51878-1-OP V-500 10-20, V-500 MAX 10-20 (Rev 0, 11-04)

V-500 10/20, V-500 MAX 10/20 TK 51878-1-OP (Rev. 0, 11/04)

Disclaimer This manual is published publ ished for informational purposes only. Thermo King Corporation makes no representations or warranties, express or implied, with respect to the information, recommendations and descriptions contained in this manual and such information, recommendations and descriptions should not be regarded as all-inclusive or covering all contingencies. If you have questions or require further information, please contact your local Thermo Ki ng dealer. The procedures described herein should be undertaken only by qualified personnel. Failure to implement these procedures correctly may cause damage to the Thermo King unit or other property or o r personal injury. Thermo King Corporation and its affiliates shall have no liability in contract or tort (including negligence and/or strict liability) or otherwise, to any person or entity for any personal injury, property damage or any other direct, indirect, special or consequential damage or liability whatsoever, arising out of or resulting from any actions by any person that are contrary to this manual or any of the information, recommendations or descriptions contained herein or the fail ure of any person to implement i mplement the procedures described herein correctly or to follow caution and safety decals located on the Thermo King unit.

Disclaimer This manual is published publ ished for informational purposes only. Thermo King Corporation makes no representations or warranties, express or implied, with respect to the information, recommendations and descriptions contained in this manual and such information, recommendations and descriptions should not be regarded as all-inclusive or covering all contingencies. If you have questions or require further information, please contact your local Thermo Ki ng dealer. The procedures described herein should be undertaken only by qualified personnel. Failure to implement these procedures correctly may cause damage to the Thermo King unit or other property or o r personal injury. Thermo King Corporation and its affiliates shall have no liability in contract or tort (including negligence and/or strict liability) or otherwise, to any person or entity for any personal injury, property damage or any other direct, indirect, special or consequential damage or liability whatsoever, arising out of or resulting from any actions by any person that are contrary to this manual or any of the information, recommendations or descriptions contained herein or the fail ure of any person to implement i mplement the procedures described herein correctly or to follow caution and safety decals located on the Thermo King unit.

Table of Contents Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical Hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Refrigerant Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 First Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 First Aid—Refrigerant . . . . . . . . . . . . . . . . . . . . . . 11 First Aid—Refrigerant Oil . . . . . . . . . . . . . . . . . . . 11 Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . 15 Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 The evaporator is mounted on the ceiling inside the truck box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Control Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

In-Cab Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Liquid Injection System . . . . . . . . . . . . . . . . . . . . . . . . 17 Evaporator Drain Tube Heaters . . . . . . . . . . . . . . . . . .17 Electric Standby Operation . . . . . . . . . . . . . . . . . . . . .17 Oil Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Protection Features . . . . . . . . . . . . . . . . . . . . . . . . . . .19 In-Cab Control Box Description Description . . . . . . . . . . . . . . . .25 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Display Descriptions . . . . . . . . . . . . . . . . . . . . . . .27 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . .31 Cab Control Box Operating Instructions . . . . . . . . . . .32 Displaying Return Air Temperature . . . . . . . . . . . . 32 Display Setpoint Temperature . . . . . . . . . . . . . . . .32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Enter Setpoint Temperature. . . . . . . . . . . . . . . . . .33 Defrost Mode Operation . . . . . . . . . . . . . . . . . . . .33 Weekly Pretrip Inspection . . . . . . . . . . . . . . . . . . . 34 Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Thermostat Operation . .37

Table of Contents

Loading and Enroute Inspections . . . . . . . . . . . . . . 39 Pre-Loading Inspection . . . . . . . . . . . . . . . . . . . . . . . . 39 Inspecting the Load . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Enroute Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Emergency Cold Line . . . . . . . . . . . . . . . . . . . . . . . . 65

Maintenance Inspection Schedule . . . . . . . . . . . . . . 49 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Serial Number Locations . . . . . . . . . . . . . . . . . . . . . 63

Recover Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . 66

List of Figures Figure 1:Fan Warning . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 2:Caution: High Voltage . . . . . . . . . . . . . . . . . . 12 Figure 3:Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 4:V-500 Condenser Unit . . . . . . . . . . . . . . . . . 14 Figure 5:Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 6:In-Cab Control Box . . . . . . . . . . . . . . . . . . . . 16 Figure 7:Unit Components (Model 20) . . . . . . . . . . . . 21 Figure 8:Condenser Electric and Capacitor Boxes (Model 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 9:Standard Evaporator . . . . . . . . . . . . . . . . . . . 23 Figure 10:Evaporator with Hot Water and Electric Heat Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 11:M-13 In-Cab Control Box . . . . . . . . . . . . . . 25 Figure 12:Display Screen . . . . . . . . . . . . . . . . . . . . . . 26

Figure 13:On/Off Key & LED . . . . . . . . . . . . . . . . . . . .27 Figure 14:Celsius/Fahrenheit LED . . . . . . . . . . . . . . . . 28 Figure 15:Setpoint Key & Dial . . . . . . . . . . . . . . . . . . .28 Figure 16:Misc. LED’s . . . . . . . . . . . . . . . . . . . . . . . . .29 Figure 17:Defrost Key & LED . . . . . . . . . . . . . . . . . . . .29 Figure 18:M-13 In-Cab Control Box . . . . . . . . . . . . . . .31 Figure 19:Setpoint Key . . . . . . . . . . . . . . . . . . . . . . . .32 Figure 20:Entering Setpoint . . . . . . . . . . . . . . . . . . . . .33 Figure 21:On/Off Key and Defrost Key . . . . . . . . . . . .34 Figure 22:Electric Power Receptacle . . . . . . . . . . . . . . 36 Figure 23:Thermostat Algorithm . . . . . . . . . . . . . . . . .38 Figure 24:Loading Considerations . . . . . . . . . . . . . . . .40 Figure 25:Condenser and Standby Compressor Serial Number Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

List of Figures

Introduction There is nothing complicated about operating and maintaining your Thermo King unit, but a few minutes studying this manual will be time well spent. Performing pre-trip checks and enroute inspections on a regular basis will minimize on-the-road operating problems. A regular maintenance program will also help to keep your unit in top operating condition. If factory recommended procedures are followed, you will find that you have purchased the most efficient and dependable temperature control system available. All service requirements, major and minor, should be handled by a Thermo King dealer for four very important reasons: 

They are equipped with the factory recommended tools to perform all service functions

•

They have factory trained and certified technicians

•

They have genuine Thermo King replacement parts

•

The warranty on your new unit is valid only when the repair and replacement of component parts is performed by an authorized Thermo King dealer.

