Toro Aqua-Clear Guía De Instalación Y De Usuario página 14

5. Main Valve
The standard controller is not equipped for this function; an expansion board can be added
which enables the controller to command a master valve when a backwash cycle is triggered.
Please speak with your Toro dealer if you wish to add this functionality. The standard setting
should be "No" to indicate no main valve function.
6. Dwell Time
The controller backwashes the filters one at a time. The Dwell time is the pause between the
filters in a backwashing cycle. This Dwell Time allows the system to come back to full pressure
for the next backwash. A typical dwell time setting is 30 seconds.
7. DP Delay
This is the delay during which the PD sensor reading is expected to remain stable before the
controller triggers a backwash. This delay prevents the filter from backwashing due to a short
spike in the pressure differential; if the pressure differential exceeds the value of the set point
for the length of time set here, then a backwash will trigger. A typical setting is 10-15 seconds.
8. Looping Limit
Sometimes a fault in the PD sensor, or another problem occurs in the system, and the filter can
enter an 'endless loop' of consecutive backwashing cycles. This could create flooding or
washout conditions where the backwash water exits, and so a limit to the number of consecutive
backwash cycles commanded by the PD sensor is set in this field. If the filter enters into an
'endless loop' of consecutive backwash cycles called for by the PD sensor, when the limit set in
this field is reached, the PD sensor will be ignored, and the filter will be triggered only by the
timer. When the PD sensor returns once again to a reading below its trigger setpoint, the
looping limit will re-set, and the PD sensor will now be available to trigger backwash cycles
again. Typical setting is 5.
9. Alarm
The standard controller is not equipped for this function; an expansion board can be added
which enables the controller to close a switch and trigger an alarm. Please speak with your
Toro dealer if you wish to add this functionality. The standard setting should be "No" to indicate
no alarm function.
10. Delay Valve
The standard controller is not equipped for this function; an expansion board can be added
which enables the controller to command a master valve when a backwash cycle is triggered,
and this setting would manage the delay between actuating the main valve and the backwash
cycle. Please speak with your Toro dealer if you wish to add this functionality. The standard
setting should be "No" to indicate no delay valve function.
11. View Outputs
This function is not used on the standard controller; press ENTER to pass by it.
Aqua-Clear Automatic Backwash (ENG/SPA) pg. 14