Heating, ventilation, and air conditioning (HVAC) systems are essential for providing comfortable temperatures and air quality in commercial and residential properties. But how do these systems actually work? In this comprehensive guide, we'll explain the step-by-step process of how HVAC systems operate, from the thermostat to the compressor. The warm air inside the house enters through a ventilation duct and passes through the cold evaporator coil. The thermostat is the end point of user control of the system and transmits instructions throughout the system.
Depending on the complexity of the system and how much you need to communicate with several devices, several electrical inputs may be needed in a thermostat. In the diagram above, the compressor compresses the refrigerant vapor and moves it to the condenser. The heat of compression increases the temperature of the refrigerant vapor, making it a superheated vapor at high pressure. As this refrigerant enters the condenser, it rejects heat from the refrigerant, causing it to change state and condense into a liquid at high pressure and high temperature.
It is important to understand the different types of HVAC systems when considering your options as this will help you better understand how heating, ventilation and air conditioning work. An HVAC system is composed of equipment, technology, and processes used to heat, cool, and ventilate a commercial or residential property. By reading this guide, you will have a solid understanding of HVAC equipment and processes so that your conversations with your HVAC contractor will be more productive. With this guide, you'll have a better understanding of how HVAC systems work and be able to make more informed decisions when it comes to your home or business's heating, ventilation, and air conditioning needs.