IMPORTANT: This manual is published for informational purposes only and the information furnished herein should not be considered as all-inclusive or meant to cover all contingencies. If more information is required, consult your Thermo King Service Directory for the location and telephone number of the local dealer.

Introduction

Safety Precautions Thermo King recommends all services be performed by a Thermo King dealer. However, there are several general safety practices you should be aware of: DANGER: Never operate the unit with the discharge valve closed because it could cause the compressor to explode, causing death or serious injury. WARNING: Always wear goggles or safety glasses when working with or around the refrigeration system or battery. Refrigerant or battery acid can cause permanent damage if it comes in contact with your eyes. WARNING: Keep hands and loose clothing clear of fans and belts at all times when the unit is operating or when opening or closing compressor service valves.

WARNING: Exposed coil fins can cause painful lacerations. Service work on the evaporator or condenser coils is best left to a certified Thermo King technician. CAUTION: Use extreme caution when drilling holes in the unit. Drilling into electrical wiring or refrigerant lines could cause a fire. Never drill into structural components. WARNING: Turn all unit On/Off switches to the Off position before opening doors or inspecting any part of the unit.

Safety Precautions

Electrical Hazard WARNING: Disconnect the high voltage power cable before working on the unit. Units with electric standby present a potential electrical hazard.

Refrigerant Oil Observe the following precautions when working with or around refrigerant oil: WARNING: Always wear goggles or safety glasses to protect eyes from refrigerant oil contact.

WARNING: Protect skin and clothing from prolonged or repeated contact with refrigerant oil. Rubber gloves are recommended. WARNING: Wash thoroughly immediately after handling refrigerant oil to prevent irritation.

Refrigerant Although fluorocarbon refrigerants are classified as safe, observe caution when working with refrigerants or around areas where they are being used in the servicing of your unit. DANGER: Fluorocarbon refrigerants may produce toxic gases. In the presence of an open flame or electrical short, these gases are severe respiratory irritants CAPABLE OF CAUSING DEATH. DANGER: Fluorocarbon refrigerants tend to displace air and can cause oxygen depletion which could result in DEATH BY SUFFOCATION. Provide adequate ventilation in enclosed or confined areas. WARNING: Fluorocarbon refrigerants evaporate rapidly, freezing anything they contact if accidentally released into the atmosphere from the liquid state.

Safety Precautions

First Aid First Aid—Refrigerant Eyes: For contact with liquid, immediately flush eyes with large amounts of water. Seek prompt medical attention.

Skin: Flush areas with large amounts of warm water. Do not

First Aid—Refrigerant Oil Eyes: Immediately flush eyes with large amounts of water for at least 15 minutes while holding the eyelids open. Get prompt medical attention.

Skin: Remove contaminated clothing. Wash thoroughly with soap and water. Get medical attention if irritation persists.

apply heat. Wrap burns with dry, sterile, bulky dressing to protect from infection or injury. Seek prompt medical attention.

Inhalation: Move victim to fresh air and restore breathing if

Inhalation: Move victim to fresh air and restore breathing if

local poison control center or physician.

necessary. Stay with victim until emergency personnel arrive.

necessary. Stay with victim until emergency personnel arrive.

Ingestion: Do not induce vomiting. Immediately contact

Safety Precautions

Safety Decals

AMA146

AMA145

Figure 1: Fan Warning

Figure 3: Belt Warning

AMA147

Figure 2: Caution: High Voltage

Unit Description Introduction The Thermo King V-500 10/20 and V-500 MAX truck refrigeration systems are two piece units. The unit is designed for medium-sized trucks and vans carrying fresh produce and frozen and deep frozen goods. The condenser is mounted on the front of the truck box or container. The evaporator is mounted on the cargo compartment ceiling. The main compressor is powered by the vehicle engine via a belt. The unit is connected to the compressor by refrigeration hoses. In electric standby operation models, the second compressor is driven by an electric motor. Control circuits operate on 12 VDC supplied by the truck batteries for over-the-road operation. The refrigeration system is protected by a high pressure cutout and a low pressure cutout.

The in-cab control includes an on/off switch, manual defrost switch, thermometer, thermostat, thermostat adjustments and indicator lights. The operating mode is selected automatically: When the unit is connected to an electric power source, engine-driven operation is automatically blocked. If the vehicle engine is started up while the power cable is still connected to the electric power source, the unit will continue to operate in electric standby mode. It is not possible to start the engine-driven compressor until the power cable is disconnected from the unit. There are two basic models: •

Model 10: Cool and defrost on truck engine driven compressor operation.

•

Model 20: Cool and defrost on both truck engine driven compressor operation and electric standby compressor operation.

Unit Description

Unit Features

AMA508

Figure 4: V-500 Condenser Unit

•

M-13 In-Cab Control Box with Digital LED Thermometer (Standard)

•

Digital Thermometer

•

Electronic Thermostat (Standard)

•

Defrost Timer (Standard)

•

Defrost Thermostat

•

Hot Gas Defrost (Standard)

•

Manual Defrost Switch (Standard)

•

Oil Separator (Standard)

•

Liquid Injection

•

Main Compressor TM 16 XD

•

Electric Compressor, Model 20

•

Evaporator Drain Heaters, Max Units

•

Electric/00Water Heat, Model 20

•

Water Heat, Model 10

Unit Description

Refrigeration System Refrigeration hoses or lines are used to connect the condenser, the evaporator, the compressor and any other components. Model 20 units have another compressor and an electric motor mounted in the condenser section for electric standby operation. The engine compressor is driven by a belt from the engine. The electric standby compressor is connected in parallel with the engine-driven compressor. The standby compressor is hermetically sealed with its electric motor. Both compressors use the same refrigeration system circuit. Check valves isolate one compressor from the other during operation. Compressor operation is controlled by the thermostat, which energizes the compressor clutch during engine operation or starts the electric motor and energizes the compressor clutch on electric standby operation. The refrigeration system is protected by a high pressure cutout switch and a low pressure cutout switch.

