If your application includes a cooling coil, you may select dehumidification control. It is important to note that dehumidifying typically requires a reheat coil, but a reheat coil may not be required if the reheat coil is zone based. However, it is difficult for state-based controls to dehumidify. In these applications, cooling has two functions, both of which may be required at any given time. Selecting the dehumidification control option requires choosing to use either the Zone Humidity or Return Air Humidity sensor for control.