TIMER DISPLAY FEATURES
continued
Valve State
INI (Initializing) -
INI will display on the screen for 30 to
45 seconds when initializing after a power failure reset or
programming.
RGQ (Regeneration Queued) -
RGQ indicates that the reserve
has been entered in a delayed system and regeneration has
been queued. When in the main screen, press the Extra Cycle
button to toggle service (SRV) with RGQ.
SRV (Service) -
SRV will display when the unit is In Service.
LCK (Lock) -
Lock will be displayed when the terminal/remote
input block P4 on the circuit board is switched to "lock". See
the “Network/Communication Cables & Connections” section
of this manual.
LED Status Lights
Blue LED -
Illuminates while the unit is In Service and no
errors exist. The unit will always be In Service unless a
regeneration trigger has occurred (green LED light will be
displayed). A blinking blue light indicates the timer is In
Service, and queued for regeneration.
Green LED -
Illuminates when the unit is in Regeneration
mode, unless an error condition exists. A blinking green light
indicates the timer is in Standby, and not in Regeneration.
Red LED-
Illuminates when there is an error.
Flow Indicator
A rotating line (appearing as a rotating star shape) will display
on the screen when flow is going through the meter.
TIMER DISPLAY - SCREEN EXAMPLES
1. In Service: System 4 Time Clock
4# SRV 03:45PM
REGEN IN 07 DAYS
2. In Service: System 4 Flow Meter Initiated or System 4 Flow
Meter Delayed
3. In Service: System 5 Flow Meter Initiated (Lead Unit)
4. In Service: System 5 Flow Meter Initiated (Lag Unit #3)
5#3 SRV 03:45PM
VOLUME 1000 g
5. In Service: System 6 Flow Meter Initiated (Lead Unit)
NETWORK/COMMUNICATION CABLES
AND CONNECTIONS
Use a 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.
1 2
M1
S1
OPTIONAL MOTOR/PUMP ON DURING REGENERATION
(N.O. OUTPUT)
SWITCHED HOT
NEUTRAL
UNSWITCHED HOT
24VAC/3A MAX.
30VDC/3A MAX.
NEUTRAL
SWITCHED HOT
BYPASS RELAY
(SOLENOID) 24VAC
Motor
40968
GROUND
Transformer
61920-0X
METER
19791
GREEN
RED
BLACK
OPTIONAL REMOTE
SIGNAL START
SWITCH (N.O.)
LOCK
START
Ground
Figure 6 7000NXT Circuit Board
The number of network/communication cables needed for
setup is one less than the total number of valves.
Two-Unit System: One network/communication cable
Three-Unit System: Two network/communication cables
Four-Unit Systems: Three network/communication cables
43343 Rev A
FLECK
7000 NXT Service Manual • 7
