The ZEN can be used to operate circulation fans only at night (19:00 to 6:00) during winter (November 15 to March 30). During operating times, the fans operate intermittently, 60 minutes ON and 30 minutes OFF. The fans start up 30-s apart to keep the startup current down. The start and stop days during winter (November 15 to March 30) are set using the calendar timer (*0). Start and stop times during the night (19:00 to 6:00) are set using the weekly timer (@0). The staggered startup time and run/stop cycles are set using timers (T0 to T2). ■System Configuration ■Program Example ■Parameter Settings http://allfreehere.ucoz.com http://booksandsofts.googlepages.com . using the calendar timer (*0). Start and stop times during the night (19:00 to 6:00) are set using the weekly timer (@0). The staggered startup time and run/stop. intermittently, 60 minutes ON and 30 minutes OFF. The fans start up 30-s apart to keep the startup current down. The start and stop days during winter (November