What are the key components of a typical centralized allair

What are the key components of a typical centralized all-air HVAC system? Write the component name and their corresponding function/role.

Solution

Evaporator. The evaporator is located on the cold side of the air conditioner and is paired with a fan that blows air over the chilled coils and into the home. The evaporator receives the liquid refrigerant and converts it to gas through a drop in pressure. Condenser. The condenser works the opposite of the evaporator and converts the evaporated refrigerant back into a liquid through a process known as “heat transfer”—the principle that heat will always move from a warmer to a cooler substance. In most central A/C units, condenser coils are housed in the outside unit and look like a radiator in a car engine. Expansion valve. In between the evaporator and condenser coils is the expansion valve, which is responsible for removing pressure from the liquid refrigerant to allow the conversion into gas that occurs in the evaporator. Compressor. Last but not least, the purpose of the compressor is to re-pressurize the refrigerant gas in order to turn it back into liquid. So the compressor assists the condenser, while the expansion valve assists the evaporator