HVAC Technician

Lessons

S-01 | Electrical Energy Preview S-02 | Atomic Structure Preview S-03 | Structure of matter S-04 | Electron Movement S-05 | Electrical Current S-06 | Types of Current S-07 | Ohm’s Law S-08 | Voltage S-09 | Potential Difference S-10 | Amperage S-11 | Resistance S-12 | Electrical Load S-13 | Types of Circuits S-14 | Checking Circuits with the Multimeter S-15 | Electrical Power S-16 | Reading and Interpreting Electrical Diagrams S-17 | Electrical Control Components S-18 | Understanding Electrical Circuits S-19 | Pictorial Diagrams S-20 | Module 1 Quizz

Lessons

S-01 | Electrical Safety Preview S-02 | Electrical Distribution S-03 | Module 2 Quizz

Lessons

S-01 | Electrical Installation S-02 | Electrical Power Source S-03 | Electrical Materials S-04 | Wire Sizes S-05 | Conductor Dimensions S-06 | Insulated Wires S-07 | Module 3 Quizz

Lessons

S-01 | Electrical Controls S-02 | Primary Controls S-03 | Mechanical Reaction of Contacts and Switches S-04 | Single Phase Contactors S-05 | Mechanical Reaction of Contacts and Switches S-06 | Relays S-07 | Fan Relay S-08 | Relay Function S-09 | Time Delay S-10 | Switches S-11 | Secondary Controls S-12 | Circuit Protection S-13 | Fuses S-14 | Fuse Holders S-15 | Breakers S-16 | High Pressure Switch S-17 | Low Pressure Switch S-18 | Float Switch S-19 | Fusible Links or Micro-Temp S-20 | Timers S-21 | Limits S-22 | Sail Switch S-23 | Heater Protector S-24 | Heat and Cool Only Thermostats S-25 | Thermostat Sub-Base S-26 | Thermostat Layers S-27 | Heat Anticipator S-28 | Module 4 Quizz

Lessons

S-01 | Understanding Heat Preview S-02 | What is British Thermal Unit (BTU)? S-03 | Specific Heat S-04 | BTU S-05 | Specific Latent Heat Application in Everyday Life S-06 | Physical States of Matter S-07 | Atoms and Molecules S-08 | Changes of Physical States of Matter S-09 | Latent Heat S-10 | Latent Heat Substance Changes S-11 | Sensible Heat S-12 | Boiling and Condensing Point S-13 | Superheat and Sub-cool S-14 | Compression Cycle of the Refrigerant S-15 | Module 1 Quizz

Lessons

S-01 | Basic Refrigeration Cycle S-02 | Condition of Refrigerant in the Refrigeration Cycle S-03 | Condition of Refrigerant in Each Component S-04 | Evaporator S-05 | Saturation and Temperature Condition in the Evaporator S-06 | Suction Line S-07 | Compressor S-08 | Reciprocating Compressor S-09 | Rotary Compressor S-10 | Scroll Compressor S-11 | Screw Compressor S-12 | Centrifugal Compressor S-13 | Discharge Line or Hot Gas Line S-14 | Condenser S-15 | Condenser Fan Motor S-16 | Liquid Receiver S-17 | Liquid Line S-18 | Metering Devices for Refrigerant S-19 | Capillary Tube – Fixed Type S-20 | Accurator (Piston) – Fixed Type S-21 | Solenoid Valve S-22 | Oil Separator S-23 | Heat Exchanger S-24 | Suction Line Accumulator S-25 | Refrigerant Sight Glass S-26 | Module 2 Quizz

Lessons

S-01 | Filter Dryers S-02 | Chemicals in a Cooling System S-03 | How Do You Select Filter Dryers? S-04 | Module 3 Quizz

Lessons

S-01 | Access Valves S-02 | Three Position Service Valve S-03 | Back Seated Position S-04 | Mid-Seated Position S-05 | Front Seated Position S-06 | Two Position Service Valve (Front-Seated Only) S-07 | Piercing Valve S-08 | Low Loss Valve S-09 | Access Valve with Schrader Valve (Core Valve) S-10 | Core Removal Tools of the Schrader Valve S-11 | Process Valve S-12 | Module 4 Quizz