When plugged into standby power, engine operation is automatically locked out. If the truck engine is turned on while the power cord is still plugged into a power receptacle, the unit will remain working in electric mode; the engine d riven compressor cannot be started until the power cord is unplugged from the unit as the selection of engine operation or standby operation is automatic.

Unit Description

AMA510

AJA1772

Figure 5: Evaporator

Evaporator The evaporator is mounted on the ceiling inside the truck box.

Control Circuits The control circuits operate on 12 VDC supplied by the truck batteries for engine operation. On standby operation, the power is rectified from an AC transformer.

Figure 6: In-Cab Control Box

In-Cab Control Box Unit operation is controlled with an in-cab control box, which is mounted in the truck cab. It includes an On-Off switch, manual defrost switch, thermometer, thermostat, thermostat adjustment, and indicator lights. The TC unit has an additional cab control box to operate the second compartment. It is switched on and off from the main cab control box and includes a thermometer, thermostat, thermostat adjustment and indicator lights.

Unit Description

Refrigerant

Evaporator Drain Tube Heaters

The V-500-10 and V-500-20 units use R-134a refrigerant. The V-500 MAX-10 and V-500 MAX-20 units use R-404A refrigerant.

Evaporator heaters are used in MAX units to avoid drain tube blockage because of ice accumulation inside the evaporator. One heater is located inside each drain tube. These resistive wire heaters melt the ice while the unit is in DEFROST mode.

Liquid Injection System All V-500 models have a liquid injection system to limit discharge temperature of the engine driven compressor. If the discharge gas leaving the compressor reaches a temperature of 230 ± 5 F (110 ± 3 C) the liquid injection switch closes, providing voltage to the liquid injection solenoid. The solenoid opens a valve, allowing liquid refrigerant to flow from the liquid line near the drier inlet to the metering orifice attached to the suction line fitting on the engine driven compressor. As the refrigerant passes through the metering orifice it expands and evaporates, cooling the suction gas entering the compressor. This cooling effect is transferred to the discharge gas leaving the compressor from the adjacent cavity in the compressor head. When the discharge gas is cooled to 200 ± 5 F (93 ± 3 C), the liquid injection switch opens, the liquid injection solenoid closes and refrigerant no longer flows through the liquid injection system.

Electric Standby Operation During electric standby operation, the thermostat controls the operation of the unit by energizing and de-energizing the power relay, the electric relays, and the heat contactor. The thermostat places the unit in cool by energizing the motor contactor and the electric relays. The thermostat places the unit in null by de-energizing all the relays and contactors. The thermostat places the unit in heat by energizing the heat contactor.

Unit Description

When the power relay and the electric relays are energized, they close contacts that energize the fan relay, the motor contactor, and the electric standby compressor clutch. When the heat contactor is energized, it energizes the electric evaporator heaters and the fan relay.

Oil Separator An oil separator is a standard feature. The oil separator separates compressor oil from the refrigerant and returns the oil to the compressor through the suction line. The oil separator helps provide positive oil return at high compressor speeds and low operating temperatures. This feature enhances compressor lubrication and extends compressor life.

Unit Description

Protection Features High Pressure Cutout Switch: The High Pressure Cutout Switch is a pressure sensitive switch. If the discharge pressure rises above the switch’s opening pressure, the switch stops the unit. When the discharge pressure falls below the switch’s closing pressure, the switch closes to restart the unit.

Condenser Fan Pressure Switch: This switch helps the unit to keep the condenser head pressure higher in cool ambients and on-road. This feature allows better control of the head pressure and the thermostatic expansion valve, and at the same time increases the evaporator pressure. Defrost is carried out quicker in cool ambients and on-road.

Low Pressure Cutout Switch: This switch is a pressure sensitive switch located in the suction line. If the pressure falls below acceptable limits, the switch stops unit operation.

Unit Description

Fuses

(Fuses 1, 2, 3 5, 6 and 7 are located on the printed circuit board.)

Fuse 1: Protects the evaporator fan motor (EFM1) from possible overload.

Electric Standby Operation Fuses:

Fuse 2: Protects the evaporator fan motor (EFM2) from possible overload.

Fuse 4 protects the in-cab control box when the unit is in electric standby mode. Fuse 4 is located on the printed circuit board (inside the cab control).

Fuse 3: Protects: •

The engine-driven compressor clutch coil.

•

Condenser solenoid valve coil (heating option).

•

Hot gas solenoid valve coil.

Fuse 5: Protects the condenser fan motor (CFM1) from possible overload. Fuse 6: Protects the condenser fan motor (CFM2) from possible overload. Fuse 7: Protects the evaporator fan motor (EFM3) from possible overload. Fuse 4/1: Protects the in-cab control box from possible overload. It is located inside the in-cab control box.

Fuse 8 is located in the electric box and protects the transformer from possible overload.

Unit Description

10

11

12

9

1 2

8 3

4 7

6

5

AMA511

1.

Filter-Drier

5.

Oil Separator

9.

Transformer Cover

2.

Liquid Sight Glass

6.

Electric Standby Compressor

10.

Condenser Fans

3.

Liquid Injection Valve

7.

Condenser Coil

11.

AC Compressor Electric Box

4.

Liquid Tank

8. Rectifier Heat Sink 12. Figure 7: Unit Components (Model 20)

Defrost Valve

Unit Description

1 2 3 4

AMA519

AMA512

1. 2.

PC Board 3. Heat Option Contactor Motor Contactor 4. Capacitor Box, single phase only Figure 8: Condenser Electric and Capacitor Boxes (Model 20)

Unit Description

4 1

2 AMA513

3

1. 2.

Evaporator Fans Expansion Valve

3. Air Temperature Sensor 4. Defrost Switch Figure 9: Standard Evaporator

AMA514

Unit Description

3

2

AMA525

4

1.

