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System 4 - Single Unit
Single Tank configuration Time Clock: No Meter Immediate: One
Meter Delayed: One Meter Remote Signal Start
System 5 (2-8 Units) Parallel Interlock)
All tanks in parallel supplying treated water. Each unit in the
system will have its own flow meter/sensor input. The control
will delay the start of Regeneration if another unit is already
in Regeneration. Once that unit has completed a Regeneration
cycle, and has returned to Service, the unit with the longest
regeneration queue time will begin Regeneration. No more
than one unit will be in Regeneration at at time.
System 6 (2-8 Units) Parallel Series Regeneration
All tanks in parallel supplying treated water. Only #1 control
will monitor flow meter/sensor input. When a regeneration is
required for the system, it will regenerate valve address #1
first, immediately followed by #2, then #3, then #4 if installed.
No more than one unit will be in Regeneration at a time.
System 7 (2 Units) Alternating Immediate
One tank online supplying treated water, one tank in Standby.
Only #1 control will monitor its flow meter/sensor input.
Regeneration of a unit will begin after the other control has left
Standby and returned to Service. When the Regeneration cycle
is complete, the regenerated unit will enter Standby. Standby
on each tank is controlled by the relay on the NXT2 circuit
board.
System 8 (2 Units) Alternating Delayed
Immediate Transfer Delayed Regeneration One tank online
supplying treated water, one tank in Standby. Only #1 control
will monitor its flow meter/sensor input. Online unit depletes
its volume. Once this occurs the offline unit comes online. The
previously online unit goes offline and delays its regeneration
until the programmed regeneration time has been reached.
System 9 (2-8 Units) Alternating with Standby
Units
Up to 7 tanks online supplying treated water, one tank
in Standby. Meter/sensor input is required on each tank.
Regeneration of a unit will begin after the other control has left
Standby and returned to Service. When the Regeneration cycle
is complete, the regenerated unit will enter Standby. Standby
on each tank is controlled by the relay on the NXT2 circuit
board.
8 • Pentair Fleck NXT2 Timer
System 14 (2-8 Units) Demand Recall
Meter input is required on each tank. Unit #1 will begin In
Service with #2, #3, and #4 (if installed) will begin in Standby.
At least one unit is In Service at all times. When flow rate to the
Primary Service Unit increases to a user specified rate, the
next unit in sequence will move from Standby to Service. As
the flow rate falls below the user specified rate, subsequent
tanks will return to Standby. When the Primary Service Unit
regenerates, the next unit in sequence will become the new
Primary Service Unit. As each units capacity is reached, the
controller will initiate a Regeneration of that unit. Depending
on the number of units in the system and flow rate demand,
the regenerated unit will then be placed either into Standby or
Service. Only one unit will be in Regeneration at a time.
MASTER PROGRAMMING MODE
FLOW CHART
Before entering Master Programming, please
CAUTION
contact your local professional water dealer.
NOTE: Depending on current option settings, some values
cannot be viewed or set.
Master Programming Mode
1. Press and hold the Left and Down buttons simultaneously
for 3 seconds to enter Master Programming mode.
2. To navigate, press the Extra Cycle button to advance to the
next value. Press the Left button to retreat to the previous
value.
3. Where applicable, use the Down and Up buttons to adjust
a value as desired. When entering data into text fields
(such as Assistance Name) or numerical fields (such as
Hardness), press the Extra Cycle button to advance to the
next character/digit and press the Left button to retreat to
the previous character/digit. Proceed through all available
characters/digits to advance to the next value.
4. To reset/clear a value (such as Assistance Name), while
on the value, press and hold the Down and Up buttons
simultaneously for 5 seconds.
5. To exit Master Programming Mode, progress through all
available values or after 5 minutes of inactivity the timer
will exit automatically. To exit master programming without
saving changes, press the Left button until you return to
the service screen.
6. Depending on the current controller programming, certain
values may not be able to be viewed or set.
7. The timer will display local information, not system
information.
8. In the event of a regeneration occurring while displaying
master programming, the regeneration step and time
remaining will be displayed. When regeneration has been
completed, the display will return to the main screen.
SETTINGS REVIEW
Example:
ON
OFF
On: View settings without the ability to alter settings.
Off: User has ability to alter settings.
LANGUAGE
Example:
PORTUGUES
ENGLISH
English, Francais, Duetsch, Italiano,
FRANCAIS
Espanol, Nederlandse, Portugues
ASSISTANCE NAME 1
Example:
12 characters maximum.
ASSISTANCE NAME 2
Example:
12 characters maximum.
ASSISTANCE PHONE
Example:
14 characters maximum.
SYSTEM
Example:
SYSTEM 4
4, 5, 6, 7, 8, 9, 14
SYSTEM 5
SYSTEM 6
NUMBER OF TANKS
Example:
3
2
2, 3, 4, 5, 6, 7, 8
8
TRIP POINT #1 - GPM
Example:
0001
Trip Points only available/visible when
System Type 14 is selected.
TRIP POINT #1 - SERVICE DURATION
Example:
1 S
Range: 1-90 seconds
TRIP POINT #1 - STANDBY DURATION
Example:
60 S
Range: 60-300 seconds
VALVE
Example:
2815
2850
2510, 2750, 2815, 2900, 3150, 3900
2900
REGEN. FLOW
Example:
UPFLOW
DOWNFLOW
Upflow
FILTER
Downflow
Filter
REGEN. TYPE
Example:
SOFTENER METER DEL
SOFTENER METER IMM
Softener Meter Delayed
TIME CLOCK
Softener Meter Immediate
Time Clock
Day of the Week.
UNITS
Example:
METRIC
US
Metric
US
CAPACITY - GRAINS
Example:
0023828
Range: 0-9,999,999 grains
HARDNESS - GPG
Example:
025
Range: 0-199 GPG
RESERVE
Example:
FIXED VOLUME
Fixed Volume
WEEKLY RESERVE
VARIABLE RESERVE
Weekly Reserve
Variable Reserve
Fixed %
REMOTE REGENERATION
Example:
DELAYED
OFF
Off, Immediate, Delayed
IMMEDIATE
Example:
REMOTE SIGNAL DURATION
Range:
1 S
1-9999 seconds
DAY OVERRIDE/TIME-DRIVEN
Example:
10 D
Range: Off - 99 Days
Example:
REGEN. TIME
Range: 0 - 23 Hours 59 Minutes.
02:OOHR
Pentair Fleck NXT2 Timer • 9
LOCK WINDOW #1
Example:
ON
Start Lock Window
OFF
End Lock Window
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