Lessons

S-01 | Manifold Pressure Gauges S-02 | Pressure Classification S-03 | Pressure Measurement S-04 | Pressure Temperature Chart (T/P) S-05 | Pressure Gauges S-06 | Service Hose S-07 | Operational Positions for Refrigerant Manifold Gauges S-08 | Handling the Refrigerants Manifol S-09 | A – Measuring Pressure (Unit Running) S-10 | B – Evacuation (System Off) S-11 | C – Charging Vapor (Unit Running) S-12 | D – Charging Vapor (Unit Running) S-13 | E – Charging Liquid (System Off) S-14 | F – Recovery of Liquid (System Off) S-15 | G – Recovery of Liquid/Vapor (Sys S-16 | H – Nitrogen Pressurization (Syst S-17 | I – Flushing the System (System Off) S-18 | J – Adding Oil to Compressor (Unit Running) S-19 | Module 5 Quizz

Lessons

S-01 | What is Refrigerant? S-02 | Chemical Structure of Refrigerant S-03 | Halide Refrigerants S-04 | Azeotropics Blends S-05 | Refrigerant Application S-06 | Safety Precautions for Refrigeran S-07 | Refrigerant Oils S-08 | Types of Refrigerant Oils S-09 | Module 6 Quizz

Lessons

S-01 | Removal of Moisture in a System S-02 | Nitrogen S-03 | Nitrogen Regulator S-04 | Leak Detection and Verification S-05 | Nitrogen Pressurization S-06 | Evacuation (Vacuum Process) S-07 | Vacuum Pumps S-08 | Electronic Vacuum Gauge S-09 | Purging with Nitrogen While Brazing S-10 | Module 7 Quizz

Lessons

S-01 | Recovery S-02 | Instruments & Components for Recovery S-03 | Refrigerant Bottle & Recovery Cylinders S-04 | Process of Recovery S-05 | Disposable Cylinders S-06 | Module 8 Quizz

Lessons

S-01 | What is Superheat? S-02 | What is Sub-Cooling?

Lessons

S-01 | General introduction S-02 | Exam Format S-03 | Certification: Type I S-04 | Certification: Type II S-05 | Certification: type III

Lessons

S-01 | Stratospheric Ozone Degradation S-02 | Ozone Depletion Effects S-03 | Ozone Depletion Potential (ODP) S-04 | Types oF Refrigerants According to Compound S-05 | CFC – “Chlorine, Fluorine and Carbon” S-06 | HCFC – “Hydrogen, Chlorine, Fluorine and Carbon” S-07 | HFC – “Hydrogen, Fluorine and Carbon” S-08 | Refrigerants and Oils Substitutes S-09 | Refrigerant Mixture S-10 | Green House Effect S-11 | Detecting Leaks S-12 | Oils S-13 | Security in Refrigerants S-14 | The Montreal Protocol – “Reduction in production and regulation in the use oF CFC’s and HCFC’s.” S-15 | Appliances Pressure Classification S-16 | Clean Air Act S-17 | Clean Air Act Enforcement S-18 | Section 608 Violations S-19 | Condition of Refrigerant in Each Component S-20 | Drying Filter S-21 | Test and Charging manifold Gauges S-22 | Operational Positions for Refrigerant Manifold Gauges S-23 | Evacuation Process S-24 | Dehydration S-25 | The Electronic Vacuum Gauge S-26 | Safety S-27 | Pressure Measurements S-28 | The 3 "R's" S-29 | Recovery Devices S-30 | Disposable Cylinder S-31 | White Recovery Cylinders S-32 | Rechargeable Recovery Cylinder S-33 | Recovery Techniques S-34 | Risks of Filling Cylinders more than 80 Percent S-35 | Cylinder Transportation S-36 | Module 2 Quizz

