AQmatic NX48 User manual

NX48 and NX51 NXT Stager Controller
Service Manual
43037 Rev F AU11
TABLE OF CONTENTS
NXT STAGER DIMENSIONS .................................................2
SYSTEM SPECIFICATIONS 48ES AND 51ES SERIES........2
SYSTEM DEFINITIONS.........................................................3
SYSTEM OPERATION IN SERVICE
(SYSTEM 14-DEMAND).........................................................4
TIMER DISPLAY FEATURES.................................................5
NETWORK/COMMUNICATION
CABLES & CONNECTIONS ..................................................5
TIMER OPERATION ..............................................................6
MASTER PROGRAMMING MODE FLOW CHART...............7
USER PROGRAMMING MODE FLOW CHART....................9
DIAGNOSTIC PROGRAMMING MODE FLOW CHART........9
PLUMBING DIAGRAMS.........................................................11
SOLENOID USE.....................................................................14
STAGER CONTROLLER, 48ES, NEMA 4 24V/50-60Hz
ASSEMBLY ............................................................................15
STAGER CONTROLLER, 51ES, NEMA 4 24V/50-60Hz
ASSEMBLY ............................................................................16
WIRING DIAGRAM 48/51ES STAGER CONTROLLER ........17
TROUBLESHOOTING ...........................................................18
SERVICE ASSEMBLIES ........................................................19
IMPORTANT PLEASE READ:
• Theinformation,specicationsandillustrationsinthis
manual are based on the latest information available
at the time of printing. The manufacturer reserves the
right to make changes at any time without notice.
• This manual is intended as a guide for service of the
controller only. System installation requires information
from a number of suppliers not known at the time of
control manufacture. This product should be installed
by a plumbing professional.
• This product must be installed in compliance with all
state and municipal plumbing and electrical codes.
Permits may be required at the time of installation.
• If daytime operating pressure exceeds 80 psi,
nighttime pressures may exceed pressure limits. A
pressure reducing valve must be installed if pressure
exceeds 125 psi.
• Do not install the unit where temperatures may drop
below 32°F (0°C) or above 110°F (43°C).
• Do not place the unit in direct sunlight. Black units will
absorb radiant heat increasing internal temperatures.
• Do not strike the controller or any of the components.
• Warranty of this product extends to manufacturing
defects. Misapplication of this product may result
in failure to properly condition water, or damage to
product.
• Apreltershouldbeusedoninstallationsinwhichfree
solids are present.
• Correct and constant voltage must be supplied to the
controller to maintain proper function.

SYSTEM SPECIFICATIONS 48 AND 51
NXT SERIES
Generic Meter Guidelines
•Open collector output
•Pulse rate generated must not exceed 100 pulses per
second (100 Hz), or 6,000 pulses per minute
•Support for meter outputs in the range of 1-255 gallons
(25.5 m3) for every 1-255 pulses
Example: 35 gallons/100 pulses
(=3.5 gallons/10 pulses, = 0.35 gallons/1 pulse)
•Meter must operate at 5 VDC
Electrical Rating
•115 VAC ±20% input, 24 VAC output w/50 VA (maintain
input voltage in this range)
•230 VAC ±20% input, 24 VAC output w/50 VA (maintain
input voltage in this range)
•Max Rated Power 15W
Humidity
•95% RH, non-condensing
Temperature
• Maximumcontroluidtemperature140°F(60°C)
•Operate where ambient temperatures are above 32°F
and below 110°F
Pressure
• Maximumcontroluidpressure125psi(8.5bar)
• Controluidcanbeeitherwaterorairandmustbeequal
to or greater than system pressure.
NXT STAGER DIMENSIONS
(6X) 1/8" NPT PORT 60 APART
48ES STAGER
51ES STAGER
(8X) 1/8" NPT - 45 APART
ø 0.733 [18.62 mm]
4 places
ø 0.88
[22.4 mm]
11.13 [282.7]
10.50 [266.6]
5.25 [133.4]
1.41 [35.8]
2.45 [62.2]
2.06 [52.3]
2.75 [69.9] 2.75 [69.9]
4.00 [101.6]
2.00 [50.8]
2.72 [69]
3.50 [88.9]
6.42 [163.1] 1.25 [31.7] 6.00 [152.4]
(4X) R.16 [4] (4X) .19 [4.8]
.32 [8.1]
11.13 [282.7]
1.75 [44.4]
Optional
Solenoid
8.91 [226.3]
1/8" NPT Drain
1/8" NPT Filtered Inlet
1/8" NPT Drain
1/8" NPT Filtered Inlet
1/8" NPT Drain
ø 0.733 [18.62 mm]
4 places
ø 0.88
[22.4 mm]
*
*
*
*
Figure 1
*NOTE: Drill as required. These holes
will only be drilled at factory if
required.
NXTStagerControllerAU11

