In an AC system, a device which turns liquid freon into its gaseous form (evaporation), allowing it to absorb heat from the building air and causing excess moisture in the air to condense on the evaporator coils, so it can be removed from the air.
In an AC system, a device which turns liquid freon into its gaseous form (evaporation), allowing it to absorb heat from the building air and causing excess moisture in the air to condense on the evaporator coils, so it can be removed from the air.