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Performa Series Ultra Electronic Demand System
The two key components of the Performa Ultra
electronic demand system are the microprocessor, a
miniature computer located on the circuit board, and a
water meter located at the valve outlet. The flow of
conditioned water through the meter generates
electrical impulses that tell the computer the amount of
water being used.
Every evening, at 2:00 a.m., the past 7 days’ water
usage is statistically averaged to anticipate the amount
of water that will be used the next day. The computer
then determines if the water conditioner has enough
remaining capacity to supply the next day’s needs. If
not, the unit will regenerate.
If the water usage pattern changes, the computer
automatically compensates for the change and
regenerates only when needed. This results in higher
operating efficiency and lower salt usage than a
conventional conditioner operating on a fixed
regeneration schedule.
Special Features
Memory Retention
During a power outage, critical operating information in
the control’s memory is stored into the NOVRAM. This
data includes the time of day, water usage amounts,
and the number of days since the last regeneration. The
NOVRAM will retain the data in its memory. When
power is restored, the information is returned to the
microprocessor and operation resumes as if an outage
never occurred.
The time of day will be late by the length of the power
outage. Most power outages are less than one minute
in duration. Therefore, it may be months or years before
the time display would require resetting. If an outage of
one or more hours occurs, the time of day should be
reset...no other reprogramming is necessary.
The microprocessor calculates how much soft water
was used and adjusts the reserve capacity accordingly
at the end of each day. As a result, the reserve is kept
at a minimum for optimum economy.
Proportional Salting
The amount of salt used for each regeneration is
proportional to the amount of capacity used in the
previous service run. Since countercurrent
regeneration is utilized, brine passing through the lower
portion of the partially exhausted resin bed will not be
exchanged. The brine is utilized to regenerate only
the exhausted portion of the resin bed.
Self Adjusting Reserve
“Reserve”refers to the amount of soft water that may
be needed for the next 24 hours. The microprocessor
calculates how much soft water was used and adjusts
the reserve capacity accordingly at the end of each day.
As a result, the reserve is kept at a minimum for
optimum economy. The reserve amount is calculated
by multiplying the average past seven days’usage by
1.20. Regeneration decisions are based on the
calculated reserve.
In the event of unusually high water usage (twice or
more than the current daily average), the high usage
amount will be used as the reserve when the computer
performs its regeneration computation at 2:00 a.m.
This is done in anticipation of a second day of very high
usage.
Low or No Water Usage
The Performa Ultra is programmed to recognize a day
of very little or no water usage as an abnormality. It will
not use data from such a day to compute the average
usage. For example, if the family is on vacation for a
week, the prior average will be maintained. When
household activity resumes, the conditioner will
operate as if the vacation had not occurred.
Design Reliability
Solid-state electronics assure many years of trouble-
free performance. The metering system has only one
moving part... the rotating turbine that measures water
usage.
Control Features (Reference Figure 4)
Time Display
The correct time will continually appear in the time
display during normal conditioning operation.To
change the hour display, press the TIME SET BUTTON
until the present hour appears. The PM light will be on
when the time is between 12 noon and midnight. The
light is off during the a.m. hours.
Flow Indicator
The water flow indicator flashes whenever service
water is flowing through the valve. This allows an easy
determination of proper meter operation.
Hardness and Capacity Settings
Once the hardness and capacity settings have been
set, the information cannot be lost due to a power
outage and no reprogramming is necessary.