SYSTEM DEFINITIONS
System
Number
System
Description
# of
Tanks/
Controls
Type Service Outlet Valve
Controlled by...
Operation Discussion
4 Single Unit 1 Time Clock: No Meter
Immediate: One Meter
Delayed: One Meter
Remote Signal Start: No Meter
Stager
(no solenoid required)
Singletankconguration.During
Regeneration no water available to service
unless optional bypass valve #2A installed.
5 Interlocked 2, 3, or 4 Immediate: All Meters
Remote Signal Start: No Meter
Stager
(no solenoid required)
All tanks in parallel supplying treated water.
Each unit in the system will have its own
ow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
longest regeneration queue time will begin
Regeneration. No more than one unit will be
in Regeneration at a time.
6 Series
Regeneration
2, 3, or 4 Immediate: One Meter
Delayed: One Meter
Remote Signal Start: No Meter
Stager
(no solenoid required)
All tanks in parallel supplying treated water.
Only#1controlwillmonitorowmeter/
sensor input. When a regeneration is
required for the system, it will regenerate
valveaddress#1rst,immediatelyfollowed
by #2, then #3, then #4 if installed. No more
than one unit will be in Regeneration at a
time.
7 Twin
Alternating
2 Immediate: One Meter
Remote Signal Start: No Meter
Solenoid
(plug stager port 2)
One tank online supplying treated water,
one tank in Standby. Only #1 control
willmonitoritsow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 a solenoid connected to the service
outlet valve of that tank.
9Multiple Tank
Alternating
2, 3, or 4 Immediate: All Meters
Remote Signal Start: No Meter
Solenoid
(plug stager port 2)
One, two, or three 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 a solenoid connected to the service
outlet valve of that tank.
14 Demand
Recall
2, 3, or 4 Immediate: All Meters Solenoid
(plug stager port 2)
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owratetothePrimaryServiceUnit
increasestoauserspeciedrate,thenext
unit in sequence will move from Standby to
Service.Astheowratefallsbelowtheuser
specied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owratedemandthe
regenerated unit will then be placed either
into Standby or Service. Only one unit will
be in Regeneration at a time.
NXTStagerControllerAU11

SYSTEM OPERATION IN SERVICE
(SYSTEM 14-DEMAND)
The system operates as part of a multi-tank regeneration
system. This example applies to either a 2, 3 or 4 tank system.
Eachtankinthesystemwillhaveanactiveowmeterinput,
even in Standby.
ThenumberoftanksInServicedependsontheowrate.
Examples of a Four-Unit System:
1. One Tank is In Service at all times (the "primary tank").
In Service
(Primary Tank) Standby
1234
2. Thetotalowratetotheprimarytankincreasedpastthe
rsttrippointprogrammedrate.Theowstayedpast
the trip point delayed time. The next tank (least volume
remaining) changes from Standby to In Service. This then
splitsthetotalowbetweentwometers.
In Service
1234
Standby
First Trip Point
(Primary Valve)
Total Flow Split
Between Two Meters
3. Theowratedemanddecreasedbelowthersttrippoint.
The tank returns to Standby.
Standby
Flow Rate Demand
Below First Trip Point
(Primary Valve)
1234
4. Totalowratedemandincreasedpastasecondtrippoint
programmed rate. The second and third tank (least volume
remaining) changes from Standby to In Service. The total
owissplitbetweenthethreemeters.
Standby
Flow Split Between
Three Meters
12 34
5. The third tank returns to Standby as demand decreases
past the second trip point.
Standby
Flow Split Between
Two Meters
12 34
6. TanksreturntoStandbyduetodecreasedtotalowrate
and trip points programmed. The tank with the most
remainingvolumewillbethersttogointoStandby.
Full Capacity
4th in Standby
(Primary Valve)
3/4 Capacity
3rd in Standby
1 2 34
1/2 Capacity
2nd in Standby
1/4 Capacity
1st in Standby
7. The primary tank regenerates. The next tank with the least
remaining volume becomes the new primary tank. The tank
withthenextleastvolumeremainingwillbethersttrip
point programmed rate. Tanks continue operating in this
order.
Full Capacity
4th in Standby
3/4 Capacity
3rd in Standby
1 2 34
1/2 Capacity
First Trip Point
Programmed Rate
1/4 Capacity
New Primary Tank
System Operation in Regeneration:
If two tanks are In Service and both reach
Volume Remaining = 0, the other two tanks will shift from
Standby to In Service. The lead tank with
Volume Remaining = 0 will start Regeneration. The second
tankwithVolumeRemaining=0willenterStandby.Ifow
increases past the trip point a third tank needs to enter In
Service. The tank in Standby with Volume Remaining = 0 will
shiftintoInServicetomaintainasteadyow.Operatingfor
extended periods in this mode may degrade the water quality.
NXTStagerControllerAU11

