What is the HVAC coil?
The heating, ventilation and air conditioning coil (HVAC) is part of the air conditioning and heating system. In fact, there are two HVAC coils in the typical system. In the capacitor of the outer air conditioning, the capacitor coil and the evaporator coil in the inner unit. The coils are what increases or lowers the temperature and pressure of the gas or liquid of the coolant before handover to another part of the HVAC system.
To understand how the coils work, first must understand how the HVAC system works. In the simplest point of view, HVAC draws hot air into the system, cools it and then distributes it throughout the building. In winter, the system pulls cold air, extracts heat and passes that warms the air through the pipeline in the building. HVAC coils play an important role in this process.
The compressor in the outer unit is a pump that pulls a hot, low -pressure refrigerant or cooling gas from the building and converts it to hot compression gas. This warmer gas is forced through the outer coil and cools down when hotThe ear from inside the building blows into the exterior. However, the heat loss from the coolant changes the gas into a liquid form, which is still very hot and under pressure.
The liquid flows into the coil of the evaporator, which is located in the HVAC inner unit. When the liquid enters the HVAc vaporizer coil, it is able to expand and cool. It is cooler than the surrounding air, so it absorbs heat from the pipe that is part of the HVAC system. This leaves colder air in the pipes to be distributed throughout the building. When the cold air is scattered through the pipe system, the cooler, the low -pressure gas recycles back to the outer coil of the HVAC compressor to re -start the cooling cycle.
In winter, the HVAC coil works in the opposite way. The heat pump attracts the air from the outside and leads the air through the vaporizer. The colder air is heated by the evaporator coil and then pumped over the pipe to keep the building warm. Although the air miThe MO building can be cold, the HVAC system is able to pull some heat out of it. In fact, the HVAC coil can pull heat from the air that is deep below freezing.