procedure) LCD Display Test Description Possible Duration Display (Shows Approx. Alarms (Time) (Test No.) Amps for 460V, 60 Hz Unit) Pb.00 Display Test Event Log for PTI begins. All alarms are turned OFF. None 10 Seconds Activated...
Page 76 MP-3000a Controller CRR Brief PreTrip (PTI Test Procedure) LCD Display Test Description Possible Duration Display (Shows Approx. Alarms (Time) (Test No.) Amps for 460V, 60 Hz Unit) Pb.07 Reverse Phase Condenser fan stops. Reverse phase selector relay is 30 Seconds Activated energized and condenser motor is started in reverse for 2 seconds.
Page 77 MP-3000a Controller CRR Brief PreTrip (PTI Test Procedure) LCD Display Test Description Possible Duration Display (Shows Approx. Alarms (Time) (Test No.) Amps for 460V, 60 Hz Unit) Pb.13 Capacity Test 3 KVQ valve is almost closed (set to -3 C). With 4 Minutes Activated condenser fan ON, compressor ON and evaporator...
Page 78: Full Pretrip (Pti) Test
MP-3000a Controller Full Pretrip (PTI) Test With the unit On/Off switch ON and the LCD display showing the standard display (setpoint): CAUTION: The Full PTI test should only 1. Press F3 key to enter the menu list. be performed on an empty container. Repeatedly press F2 key to scroll through Main Menu until “COMMANDS”...
Page 79: Crr Full Pretrip (Pti Test Procedure)
MP-3000a Controller CRR Full Pretrip (PTI Test Procedure) LCD Display Test Description Possible Duration Display (Shows Approx. Alarms (Time) (Test No.) Amps for 460V, 60 Hz Unit) P1.00 Display Test Event Log for PTI begins. All alarms are turned OFF. None 10 Seconds Activated...
Page 80 MP-3000a Controller CRR Full Pretrip (PTI Test Procedure) LCD Display Test Description Possible Duration Display (Shows Approx. Alarms (Time) (Test No.) Amps for 460V, 60 Hz Unit) P1.07 Reverse Phase Condenser fan stops. Reverse phase selector relay is 30 Seconds Activated energized and condenser motor is started in reverse for 2 seconds.
Page 81 MP-3000a Controller CRR Full Pretrip (PTI Test Procedure) P1.13 Capacity Test 3 KVQ valve is almost closed (set to -3 C). With 4 Minutes Activated 10.2A condenser fan ON, compressor ON and evaporator (5 Minutes 10.1A 10.2A fans on high speed; alarm is recorded if temperature on CRR20) difference exceeds: •...
Page 82: Function Test
MP-3000a Controller Function Test 1. Press F3 key to enter the menu list. Repeatedly press F2 key to scroll through The MP-3000a controller contains a special Main Menu until “COMMANDS” appears in function test that automatically tests individual LCD display. components including the controller display, sensors, condenser fan, evaporator fan, 2.
Page 83: Manual Function Test
MP-3000a Controller CRR Function Test F1.06 Compressor With condenser fan ON and compressor ON, Amp 06, 07 14 Seconds Test Activated draw is measured and compared to voltage. Evaporator temperature and condenser coil 9.2A 9.1A 9.2A temperature are measured and stored. If compressor has been OFF for last 18 hours (less than 30 seconds ON), a compressor sequence start occurs.
Page 84 MP-3000a Controller b. Press F4 key to start the component test. d. Repeat step 6c. until all required LCD display will change the component components are ON. For example, to state from OFF to ON. operate unit in Full Cool mode, start the following components: c.
Page 85: Power Management
MP-3000a Controller Power Management b. Press F2 or F3 key to scroll to the desired power limit setting: OFF, 13 amps, 15 Selecting a Power Limit from the Power Limit amps or 17 amps. screen turns ON the power reduction control algorithm that reduces total unit electric power c.
Page 86: Misc. Functions Menu
MP-3000a Controller Displays the current software Misc. Functions Menu Program Version: version loaded in the controller: Controller The Misc. Functions menu displays a list of (CTRL), EPROM and program serial numbers functions that identifies trips and determines how (SER NO). the controller records and displays operating NOTE: The Controller Label on the side of the information.
Page 87: Viewing The Misc. Functions Menu
MP-3000a Controller Viewing the Misc. Functions Menu 6. With the correct time entered in the menu line, press F4 key. Then press EXIT key to enter With the unit On/Off switch ON and the LCD time in controller memory. Cursor stops display showing the standard display (setpoint): blinking and new time appears in display.