Hott Wat Ho Wate er Hea Heatt Def Defrrost ost Coi Coill

2.

Electric He Heat El Elem eme ent

3.

1

High High Tem empe pera ratu ture re Limi Limitt Swi Switc tch h

4. Air Air Te Temp mpe erat rature ure Sen Senso sorr Figure 10: Evaporator with Hot Water and Electric Heat Options

In-Cab Control Box Description Unit operation is controlled with an in-cab control b ox, which is mounted in the truck cab. It includes an on-off key, key, manual defrost key, setpoint key, thermometer, thermostat, thermostat adjustment, and indicator lights.

AJA1772

Figure 11: 11: M-13 In-Cab In-Cab Control Box

In-Cab Control Box Description

Display The display consists of a display screen, keys and indicator LED’s. The display screen shows the return (box) air temperature. The screen will display the setpoint temperature if the setpoint key is pressed.

1

1 1. 2.

2

1

AJA1772

Keys Display Screen

Figure 12: 12: Display Screen Screen


Display Descriptions This section describes the display screen, keys and LED indicators. 1.

ON-OFF KEY It is used to Start/Stop the unit. The internal return air temperature will be automatically displayed.

2.

ON LED Indicator When on, it indicates that the unit has been started by pressing the on-off key.

1

2

AJA1802

Figure 13: On/Off Key & LED


4

5.

Fahrenheit LED Indicator. When on, it indicates the temperature being displayed is in Degrees Fahrenheit.

6.

Setpoint Adjust Dial It is used to adjust the setpoint temperature.

7.

Setpoint Key It is used to display the setpoint temperature.

3

5

AJA1803

6

Figure 14: Celsius/Fahrenheit LED 3.

4.

Celsius LED Indicator When on, it indicates the temperature being displayed is in Degrees Celsius. Minus Sign Indicates the temperature being displayed is below zero.

AJA1804

7 Figure 15: Setpoint Key & Dial

7


8 11 9

12 AJA1805

AJA1806

10 Figure 16: Misc. LED’s 8.

Power Cord LED When on, it indicates the unit is plugged to the A.C. voltage power supply.

9.

AC Overload LED When on, it indicates the unit has been stopped by the AC Overload Relay.

Figure 17: Defrost Key & LED 10. Unit Operation LED When on, it indicates the unit is cooling. When the unit is Stopped by the Thermostat, HPCO or LPCO, the Unit Operation LED must be “OFF” and the ON LED Indicator must remain “ON”. 11. Defrost LED Indicator When on, it indicates the unit is working on Defrost Mode. 12. Manual Defrost Key It is used to initiate the Defrost Cycle manually


Operating Instructions Thermo King has applied the newest technological advances to develop compact devices that controls unit functioning and displays operating information quickly and accurately. This new Cab Control Box is designed to be used in both new and existing Thermo King units. There is nothing complicated about learning to operate the Cab Control Boxes manufactured by Thermo King, but you will find that a few minutes studying the contents of this manual will be time well spent. This manual is published for informational purposes only and the information furnished herein should not be considered as all-inclusive or meant to cover all contingencies. In-Cab Control Boxes manufactured by Thermo King can work with 12 VDC units. You can also display at your convenience the thermometer & the set point temperature in both Celsius or Fahrenheit degrees. To set the voltage & the Celsius/Fahrenheit selectors, contact your nearest Thermo King dealer.

AJA1772

Figure 18: M-13 In-Cab Control Box

Operating Instructions

Cab Control Box Operating Instructions Displaying Return Air Temperature During normal operation (unit is ON and cooling), the ON LED Indicator, the Unit Operation LED and Celsius/Fahrenheit LED Indicator should be ON; the return air temperature should be displayed on the screen. (See Figure 21.)

AJA1809

1 1.

Display Setpoint Temperature 1.

During normal operation, press the Setpoint Key to display the Setpoint Temperature. (See Figure 19.)

Setpoint Key Figure 19: Setpoint Key


Enter Setpoint Temperature. 1.

Press the Setpoint Key. The Setpoint Temperature will be displayed on the screen. (See Figure 20.)

2.

At the same time, turn the Setpoint Adjust Dial until the display shows desired temperature.(See Figure 19.)

3.

Release the Setpoint Key. The box temperature will be displayed on the screen. (See Figure 19.)

1

2 AJA1807

1.

Setpoint Adjustable Dial

2.

Setpoint Key Figure 20: Entering Setpoint

CAUTION: The Setpoint Temperature can be changed by turning Setpoint Adjust Dial when Setpoint Key is not pressed.

Defrost Mode Operation Initiate a Manual Defrost: Pressing the Manual Defrost Key will start the defrost cycle i f the evaporator coil temperature is below 2.2 C (36 F). The defrost LED will go ON. The unit will return to the cool mode automatically when the defrost cycle is finished. (See Figure 21.)


Initiate a Automatic Defrost: The defrost timer will initiate a defrost cycle if the evaporator coil temperature is below 2.2 C (36 F). The defrost LED will go ON. The unit will return to the cool mode automatically when the defrost is finished.(See Figure 21.)

1.

On/Off Key

2.

Manual Defrost Key

Figure 21: On/Off Key and Defrost Key

Stop the Defrost Cycle: Press and release the On-Off Key twice to stop the defrost cycle.

Weekly Pretrip Inspection

2

AJA1808

1

The following Weekly Pretrip Inspection should be completed before loading the truck. While the w eekly inspection in not a substitute for regularly scheduled maintenance inspections, it is important part of the preventive maintenance program designed to head off operating problems before they happen. 1.

LEAKS. Inspect for refrigerant leaks and worn refrigerant lines. Check for proper refrigerant charge level.

2.

BELTS. Inspect for cracks, wear and proper belt tension.

3.

MOUNTING BOLTS. Inspect bolts for proper tightening.

4.

ELECTRICAL. Electrical connections should be securely fastened. Wires and terminals should be free of corrosion, cracks or moisture.


5.

DEFROST DRAINS. Check the defrost drain hose and fittings to be sure that they are open so condensate can run out during defrosting. Check the bottom end of drain hose to be sure that is not plugged or crushed.

