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CONTROL VALVES
CONTROL OPERATION
Regeneration Modes
Time Clock Delayed Control
A Time Clock Delayed Control regenerates the system on a timed interval. The control 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. The interval time can be
programmed in a 24 hours base (1 day). Example, 24, 48, 72, 96, and so on. Or each 3, 4, 6, 8 or 12
hours if your need is less than 24 hours.
Meter Immediate Control
A meter immediate control measures water usage and regenerates the system as soon as the
calculated system capacity is depleted. The control calculates the system capacity by dividing
the unit capacity (typically expressed in grains/unit volume) by the feed water 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.
Meter 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 control calculates the system capacity by dividing the unit capacity by the feed
water 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.
Control Operation During Regeneration
During regeneration, the control displays a special regeneration display. In this display, the
control shows the current regeneration step number the valve is advancing to, or has reached,
and the time remaining in that step. The step that displays, ashes until the valve completes
driving to this regeneration step position. Once all regeneration steps are complete the valve
returns to service and resumes normal operation.
Control Operation During Programming
The control only enters the Program Mode with the valve in service. While in the Program Mode,
the control continues to operate normally monitoring water usage and keeping all displays up to
date. Control programming is stored in memory permanently, eliminating the need for battery
backup power.
