Cold Rooms Indoor Evaporator Unit

The main job of the evaporator coil is to cool the refrigerant so that it can absorb the heat. As the fan blows air over the coil, the refrigerant becomes cold and turns into a vaporous state.What Is an Evaporator Coil? An air conditioner's evaporator coil, also called the evaporator core, is the part of the system where the refrigerant absorbs heat. It's where the cold air comes from. The evaporator coil is inside or near the air handler where the blower fan is.