Lessons

S-01 | Type I: Introduction S-02 | Type I: Revision S-03 | Saturation Point S-04 | Pressure and Temperature Chart (T/P) S-05 | Piercing Valves S-06 | Low Loss Valves S-07 | Recovery and Recycle Requirements S-08 | Recovery Process S-09 | Recovery Techniques S-10 | Discovery of Acidity in the System S-11 | Leak Verification Process and Requirements S-12 | Acidity test of the Refrigerant S-13 | Pressure and Temperature Comparison S-14 | Security Recommendations S-15 | Cylinder Transportation S-16 | Module 03 Quizz

Lessons

S-01 | Type II: Revision S-02 | Service Valves or three (3) Position Valves S-03 | Instruments and Components for Leak Detection S-04 | Nitrogen Regulator S-05 | Nitrogen Cylinder S-06 | Soap Solution to Detect Leaks S-07 | Electronic Leak Detector S-08 | R-22 Refrigerant S-09 | Fluorescent red | ink Fluorescent S-10 | Leak Detection Process S-11 | Leak Repair Requirements S-12 | The Recovery in Type II S-13 | Recovery Techniques and Requirements S-14 | The Recovery Process S-15 | Instruments and Components for Recovery S-16 | Loading Refrigerant into the System S-17 | Types of Repairs S-18 | Greater Repairs S-19 | Smaller Repairs S-20 | Recommendations S-21 | Module 04 Quizz

Lessons

S-01 | Type III: Revision S-02 | Understanding Low Pressure Chiller S-03 | Purging Machine S-04 | Purging Unit S-05 | Evaporator Charge Valve S-06 | Refrigerant Sight Glass S-07 | Removing Oil S-08 | Leak Detection S-09 | Leak Repair Requirements S-10 | Recovery Process S-11 | Recovery Requirements S-12 | Module 5 Quizz

Lessons

L-01 | Safety and Awareness of the Refrigerants L-02 | Refrigerants Blends – Azeotrope L-03 | Refrigerants Blends – Zeotrope L-04 | New Refrigerants L-05 | HFOs Refrigerants L-06 | Temperature/Pressure Relationship – Blends L-07 | Superheat – Blends L-08 | Subcooling – Blends L-09 | Midpoint L-10 | Calculate Midpoint L-11 | Modern Refrigerants L-12 | Refrigerant Letter Designations L-13 | Refrigerant Lowercase Letter Designations L-14 | Refrigerant Uppercase Letter Designations L-15 | Module 1 Quizz

Lessons

L-01 | Refrigerant Oils L-02 | Mineral Oil (MO) L-03 | Alkybenzene (AB) L-04 | Polyol Ester (POE) L-05 | Polyvinil Ether (PVE) L-06 | Polyalkylene Glycol (PAG) L-07 | Refrigerant Oils Caution L-08 | Refrigerant Oils Care L-09 | Module 2 Quizz

Lessons

L-01 | Refrigerants Classification L-02 | ASHRAE Standard 34 L-03 | Flammability Test L-04 | Refrigerants Concentration Limits (RCL) L-05 | Module 3 Quizz

Lessons

L-01 | Introduction L-02 | Refrigerant Charging L-03 | A2L Refrigerant Charging L-04 | Refrigerant Recovery L-05 | Reclamation L-06 | A2L Refrigerant Recovery L-07 | Refrigerant Recovery Equipment L-08 | Refrigerant Recovery Procedures L-09 | Advice on Refrigerant Recovery L-10 | Module 4 Quizz

Lessons

L-01 | Evacuation (Vacuum) L-02 | Evacuation Equipment L-03 | Evacuation Procedures L-04 | Advice on Evacuation L-05 | Module 5 Quizz

Lessons

L-01 | Brazing L-02 | Brazing Safety for A2L L-03 | Brazing Equipment L-04 | Leak Testing L-05 | Leak Testing Equipment L-06 | Module 6 Quizz

Lessons

L-01 | Safety Handling and Awareness of the Refrigerant L-02 | Flammable Refrigerants L-03 | Transport of Flammable Refrigerant L-04 | Workplace Safety L-05 | A2L Refrigerants Types L-06 | R-454B Refrigerant L-07 | R-32 Refrigerant L-08 | Regulations support wider A2L adoption L-09 | A2L Servicing Best Practices L-10 | Module 7 Quizz