TIMER DISPLAY FEATURES
System
Number
Valve
Address
Valve State
(SBY, SRV, INI, LCK)
Flow
Indicator
Time
of Day
Shift Button
Adjusts Values to the Left
Up Button
Adjusts Values Up
Down Button
Adjusts Values Down
Volume Remaining
Status LED
Display Screen
Time of Day alternates
with Error Screen
Example: Valve #, Volume
Remaining, Errors
Diagnostic Button
View Flow Rate, Peak Flow
Rate, Totalizer, Hours
Between Last Two
Regenerations, Hours Since
Last Regeneration, Adjustable
Volume Remaining, Valve
Position, Send & Receive
Errors, Software Version
Extra Cycle Button
Cycle Valve in
Regeneration/Cycle
Programming Steps
Figure 1
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.
Service (SRV) - SRV will display when the unit is In Service.
LCK (Lock) - Lock will be displayed when contact closure is
applied across the interlock terminals on the circuit board. 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. 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owisgoingthroughthemeter.
NETWORK/COMMUNICATION CABLES
& CONNECTIONS
Use a CAT5 Network/Communication cable.
Connect the network/communication cable to either port before
programming.
The maximum cable length between timers is 100 feet.
Connect units together from one communication port to the
next communication port. The order is not important.
Communication Ports
Ground
Lock Regen
Figure 2 Current NXT Circuit Board
NXTStagerControllerAU11

TIMER OPERATION
Set Time of Day
Hold the Up or Down button to change time. While in time
change mode press Shift to adjust next digit over. On multiple
tank systems change time on #1 control only. All other controls
in system will mirror the time on control #1.
Manually Initiating a Regeneration
1. When timer is In Service or Stand By, press the Extra Cycle
buttononthemainscreenforve(5)secondstoforcea
manual regeneration if another unit is not in Regeneration.
2. The timer reaches Regeneration cycle Step #1.
3. Press the Extra Cycle button once to advance valve to the
next Regeneration cycle.
Timer Operation During Regeneration
In the Regeneration cycle step display, the timer shows
the current Regeneration cycle number the valve is in, or
has reached, and the time remaining in that step. Once all
regeneration steps are complete the timer returns to In Service
and resumes normal operation.
Example: 12 minutes remaining in Cycle 1
Press the Extra Cycle button during a
Regeneration Cycle to immediately advance the
valve to the next cycle and resume normal timing.
Flow Meter Equipped Timer
During normal operation the Time of Day screen alternates with
the Error screen (if errors are present).
As treated water is used, the Volume Remaining display counts
down from the calculated system capacity to zero. When zero
is reached a Regeneration cycle begins if no other units are in
regeneration.
Timer Operation During Programming
The timer enters the Program Mode in Standby or Service
Mode as long as it is not in regeneration. While in the Program
Mode the timer continues to operate normally monitoring water
usage. Timer programming is stored in memory permanently.
Timer Operation During A Power Failure
During a power failure all timer displays and programming are
stored for use upon power re-application. The timer retains
all values, without loss. The timer is fully inoperative and any
calls for regeneration are delayed. The timer, upon power
re-application, resumes normal operation from the point that it
was interrupted.
NOTE: A ashing Time of Day display indicates a power
outage. Hold the Up or Down button to reset time.
Remote Lockout
The timer does not allow the unit/system to go into
Regeneration until the regeneration lockout input signal to the
unit is cleared. This requires a contact closure to activate the
lockout. The recommended gauge wire is 20 with a maximum
length of 500 feet.
Regeneration Day Override Feature
If the Day Override option is turned on and the actual number
of days since last regeneration exceeds the set regeneration
day override value, the Regeneration cycle starts. If other units
are in regeneration, it is added to a regeneration queue. This
occurs regardless of the remaining volume available.
WAR NING:
This unit is not designed to drive/power
external devices. Transformer must be
grounded. Ground wire must be terminated
to the back plate where grounding label is
located.
Auxiliary Relay Output
The Auxiliary Relay Output on the circuit board can be
programmed to be closed during a window of time within the
regeneration sequence. The Aux Relay Output Start time sets
the turn-on time referenced to the start of regeneration. The
AuxRelayOutputEndtimesetstheturn-o󰀨timereferencedto
the start of regeneration. The Auxiliary Relay Output shares the
same relay as the Chemical Pump Output. See wiring diagram
for connection information.
Chemical Pump Output
When the Chemical Pump Output feature is enabled, the
control will calculate volume of water used and close the
relay when the set CPO Aux Relay Volume is reached. Once
activated, the relay will stay closed for the amount of time set
in CPO Aux Relay Time. The Chemical Pump Output only
functions while in service, and the CPO volume is reset to zero
each regeneration. The Chemical Pump Output shares the
same relay as the Auxiliary Relay Output. See wiring diagram
for connection information.
NXTStagerControllerAU11

