Refrigerant Cycle Heat Pump – Step by Step
Cooling Mode (Like an AC)
Compressor: Pressurizes cold vapor → becomes hot, high-pressure gas.
Condenser (Outside): Releases heat to the air → gas turns into liquid.
Expansion Valve: Drops pressure → refrigerant becomes cold mist.
Evaporator (Inside): Absorbs heat from the house → refrigerant turns to gas.
Cycle Repeats: Heat gets moved out of the house to keep it cool.
Heating Mode
Compressor: Pressurizes cold vapor → becomes hot, high-pressure gas.
Condenser (Now Inside): Releases heat into the house → gas becomes liquid.
Expansion Valve: Drops pressure → refrigerant cools down.
Evaporator (Now Outside): Absorbs heat from outdoor air, even in cold weather.
Cycle Repeats: Heat gets moved into the house to warm it up.
💡 How This Course Works
60 Short Video Lessons
(around 4 minutes each)
13 Downloadable E-books
(1 per module)
HVAC Tech Certificate
🧩 Full training Breakdown
📦 Module 1: Welcome & Introduction to HVAC
📗👇 Download Ebook - Welcome & Introduction to HVAC
- 🎥 Video Class 1 – Welcome to AC Tech Pro
- 🎥 Video Class 2 – How This Course Works
- 🎥 Video Class 3 – Essential Tools for Residential AC Work
- 🎥 Video Class 4 – Personal Safety, PPE, and Jobsite Risks
- 🎥 Video Class 5 – Basic Fire, Chemical, and Electrical Safety
🛠️ Module 2: HVAC Science & Heat Transfer
📗👇 Download Ebook - HVAC Science & Heat Transfer
- 🎥 Video Class 6 – Thermodynamics and Heat Transfer
- 🎥 Video Class 7 – Sensible vs Latent Heat, BTU
- 🎥 Video Class 8 – Refrigeration Cycle: Compressor, Condenser, Evaporator, Metering Device
🌬️Module 3: Refrigerants and Charging
📗👇 Download Ebook - Refrigerants and Charging
- 🎥 Video Class 9 – Superheat, Subcooling, and Saturation
- 🎥 Video Class 10 – Refrigerant Charge: Pressure and Temperature
- 🎥 Video Class 11 – Refrigerant Classification: Flammable vs. Non-Flammable
- 🎥 Video Class 12 – Refrigerant Working Pressures and Temperatures
⚡ Module 4: Electrical Fundamentals
📗👇 Download Ebook - Electrical Fundamentals
- 🎥 Video Class 13 – Understanding Ohm’s Law (HVAC Examples)
- 🎥 Video Class 14 – Series and Parallel Circuits
- 🎥 Video Class 15 – Using a Multimeter: Volts, Amps, Ohms
🔧 Module 5: Motors, Controls & Thermostats
📗👇 Download Ebook - Motors, Controls & Thermostats
- 🎥 Video Class 16 – Blower Motors, Condenser Motors, ECM/X13
- 🎥 Video Class 17 – Replacing ECM or X13 Motor with a PSC Motor
- 🎥 Video Class 18 – Start/Run Capacitors: Testing and Replacement
- 🎥 Video Class 19 – Relays and Contactors: Diagnosis and Wiring
- 🎥 Video Class 20 – Thermostat Wiring and Control Logic
- 🎥 Video Class 21 – Low and High Voltage Circuit Flow (Wiring Guide)
- 🎥 Video Class 22 – Smart Thermostats: Installation & Troubleshooting
🧊 Module 6: Troubleshooting: Electrical & Mechanical
📗👇 Download Ebook - Troubleshooting: Electrical & Mechanical
- 🎥 Video Class 23 – Airflow and Refrigerant Charge Problems
- 🎥 Video Class 24 – Electrical Troubleshooting — Step-by-Step
- 🎥 Video Class 25 – Mechanical Troubleshooting and Noise Diagnosis
- 🎥 Video Class 26 – How to Test a Compressor
🏠 Module 7: Heat Pumps & Gas Furnaces
📗👇 Download Ebook - Heat Pumps & Gas Furnaces
- 🎥 Video Class 27 – Heat Pump Operation: Winter and Summer Modes
- 🎥 Video Class 28 – Defrost Control Boards and Reversing Valve
- 🎥 Video Class 29 – Diagnosing Auxiliary Heat and Sensors
- 🎥 Video Class 30 – Combustion, Inducers, and Flame Sensors