Page 88: Setting Cargo Data
MP-3000a Controller 5. To reset an hourmeter or set hours on a 5. To enter text in a cargo data line, press F4 key replacement controller: with cursor in the desired menu line. An Enter Arrow appears and the cursor flashes in the a.
Page 89 MP-3000a Controller 5. Press F2 key to toggle temperature value in the menu line between C and F. 6. With the desired temperature value in the menu line, press and hold F4 key until cursor stops flashing. Cursor stops blinking and new temperature value appears in display.
Page 90: Configuration Menu
MP-3000a Controller Configuration Menu Press F2 key to scroll through Main Menu until appears in LCD display. “CONFIGURATIONS” The Configuration menu displays a list of functions that identifies unit operating features 3. Press F4 key to access the Configurations and current settings. The following functions are screen.
Page 91: Datalogger Menu
MP-3000a Controller • Economy Max: Sets the Economy mode • Unit #: Sets the unit serial number. Enter maximum temperature limit (factory up to 11 characters (number or letters). default = 0.2 C). Enter a value from 0 to Serial number must be manually set. Serial 5.0 C (0 to 8.9 F).
Page 92: Viewing The Datalogger Menu
MP-3000a Controller • Set Log Time: Sets the data log interval (1 4. Press F4 key to enter Temp Log. LCD display minute or 1/2, 1, 2 or 4 hours). shows the Log Time and the Setpoint, Supply and Return temperatures of the most recent •...
Page 93: Inspect Event Log
MP-3000a Controller Standard Display Note: All screens are not present on all units. The screens that display on the controller are determined by the Controller Software setting and the Datalogger Menu options installed on the unit. INSPECT TEMP PTI STATE CALIBRATE USDA PROBE ACTIVATE TRIP START...
Page 94 MP-3000a Controller 1. Press the F3 key to enter the Main Menu. 6. Press ESC key to exit the Event Log. 2. Press F2 key to scroll through Main Menu until “DATA-LOGGER” appears in LCD display. 3. Press F4 key to access the Datalogger menu. “Inspect Temp Log”...
Page 95: Set Log Time
MP-3000a Controller Set Log Time Set a Trip Start With the unit On/Off switch ON and the LCD display show- With the unit On/Off switch ON and the LCD display showing the standard display (setpoint): ing the standard display (setpoint): 1.
Page 96: Rmm State Menu
MP-3000a Controller Viewing the RMM State Screen PTI Examples • PTI stores volt and amps of all power With the unit On/Off switch ON and the LCD consuming components display showing the standard display (setpoint): • PTI stores temperatures logged at both the 1.
Page 97: Replacing The Controller
MP-3000a Controller • Position 3: Not Used (Moduload Units Only) 7. Check for correct rotation of condenser fan and evaporator fans. Condenser air should be • Position 4: Not Used (Moduload Units Only) blowing out from the center of the grille. •...
Page 98: Automatic Configuration Of Spare Parts Controller
MP-3000a Controller Controller Software Selection NOTE: Be certain that all connector plugs carefully seated. If a replacement controller was removed from another unit, check the small dial located on the CAUTION: Be sure to enter the container ID back of the controller for the correct software before releasing the unit for service.
Page 99: Temperature Sensors
MP-3000a Controller 6. Flash loading of new software is complete • All sensors should be properly installed: when “FLASH LOADING” clears from the • Supply air sensors must be inserted to the LCD display. bottom of the sensor tube and completely 7.
Page 100: Figure 25: Condenser Coil Sensor Location
MP-3000a Controller Resistance Values for Compressor Discharge Line Sensor Temp. Temp OHMS Temp. Temp. °F . °C °F °C 351017 15502 35.6 315288 161.6 14410 39.2 283558 165.2 13405 AJA1280 42.8 255337 168.8 12479 46.4 230210 172.4 11625 Insert Sensor into condenser coil 207807 10837 between tube rows 1 and 2...
Page 101: Diagnosis And Repair
MP-3000a Controller If you have viewed and corrected these problems and the unit still appears to be operating incorrectly, eliminate any possibility that the problem is caused by failure of components other than the controller. External Cause Checks AJA1282 • Poor contact between male and female connector plugs (loose connection).
Page 102: Status Messages And Controller Actions
