Air Conditioning: Central & Mini Splits
From Residential Central AC to Ductless Mini-Split Systems
A comprehensive, field-ready education in residential and light commercial air conditioning systems. Master the theory, installation, service, and troubleshooting of both central split systems and ductless mini-split heat pumps.
Lessons
Quiz Questions
Service Scenarios
Weeks
Built for the Real World
Air conditioning represents the largest segment of residential HVAC service calls. Central split systems dominate existing homes, while ductless mini-splits are the fastest-growing segment in new construction and retrofits. This course prepares you to service both — confidently and profitably.
Central & Mini-Split Systems
Comprehensive coverage of both traditional central split systems and modern ductless mini-split heat pumps — the two dominant AC technologies in today's market.
Psychrometrics & Refrigerants
Understand the science of cooling — thermodynamics, psychrometric charts, and the properties of R-410A, R-32, and next-generation refrigerants.
Installation & Commissioning
Brazing, evacuation, nitrogen purge, vacuum procedures, refrigerant charging, and system startup — the skills that separate installers from professionals.
Advanced Diagnostics
Superheat, subcooling, airflow measurement, electrical fault isolation, and the systematic diagnostic reasoning that solves problems fast.
Inverter Technology
Variable-speed compressors, EEV control, multi-zone configurations, and the communication protocols that make modern mini-splits work.
Certification Aligned
Content maps directly to EPA 608 (Type II & Universal) and NATE AC Installation & Service certification requirements.
5 Modules. 26 Lessons. Zero Fluff.
Every lesson is built around one principle: understanding why a system works is the fastest path to diagnosing why it doesn't.
Establishes the thermodynamic principles that govern every air conditioning system, including psychrometric data interpretation and modern refrigerant properties.
Skills That Pay the Bills
By the end of this course, you'll be able to install, service, and troubleshoot both central split systems and ductless mini-splits. These are the exact skills that employers and service managers are looking for.
/Hour
Average AC Technician Salary
$46K–$88K annually. Techs with mini-split expertise and EPA/NATE certs earn the top range.
Is This Course For You?
New HVACR Students
You've completed basic HVAC fundamentals and want to specialize in the most in-demand residential service — air conditioning.
Working Technicians
You service central AC but want to add mini-split installation and service to your skill set — the fastest-growing segment in HVAC.
Apprentices & Helpers
You're already in the field and want structured training to accelerate your skills and prepare for EPA 608 and NATE AC certification.
Career Changers
You're entering the trades and want a clear, step-by-step path into a high-demand career with year-round work.
Learn From Someone Who's Done the Work
Oneil Fuller
HVACR Educator, Licensed Contractor, Author
Oneil Fuller is a licensed HVACR contractor in Texas and Georgia, EPA 608 Universal Certified, NATE Certified, and the founder of Support HVACR Trade Inc. and Support HVACR LLC. He specializes in commercial refrigeration, heat pumps, and advanced troubleshooting. This course is built from real-world field experience — not textbook theory.
Invest in Your Career
Air Conditioning Course
Lifetime access. No recurring fees. No hidden costs.