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21

Controller Features 

Push Settings

The ability to transmit user settings from one unit to all other con-

nected units. Select the desired Master Programming settings 

on one unit then push the same settings to all other connected 

units. After the push settings have completed, you may still make 

unique changes to individual units.

Auxiliary Relays

The NXT2 has two auxiliary relays that may be activated based 

on cycle, time, or volume.

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 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, immedi-

ately 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.

Activates during selected cycle step

Activates upon selected start time 
(Range: 0-91 minutes)

Deactivates upon selected end time 
(Range: Start Time plus 1 minute)

Activates when selected volume (gallon) 
is reached (Range: 0-99999)

Selected duration in seconds 
(Range: 0-9999 seconds)

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.

System 14 (2-8 Units) Progressive  

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.

Summary of Contents for pure water PWS30

Page 1: ...2_PWS30 P Installation Operation and Maintenance 3 Commercial Water Softeners Series PWS30 PWS30 2 PWS30 P PWS30 Simplex Systems PWS30 2 Duplex Alternating Systems PWS30 P Duplex Triplex and Quadplex...

Page 2: ...ality components Simple programming corrosion resistant mineral tank s and an easy to service design ensures this system will be durable and easy to maintain Thank You The Watts Team Softened water pr...

Page 3: ...r that is microbiologically unsafe or of unknown quality This system will not make microbiologically unsafe water safe Water that is unsafe must be treated separately from this conditioner Operating a...

Page 4: ...where an ion exchange resin is used to effectively exchange calcium and magnesium hardness cations for sodium cations in the water New or freshly regenerated ion exchange resin is saturated with sodiu...

Page 5: ...egeneration B System 7 2 Mineral Tanks 1 Meter Immediate Regeneration C System 14 2 8 Mineral Tanks 2 8 Meters Immediate Regeneration Progressive Flow Tank Staging GPM Threshold for Progressive Featur...

Page 6: ...5 2419 95 2419 108 2743 44 1118 44 1118 42 1067 60 1524 3245 PWS30151L11 995 8 2530 995 8 2530 1123 8 2854 503 8 1280 503 8 1280 50 1270 60 1524 4295 MODEL NO DIMENSIONS SHIPPING WEIGHT A B C D E F G...

Page 7: ...PWS30151K21 7100053 30 Cubic Foot 3 Duplex Alternating Softener with Flow Meter 42 X 144 X 117 6245 PWS30151L21 7100054 35 Cubic Foot 3 Duplex Alternating Softener with Flow Meter 50 X 164 X 117 8295...

Page 8: ...are missing or damaged contact your Watts representative If they can not be reached contact Watts customer service at 800 224 1299 A B C F E D G H Drain line and brine line flow controllers may come...

Page 9: ...me off during media loading 4c Place the distributor tube screen end down into the mineral tank and center it in the bottom The top of the distributor tube should be flush with the top of the tank Tes...

Page 10: ...must point towards the drain receptacle Only plumbing tape is allowed on the drain line flow controller fitting threads System Installation 14 Construct the drain line routing it to an appropriate dr...

Page 11: ...valve slightly until water can be heard flowing through the isolation valve and allow the mineral tank to fill with water Air will come out of the drain line until the mineral tank is full of water On...

Page 12: ...outlet headers need to be sized according to flow rate requirements by others 13 Power requirements 115v 60hz 2 7 Amps per control valve unless otherwise specified 14 Brine tank must be located within...

Page 13: ...VE NORMALLY CLOSED HEADER PIPE SEE NOTE 12 OUTLET SEE NOTE 12 3 FLOW METER SAMPLE PORT OUTLET UNION ISOLATION VALVE SEE NOTE 4 OUTLET PIPE Drain and Brine Connection Detail for PWS30 2 Series Drain wa...

Page 14: ...C PIPING SEE NOTE 15 MINERAL TANK BRINE TANK SEE NOTE 14 INLET UNION ISOLATION VALVE SEE NOTE 4 INLET SEE NOTE 12 SAMPLE PORT INLET PIPE DRAIN LINE SEE NOTE 10 BYPASS VALVE NORMALLY CLOSED HEADER PIPE...

Page 15: ...able Power Supply 3150 3900 Valves Wire Harness Meter Cable Power Supply Communication Cables Hinge Mount mount per valve model noted 44404 Rev A 44403 Rev A PWS30 PWS30 2 PWS30 P Systems use 3900 Typ...

Page 16: ...16 Wiring Diagram 44403 Rev A Wiring diagrams are reference only All wiring should be done by a certified electrician and meet all electrical codes...

Page 17: ...rds menu navigation Network two to eight valves via shielded CAT5 cables LED Status Indicator Blue In Service Flashing Blue Regeneration Queued Green Regeneration Flashing Green Standby Red Error cond...

Page 18: ...18 Controller Display...

Page 19: ...egeneration If regeneration occurs for any reason prior to the delayed regeneration time the manual regeneration request shall be cleared Pressing the Extra Cycle button while in regeneration will cau...

Page 20: ...ote Regeneration Ability to trigger a regeneration via a remote input Regeneration Types Softener Filter Meter Delayed When volume remaining reaches zero and the scheduled regeneration time is reached...

Page 21: ...on the NXT2 circuit board Activates during selected cycle step Activates upon selected start time Range 0 91 minutes Deactivates upon selected end time Range Start Time plus 1 minute Activates when se...

