Module 2: HVAC Fundamentals

Course Content

Basic Heat Transfer
What Is Heat?
5 Topics
1 Quiz
Understanding Heat
Heat vs. Temperature
Measuring Heat
Heat Always Moves
Why HVAC Technicians Study Heat
Section 1 – Knowledge Check
Conduction
5 Topics
1 Quiz
What Is Conduction?
Conduction in HVAC Systems
Thermal Conductivity
Preventing Heat Loss
Practical Applications
Knowledge Check
Convection
5 Topics
1 Quiz
What Is Convection?
Convection in HVAC Systems
Natural vs. Forced Convection
Air Circulation
Technician Responsibilities
Knowledge Check
Radiation
5 Topics
1 Quiz
What Is Radiation?
Everyday Examples
Radiation and Buildings
HVAC Applications
Reducing Radiant Heat
Knowledge Check
Sensible vs. Latent Heat
5 Topics
1 Quiz
Sensible Heat
Latent Heat
HVAC Applications
Indoor Comfort
Why Technicians Need to Understand Both
Knowledge Check
Temperature, Pressure & Matter
Temperature Scales
5 Topics
1 Quiz
What Is Temperature?
The Fahrenheit Scale
The Celsius Scale
Measuring Temperature in HVAC Systems
Why Temperature Matters
Knowledge Check
States of Matter
5 Topics
1 Quiz
What Is Matter?
Solids
Liquids
Gases (Vapors)
Changes Between States of Matter
Section 2 – States of Matter Knowledge Check
Pressure Relationships
5 Topics
1 Quiz
What Is Pressure?
High Pressure vs. Low Pressure
Measuring Pressure
Pressure and Temperature Work Together
Why Pressure Matters in HVAC
Section 3 – Pressure Relationships Knowledge Check
Saturation
5 Topics
1 Quiz
What Is Saturation?
Saturation Temperature
Saturated Liquid and Saturated Vapor
Pressure and Saturation Are Connected
Why Saturation Matters in HVAC
Section 4 – Saturation Knowledge Check
Boiling and Condensation
5 Topics
1 Quiz
What Is Boiling?
What Is Condensation?
Boiling and Condensation in HVAC Systems
Heat Absorption and Heat Rejection
Why Boiling and Condensation Matter
Section 5 – Boiling and Condensation Knowledge Check
The Refrigeration Cycle
Evaporator
5 Topics
1 Quiz
What Is an Evaporator?
How the Evaporator Absorbs Heat
Refrigerant Inside the Evaporator
Airflow Across the Evaporator Coil
Why the Evaporator Is Important
Section 1 – Evaporator Knowledge Check
Compressor
5 Topics
1 Quiz
What Is a Compressor?
How the Compressor Works
Types of Compressors
Why the Compressor Is Important
Common Compressor Problems
Section 2 – Compressor Knowledge Check
Condenser
5 Topics
1 Quiz
What Is a Condenser?
How the Condenser Rejects Heat
Refrigerant Inside the Condenser
Importance of Airflow Across the Condenser
Why the Condenser Is Important
Section 3 – Condenser Knowledge Check
Metering Device
5 Topics
1 Quiz
What Is a Metering Device?
How the Metering Device Works
Common Types of Metering Devices
Why Refrigerant Flow Must Be Controlled
Common Metering Device Problems
Section 4 – Metering Device Knowledge Check
Refrigerant Flow
5 Topics
1 Quiz
What Is Refrigerant Flow?
Refrigerant Leaves the Evaporator and Enters the Compressor
Refrigerant Flows Through the Condenser
Refrigerant Passes Through the Metering Device
The Cycle Repeats Continuously
Section 5 – Refrigerant Flow Knowledge Check
Final Quiz
Module 2 Final Examination