REGEN TYPE:
TIME CLK DELAYED
Options: Time Clock Delayed (System 4 Only) (Default)
Meter Immediate (All System Types)
Meter Delayed Fixed Reserve (Systems 4 & 6 Only)
Example:
Time Clock Delayed (Default)
VALVE TYPE:
STAGER-NOTCH CAM
Options: 2750
2850
2900
3150
3900
Stager - Notch Cam (Default)
Example:
Stager - Notch Cam (Default)
REMOTE SIGNAL
START:OFF
Options: 00:06:00 (Hours:Munutes:Seconds)
Range: 1 second to 99 minutes (1 hour, 39 minutes)
Example:
Off (Default)
DISPLAY FORMAT:
US-GALLONS
Options: U.S. - Gallons (Default)
EU-Metric - Liters (Metric)
Example:
U.S. Gallons (Default)
UNIT CAPACITY:
0300000 GRAINS
Options: Grains (in U.S. Format) (Default)
Grams (in Metric Format)
Example:
0300000 Grains (Default)
CAPACITY SAFETY
FACTOR: 00%
Range: 0 to 50%
Example:
00% (Default)
FEED WATER
HARDNESS: 15 GPG
Range: 1 to 199 Grains/Gallon (U.S. Format)
2 to 199 miligrams CaCOs/L (Metric Format)
Example:
15 GPG (U.S. Format) (Default)
TRIP POINT 1:
000 gpm
Range: 2 to 4 Valves in the System
NOTE: This screen will not display for System Type 4.
NOTE: In European Units - Liters (Metric) mode, the display will be in
24-hour time.
NOTE: In U.S. - Gallons mode, the display will be in 12-hour time.
NOTE: Use the Shift button to move to the left.
Range: 1 to 9,900,000 Grain Capacity in U.S. Format
1.0 to 190,000 grams CaCO3Capacity in Metric Format
NOTE: Use the Shift button to move to the left.
NOTE: Use the Shift button to move to the left.
NOTE: This screen will only display on the lead unit for System Types 6 & 7.
For all other System Types, it will display for all units.
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. Use the Shift button to change each
decimal position.
NOTE: This screen will only display for System 14.
TRIP POINT 2:
gpm
NOTE: This display will not be viewed in System 14.
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. Use the Shift button to move one space
to the left.
TRIP DELAY 1:
30 SECONDS
NOTE: This screen will only display for System 14.
1 to 997 gpm
1 to 3997 Lpm
2 to 998 gpm
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)
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
Example:
System Type 4, Single Unit
Example:
Valve Address #2 (Second Control Valve) (Default)
SYSTEM SIZE:
2 VALVES
Options: 2 Valves in the System (Default)
3 Valves in the System
4 Valves in the System
Example:
2 Valves in the System (Default)
REGEN TYPE:
TIME CLK DELAYED
Example:
Time Clock Delayed (Default)
SELECT LANGUAGE:
ENGLISH
Options: English
Espanol
Portugues
Deutsch
Francais
Example:
English
Range: 2 to 4 Valves in the System
NOTE: This screen will not display for System Type 4.
NOTE: This screen will not display for System Type 4.
MASTERPROGRAMMING MODE FLOW
CHART
CAUTION Before entering Master Programming, please
contact your local professional water dealer.
When the Master Programming Mode is entered, parameters
can be set to make the timer(s) function as needed.
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.
OR
2. Set the time of day display to 12:01 PM or 12:01HR. Press
and hold Up or Down buttons to set the time. Then press
the Up and Down buttons at the same time for 5 seconds.
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 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.
NXT Stager Controller AU11