MP-3000a Controller Status Messages and Controller Actions The Controller displays Status messages in the LCD display for several general faults, More than one Status message may appear at a time. Press F2 or F3 key to scroll through message displays. Message Status Message Controller Action...
Page 103 MP-3000a Controller Code Description Corrective Action High Pressure Cutout, Check Condenser • Controller clears message on compressor Probe start-up. Indicates: • No alarm is set until Controller determines that unit current draw is too low (alarm 37) or supply • Controller is set for Moduload and start-up is air temperature is too high (alarm 41).
Page 104 MP-3000a Controller Code Description Corrective Action Total Current Too Low (Alarm) • Check LCD display for High Pressure Cutout message. • Compressor Start-up: unit or component current draw is 50% below expected amps for • Enter Manual FUnction Test menu and test 4 minutes.
Page 105 MP-3000a Controller Code Description Corrective Action Evaporator Coil Temperature Too High • Check for sensor alarm codes. (Check Alarm) • Check discharge and suction pressure gauge • During Chill or Frozen Mode: Evaporator coil readings and check refrigerant charge. temperature is too high compared to return •...
Page 106 MP-3000a Controller Alarm Codes, Descriptions and Corrective Actions NOTE: Sensors used with the 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 107 MP-3000a Controller Code Description Corrective Action Return Air Sensor Short Circuit (Check Alarm) • Check sensor resistance between pins 3and 4 on plug J15. Resistance must be 2,000 ohms at • Sensor circuit resistance lower than 200 ohms. 25C (77F). •...
Page 108 MP-3000a Controller Code Description Corrective Action Compressor Current Too High (Check Alarm • Check evaporator, condenser and ambient sensor temperatures for correct value (+/-C • Occurs during Pretrip (PTI) or Function test only. [+/-9F] by viewing Data menu. • Compressor power consumption is 25% above •...
Page 109 MP-3000a Controller Code Description Corrective Action Heater Current Too Low (Check Alarm) • Enter Manual Function Test and turn heaters ON. Make sure the heat relay energizes. Check • Occurs during Pretrip (PTI) or Function test only. current draw on each phase. Current draw •...
Page 110 MP-3000a Controller Code Description Corrective Action 14** Evaporator Fan Low Speed Current Too High • Open evaporator door and make sure all fans (Check Alarm) rotate freely. • Occurs during Pretrip (PTI) or Function test only. • Enter Manual Function Test and start evaporator fans on LOW speed.
Page 111 MP-3000a Controller Code Description Corrective Action Condenser Fan Current Too Low (Check Alarm) • Enter Manual Function Test and start condenser fan. Make sure the fan starts. Check fan motor • Occurs during Pretrip (PTI) or Function test only. volts and amps. •...
Page 112 MP-3000a Controller Code Description Corrective Action Defrost Time Too Long (Check Alarm) • Initiate a manual defrost and check amperage draw and evaporator coil temperature. Evaluate • Heat signal has been ON for more than 90 defrost performance. minutes on 60 Hz power during Defrost (120 minutes on 50 Hz power).
Page 113 MP-3000a Controller Code Description Corrective Action Capacity Test 2 Error (Check Alarm) • Enter Manual Function Test and start evaporator fans on HIGH speed. Then select Sensor • Occurs during Pretrip (PTI) test only. Checks test and operate fans 2 to 5 minutes. •...
Page 114 MP-3000a Controller Code Description Corrective Action Evaporator Temperature Test Error (Check • Check evaporator coil sensor location. Alarm) • Check evaporator coil sensor and return air • Occurs during Pretrip (PTI) test only. sensor connections. • Evaporator coil temperature too high with no •...
Page 115 MP-3000a Controller Code Description Corrective Action Ambient Air Sensor Open Circuit (Check Alarm) • Check sensor resistance between pins 13 and 14 on plug J15. Resistance must be 2,000 ohms • Sensor circuit resistance higher than 100,000 at 25 C (77 F). ohms.
Page 116 MP-3000a Controller Code Description Corrective Action Probe Error (Check Alarm) • Check sensor connections. Check sensor resistance of each sensor. Resistance must be • Occurs during Pretrip (PTI) test or Probe Test 2,000 ohms at 25 C (77 F). failed in CHilled mode •...