6.

STRUCTURAL. Visually check for physical damage.

7.

REFRIGERANT CHARGE. Start the unit. Check the sight glass level with the compressor running.

Engine Operation 1.

Start the truck engine.

2.

Press the on-off switch on the cab control box, the ON/OFF LED must go ON.

3.

Dial the thermostat setting above and below the box temperature to check thermostat operation on the cab control box.

4.

Set the thermostat at the desired temperature, allow the unit to run for one-half to one hour (longer if possible) before loading the truck. Pre-cooling will remove residual body heat and moisture from the box interior and provide a good test of the refrigeration system

5.

When the unit has finished pre-cooling the truck interior (evaporator temperature dropped below 36 F (2.2 C), initiate a defrost cycle with the manual defrost switch. The defrost cycle should end automatically.


Electric Standby Operation 1.

Connect the external power supply to the power receptacle. Make sure that the power supply voltage is correct for the unit. The power cord led should go ON.

2.

Press the on-off switch in the cab control box, the ON LED should go ON.

3.

Dial the thermostat setting above and below the box temperature to check thermostat operation on the cab control box.

Figure 22: Electric Power Receptacle

4.

Set the thermostat at the desired temperature, allow the unit to run for one-half to one hour (longer if possible) before loading the truck. Pre-cooling will remove residual body heat and moisture from the box interior and provide a good test of the refrigeration system

5.

When the unit has finished pre-cooling the truck interior (evaporator temperature dropped below 36 F (2.2 C), initiate a defrost cycle with the manual defrost switch. The defrost cycle should end automatically.

NOTE: Even though the truck engine is started the unit will work on Electric Standby if the power cord is plugged in.


Unit Operation

Thermostat Operation

Units cycle between Cool and Null to maintain the box temperature at the thermostat setpoint. The operating modes are: Cool, Null, and Defrost.

Cool

The thermostat controls the operation of the unit by energizing and de-energizing the Power Relay (PR). When PR is energized it energizes the evaporator fans, the condenser fans, and the compressor clutch (or the compressor motor contactor during electric stand-by operation). The condenser fan is also controlled by the condenser fan pressure switch (CFPS) on R-134a units. This normally open switch monitors the compressor discharge pressure. When the discharge pressure rises to 180 psi (1241 kPa) the switch closes and energizes the condenser fan. When the discharge pressure drops below 130 psi (896 kpa) the switch opens and de-energizes the condenser fan.

The thermostat energizes the (PR) at box temperatures higher than 5.4 F (3.0 C) above setpoint. The thermostat keeps PR energized while the box temperature is higher than setpoint. The fans and the compressor run and the unit cools.

Null The thermostat de-energizes PR at box temperatures lower than setpoint. The thermostat keeps PR de-energized while the box temperature is lower than 5.4 F (3.0 C) above the setpoint temperature. When PR is de-energized and the unit does not operate. On TC units PR is de-energized only when the condition is required from both thermostats.


Temperature Drop

COOL

Temperature Rise

3.0 C (5.4 F) Above Setpoint Setpoint

NULL

Figure 23: Thermostat Algorithm

Defrost The defrost cycle can be initiated any time the evaporator coil temperature is below 36 F (2.2 C). Defrost is initiated automatically by the defrost timer, or manually by pressing the manual defrost switch. The defrost relay energizes the defrost solenoid valve (and the condenser solenoid valve on units equipped with the heat option) to route hot refrigerant gas to the evaporator when PR is energized. The defrost relay also interrupts power to the evaporator and condenser fans during defrost. The defrost cycle will continue until the evaporator coil temperature rises 8.9 C (48 F), causing the defrost termination switch to open ending the defrost cycle. Defrost cycle can be also terminated stopping the unit pressing the ON/OFF Switch twice.

Loading and Enroute Inspections Thermo King refrigeration units are designed to maintain the required temperature for the product being carried during its time in transit. Because of the unit’s unique design, special care is required during loading to prevent cargo spoilage.

4.

Pre-Loading Inspection 1.

Inspect all door seals, including vent doors, for condition and a tight seal with no air leakage.

2.

Inspect the cargo compartment inside and out for damaged or loose skin and insulation.

3.

Inspect the inside of the cargo compartment for damaged walls, air ducts, floor channels or “T” flooring, clogged defrost drain tubes, and clogged or damaged floor channels which could block the air return, creating isolated areas in the load that are warmer than the desired temperature.

Pre-cool the cargo compartment. Adjust the setpoint to the desired cargo temperature and allow the unit to run a minimum of 30 to 60 minutes (longer if possible) before loading. Check to be certain the setpoint temperature is correct for the cargo. Pre-cooling before loading will remove residual heat and moisture from the cargo compartment and prepare it to receive the refrigerated load. Pre-cooling also provides a good test of the refrigeration system.

5.

Make sure products are pre-cooled to the proper temperature before loading. Any variance should be noted on the manifest.

6.

Supervise product loading to make sure that there is sufficient air space around and through the load so air flow is not restricted.

Loading and Enroute Inspections

1

2

3

4 5

6

7 8

7

AMA526

Figure 24: Loading Considerations

1.

Unit Inspection

2.

Good Outside Air Circulation

3.

Gaskets Equally Compressed

4.

Clear Defrost Drains

5.

Tight Doors

6.

Good Air Circulation Around Load

7.

Interior and Exterior Walls and Insulation in Good Condition

8.

Cargo at Proper Temperature Prior to Loading


Inspecting the Load

3.

Never assume that the product has been loaded properly. Watch for and perform the following tasks. It takes only a few minutes and could save you or your employer considerable time and money later on.

While inspecting to see that the cargo is loaded properly, make sure the evaporator inlets and outlets are not blocked.

4.

Close or supervise the closing of the cargo compartment doors. Make sure they are securely locked.

1.

5.

Check to make sure the unit setpoint is set at the desired temperature as listed on the manifest.

6.

If the unit was stopped, restart using the appropriate starting procedure outlined in this manual.

7.

Repeat the after-start inspection.

8.

