The answer to 'what does evaporator coil do' is that the evaporator coil is a critical component in an HVAC system that helps cool and dehumidify the air in your home. The evaporator coil is located inside the indoor unit of your HVAC system and contains refrigerant that absorbs heat from the warm air blowing over it. This causes the refrigerant to evaporate, creating a cooling effect that is then circulated throughout your home.
As the warm air passes over the cold evaporator coil, the moisture in the air condenses on the coil and drains away, reducing the humidity levels in your home. This dehumidification process helps make the air feel more comfortable and prevents issues like mold and mildew growth.