Hunter ACC2 - Station-Level Alarms; Flow Zone or Mainsafe Alarms

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Flow Operations
STATIONLEVEL ALARMS
If ow does drop to near zero when the Flow Zone is paused,
the controller then begins running the stations that were
running at the time of the alarm, one by one, to test which
station(s) are causing the high ow conditions. The controller
will mark failed stations in the logs, and continue irrigating
with stations that pass the individual ow tests.
FLOW ZONE OR MAINSAFE™ ALARMS
If ow does not drop substantially during the diagnostic pause
period, the controller determines there is a Mainline Overow,
and will not resume irrigating or perform further diagnostics.
It will remain shut down for the period specied in the Alarm
Clear Delay setting on the Flow Zones screen.
When ow alarms are detected at the Flow Zone or MainSafe
level, they can be cleared from the Flow menu, Clear Flow
Alarms. There also will be a shortcut so key available to Clear
Flow Alarms when these conditions are detected, aer View
Messages has been selected.
If the actual ow exceeds the Maximum Flow allowance
for the Flow Zone, and continues for the time set in the
Alarm Delay, the Flow Zone alarms and shuts down without
further diagnostics. The same applies to MainSafe zones, if
applicable. The controller assumes the overow condition is
the result of a mainline failure, above the station level.
If ow exceeds any Unscheduled Flow allowance when no
stations are supposed to be running, and continues for the
time set in the Alarm Delay, the Flow Zone and/or MainSafe
zone will also be shut down.