Defrost the unit 30 minutes after loading by starting a manual defrost cycle.

Make sure the unit is off before opening the cargo compartment doors. During operation, the unit blows out refrigerated air, and draws in outside air. NOTE: The unit can be run with the doors open if the truck is backed into a refrigerated warehouse with tight door seals.

2.

Perform a final check of the load temperature. If the load is too hot or too cold, make a final notation on the manifest. CAUTION: Make sure cargo is pre-cooled to the proper temperature before loading. The unit is designed to maintain temperature, not cool an above-temperature load.


Enroute Inspections NOTE: Enroute inspections are recommended every four hours for the prevention of damage to the cargo. 1.

Note the setpoint to make certain no one has altered the setting since picking up the load.

2.

Note the return air temperature reading. It should be within the desired temperature range. If the return air temperature reading is not within the desired temperature range, it indicates one of the following: a.

The unit has not had sufficient time to pull down the temperature. Refer to log, if possible, for history of load (for example, above temperature load, properly pre-cooled cargo compartment, length of time on road).

b.

The unit is in defrost or has just completed defrost.

NOTE: You can cancel defrost by turning the unit off, then restarting the unit.

c.

The evaporator is plugged with frost. Initiate a manual defrost cycle. The defrost cycle will be automatically terminated.

d.

Improper air circulation within the cargo compartment. Inspect the cargo compartment (if possible) to determine if the evaporator fans are working and properly circulating the air. Poor air circulation can be due to improper loading of the cargo or shifting of the load. WARNING: The unit may START automatically AT ANY TIME while it is turned ON. Make sure to turn the unit OFF before opening unit doors or inspecting any part of the unit.


e.

The unit may have a low refrigerant charge. If liquid is not showing in the unit receiver tank sight glass, the refrigerant charge may be low. Adding refrigerant or repairing the refrigeration system requires a competent mechanic. Refer such problems to the nearest Thermo King dealer or authorized Service Center, or call the Thermo King Cold Line telephone number shown on the inside back cover of this manual for referral.

NOTE: If the temperature in the compartment is not within the desired temperature range, repeat the Enroute Inspection every 30 minutes until the compartment temperature comes within the desired temperature range.

CAUTION: Stop the unit if the compartment temperature remains outside the desired temperature range from the setpoint on two consecutive 30 minute inspections. Contact the nearest Thermo King Service Center or your company office immediately. Take all necessary steps to protect and maintain proper load temperature. 3.

Initiate a Manual Defrost cycle after each Enroute Inspection.


Specifications GENERAL Main Compressor

SELTEC TM-16XD

Electrical Compressor

FRASCOLD D211Y

System Oil Capacity

Main:

5.1 oz (150 cc)

Standby Operation:

40.1 oz (1200 cc)

Compressor Oil Type

Polyol Ester P/N 203-515

Refrigerant

8.1 lbs (3.7 kg) R-404A 8.0 lbs (3.6 kg) R-134a

Defrost Method:

Hot gas

Defrost Timer:

Initiation Interval

Adjustable, 1 hour to 10 hours

Termination Interval

Termination is not timed. Defrost is terminated by Klixon switch.

Specifications

ELECTRICAL SYSTEM Fuses Fuse 1: Evaporator Fan Motor (EF1)

15 amps

Fuse 2: Evaporator Fan Motor (EF2)

15 amps

Fuse 3: Engine-driven Compressor Clutch Coil, Condenser Solenoid 15 amps Valve Coil (heating option), Hot Gas Solenoid Valve Coil Fuse 5: Condenser Fan Motor (CFM1)

15 amps

Fuse 6: Condenser Fan Motor (CFM2)

15 amps

Fuse 7: Evaporator Fan Motor (EF3)

15 amps

Fuse 4: Electric Standby

3 amps

Fuse 4/1: Cab Control Box

3 amps

Condenser Fan Motors (2) Voltage

Full Load rpm

Full Load Current

13 Vdc

3000

9.2 Amps

Specifications

Evaporator Fan Motors (3) Voltage

Full Load rpm

Full Load Current

13 Vdc

2700

6.2 Amps

Coils for Hot Gas Solenoids Voltage

Current

Resistance

12 Vdc

2.3 Amps

5.2 Ohms

Voltage

Phase

Frequency

Full Load Current

208/230

3

60 Hz

14.1 Amps

208/230

1

60 Hz

16.0 Amps

AC Electric Motor

BELT TENSION

Check vehicle manufacturer specifications

Specifications

Electric Standby Power Requirements (1 and 3 PH) Supply Circuit Breaker

20 Amps

Extension Cord Size

25 ft - 10 gauge, up to 75 ft - 8 gauge

NOTE: Electrical wiring must conform to all local and national electrical codes.

Electric Heaters Voltage

Power Rating Watts

Current

Resistance

208/230

2000

14.7 Amps

16.2 Ohms at 230 V

Maintenance Inspection Schedule A closely followed maintenance program will help to keep your Thermo King unit in top operating condition. The following general schedule is provided to assist in monitoring that maintenance.

After first week of operation:

For more specific detail, see the maintenance manual for your unit and to the PreTrip Inspection chapter in this manual.

•

Check belt tension.

•

Tighten unit mounting bolts.

•

Check refrigerant level.

Maintenance Inspection Schedule

Weekly

Monthly

SemiAnnual

Annual

Inspect/Service These Items

ELECTRICAL •

•

Check defrost initiation and termination.

•

•

Check thermostat cycle sequence.

•

•

Check operation of protection shutdown circuits.

•

Check thermostat and thermometer calibration in 0 C (32 F) ice-water bath.

•

Inspect wire harness for damaged wires or connections.

REFRIGERATION •

•

Check refrigerant level.

•

Replace dehydrator.

STRUCTURAL •

•

•

•

Visually inspect unit and refrigerant hoses for fluid leaks.

•

•

•

•

Visually inspect unit for damaged, loose or broken parts.

•

•

•

•

Clean defrost drains.

•

•

•

Inspect belts for condition and proper tension

•

•

•

Clean entire unit including evaporator coil and condenser coil.


