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Thermo King MD-200 User Manual

Thermo King MD-200
142 pages
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MD-200
w/TK 3.74
TK 51912-1-MM (Rev. 0, 07/03)
Copyright© 2000 Thermo King Corp., Minneapolis, MN, USA.
Printed in USA.

Table of Contents

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Thermo King MD-200 Specifications

General IconGeneral
BrandThermo King
ModelMD-200
CategoryRefrigerator
LanguageEnglish

Summary

Safety Precautions

Electrical Hazards

Warnings and procedures to prevent electrical shock and component damage.

High Voltage

Safety measures and first aid for working with high voltage systems.

Unit Operation

Pre-trip Inspection (Before Starting Unit)

Procedure for conducting a thorough inspection before unit startup.

Starting Unit (Full Unit Self Check)

Step-by-step guide for performing a complete unit checkout.

Remote Control Panel Features

CHANGING THE SETPOINT

Step-by-step procedure for adjusting the unit's temperature setpoint.

STARTING THE ENGINE

Procedure for starting the unit's engine using the remote control panel.

µp-T Alarms

Alarms and Alarm Codes

Explanation of how alarm codes are generated and stored in the microprocessor.

µP-T Unit Self Check Test

Starting the Unit Self Check

Steps required to initiate the automated unit self-check procedure.

Electrical Maintenance

MD-200 Units Equipped with a Three-Phase Electric Motor and a Phase Converter That Operates on Single-Phase Power

Explanation of how the unit operates on single-phase power using a phase converter.

Engine Maintenance

Engine Cooling System

Overview of the closed, pressurized cooling system and its components.

Engine Fuel System

Description of the high-pressure diesel fuel system and its components.

Refrigeration Maintenance

Evacuation

Importance and principles of system evacuation to remove moisture and non-condensables.

Set Up and Test of Evacuation Equipment

Procedures for connecting and testing evacuation equipment before use.

Unit Evacuation

Step-by-step guide for evacuating the refrigeration system to a low micron level.

Refrigerant Leaks

Methods for detecting and identifying leaks in the refrigeration system.

Unit Charging

Procedures for charging the refrigeration system with refrigerant after repairs.

Refrigerant Charge

Methods for testing the refrigerant charge under various operating conditions.

High Pressure Cutout (HPCO)

Function and testing of the high pressure cutout switch for system protection.

Refrigeration Service Operations

Compressor

Detailed steps for removing and installing the unit's compressor.

Mechanical Diagnosis

Unit switch On—nothing happens

Troubleshooting steps for when the unit does not respond to the switch.

Engine cranks but fails to start

Common causes and remedies for engine starting issues.

Engine stops after starting

Troubleshooting steps for when the engine stops shortly after starting.

Engine does not reach full power

Diagnosing and fixing issues related to the engine not achieving full power.

Engine is sooting heavily, emits thick black clouds of smoke (excessive fuel to air ratio)

Causes and remedies for excessive smoke due to incorrect fuel-air mixture.

Engine knocks

Troubleshooting steps for engine knocking sounds.

Engine runs hot

Diagnosing and resolving engine overheating issues.

Battery is not recharging

Troubleshooting steps for issues with the battery not recharging.

Electric Standby (Optional) Diagnosis

Unit switch On—Microprocessor display does not come on

Troubleshooting steps when the microprocessor display is blank.

Unit switch On—Microprocessor display comes on but electric motor does not run

Diagnosing why the electric motor does not run when the display is active.

Electric motor hums but does not run

Troubleshooting steps for an electric motor that hums but doesn't operate.

Battery is not recharging

Steps to diagnose and fix battery recharging problems in electric standby mode.

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