Pool Systems Automation: Difference between revisions

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==== Auto Fill ====
==== Auto Fill ====


If enabled, the pool is automatically filled when a low threshold is met via the surge tank water level sensor.
If proper conditions are met, the pool is automatically filled when a low threshold is met via the surge tank water level sensor.
 
Auto fill is enabled by default.  This is indicated by a periodic <tt>AutoFill Enabled</tt> LCD notification.  It may start during any state other than <b>Backwash</b> and the waiting to restart states following a "Critical Level Low (LL)" result.  When in the one of those states, auto fill is paused and <tt>AutoFill Paused</tt> is periodically shown on the LCD.
 
When auto fill is enabled, the "Level Low (L)" and "Level High (H)" results of the surge tank level are not fault/warning conditions; they becomes strictly thresholds at which auto fill starts/stops. 
 
Auto fill operates until the high level is met or auto fill is disabled.  Auto fill operates for at least 2 minutes.  If the high level threshold is not met after 4 hours, a timeout occurs.  A timeout prevents auto fill for 12 hours in an effort to prevent over-filling the pool in the event of a sensor failure.  This is indicated by a periodic <tt>Fill: TO (12 hr)</tt> LCD notification.  If the high threshold is met within the 4 hour period, a minimum off time (MOT) prevents auto fill for 4 hours to prevent frequent cycling.  This is indicated by a periodic <tt>Fill: MOT (4 hr)</tt> LCD notification.  In theory, 3-5 cycles of auto fill may complete in a day, though thresholds should be set to keep this to 2 or less.


=== User Interfaces ===
=== User Interfaces ===

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