Weekly

Monthly

SemiAnnual

Annual

•

•

Inspect/Service These Items Check all unit mounting bolts, brackets, lines, hoses, etc.


Warranty Terms of the Thermo King Warranty are available on request. Please reference document TK 51350 for the Thermo King Vehicle-Powered Truck Unit Warranty.

Warranty

Glossary This glossary is published for informational purposes only and the information being furnished herein should not be considered as all-inclusive or meant to cover all contingencies.

box temperature: The temperature within a

NOTE: Additional terms not found in the glossary may be located in the index section of this manual.

raise the temperature of one pound of water by one degree Fahrenheit. 1 Btu = 252 calories.

accumulator: A device located in the suction line to collect

bulkhead: 1) return air bulkhead . A metal or plastic “wall”

liquid refrigerant and meter it safety back to the compressor as gas.

placed at the front of the box to prevent loading of product tightly against the Thermo King unit. (Loading too close to the unit restricts air flow and system efficiency.) 2) bulkhead divider . A thick, insulated “wall” used to separate compartments of a multi-temperature truck or trailer.

ambient air temperature: Temperature of the air surrounding an object.

amp: Abbreviation for ampere. The basic measuring unit of electrical current.

bar: A metric unit of pressure. 1 bar = 100 kPa = 14.5 psi. Battery Sentry: Part of the CYCLE-SENTRY™ system. The Battery Sentry module monitors alternator charge rate and will keep the unit running until the battery is adequately charged.

temperature-controlled compartment.

Btu (british thermal unit): The quantity of heat required to

calorie: The amount of heat required to raise temperature of one gram of water one degree Celsius. 1 calorie = 0.004 Btu.

Celsius: The metric unit of temperature measurement. The preferred alternate to the term centigrade. Abbreviated “C.”

centigrade. See Celsius.

Glossary

CFC: Chlorofluorocarbon. A chlorine-based refrigerant

condenser: An arrangement of tubing in which the

consisting of chlorine, fluorine and carbon. Example: R12. In many countries it is illegal to release this type of refrigerant to the atmosphere because chlorine damages the earth’s atmosphere. CFC refrigerants are not used in modern Thermo King units.

vaporized and compressed refrigerant is liquefied as heat is removed.

circuit breaker: A thermal device that automatically interrupts an electrical circuit when the current in the circuit exceeds the predetermined amperage rating of the breaker. See amp.

coil: A cooling or heating element made of pipe or tube, formed into a helical or serpentine shape, that may be equipped with thin metal fins to aid heat transfer.

cold curtains: Flexible vinyl curtains used to reduce air exchange between the refrigerated compartment and the outside during door openings.

compound gauge: A gauge calibrated in psig (or kPa) to measure pressure, and in inches of mercury (Kg/cm2) to measure vacuum.

compressor: The refrigeration component that compresses refrigerant vapor and creates refrigerant flow.

cycles per second: See Hertz. damper door: A door on the evaporator section that closes during defrost to prevent hot air from entering the refrigerated cargo compartment.

data logger: An electronic device that monitors and stores unit operating and temperature data for later review. Examples: DMS, DAS, DRS and AccuTrac.

DE: Dual Evaporator. A multi-temp host unit with two evaporators capable of refrigerating two separate, longitudinal compartments.

defrost: The removal of accumulated ice from an evaporator coil. Periodic defrost is necessary when the evaporator coil is operating below freezing. Defrost is required more frequently when the air passing through the evaporator has a high moisture content.

defrost termination switch: A component that terminates defrost operation at a specific temperature.

Glossary

defrost timer: A solid state module that initiates defrost at

evaporator: The part of the refrigeration system that absorbs

selected intervals. Also establishes a maximum defrost duration if normal circuits malfunction.

heat during the cooling cycle.

dehydrator: A device used to remove moisture from

ECT and TLE .

refrigerant. Also called a drier.

discharge air temperature: The temperature of air leaving the evaporator.

drier: See dehydrator. ECT: A ceiling-mounted Thermo King remote evaporator. See EW and TLE . ERC: Extended Remote Unit Control. (Door switches) An option on Thermo King multi-temperature units to improve temperature control when doors are opened during delivery. When a compartment door is opened, the refrigeration unit for that compartment may be forced to NULL, defrost, or some other mode. Opening a compartment door may also affect the operating mode of other compartments. ERC systems are connected in a variety of ways to meet customer needs.

ETV (Electronic Throttling Valve) : A device used with a microprocessor to precisely control the refrigeration system.

EW: A wall-mounted Thermo King remote evaporator. See F: See Fahrenheit . Fahrenheit: A unit of temperature measurement used in the United States. Abbreviated “F.”

freeze up: 1) Failure of a refrigeration system to operate normally due to moisture in the refrigerant and the formation of ice at the expansion valve. The expansion valve may be frozen shut or open, causing improper unit operation in either case. 2) The formation of a solid ice mass over the evaporator coil reducing air flow.

fuse: An electrical safety device (typically a cartridge) inserted into an electrical circuit. It contains material that will melt or break when the current is increased beyond a specific value. When this occurs, the circuit is opened and electrical current flow is stopped.

Glossary

fusible link: An electrical safety device (typically a short

hp (horsepower): A unit of power equivalent to 746 watts

piece of wire) inserted into an electrical circuit. The wire melts or breaks when the current is increased beyond a specific value. When this occurs, the circuit is opened and electrical current flow is stopped.

or 550 foot-pounds per second.

HCFC: Hydrochlorofluorocarbon. A chlorine-based refrigerant containing hydrogen, chlorine, fluorine and carbon. Example: R22. Because chlorine damages the earth’s atmosphere, in many countries, it is illegal to release this type of refrigerant to the atmosphere. HCFC refrigerants are not used in modern Thermo King units.

HPCO (High Pressure Cut Out Switch): A pressure-operated switch that opens to stop unit operation when discharge pressure reaches a predetermined maximum.

invertible: A multi-temperature truck or trailer unit designed to allow the placement of deep-frozen cargo in any compartment. See Multi-Temp.

kPa: Kilopascals. A metric unit of pressure. 1 kPa = 0.01 bar = 0.145 psi.

