Select Incremental Output if the coil is controlled by an incremental valve that uses two binary outputs to incrementally open and close the valve. You may also add a Face and Bypass Damper to allow some air to bypass the coil in certain conditions. When the switchover temperature falls below the face and bypass damper switchover setpoint, the valve opens fully and the face and bypass damper modulates to maintain temperature. When the switchover temperature is above the face and bypass damper switchover setpoint, the damper opens fully to the coil and the valve modulates. The face and bypass damper can be controlled using a Proportional Actuator or an Incremental Actuator.