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The control valve with a water meter can be set for Demand Initiated Regeneration (DIR) only, Time Clock
operation only or DIR and Time Clock whichever comes first, depending upon what settings are selected for Day
Override and Gallon Capacity.2 See Table 8.
If a control valve does not contain a meter, the valve can only act as a time clock, and day override should be set to
any number and gallon capacity should be set to off.
For DIR Softeners, there are two options for setting the Gallons Capacity. The Gallons Capacity is automatically
calculated if set to AUTO. Reserve Capacity is automatically estimated based on water usage if AUTO is used. The
other option is to set the Gallons Capacity to a specific number. If a specific number is set, reserve capacity is zero,
unless the value is manually set (i.e. the manufacturer intentionally sets the gallon capacity number below the
calculated capacity of the system).
The control valve can also be set to regenerate immediately or at the next regeneration time by changing the
Regeneration Time Option. There are three choices for settings:
1. "NORMAL" means regeneration will occur at the preset regeneration time.
2. "on 0" means regeneration will occur when the gallons capacity reaches zero.
3. "NORMAL" and "on 0" means the regeneration will occur at the preset regeneration time unless the gallons
capacity reaches zero. If the gallons capacity reaches zero the regeneration will begin 10 minutes after no water
usage.
The user can initiate manual regeneration. The user has the option to request the manual regeneration at the
delayed regeneration time or to have the regeneration occur immediately:
1. Pressing and releasing the REGEN button. "Regen Today" will flash on the display and the regeneration will
occur at the delayed regeneration time. The user can cancel the request by pressing and releasing the REGEN
button. This method of manually initiating regeneration is not allowed when the system is set to "on 0," i.e.
immediately regenerate when the gallon capacity reaches zero.
2. Pressing and holding the REGEN button for approximately 3 seconds will immediately start the regeneration. The
user cannot cancel this request, except by resetting the control by pressing NEXT and REGEN buttons
simultaneously for 3 seconds.
A unique feature of this control valve is the ability to display actual water usage for the last 63 days. The values are
initially stored as "----". This means the value is unknown. As days pass values are stored as "0" for no flow or the
actual number of gallons. The counting of the gallons starts at the regeneration time. If no regeneration time can be
set (i.e. when the valve is set for immediate regeneration) the counting of gallons starts at 12 a.m. Day 1 is
yesterday, day 2 the day before yesterday, etc. As new values are added the oldest history disappears.
Another unique feature is that the valve automatically calculates a reserve capacity when set up as a softener with
"Gallons Capacity" set to "AUTO" and the "Regeneration Time Option" set to "Normal" or "Normal + on 0". The
actual reserve capacity is compared to the gallons capacity remaining immediately prior to the preset regeneration
time. A regeneration will occur if the actual reserve capacity is less than the gallons capacity remaining. The actual
reserve capacity is calculated by using the estimated reserve capacity and adjusting it up or down for actual usage.
The estimated reserve capacity for a given day of the week is the maximum value stored for the last three non-trivial
water usages (i.e. more than 20 gallons/day) in seven day intervals.
² See Installer Display Settings Step 3I, OEM System Setup Step 7S for explanations of Day Override and Gallon
Capacity.
³ Day Override and Gallon Capacity cannot both be set to "oFF" at the same time.
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