Free HVAC Systems and Maintenance Course

HVAC Systems and Maintenance

Beginner level 3.75 learning hrs

Start HVAC fundamentals with this free beginner course on heat transfer, comfort, refrigeration, furnaces, airflow, ducts, electrical basics, controls, diagnostics, maintenance, and field safety for trade learners today.

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Skills you will gain

Heat transfer principles

Psychrometric analysis

Refrigeration cycle diagnosis

Combustion & furnace ops

Ductwork & airflow design

HVAC electrical basics

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Key Highlights

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About this course

HVAC Systems and Maintenance gives you a beginner-friendly way to understand the equipment behind heating, cooling, ventilation, and comfort. This free course is useful for trade starters, facility teams, maintenance helpers, and technical learners who want basics before hands-on practice. You begin with HVAC system types, heat transfer, measurement units, psychrometrics, humidity, load calculations, and indoor air quality so comfort starts to feel measurable.

From there, the course follows how systems run and fail. Refrigeration lessons connect compressors, condensers, evaporators, refrigerants, superheat, and subcooling with cycle diagnosis, while heating modules cover furnaces, combustion safety, heat pumps, and carbon monoxide risk. Airflow, duct sizing, static pressure, filtration, zoning, motors, capacitors, relays, wiring diagrams, multimeter checks, thermostats, fault codes, installation, commissioning, maintenance, and jobsite safety prepare you for deeper HVAC training.

Stand out with an industry-recognized certificate

Start learning

10,000+ certificates claimed, get yours today!

Get noticed by top recruiters

Share on professional channels

Globally recognised

Land your dream job

Course outline

Understanding HVAC: Systems, Scope, and Core Thermodynamics

In this module, you'll learn HVAC system types, heat transfer modes, key measurement units, and US codes like ACCA and ASHRAE.

Psychrometrics and the Science of Comfort

In this module, you'll learn psychrometric charts, humidity's effect on comfort, load calculations, and indoor air quality basics.

The Refrigeration Cycle: How Air Conditioning Really Works

In this module, you'll learn compressor, condenser, and evaporator function, refrigerant types, superheat/subcooling, and diagnosing cycle issues.

Heating Systems: Combustion, Components, and Operation

In this module, you'll learn gas and oil furnace operation, combustion safety, heat pump heating mode, and carbon monoxide safety.

Designing for Airflow: Ductwork and Ventilation Essentials

In this module, you'll learn duct materials and sizing, static pressure, airflow balancing, filtration, and zoning system design.

Electrical Basics Every HVAC Technician Must Know

In this module, you'll learn voltage and Ohm's Law, motors, capacitors and relays, wiring diagrams, and multimeter diagnostics.

Diagnosing HVAC Systems: Controls and Structured Troubleshooting

In this module, you'll learn thermostat types, sequences of operation, structured troubleshooting logic, and interpreting fault codes.

From Install to Upkeep: Field Practices and Safety Standards

In this module, you'll learn installation best practices, system commissioning, preventive maintenance schedules, and jobsite safety standards.

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HVAC Systems and Maintenance

3.75 Hours

Beginner

Get free course content

Master in-demand skills & tools

Test your skills with quizzes

Trusted by 10 Million+ Learners globally

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Frequently Asked Questions

Will I receive a certificate upon completing this free course?

Yes, upon successful completion of the course and payment of the certificate fee, you will receive a completion certificate that you can add to your resume.

Is this course free?

Yes, you may enroll in the course and access the course content for free. However, if you wish to obtain a certificate upon completion, a non-refundable fee is applicable.

What will I learn in this free HVAC course?

You learn HVAC system types, heat transfer, psychrometrics, refrigeration cycles, heating systems, airflow, ductwork, electrical basics, controls, troubleshooting, maintenance, and safety.

What will I learn in this free HVAC course?

You learn HVAC system types, heat transfer, psychrometrics, refrigeration cycles, heating systems, airflow, ductwork, electrical basics, controls, troubleshooting, maintenance, and safety.

Is HVAC Systems and Maintenance suitable for beginners?

The course assumes no prior HVAC training and begins with system purpose, comfort science, thermodynamics, and measurement basics before moving into components, controls, and diagnostics.

How does this HVAC fundamentals course explain comfort?

Comfort lessons connect heat transfer, humidity, psychrometric charts, load calculations, ventilation, and indoor air quality so you can understand why spaces feel hot, cold, or damp.

Will I learn how air conditioning systems work?

Refrigeration lessons explain compressors, condensers, evaporators, refrigerants, superheat, subcooling, and common cycle symptoms used when diagnosing cooling system issues in the field.

Will I learn how air conditioning systems work?

Refrigeration lessons explain compressors, condensers, evaporators, refrigerants, superheat, subcooling, and common cycle symptoms used when diagnosing cooling system issues in the field.

Does the course cover furnaces and heating systems?

Heating modules cover gas and oil furnace operation, combustion safety, heat pump heating mode, carbon monoxide risks, and components used in common residential heating systems safely.

Does the course cover furnaces and heating systems?

Heating modules cover gas and oil furnace operation, combustion safety, heat pump heating mode, carbon monoxide risks, and components used in common residential heating systems safely.

What airflow and ductwork topics are included?

Airflow learning includes duct materials, sizing, static pressure, balancing, filtration, ventilation, and zoning choices that affect comfort, efficiency, and system performance over time.

What airflow and ductwork topics are included?

Airflow learning includes duct materials, sizing, static pressure, balancing, filtration, ventilation, and zoning choices that affect comfort, efficiency, and system performance over time.

Will I learn HVAC electrical basics?

Electrical lessons introduce voltage, Ohm's Law, motors, capacitors, relays, wiring diagrams, and multimeter diagnostics used by technicians during service calls and repair work safely.

Will I learn HVAC electrical basics?

Electrical lessons introduce voltage, Ohm's Law, motors, capacitors, relays, wiring diagrams, and multimeter diagnostics used by technicians during service calls and repair work safely.

How does this course teach HVAC troubleshooting?

Troubleshooting topics connect thermostats, sequences of operation, controls, fault codes, structured diagnosis, and symptom checks so problems are approached in order during service.

How does this course teach HVAC troubleshooting?

Troubleshooting topics connect thermostats, sequences of operation, controls, fault codes, structured diagnosis, and symptom checks so problems are approached in order during service.

Does the course include installation and maintenance practices?

Field-practice lessons cover installation basics, commissioning checks, preventive maintenance schedules, documentation habits, and jobsite safety standards for HVAC work and upkeep.

Who should take HVAC systems training online?

Trade beginners, facility staff, maintenance workers, technical students, career switchers, and homeowners can use it to understand systems before deeper lab or field training safely.