Hertz: A unit of frequency equal to one cycle per second.

load: 1) The product being refrigerated and transported.

Abbreviated “Hz.”

2) The amount of heat being removed by the refrigeration system. (For example, a compressor is under a heavy heat load when expected to cool a very warm box.)

HFC: A refrigerant consisting of hydrogen, fluorine and carbon. Examples: R134a and 404A. HFC refrigerants contain no chlorine and are, therefore, considered “safe” for the environment.

high pressure relief valve: A safety valve on the refrigeration system that allows refrigerant to escape from the system if pressure exceeds a predetermined value.

LPCO (Low Pressure Cut Out Switch): A pressure-operated switch that opens to stop unit operation when suction pressure reaches a predetermined minimum.

modulation: An optional system that reduces load (product) dehydration and avoids “top freeze.”

Glossary

movable bulkhead: A thick, insulated, portable wall-like

psi: Pounds per square inch. A unit of pressure.

device used to compartmentalize a temperature-controlled truck or trailer. See bulkhead .

1 psi = 0.069 bar = 6.89 kPa.

Multi-Temp: A Thermo King truck or trailer unit capable of maintaining different set-points in multiple compartments.

square inch as displayed by a gauge calibrated to zero when open to the atmosphere.

no. 1 diesel fuel: A grade of diesel fuel formulated to

receiver tank: A refrigerant storage device included in

prevent “jelling” in low ambient temperatures.

nearly all Thermo King units.

no. 2 diesel fuel: A grade of diesel fuel formulated for

refrigerant: The medium of heat transfer in a refrigeration

moderate to warm ambient temperatures.

system which absorbs heat by evaporating at a low temperature and releases heat by condensing at a higher temperature.

ohm: An electrical unit measuring the amount of resistance (opposition to the current flow) in an electrical circuit.

pre-cooling: 1) To cool down an empty box

psig: Pounds per Square Inch Gauge. Pressure in pounds per

refrigerant oil: A special oil used to lubricate compressors in refrigeration systems.

(temperature-controlled area) to the desired load temperature prior to loading. 2) To cool cargo to a desired temperature before loading.

remote evaporator: A separate evaporator unit located in a

pre-heat: The heating of diesel engine glow plugs prior to

return air bulkhead: A structure (metal or plastic) mounted

start-up. Some engines use an intake manifold heater rather than glow plugs.

in the front of a trailer and designed to prevent restriction of return air flow to the Thermo King unit due to improper loading. See bulkhead .

pre-trip inspection: Checking the operation of a refrigeration system before loading.

second or third compartment of a multi-temperature truck or trailer unit.

Glossary

return air temperature: The temperature of the air

Vac (volts alternating current): An electric current that

returning to the evaporator. See box temperature.

reverses direction at regularly recurring intervals.

rpm: Revolutions per minute.

Vdc (volts direct current): An electric current that flows in

setpoint: The temperature selected on a thermostat or microprocessor controller. This is normally the desired box temperature.

short cycling: When a refrigeration unit cycles between the heat and cool modes more often than normal.

sight glass: A system component that permits visual inspection of oil or refrigerant level and condition.

thermostat: A device that controls unit modes of operation to maintain a selected box temperature.

TLE: Thin-line evaporator. A Thermo King remote evaporator designed to be compact (thin) while supplying superior air flow. See ECT and EW.

top freeze: When the top portion of perishable cargo is damaged by freezing temperatures discharged from the refrigeration unit. This may occur near the front of the box when product is placed too close to the cold, discharge air flow.

one direction only and is constant in value.

volts: The basic measuring unit of electrical potential. watt: The basic measuring unit of electrical power.

Index A After Start Inspection 37 C Cab Control Box Operating Instructions (M-13, M-16, M-17) 32 Compressor 15 Control Circuits 16 D Defrost Mode Operation (M-13, and M-16 only). 33 Display 26 Display Setpoint Temperature 32 Displaying Return Air Temperature 32 E Electric Standby Operation 17 Electrical Hazard 10 ELECTRICAL SYSTEM 46 Emergency Cold Line 65

enroute inspections 39, 42 Enter Setpoint Temperature. 33 Evaporator 16 Evaporator Drain Tube Heaters 17 F First Aid-Refrigerant 11 First Aid-Refrigerant Oil 11 Fuses 20 G GENERAL 45 General Display Information 26 I In-Cab Control Box 16 In-Cab Control Box Description 25 inspecting load 41 Introduction 13 introduction 7

Index

K keypad TK logo 27 L Liquid Injection System 17 loading inspections 39 loading procedures pre-loading inspection 39 M Maintenance 49 Maintenance Inspection Schedule 49 O Oil Separator 18 Operating Instructions 31 P pre-loading inspection 39 Protection Features 19 R Refrigerant 10 17

Refrigerant Oil 11 S Safety Decals 12 Safety Precautions 9 standard display 27 T TK logo key 27 U Unit Description 13 Unit Features 14 Unit Operation 37 W warranty 53 Weekly Pretrip Inspection 34

Serial Number Locations

Serial Number Locations CONDENSER: Nameplate located on the back inside wall of condenser frame.

1

ENGINE DRIVEN COMPRESSOR: Nameplate located on

2

AMA511

compressor body. The engine driven compressor is located in the truck engine compartment.

STANDBY COMPRESSOR: Nameplate located on compressor body. The Standby compressor is located inside the Condenser assembly.

1.

Condenser Serial Number Location

2.

Stand By Compressor Serial Number Location

Figure 25: Condenser and Standby Compressor Serial Number Locations

Serial Number Locations

Emergency Cold Line The answering service at the factory will assist you in reaching a dealer to get the help you need. The Cold Line is answered 24 hours a day by personnel who will do their best to get you quick service at an authorized Thermo King Dealer.

AKB12

If you can’t get your rig rolling, and you have tried the Thermo King North American Service Directory (available from any Thermo King dealer) to reach a dealer without success, then call the Toll Free Emergency Cold Line Number (888) 887-2202.

51878-1-OP V-500 10-20, V-500 MAX 10-20 (Rev 0, 11-04)

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