15
Programming Day of the Week Regeneration/
Backwash
Enter Day of the Week Regeneration/backwash
programming by depressing the
LEFT ARROW
(
←
)
button and the
DOWN ARROW
(
↓
) button
simultaneously for 3 seconds. The days are shown as
d1, d2, d3, etc., on the display. Select the days of the
week regeneration/backwash should occur. To activate
that day, change the 0 to a 1. The programming mode
will be exited if no keys are pressed for 30 seconds. If
this feature is used in conjunction with calendar
override the calender override timer will be reset at the
end of this regeneration/backwash.
Reserve Options
There are two types of reserve options for this control:
fixed reserve and smart reserve (historical water usage
pattern). They are selected with Parameter P15.
Fixed Reserve
When fixed reserve is selected, the control multiplies
the maximum system capacity by the percent value set
in Parameter P16 and uses the result as a reserve.
Smart Reserve (water usage pattern)
The other reserve option allows the control to adjust the
reserve based upon the historical water usage pattern
of the system. The control keeps track of the water
usage for each day of the week and uses that day’s
average usage multiplied by 1.2 as the reserve for that
day. Every day at the Time of Regeneration, the control
recalculates the day’s average water usage. If less than
10% of a day’s average water usage is used, the
control will not change the day’s average. If more than
twice the day’s average is used, the control uses the
actual usage in the reserve calculation.
Since a new installation has no history of water usage,
the control multiplies the percent of capacity value set
in Parameter P16 by the total system capacity to
determine starting average for each day of the week.
The factory set value for P16 is 30 which means that
30% of the total system capacity is used for the starting
average for each day.
Program Parameter P15 is also used to select whether
the control waits until the Time of Regeneration set in
Parameter P2 to start a regeneration, or if the control
should begin a regeneration immediately when the
capacity remaining is less than the reserve.
Table 2.3 - Day of Week Regeneration/Backwash
#
Description of Parameter
Set as required
0 = No - 1 = yes
Notes
d1
Sunday
As required
0 = no day of week regeneration 1 = backwash this day
d2
Monday
As required
0 = no day of week regeneration 1 = backwash this day
d3
Tuesday
As required
0 = no day of week regeneration 1 = backwash this day
d4
Wednesday
As required
0 = no day of week regeneration 1 = backwash this day
d5
Thursday
As required
0 = no day of week regeneration 1 = backwash this day
d6
Friday
As required
0 = no day of week regeneration 1 = backwash this day
d7
Saturday
As required
0 = no day of week regeneration 1 = backwash this day
Reynolds Water Conditioning Co.
24545Hathaway
Farmington Hills, MI 48335
800-572-9575
