Regeneration Types - Pentair FLECK 4600-SXT Installer Manual

Installer Manual Fleck 4600 SXT - Installation
5.7.

Regeneration types

Metered immediate control
A meter immediate control measures water usage and regenerates the system as soon as the
calculated system capacity is depleted. The controller calculates the system capacity by dividing the
unit capacity (typically expressed in grains/unit volume) by the feedwater hardness and subtracting
the reserve. Meter Immediate systems generally do not use a reserve volume. A meter immediate
control will also start a regeneration cycle at the programmed regeneration time if a number of days
equal to the regeneration day override pass before water usage depletes the calculated system
capacity.
Metered delayed control
A meter delayed control measures water usage and regenerates the system at the programmed
regeneration time after the calculated system capacity is depleted. As with Meter Immediate systems,
the controller calculates the system capacity by dividing the unit capacity by the feedwater hardness
and subtracting the reserve. The reserve should be set to insure that the system delivers treated
water between the time the system capacity is depleted and the actual regeneration time. A Meter
Delayed control will also start a regeneration cycle at the programmed regeneration time if a number
of days equal to the regeneration day override pass before water usage depletes the calculated
system capacity.
Time clock delayed control
A Time Clock Delayed Control regenerates the system on a timed interval. The controller will initiate
a regeneration cycle at the programmed regeneration time when the number of days since the last
regeneration equals the regeneration day override value.
Day of the week control
This control regenerates the system on a weekly schedule. The schedule is defined in Master
Programming by setting each day to either "OFF" or "ON." The controller will initiate a regeneration
cycle on days that have been set to "on" at the specified regeneration time.
Ref. MKT-IM-028 / A - 03.07.2018 41 / 98