MASTERPROGRAMMING MODE FLOW
CHART continued
REGENERATION DAY
OVERRIDE:OFF
Example:
Off (Default for Meter)
On (Default for Time Clock)
REGENERATION DAY
OVERRIDE:01 DAYS
Options: Off (Default for Meter) or On (Default for Time Clock)
Example:
1 Day
Range: 1 to 99 Days
REGENERATION
TIME: 02:00AM
Example:
2:00 A.M. (Default)
Options: A.M. (U.S. Format)
HR (Metric Format)
NOTE: Regeneration time will not appear unless Regeneration Day Override
is on.
CYCLE 1 00:10:00 Example: Backwash
00:10:00 (Default 48-00 Stager & 51-09 Stager)
(Hours:Minutes:Seconds)
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. System size must be 3 or 4 to appear. Use
the Shift button to move one space to the left.
NOTE: This screen will only display for System 14.
TRIP DELAY 2:
30 SECONDS
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. System size must be 3 or 4 to appear. Use
the Shift button to move one space to the left.
NOTE: This screen will only display for System 14.
TRIP POINT 2:
gpm
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. System size must be 4 to appear. Use the
Shift button to move one space to the left.
NOTE: This screen will only display for System 14.
TRIP POINT 3:
gpm
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. System size must be 4 to appear. Use the
Shift button to move one space to the left.
NOTE: This screen will only display for System 14.
TRIP DELAY 3:
30 SECONDS
NOTE: Display will only appear on the master timer and it must be
programmed as valve position #1. Use the Shift button to move one space
to the left.
NOTE: This screen will only display for System 14.
CYCLE 2 01:00:00 Example: Brine
01:00:00 (Default 48-00 Stager & 51-09 Stager)
(Hours:Minutes:Seconds)
Options: 01:00:00 for Conditioner for the 48-00 Stager & 51-09 Stager (Default)
00:00:00 for Filter for the 48-00 Stager
CYCLE 3 00:10:00 Example: Fast Rinse
00:10:00 (Default 48-00 Stager & 51-09 Stager)
(Hours:Minutes:Seconds)
CYCLE 4 OFF Example:
Off (Default 48-00 Stager)
CYCLE 4 00:12:00 Example: Refill
00:12:00 (Default 51-09 Stager)
(Hours:Minutes:Seconds)
CYCLE 5 OFF Example:
2 to 998 gpm
1 to 3997 Lpm
3 to 999 gpm
1 to 3997 Lpm
AUXILIARY RELAY:
DISABLED
Example:
Auxiliary Relay is Disabled
Options: Enabled
Disabled (Default)
AUX RELAY OUTPUT
START 1 00:00:00
Example:
Auxiliary Relay Output Start 1 at
0 hours, 0 minutes, & 0 seconds
Range: 00:00:00 to 18:00:00
NOTE: Only displayed if Auxiliary Relay is enabled in previous screen.
Auxiliary Relay will only display if Chemical Pump is OFF for System
Types 6 & 7.
AUX RELAY OUTPUT
END 1 00:00:00
Example:
Auxiliary Relay Output End 1 at
0 hours, 0 minutes, & 0 seconds
Range: 00:00:00 to 18:00:00
CHEMICAL PUMP:
DISABLED
Example:
Chemical Pump is Disabled
Options: Enabled
Disabled (Default)
NOTE: This screen will only display on the lead unit for System Types 6 & 7.
For all other System Types, it will display for all units.
CPO AUX RELAY
TIME: 00:00:00
Example:
Each time chemical pump relay is on, run for
30 seconds (00:00:30)
Range: 00:00:00 to 02:00:00
FLOW METER:
1.0 PADDLE
Example:
1.0 Paddle Flow Meter
Options: 1.0 Paddle
1.0 Turbine
1.5 Paddle
1.5 Turbine
2.0 Paddle
3.0 Paddle
Generic
NOTE: Default flow meter type is based on the valve type. This screen will
only display on the lead unit for System Types 6 & 7. All other system types
it will display for all units.
MAXIMUM FLOW
RATE: 0000 gpm
Example:
Maximum Flow Rate of 0 gpm
Range: 20 - 2000 gpm (U.S. Format)
20 - 2000 Lpm (Metric Format)
NOTE: Only displayed if “Generic” is chosen for the flow meter.
Range: 1 - 99 Gallons (U.S. Format)
0.1 - 09.9 L (Metric Format)
Pulses: 1 - 99
Options: Gallons (U.S. Format)
Liters (Metric Format)
ADD 01 GALLONS
EVERY 001 PULSES
Example:
Add 1 Gallon for Each Pulse in U.S. Format
NOTE: Only displayed if “Generic” is chosen for the flow meter.
PROGRAMMING UNIT
PLEASE WAIT...
Example:
Master Programming Mode is Exiting
CPO AUX RELAY
VOLUME: 000 9
Example:
Energize Chemical Pump relay every 50 gals (50)
Energize Chemical Pump relay every 200 L (200)
Range: 1 to 999 gallons in U.S. Format
1 to 9999 L in Metric Format
NOTE: This screen will only display when cycle 4 is not OFF.
CYCLE 5 OFF
Example:
Off (Default 51-09 Stager)
NXT Stager Controller AU11

USER PROGRAMMING MODE FLOW
CHART
Entering User Programming Mode
Hold the Up and Down buttons for 5 seconds.
FEED WATER
HARDNESS: gpg
REGENERATION DAY
OVERRIDE: OFF
REGENERATION DAY
OVERRIDE:99 DAYS
REGENERATION
TIME: 02:00AM
Options: U.S. Format [OFF] = default
Metric Format [OFF] = default
Options: U.S. Format [gpg]
Metric Format [mgL]
Options: U.S. Format [02:00AM] = default
Metric Format [02:00] = default
DIAGNOSTIC PROGRAMMING MODE
FLOW CHART
Entering Diagnostic Programming Mode
1. Push and release the "D" button.
2. Press the Extra Cycle button once per display until all
displays are viewed and Normal Display is resumed.
3. Push and release the"D" button at anytime during
diagnostic mode and the timer will exit the mode.
4. Depending on the current controller programming, certain
displays may not be able to be viewed or set.
CURRENT FLOW
RATE: 0 gpm
PEAK FLOW RATE:
0 gpm
TOTALIZER:
130 g
LAST TWO REGENS:
0 HOURS
LAST REGEN
0 HOURS
VOLUME REMAIN:
1000 g
VALVE ADDRESS
#2
VERSION:
X.XX
Explaination: Flow rate at this time.
Explaination: Peak flow since last regeneration.
Explaination: Gallons at the outlet since installation.
Explaination: Hours between the last regeneration and the one before it.
Explaination: Hours since last regeneration.
Explaination: Volume remaining; can be adjusted.
Explaination: Controller unit number.
Explaination: Installed software level of the controller in use.
NXTStagerControllerAU11

