Starting with Firmware Version 2.0.5 the timers in the Smart Recirculation Control will automatically disable themselves if a hot water draw is not detected within the last 24 hours. As soon as a hot water draw is detected or the controller is connected to with the smart phone app the timers will automatically be re-enabled.
This does not impact the ability to manually disable the timers from the settings menu in the smart phone app. This is intended simply as a fail safe if you do go on vacation and forget to manually disable the timers, not to worry, they will automatically disable themselves!
Leridian Dynamics, always looking for ways to save you worry :-)