An AC evaporator coil is a crucial component that helps to cool your home or office. The evaporator coil absorbs heat from the air in your house and is located inside your air handler or attached to your furnace.As warm air is circulated through the ac coil by a blower fan, the refrigerant inside the coil absorbs the heat, causing it to vaporize. https://www.partshnc.com/air-conditioner-parts/evaporator-coil