NXT Multi Language
Programming Parameters and Ranges
Gallons Liters
Valve Address 12341234 1 2 12341234 Select Language x x x xxxxxxxx x x xxxxxxxx System Size xx xxx Regen Type x x x xxxxxxxx x x xxxxxxxx Valve Type x x x xxxxxxxx x x xxxxxxxx Regenerant Flow x x x xxxxxxxx x x xxxxxxxx Remote Signal Start x x x xxxxx x xxxx Display Format x x x xxxxxxxx x x xxxxxxxx US - Gallons EU - Metric-Liters
Unit Capacity x x xxxxx x x xxxxxxxx 1 - 9900000 Grains 1 - 198000 gCaCO3 Capacity Safety Factor x x xxxxx x x xxxxxxxx
Feed Water Hardness x x xxxxx x x xxxxxxxx 1 - 199 Grains/Gallons 1 - 1999 mgL
Trip Point 1 x0 - 997gpm 0 - 3997 Lpm
Trip Delay 1 x30 - 99 Seconds 30 - 99 Seconds Trip Point 2 xTrip Point 1 + 1 - 998 gpm Trip Point 1 + 1 - 3998 Lpm Trip Delay 2 x30 - 99 Seconds 30 - 99 Seconds Trip Point 3 xTrip Point 2 + 1 - 999 gpm Trip Point 2 + 1 - 3999 Lpm Trip Delay 3 x30 - 99 Seconds 30 - 99 Seconds Regeneration Day Override x x x xxxxx x xxxxxxxx
Regeneration Time
xo o ooooo o o oooooooo 12:00 a.m. - 11:59 p.m. 00:00 - 23:59 Hour
Cycle 1 x x x xxxxxxxx x x xxxxxxxx Cycle 2 x x x xxxxxxxx x x xxxxxxxx Cycle 3 x x x xxxxxxxx x x xxxxxxxx Cycle 4 x x x xxxxxxxx x x xxxxxxxx Cycle 5 x x x xxxxxxxx x x xxxxxxxx Auxiliary Relay x x x xxxxuxxx ux xxxxxxxx
Aux Relay Output Start
c c c cccccccc c c cccccccc
Aux Relay Output End
c c c cccccccc c c cccccccc
Chemical Pump x x xxxxuuxxxxxxxx
CPO Aux Relay Volume
c c ccccc c cccccccc 1 - 999 gallons 0001 - 9999 Liters
CPO Aux Relay Time
c c ccccc c cccccccc 00:00:01 - 02:00:00 00:00:01 - 02:00:00
Flow Meter x x xxxxx x xxxxxxxx
Generic
x x xxxxx x xxxxxxxx
Maximum Flow Rate
a a aaaaa a aaaaaaaa 20 - 2000 GPM 20 - 2000 LPM
Add _ _ _ Gallons or Liters
a a aaaaa a aaaaaaaa 1 - 255 Gallons 001 - 255 Liters
Every _ _ _ Pulses
a a aaaaa a aaaaaaaa 1 - 255 1 - 255
Notes o -
u -
c - a -
System Type
If Generic Flow Meter is chosen, then programming parameters will be viewed. Regeneration Time will only be viewed if Regeneration Day Override is used. If Auxiliary Relay is Enabled then Chemical Pump Relay will not be viewed or if Chemical Pump Relay is Enabled then Auxiliary Relay will not be viewed. All Relay Output parameters programming will be viewed if Enabled.
00:00:01 to Total Regeneration Time - 1
Start Time + 1 to Total Regeneration Time
Enabled, Disabled
Off, 1 - 99
00:00:00 - 04:00:00
Off, 00:00:00 - 04:00:00
1" 1.5" Paddle or Turbine, 2" Paddle, 3" Paddle, Generic
Off, 00:00:00 - 04:00:00 Off, 00:00:00 - 04:00:00 Off, 00:00:00 - 04:00:00
Enabled, Disabled
2750, 2850, 2900, 3150, 3900, Stager
Downflow, Upflow, Upflow Fill First
Off, 00:00:01 - 01:39:00
0- 50%
6
Series
7
Alternating
9
Alternating
Time Clock, Metered Delayed, Metered Immediate
Programming Parameter Ranges
4
Time
Clock
4
Metered
Immediate
4
Metered
Delayed
5
Interlock
14
Demand
Recall
1 thru 4
English, Espanol, Portugues, Deutsch, Francais
1 thru 4
NXTStagerControllerAU11