Page 117 MP-3000a Controller Code Description Corrective Action Compressor Temperature Too High (Shutdown • Operate unit on Cool and check discharge and Alarm) suction pressure gauge readings. • Compressor dischage line temperature is above • Enter Manual Function Test menu and test 130 C (266 F).
Page 118 MP-3000a Controller Code Description Corrective Action KVQ Sensor Open Circuit (Alarm) • Check sensor resistance between pins 9 and 10 on plug J15. Resistance must be 100,000 ohms • Sensor circuit resistance higher than 10,000,000 at 25 C (77 F). ohms.
Page 119 MP-3000a Controller Code Description Corrective Action KVQ Heat Error (Check Alarm) • Carefully inspect actuator: • KVQ valve actuation temperature is not in range If actuator is hot, check that the actuator sensor within preset time. has been mounted correctly in p ins 11 and 12 on plug J15.
Page 120 MP-3000a Controller...
Page 121: Electrical Maintenance
Electrical Maintenance Unit Wiring • If the switch remains open for 5 minutes, the controller also turns ON the Alarm Inspect unit wiring, wire harnesses, and the LED and records Alarm 37, Total Power controller during pre-trip inspection and every Consumption Too Low.
Page 122: High Pressure Cutout Manifold
Electrical Maintenance High Pressure Cutout Manifold condenser fan contactor (disconnect power supply before reversing leads). DO NOT move the CH 1. Connect the manifold gauge to the compressor ground wire. discharge service valve with a heavy duty, black jacketed thick wall #HCA 144 hose with Evaporator Fans 6024 kPa, 60.24 bar, 900 psig working Visually inspect the evaporator fan blades for...
Page 123: Refrigeration Maintenance And Service Operations
Operations Service Tools NOTE: The following procedures involve servicing the refrigeration system. Some of these CAUTION: When servicing Thermo King service procedures are regulated by Federal, and R-134a refrigeration systems, use only in some cases, by State and Local laws.
Page 124: Compressor Discharge And Suction Service Valves
Refrigeration Maintenance and Service Operations Vacuum Pump • Front Seated: To check or remove compressor. A two-stage (P/N 204-725), three-stage or WARNING: Do not start unit with five-stage pump is recommended for evacuation. discharge valve in FRONT SEATED Purging the system with dry nitrogen is position.
Page 125: 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. AJA1306 Close Hand Valves Figure 35: Gauge manifold Closed to Center Port AJA1311 Quick Disconnect Access Valve Discharge Service Valve (DSV)
Page 126: Gauge Manifold Set (With Low Loss Fittings) Attachment And Purging
Refrigeration Maintenance and Service Operations 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 R-134a only.
Page 127: Checking Compressor Oil
Refrigeration Maintenance and Service Operations Gauge Manifold Set Removal To check compressor oil level with an ambient air temperature above 10 C (50 F) NOTE: To ensure minimum refrigerant release to the atmosphere, THE SYSTEM SHOULD BE Install gauge manifold on the compressor. Operate RUNNING.
Page 128: Refrigerant Leak Test Procedure
Refrigeration Maintenance and Service Operations 2. After stopping the compressor, adjust the low NOTE: Due to environmental concerns and side pressure to 21 kPa, 0.21 bar, 3 psig using personal safety, the use of a Halide torch is no the service gauge set. (Pressure measured at longer recommended.
Page 129: Low Side Pump Down
Refrigeration Maintenance and Service Operations Refrigerant Charge CAUTION: Nitrogen (N ) is under 15,170 The refrigerant charge should be checked during kPa, 151.70 bar, 2200 psig pressure in a pretrip and routine maintenance inspections. A full cylinder at 21 C (70 F). DO NOT use low charge of refrigerant will cause the container oxygen, acetylene or any other type of temperature to rise due to the lack of liquid...
Page 130: Figure 41: Standard Receiver Tank
Refrigeration Maintenance and Service Operations CAUTION: When adding R-134a to the unit, be careful not to OVERCHARGE the unit: Standard Receiver Tank: When the balls float in the middle of the sight glass, stop adding refrigerant. Water-cooled Condenser-receiver Tank: When the balls in the sight glass float, stop adding refrigerant.
Page 131: Evacuation And Cleanup Of The Refrigeration System
