SECTION 1 FUNDAMENTALS Unit 1 Introduction to HVAC/R Unit 2 Being a Professional HVAC/R Technician Unit 3 Safety Unit 4 Hand and Power Tools Unit 5 Fasteners Unit 6 Measurements (NEW!) SECTION 2 HVACR SCIENCE Unit 7 Properties of Matter Unit 8 Types of Energy and Their Properties Unit 9 Temperature Measurement and Conversion Unit 10 Thermodynamics - The Study of Heat Unit 11 Pressure and Vacuum Unit 12 Calibration of Meters and Instruments SECTION 3 REFRIGERATION SYSTEMS AND COMPONENTS Unit 13 Types of Refrigeration Systems Unit 14 Vapor Compression Refrigeration Cycle Unit 15 Compressors Unit 16 Condensers Unit 17 Metering Devices Unit 18 Evaporators Unit 19 Refrigerants Unit 20 Refrigeration Accessories Unit 21 Plotting the Refrigeration Cycle SECTION 4 REFRIGEATION PRACTICES Unit 22 Refrigeration Safety (NEW!) Unit 23 Refrigerant System Servicing and Testing Equipment Unit 24 Piping and Tubing Unit 25 Soldering and Brazing Unit 26 Refrigerant System Piping Unit 27 Accessing Refrigeration Systems Unit 28 Refrigerant Management Unit 29 Leak Testing Unit 30 Evacuation Unit 31 Charging SECTION 5 HVAC/R ELECTRICAL SYSTEMS AND COMPONENTS Unit 32 Electrical Safety (NEW!) Unit 33 Basic Electricity Unit 34 Alternating Current Fundamentals Unit 35 Electric Meters and Test Instruments Unit 36 Electrical Components Unit 37 Motors Unit 38 Diagrams Unit 39 Control Systems Unit 40 Communicating Systems (NEW!) SECTION 6 AIR CONDITIONING SYSTEMS Unit 41 Psychrometrics and Airflow Unit 42 Filters Unit 43 Ventilation & Dehumidification (NEW!) Unit 44 Residential Air conditioning Unit 45 Installing Air Conditioning Unit 46 Duct Installation Unit 47 Troubleshooting Air Conditioning SECTION 7 HEATING SYSTEMS Unit 48 Principles of Combustion and Safety Unit 49 Gas Furnaces Unit 50 Gas Furnace Controls Unit 51 Gas Furnace Installation Unit 52 Troubleshooting Gas Furnaces Unit 53 Oil Heating Systems & Service Unit 54 Residential oil Heating Installation Unit 55 Oil Furnace and Boiler Service Unit 56 Oil Heating Startup and Troubleshooting Unit 57 Space Heaters Unit 58 Humidifiers SECTION 8 HEAT PUMP SYSTEMS Unit 59 Electric Heat Unit 60 Electric Heat Installation Unit 61 Troubleshooting Electric Heat Unit 62 Types of Heat Pump Systems Unit 63 Heat Pump Components Unit 64 Air Source Heat Pumps Unit 65 Geothermal Heat Pumps Unit 66 Troubleshooting Heat Pumps SECTION 9 SYSTEM DESIGN, SIZING, AND LAYOUT Unit 67 Basic Building Construction Unit 68 Green Buildings and Systems (NEW!) Unit 69 Indoor Air Quality Unit 70 Residential Load Calculations Unit 71 Duct System Design Unit 72 Zone Control Systems Unit 73 Testing and Balancing Air Systems SECTION 10 COMMERCIAL ENVIRONMENTAL SYSTEMS Unit 74 Commercial Air Conditioning Systems Unit 75 Commercial AC Fans and Air Handling Units Unit 76 Single Zone Rooftop Unit Installation Unit 77 Zoned Systems Unit 78 Commercial Control Systems Unit 79 Chilled Water Systems Unit 80 Hydronic Heating systems Unit 81 Boilers and Related Equipment Unit 82 Cooling Towers & Chillers SECTION 11 COMMERCIAL REFRIGERATION SYSTEMS Unit 83 Thermal Storage Systems Unit 84 Food Preservation Unit 85 Commercial Refrigeration Systems Unit 86 Supermarket Equipment Unit 87 Ice Machines (NEW!) Unit 88 Troubleshooting Refrigeration Systems SECTION 12 INSTALLATION, MAINTENANCE, SERVICE AND TROUBLESHOOTING Unit 89 Installation Unit 90 Planned Maintenance Unit 91 Refrigeration System Cleanup (NEW!) Unit 92 Troubleshooting.