1.BASIC OF #HVAC **HVAC** stands for **Heating, Ventilation, and Air Conditioning**, a complex system designed to control the ambient conditions of a living space to ensure comfort throughout the year According to the sources, the system functions as follows: * **Heating (H):** Maintains warmth during cold winter weather ***Ventilation (V):** Ensures air quality by bringing in clean air and controlling humidity levels ***Air Conditioning (AC):** Provides cooling during hot summer periods ###**Ba