An HVAC (heating, ventilation and air conditioning) system is an air conditioning and ventilation system. As an air conditioning system, it acts as heating in winter and as cooling in summer. Its purpose is to provide the user with an indoor environment whose temperature, relative humidity and air purification are comfortable.
How does it work?
The system contains a gas that, when compressed, increases its temperature due to pressure. Once hot, it runs through a conduit where it dissipates its heat. Afterwards, it cools little by little until it turns into a low-temperature liquid. This liquid travels through an expansion valve and evaporates, turning into a cold, low-pressure gas. Then it runs through a conduit absorbing the interior or exterior heat from the environment. Afterwards, it is expelled through some vents