Refrigeration Maintenance and Service Operations • AIR — with oxygen as a contaminant. Oxygen in the air reacts with the oil. The oil begins to break down and can eventually lead to carbonization in the compressor and acid buildup. The longer this breakdown process goes on, the darker the compressor oil becomes until finally the color is BLACK indicating major system contamination.
Page 132: Figure 44: Evacuation Station And Unit Hook-Up
Refrigeration Maintenance and Service Operations AJA1450 Special, self-sealing quick disconnect couplers are To 220/190 VAC Power required for R-134a units. Gas Ballast Valve Calibration Standard Iso Valve Micron Meter Two-stage Vacuum Pump Sensor Figure 44: Evacuation Station and unit Hook-up...
Page 133 3. Confirm that the Evacuation Station functions The final equilibrium pressure is determined properly and determine “Blank Off” Pressure. with the Thermo King Evacuation Station The Blank Off Pressure of the Vacuum Pump using the following procedure (called a is the deepest vacuum that the vacuum pump...
Page 134: Figure 45: Constant Pressure Rise After Evacuation Indicates System Leak
Refrigeration Maintenance and Service Operations • A drop in pressure indicates that the time (see graph, “Pressure Rise Levels Off compressor oil is out-gassing and further After Evacuation Indicates Moisture in evacuation is necessary. System”, below). • An increase in pressure indicates that a Factors Affecting the Speed of System leak exists or there is moisture in the Evacuation...
Page 135: Figure 46: Pressure Rise Levels Off After Evacuation Indicates Moisture In System
Refrigeration Maintenance and Service Operations Unit Charging (from an Evacuated possible and as large in diameter as possible. For Condition) example, it takes eight times as long to pull a given vacuum through a 6 mm (1/4 inch) diameter 1. Close valve V4. hose as it does through a 12 mm (1/2 inch) diameter hose.
Page 136: Evaporator Pressure Regulator (Kvq) Valve
Refrigeration Maintenance and Service Operations 5. Front seat the suction service valve and pump CAUTION: If the controller temperature down the system to 21 to 35 kPa, 0.21 to 0.35 setpoint was lowered to force COOL bar, 3 to 5 psig. operation, be sure to return the controller 6.
Page 137 Refrigeration Maintenance and Service Operations 3. Check the heater circuit and thermistor circuit 3. Turn the unit On/Off switch to OFF. Then resistance. disconnect the main power cable from the main power source again. Close (front seat) • A good heater circuit has a resistance of 20 the discharge service valve.
Page 138 Refrigeration Maintenance and Service Operations KVQ Valve Replacement If the valve body is damaged, replace the entire valve. 1. Connect the unit’s main power cable to the main power source. Switch the refrigeration unit’s On/Off switch to ON. 2. Close the liquid line service valve and pump down the low side to 21 kPa, 0.21 bar, 3 psig.
Page 139: Refrigerant Recovery
Refrigeration Maintenance and Service Operations 12. Verify that all personnel are clear and connect receiver tank service port. Attach the service main power plug to power supply. Start the line to the recovery machine and purge the unit and check the refrigerant charge. Add lines.
Page 140: Compressor Replacement
Refrigeration Maintenance and Service Operations Procedure 7. The regulator should have two gauges; one to read tank pressure, the other to read line 1. Attach gauge manifold set (refer to “Gauge pressure. Properly maintained equipment will Manifold Set Attachment and Purging” for allow leak testing, purging, or dehydration to proper procedure for connecting to be done safely.
Page 141: Condenser Coil Replacement
Refrigeration Maintenance and Service Operations 5. Remove the three-phase electric power 9. Evacuate the low side and compressor (see connection. “Evacuation and Cleanup of the Refrigeration System” in this chapter). 6. Remove the compressor mounting tray bolts and nuts. 10. Back seat the discharge service valve and open the liquid line service valve fully.
Page 142: Expansion Valve Replacement
Refrigeration Maintenance and Service Operations 6. Then evacuate the system (see “Evacuation 6. Open the liquid line service valve on the inlet and Cleanup of the Refrigeration System” in side of the filter drier slowly to release a small this chapter). amount of refrigerant from the receiver tank to purge the air through the filter.
Page 143: Heat Exchanger Replacement