Stager Operation
Stagers are motor driven, rotary multi-port valves used to
controlasetofvalvesinapredenedsequence.Theyfunction
byinternallyconnectinginletpressuretoadenedsetof
control ports and allowing other control ports be vented through
a drain. Control ports are used to open and close valves in a
preset sequence. As the stager advances to various positions,
di󰀨erentvalvesareopenandclosedinasystem.Thecontrol
port pressure and vent sequence is preset at the factory and
cannotbeeldaltered.
Stager Installation
1. Connect a constant pressure water or air source to the 1/8"
NPTstagerinlet.Controluidpressuremustbeequaltoor
greater than system pressure. To ensure long trouble free
operation,a100micronlterinthecontrolpressurelineis
recommended.
2. Stager drain port should be left open or discharged to
unrestricted or open drain. DO NOT plug or restrict drain
port.
3. Connect the 1/8" NPT control ports to appropriate valves.
Refer to tubing schematic provided in the Plumbing
Diagrams section of this manual. Tubing inside diameter
should be 1/8" or larger.
Inverted Type Stagers
Stagers that are ordered inverted would be used on systems
with all normally closed valves. Inverted Stagers send pressure
signals to open valves and vent signals to close valves.
PLUMBING DIAGRAMS
4 Position Softener (48-00 Stager)
Optional Hard
Water Bypass Valve
Note A: All valves normally open except optional valve 2A.
Note B: Inverted Stager types will have these ports pressurized.
Inverted Stager to be used with all valves normally closed except
optional valve 2A.
A
B
Drain Line Flow
Control not shown
Filter Operation Using 48-00 Stagers
Whenusinga48-00Stagertooperatealter:
1. Plug stager port #5 using a 1/8" pipe plug
2. Program cycle 2 time to 0:00:00 or the desired settle time
NXTStagerControllerAU11

4 Position Filter (48-00 Stager)
Optional Hard
Water Bypass Valve
Note A: All valves normally open except optional valve 2A.
Installer to plug (with
PN1071903)for lter operation
Note C: Program Cycle 2 time to 00:00:00 for filter operation.
4 POSITION FILTER
Drain Line Flow
Control not shown
Note B: Inverted Stager types will have these ports pressurized.
Inverted Stager to be used with all valves normally closed except
optional valve 2A.
A
B
C
5 Position Softener w/Timed Brine Rell
(51-06 Stager)
PLUMBING DIAGRAMS continued
NXTStagerControllerAU11

PLUMBING DIAGRAMS continued
Multiple Tank 4 Position Softener (48-00 Stager)
Multiple Tank 5 Position Softener (51-06 Stager)
DRAIN LINE FLOW
CONTROL NOT SHOWN
6A
3A
2A
INLET
UNIT A
4A
EJECTOR
BRINE 1A
5A 5B
DRAIN
2B
UNIT B
4B
6B
1B
3B
RAW WATER
To Additional Tanks
As Required
SERVICE
NOTE: All valves normally open, pressure to close.
NOTE: Valve 2 for each tank is controlled by solenoid for
system 7, 9, 14
NOTE: All valves normally open, pressure to close.
NOTE: Valve 2 for each tank is controlled by solenoid for
system 7, 9, 14
5A 5B
1A 1B
3A 3B
2A 2B
4A 4B
6A 6B
8A 8B
7B
7A
UNIT A UNIT B
NXTStagerControllerAU11

SOLENOID USE
Solenoids only required for Systems 7, 9 and 14
Installer to
Plug Port 2
Series 48-00/51-09 Stager
1 2
3
Drain
Solenoid
Valve
Inlet Pressure
1
3
2
Flow
Solenoid Energized
1
3
2
Flow
Solenoid De-energized
Energized To Close
The NXT Stager control can operate an optional 24 VAC
solenoidtocontrolwhenatankisoffline.Thissolenoidis
electrically connected to the "lower drive" connection on the
circuit board, and control pressure is run through the solenoid
to the service outlet diaphragm valve.
The solenoid installed at the factory is a universal type. It is
plumbed in an energize to close configuration when service
outlet valve is normally open.
When a tank enters Regeneration or Standby the solenoid is
energized. Pressure from solenoid port 1 passes to port 2.
The diaphragm valve #2 will close.
When a tank enters In Service the solenoid is de-energized.
The inlet pressure to solenoid port 2 is stopped. The
diaphragm valve is vented through solenoid port 2 to port 3
(drain). The valve #2 opens.
Inverted Stagers Only - Energize to Open
If the service outlet vavle is normally closed, connect constant
pressure source to solenoid port 3. Connect solenoid port 2 to
service outlet valve. Solenoid port 1 is drain.
NXTStagerControllerAU11

STAGER CONTROLLER, 51 & 48, NXT, NEMA 4
24V/50-60Hz ASSEMBLY
Service Parts Common To Both 48 & 51 NXT Stager Control
61783..........................Kit, 48/51 ES NEMA4, Solenoid
61784..........................Kit 48/51 ES, 3214 NXT, CKT Board &
Keypad
61764..........................Cable Assy, Communication, CAT 5,
5 Meters Long
1075499......................Switch, Micro
40941..........................Wire Harness, Upper Drive
1075502......................Wire Harness, 2nd Aux Switch
43001..........................Motor
4510157......................Transformer
See Service Assemblies Section for Stager and Cam
Assemblies
NXTStagerControllerAU11

