CONTENTS
Leak Detectors .........................................................3
Gauge Manifold ........................................................3
Leak Test ..................................................................4
Evacuation ........................................................ 4 & 5
Charging ..................................................................5
Manual 2100-479
Page
2 of 11
Troubleshooting the Mechanical System
Low Suction - Low Head Pressure .........................9
High Suction - Low Head Pressure ........................9
Low Suction - High Head Pressure ........................9
High Suction - High Head Pressure ........................9
Figures
Figure 1: Typical AC System Cooling Cycle .............6
Figure 2: Typical HP System Cooling Cycle ............7
Figure 3: Heating Cycle ...........................................8
Charts
Troubleshooting Chart for Air Conditioners ............10
Troubleshooting Chart for Air-to-Air Heat Pumps ....11