Refrigeration Maintenance and Service Operations 4. Solder equalizer line to expansion valve. 6. Lift the heat exchanger assembly from the unit. 5. Clean the suction line to a bright polished condition. Install the feeler bulb of new power Installation head in the feeler bulb clamp on the suction line.
Page 144: Receiver Tank Replacement
Refrigeration Maintenance and Service Operations Receiver Tank Replacement High Pressure Cutout Switch Replacement Removal Removal 1. Recover the refrigerant charge from the unit (see “Refrigerant Recovery” in this chapter). 1. Close the liquid line service valve and pump down the low side. Open the outlet valve 2.
Page 145: Liquid Line Solenoid Valve Replacement
Refrigeration Maintenance and Service Operations Liquid Line Solenoid Valve Liquid Injection Valve Replacement Replacement Removal Removal 1. Close the liquid line service valve and pump 1. Close the liquid line service valve and pump down the low side to -35 kPa, -0.35 bar, 10 in. down the low side to -35 kPa, -0.35 bar, 10 in.
Page 146: Dehumidify Valve Replacement
Refrigeration Maintenance and Service Operations Dehumidify Valve Replacement CAUTION: Use a heat sink or wrap the valve with wet rags to prevent damage to Removal the new valve. 1. Close the liquid line service valve and pump down the low side to -35 kPa, -0.35 bar, 10 in. 4.
Page 147: Structural/Accessory Maintenance
Structural/Accessory Maintenance Mounting Bolts Condenser Coil Check and tighten all unit, compressor, and fan Clean the condenser coil by blowing low pressure motor mounting bolts during pretrip inspections compressed air or a medium pressure warm water and every 1,000 operating hours. Unit mounting spray from the inside of the coil outward (opposite bolts should be tightened to a torque value of 204 direction of normal airflow).
Page 148: Defrost Drains
Structural/Accessory Maintenance Defrost Drains Clean the defrost drains every 1,000 operating hours to be sure the lines remain open. Fresh Air Exchange System The fresh air exchange system has an adjustable vent door for ventilation. The evaporator fans draw in outside air through an air intake and discharge an equal amount of container air through an air outlet.
Page 149: Handle Adjustment: High Ventilation Rates
Structural/Accessory Maintenance Handle Adjustment: High Ventilation Condenser Fan Location Rates Place fan blade on motor shaft with hub located 1. Loosen wing nut on handle assembly until on the outside of the blade for proper airflow handle bracket will rotate over handle. direction.
Page 150: Pretrip Inspection
Structural/Accessory Maintenance Pretrip Inspection The evaporator drain hoses are routed to the water tank to replenish the water level during unit The following items should be inspected before operation. However, water usage will vary loading the container: depending upon the load and ambient conditions. An overflow hose on the water tank removes •...
Page 151: Diagnosis
Diagnosis Mechanical Diagnosis Condition Possible Cause Remedy Compressor does not Controller ON; unit start sequence still Wait up to 3 minutes for compressor operate- no amperage draw timing start-up No Power to unit (condenser and Locate fault and repair: power source, evaporator fans do not operate) power plug, main circuit breaker, motor contactor, motor terminals, motor...
Page 152 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 Refrigerant overcharge causing Purge system...
Page 153 Diagnosis Condition Possible Cause Remedy Evaporator fan motor(s) Unit on defrost Check operating mode indicator LED’s does not operate Unit in Economy Mode (Frozen Load; Check setpoint, indicator lights and Null mode ONLY) Setpoint menu of the controller to verify that Economy Mode is set to ON Loose line connection Tighten connections...
Page 154 Diagnosis Condition Possible Cause Remedy Load temperature too high Compressor does not operate See “Mechanical Diagnosis” (unit not cooling) Shortage of refrigerant Repair leak and recharge Overcharge of refrigerant Purge system Air in refrigeration system Evacuate and recharge Defective controller or main relay Diagnose main relay board and board controller.
Page 155 Diagnosis Head pressure too low Shortage of refrigerant Repair leak and recharge Low ambient air temperature No remedy NOTE: This unit has a suction modulation Service gauge out of calibration Replace gauge capacity control system. Compressor suction or discharge Clean or replace leaking valve plates Suction and discharge valve inefficient pressures may drop below...
