The answer to 'how does evaporator coil work' is that the evaporator coil is a critical component of your HVAC system that helps absorb heat from the air inside your home. As refrigerant passes through the coil, it evaporates and absorbs heat, cooling the air that blows over the coil and into your living spaces. The evaporator coil works in tandem with the condenser coil to circulate refrigerant and transfer heat, creating the cooling effect you feel from your air conditioning.
The evaporator coil is typically located inside the air handler unit or furnace. It's made up of a series of thin metal tubes or fins that provide a large surface area for the refrigerant to absorb heat. As warm indoor air blows across the coil, the refrigerant inside the coil evaporates, transferring the heat from the air to the refrigerant. This cooled air is then circulated back into your home, providing the cooling sensation.