This comprehensive videotape-based training program is part of the Introduction to Air Conditioning and Refrigeration library which consists of 8 modules (8 videotapes) that train how to understand, maintain, test, and troubleshoot air conditioning and refrigeration systems.

Introduction to Air Conditioning and Refrigeration


Vapor Compression Cycle Designs and Refrigerants


Test and Maintenance Equipment


System Operation Checks


Pump Down, Evacuation, and Charging


Mechanical Troubleshooting


Electrical Controls and Circuits


Electrical Troubleshooting

• Refrigeration
• Heat Transfer
• Phase Changes
• Condensation and Expansion
• Refrigerant Tables
• Review

• Evaporator Operation
• Reciprocating Compressor Operation
• Centrifugal Compressor Operation
• Condenser Operation
• Metering Devices

• Temperature Sensors
• Pressure Gauges
• Gauge Manifold
• Leak Detecting Procedures
• Using Leak Detectors
• Vacuum Pumps and Vacuum Gauges

• General System Checks
• Checking the Refrigerant Charge · Removing Oil
• Testing Oil and Adding Oil
• Checking the
• Compressor Motor
• System Start-Up

• System Pump Down
• System Evacuation
• High-Side Charging
• Low-Side Charging
• Determining Proper Charge

• Mechanical Troubleshooting
• General Troubleshooting Approach
• Short-Cycling
• Restrictions in the Liquid Line
• Insufficient Cooling
• Condenser Operation
• Heat Transfer
• Filter Drier

• Cycle Controls
• Pump Down Cycle
• Safety Controls
• Safety Control Circuits
• Interlocks
• Interlocks in a Chiller System
• Relays, Contactors, and Overload Protectors

• Introduction to Troubleshooting
• Dividing and Checking Circuits
• Troubleshooting a Motor Contactor Coil
• Trouble-shooting a Control Circuit
• Troubleshooting a Low Pressure SwITC Learningh
• Troubleshooting a Tripped Circuit Breaker