Page 156 Diagnosis Frosted or sweating suction Expansion valve admitting excess Check feeler bulb and adjust expansion line refrigerant valve Evaporator coil needs defrosting Check defrost circuit including controller and evaporator coil sensor Evaporator fan does not operate See “Evaporator fan motor does not operate”...
Page 157: Index
Index Displaying Alternate Fahrenheit (F) or Celsius (C) Temperatures 66 Alarm Code States 70 Dual Speed Evaporator Fans 33 Alarm List 71 Alarm Types 69 Alarms Menu 69 and Above) 55 Economy Mode Operation 57 and Below 56 Electrical Maintenance 121 Automatic Configuration of Spare Parts Controller 98 Electrical System, Specifications 28 Electrical, Safety 12...
Page 158 Index Liquid Injection Valve Replacement 145 Safety Precautions 11 Liquid Line Solenoid Valve Replacement 145 Semi-Hermetic Reciprocating Compressor with Liquid List of Figures 9 Injection Cooling System 33 Loading Procedure 50 Sequence Of Operation 58 Low Side Pump Down 129 Serial Number Locations 15 Low Voltage 13 Service Guide 17...
Page 159: Wiring And Schematic Diagrams Index
Wiring and Schematic Diagrams Index Dwg No. Drawing Title Page 5D51092 MPC2000 Wiring Schematic 5D51093 MPC2000 High Voltage Wiring Diagram 5D51094 MPC2000 Low Voltage Wiring Diagram 5D51661 MPC2000 WCC Wiring Schematic Refrigeration System Components Full Cool Flow and Pressure Diagram Cool with Modulation Flow and Pressure Diagram Dehumidification Flow and Pressure Diagram MPC2000ID Controller Menu Flow Diagram...
Page 160 Wiring and Schematic Diagrams Index...
Page 161: Mpc2000 Wiring Schematic
MPC2000 Wiring Schematic”...
Page 162: 5D51093 Mpc2000 High Voltage Wiring Diagram
MPC2000 High Voltage Wiring Diagram...
Page 163: 5D51094 Mpc2000 Low Voltage Wiring Diagram
MPC2000 Low Voltage Wiring Diagram...
Page 164: Mpc2000 Wcc Wiring Schematic
MPC2000 WCC Wiring Schematic...
Page 165: Refrigeration System Components
Refrigeration System Components CRR-40 Refrigeration System Components 3DS Compressor Oil Fill / Drain Fitting Discharge Service Valve High Pressure Cutout Switch Compressor Discharge Line Temperature Sensor Condenser Check Valve Condenser Coil (Circular) Receiver Tank High Pressure Relief (Fusible Plug) 10. Receiver Tank Service Fitting 11.
Page 166: Full Cool Flow And Pressure Diagram
Full Cool Flow and Pressure Diagram Flow and Pressure Diagram CRR-40 Full Cool D3DS Compressor Compressor operation has a variable delay on initial start-up. A sequence start of the compressor occurs when the compressor has been OFF for more than 18 hours. High Pressure Cutout Switch (HPCO) Is a normally CLOSED switch.
Page 167: Cool With Modulation Flow And Pressure Diagram
Cool with Modulation Flow and Pressure Diagram Flow and Pressure Diagram CRR-40 Cool with Modulation (or Power Limit) 29. Evaporator Pressure Regulator (KVQ Valve) Is a normally OPEN actuator valve. It CLOSES (or OPENS) accord- ing to the strength and frequency of a pulsing voltage signal from the controller.
Page 168: Dehumidification Flow And Pressure Diagram
Dehumidification Flow and Pressure Diagram Flow and Pressure Diagram CRR-40 Dehumidification 32. Dehumidify Solenoid Valve (DSV) Is a normally OPEN valve. If the container humidity is 2% or more above the humidity setpoint and the KVQ valve has reduced cooling capacity by about 25%, the controller will energize (CLOSE) the normally open solenoid.
Page 169: Mpc2000Id Controller Menu Flow Diagram
MPC2000ID Controller Menu Flow Diagram...
Page 170: Mp-3000A Controller Menu Flow Diagram
MP-3000a Controller Menu Flow Diagram...

Thermo King CRR-40 800E Manual

List of Figures

Safety Precautions

Service Guide

Model Features

Specifications

Unit Description

Operating Instructions

Table of Cont Ents

MP-3000A Controller

MP-3000A Controlle R (Continued)

Electrical Maintenance

Refrigeration Maintenance and Service Operations

Structural/Accessory Maintenance

List of Figures

Table of Cont Ents

Structural/Accessory Maintenance (Continued)

Diagnosis

Index

Wiring and Schematic Diagrams Index

Quick Links

Need help?

Questions and answers

Related Manuals for Thermo King CRR-40 800E

Summary of Contents for Thermo King CRR-40 800E

Table of Contents