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AND CONNECTIONS
Use either a CAT3 or CAT5 Network/Communication cable.
Connect the network/communication cable first before
programming.
The maximum cable length between timers is 100 feet.
Connect each unit together from one communication port to the
next communication port. It does not matter which one goes to
the next one.
Ground
Regen
Lock
Figure 2 Current NXT Circuit Board
MASTER PROGRAMMING MODE FLOW
Communication Ports
CHART
Before entering Master Programming, please
CAUTION
contact your local professional water dealer.
NOTE: Depending on current option settings, some
displays cannot be viewed or set.
Entering Master Programming Mode
1. Press and hold the Shift and Up buttons for 5 seconds.
Press the Extra Cycle button once per display until all
displays are viewed and Normal Display is resumed. Option
setting displays may be changed as required by pressing
either Up or Down button. Use the Shift button to move one
space to the left.
2. Depending on current valve programming, certain displays
may not be viewed or set.
NOTE: If the "D" button is pressed while in master
programming, no changes will be saved.
Exiting Master Programming Mode
1. Press the Extra Cycle button once per display until all
are viewed. Master Programming Mode is exited and the
normal display screen appears.
2. To exit the Master Programming Mode without saving
changes, press the Diagnostic button.
NOTE: If no keypad activity is made for 5 minutes while
in the Master Programming Mode, or if there is a
power failure, no changes will be saved, and the
unit will go back to the main display screen.
Resets
Soft Reset: Press and hold the Up and Down buttons for 25
seconds until 12:00PM (or 12:00HR) appears. This resets all
parameters except for the flow meter totalizer volume.
Master Reset: Hold the Extra Cycle button while powering up
the unit. This resets all of the parameters in the unit. Check
and verify the choices selected in Master Programming Mode.
NOTE: If the "D" button is pressed while in master
programming, no changes will be saved.
SELECT LANGUAGE:
ENGLISH
Options: English
Espanol
Portugues
Deutsch
Francais
SYSTEM TYPE:
4
SINGLE UNIT
Options: System 4 (single unit)
System 5 (2-4 units) Parallel Interlock
System 6 (2-4 units) Parallel Series Regeneration
System 7 (2 units) Alternating
System 9 (2-4 units) Alternating
System 14 (2-4 units) Demand Recall
VALVE ADDRESS:
#2
Options: Valve Address #1 (First Control Valve)
Valve Address #2 (Second Control Valve) (Default)
Valve Address #3 (Third Control Valve)
Valve Address #4 (Fourth Control Valve)
NOTE: This screen will not display for System Type 4.
SYSTEM SIZE:
2 VALVES
Options: 2 Valves in the System (Default)
3 Valves in the System
4 Valves in the System
Range: 2 to 4 Valves in the System
NOTE: This screen will not display for System Type 4.
Example:
English
Example:
System Type 4, Single Unit
Example:
Valve Address #2 (Second Control Valve) (Default)
Example:
2 Valves in the System (Default)
3200 NXT
FE12 • 7
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