- 🎥 Video Class 31 – Furnace Ignition Sequences
- 🎥 Video Class 32 – Pressure Switches, Rollout Switches, and Safety
🔍Module 8: Brazing, Copper, Leak Detection
📗👇 Download Ebook - Brazing, Copper, Leak Detection
- 🎥 Video Class 33 – Cutting, Reaming, and Cleaning Copper
- 🎥 Video Class 34 – Lighting the Torch and Flame Adjustment
- 🎥 Video Class 35 – Full Brazing Procedure: Step-by-Step
- 🎥 Video Class 36 – Leak Detection: UV, Electronic, Nitrogen
🧰Module 9: Installation – Indoor & Outdoor Units
📗👇 Download Ebook - Installation – Indoor & Outdoor Units
- 🎥 Video Class 37 – Mounting Air Handlers and Condensers
- 🎥 Video Class 38 – Copper Line Set Routing and Insulation
- 🎥 Video Class 39 – Pulling Vacuum, Pressure Testing, and First Charge
- 🎥 Video Class 40 – Deep Coil Cleaning & System Reset
🧪 Module 10: Ductwork and Air Distribution
📗👇 Download Ebook - Ductwork and Air Distribution
- 🎥 Video Class 41 – Duct Design and Sizing Basics
- 🎥 Video Class 42 – Flex Duct Rules, Pitfalls, and Support
- 🎥 Video Class 43 – Duct Box and Plenum Transitions
- 🎥 Video Class 44 – Plenum Collar and Sealant Application
- 🎥 Video Class 45 – Register Box and Vent Connections
🌬️ Module 11: Air Quality, Drainage, Filtration
📗👇 Download Ebook - Air Quality, Drainage, Filtration
- 🎥 Video Class 46 – Filters, UV Lights, and IAQ Add-ons
- 🎥 Video Class 47 – Drain Pan, Float Switches, and Overflow Prevention
📄Module 12: EPA 608 and Legal Requirements
📗👇 Download Ebook - EPA 608 and Legal Requirements
- 🎥 Video Class 48 – EPA 608 Overview and Certification Types
- 🎥 Video Class 49 – Recovery Machines and Refrigerant Management
- 🎥 Video Class 50 – Leak Repair Rules and Legal Compliance
- 🎥 Video Class 51 – Prohibited Practices and EPA Fines
- 🎥 Video Class 52 – EPA 608 Test Prep and Common Questions
🧊 Module 13: Advanced HVAC Technologies
📗👇 Download Ebook - Advanced HVAC Technologies
- 🎥 Video Class 53 – High-Efficiency Inverter Systems
- 🎥 Video Class 54 – New Refrigerants (R-32, R-454B, A2L Safety)
- 🎥 Video Class 55 – Mini Split Systems: Installation and Troubleshooting
- 🎥 Video Class 56 – R-290 (Propane) Refrigerant – Safety and Use
- 🎥 Video Class 57 – Tools & Safety for A2L and A3 Refrigerants
🎁 BONUS MODULE: Career & Field Readiness
📗👇 Download Ebook - Career & Field Readiness
- 🎥 Video Class 58 – Resume & Job Interview Tips
- 🎥 Video Class 59 – Starting Your First Jobs: What to Expect
- 🎥 Video Class 60 – Tools You Must Own as a New Technician
🏆 Certification
You'll receive a digital certificate after completing all 60 lessons and final quizzes — perfect to show clients or employers in the United States.
Complete All Lessons
Work through all 60 video classes at your own pace
Receive Digital Certificate
Download your professional certification to showcase your skills
🔥 Air Conditioning Tech is One of the Top Careers in the U.S.
👨🏫 Why AC Tech Pro? Hybrid Learning for Real Results
🧠 AI + Human Teachers
Learn with smart tech and real-world pros
⚙️ Practical Training
Step-by-step lessons with real system walkthroughs
💻 Watch Anytime
Short video lessons + e-books available 24/7
📈 Grow Your Career
From zero to technician, then business owner
Bonus: Marketing & Career Growth for HVAC Technicians
🎓 What You Get
60 Video Classes
13 Downloadable E-Books
Certificate of Completion
Lifetime Access
Have Questions?
Email: ads2@actech.pro
🔥Air Conditioning Earn $100,000+/Year –