WIRING DIAGRAM 48/51 NXT STAGER
CONTROLLER
NXTStagerControllerAU11

TROUBLESHOOTING
Detected Errors
If a communication error is detected, an Error Screen will alternate with the main (time of day) screen every few seconds.
•All units In Service remain in the In Service position.
•All units in Standby go to In Service.
•Any unit in Regeneration when the error occurs completes Regeneration and goes to In Service.
•No units are allowed to start a Regeneration Cycle while the error condition exists, unless they are manually forced
into Regeneration.
•When an error is corrected and the error no longer displays (it may take several seconds for all of the units in a
system to stop displaying the error message), the system returns to normal operation.
NOTE: During the error condition the control continues to monitor the ow meter and update the volume
remaining. Once the error condition is corrected all units return to the operating status they were in prior to
the error. Regeneration queue is rebuilt according to the normal system operation. Or, if more than one unit
has been queued for regeneration, then the queue is rebuilt according to which one communicates rst.
Message Displayed Cause For Error Correction
Flashing time Power outage. Program time by holding UP on Unit #1.
Detected Error = Matching Address Two or more units programmed with the same valve
address number.
Program each unit with unique valve
address number in Master Programming.
Detected Error = Program Mismatch Master program parameters do not match between two or
more controls. ConrmMasterProgrammingforeachunit.
Detected Error = No Message #1 No power to Control #1. Power Control #1.
Communication Cable to Valve Address #1 bad or missing. Connect or replace Communication Cable.
Detected Error = No Message #2 No power to Control #2. Power Control #2.
Communication Cable to Valve Address #2 bad or missing. Connect or replace Communication Cable.
Detected Error = No Message #3 No power to Control #3. Power Control #3.
Communication Cable to Valve Address #3 bad or missing. Connect or replace Communication Cable.
Detected Error = No Message #4 No power to Control #4. Power Control #4.
Communication Cable to Valve Address #4 bad or missing. Connect or replace Communication Cable.
Detected Error = E2 Reset Unit This message appears after a software reset. Reprogram control using Master
Programming section.
Test Mode Circuit Board was not programmed at factory. Replace Circuit Board.
Black Squares on screen Bad Circuit Board. Replace Circuit Board.
INI on screen for more than 2
minutes Circuit board not getting feedback from cycle switch.
Inspect Motor - should be rotating.
Connect wire harness to cycle switch.
Check Cycle Micro Switch.
CHG on screen for more than 2
minutes Control programmed incorrectly as 2900 or 3900 valve type. Reprogram unit as Stager Valve type.
SERVICE ASSEMBLIES
48-00 ES Stager Assembly
61808-01 ....................Stager Assy, 48-00, NXT 24VAC, HMG No 2nd Aux Switch
61808-02 ....................Stager Assy, 48-00, NXT 24VAC, SA, 2nd Aux Notched in Service
61808-03 ....................Stager Assy, 48-00, NXT 24VAC, SC, 2nd Aux Notched In Backwash
61808-10 ....................Stager Assy, 48-00, Inverted, NXT 24VAC, HMG No 2nd Aux Switch
61808-20 ....................Stager Assy, 48-00, Inverted, NXT 24VAC, SA, 2nd Aux Notched in Service
61808-30 ....................Stager Assy, 48-00, Inverted, NXT 24VAC, SC, 2nd Aux Notched In Backwash
1074817......................Kit, Internal Parts, 48-00 Stager
61817-01 ....................Cam Assy, 48-00 NXT, HMG, no 2nd Aux Cam
61817-02 ....................Cam Assy, 48-00 NXT, SA, 2nd Aux Notched in Service
61817-03 ....................Cam Assy, 48-00 NXT, SC, 2nd Aux Notched in Backwash
51-06 ES Stager Assembly
61967-01 ....................Stager Assy, 51-06, NXT 24VAC, HMG, No 2nd Aux Switch
61967-02 ....................Stager Assy, 51-06, NXT 24VAC, SA, 2nd Aux Notched in Service
61967-03 ....................Stager Assy, 51-06, NXT 24VAC, SC, 2nd Aux Notched in Backwash
61967-04 ....................StagerAssy,51-06,NXT24VAC,SH,2ndAuxNotchedinRell
1074888......................Kit, Internal Parts, 51-06 Stager
61968-01 ....................Cam Assy, 51-06 NXT, HMG, No 2nd Aux Switch
61968-02 ....................Cam Assy, 51-06 NXT, SA, 2nd Aux Notched in Service
61968-03 ....................Cam Assy, 51-06 NXT, SD, 2nd Aux Notched in Backwash NXTStagerControllerAU11

1163574 REV D MA2016
© 2016 AQ Matic Valve and Controls Company, Inc. All rights reserved.
All AQ Matic trademarks and logos are owned by AQ Matic or its affiliates. All other registered and unregistered trademarks and logos are the
property of their respective owners. Because we are continuously improving our products and services, AQ Matic reserves the right to change
specifications without prior notice. AQ Matic is an equal opportunity employer.
1163574 REV F MA2017