Page 22: ...rogramming certain values may not be able to be viewed or set 7 The controller will display local information not system information 8 In the event of a regeneration occurring while displaying master...

Page 23: ...button to advance to the next value Press the Left button to retreat to the previous value 3 Where applicable use the Up and Down buttons to adjust a value as desired 4 After progressing through all...

Page 24: ...splayed When regeneration has been completed the display will return to the main screen Example Real time flow rate reading Example Peak flow since last regeneration Example Gallons at the outlet sinc...

Page 25: ...n buttons to adjust as desired 3 Press the Extra Cycle button to advance to the Month field Press the Up or Down buttons to adjust as desired 4 Press the Extra Cycle button to advance to the Calendar...

Page 26: ...X X X X X X X Off Immediate Delayed Auxiliary 1 2 X X X X X X X X X X Off Alarm Based Cycle Based Time Based Lock Window 1 2 X X X X X X X X X X On Off Meter Type X X X X X X X X Paddle 0 75 1 1 5 2...

Page 27: ...fully hand tight and used as a lifting point when removing control valve from tank flange 11 Note the top of the distributor tube It must be flush with the top of the tank If it is above the top of th...

Page 28: ...ue to flush the resin bed until water at the drain is clear 23 After resin bed flushing is complete reconnect the power supply cable to the P14 port located on the back of the control valve controller...

Page 29: ...XF F 42 SOFTENER 2 1 68104691 K4560710 15 BRINE FLOW CONTROLLER ASSEMBLY 15 GPM 1 MXF F 48 SOFTENER 3 1 68108485 V2003 A 15 DRAIN FLOW CONTROL 15 GPM PVC 1 MXM F 24 SOFTENER 3 1 68108500 V2005 A 25 DR...

Page 30: ...05A MEDIA GRAVEL 20 FLINT 06 X 125 11 7300102 A7006A MEDIA GRAVEL 25 X 125 12 1 68102512 G2009A BRINE TANK ASSY 30X50 BLK W 900 AIR CHECK 12 1 68102509 G2008C BRINE TANK ASSY 39X48 BLK W 900 AIR CHECK...

Page 31: ...BER DESCRIPTION 1 1 68104640 K4560416 NT UPPER POWERHEAD F 3900 24V NTXT2 W POWER SUPPLY F 120V USA WO COVER 2 1 68104580 K4560240 COVER F 3150 3900 UPPER POWERHEAD 3 1 68104399 K4519791 02 ELECTRONIC...

Page 32: ...32 NXT2 Controller Assembly NXT2 CONTROLLER ASSEMBLY ITEM NO QTY PART NUMBER DESCRIPTION 1 1 68104777 K4562115 CONTROLLER ASSEMBLY NXT2 1...

Page 33: ...33 NXT to NXT2 Conversion Kit NXT TO NXT2 CONVERSION KIT ITEM NO QTY PART NUMBER DESCRIPTION 1 1 68104778 K4562121 01 CONTROLLER ASSY CONV KIT NXT TO NXT2 W POWER SUPPLY FOR USA 1...

Page 34: ...nt Parts 3900 Lower Powerhead 3900 LOWER POWERHEAD ITEM NO QTY PART NUMBER DESCRIPTION 1 1 68104642 K4560058 03 LOWER POWERHEAD F 3900 24V NTXT2 WO COVER 2 1 68104581 K4560240 22 COVER F 3900 LOWER PO...

Page 35: ...EMBLY DOWNFLOW F 3150 3900 UPPER 3 1 7300800 K4560131 SEAL SPACER KIT F 3150 3900 UPPER 4 1 7300801 K4560107 00 PISTON ASSEMBLY DOWNFLOW HWBP F 3900 LOWER 4 1 7300802 K4560107 10 PISTON ASSEMBLY DOWNF...

Page 36: ...e Valve 1800 BRINE VALVE ASSEMBLY ITEM NO QTY PART NUMBER DESCRIPTION 1 1 68104501 K4560036 02 BRINE VALVE ASSEMBLY 1800 BRASS DESIGN 3 1 1 68104582 K4560276 01 BRINE VALVE ASSEMBLY 1800 BRASS RETROFI...

Page 37: ...08 INJECTOR NOZZLE 1800 8 YELLOW 2 1 68104249 K4515128 09 INJECTOR NOZZLE 1800 9 VIOLET 2 1 68104250 K4515128 10 INJECTOR NOZZLE 1800 10 BLACK 3 1 68104237 K4515127 04 INJECTOR THROAT 1800 4 GREEN 3 1...

Page 38: ...ronic Meter 3 INCH STAINLESS STEEL METER ASSY ITEM NO QTY PART NUMBER DESCRIPTION 1 1 68104758 K4561935 10 METER ASSEMBLY 3 STAINLESS STEEL ELECTRONIC MECHANICAL 2 1 68110068 K4561939 METER DOME MECH...

Page 39: ...generation Inlet of control plugged due to foreign material broken loose from pipes by recent work done on plumbing system Remove piston and clean control valve Loss of mineral through drain line Air...

Page 40: ...ected system type in Master Programming Push correct valve settings in Master Settings Motor Stall No Changes Detected in the Optical Sensor for 6 Seconds The motor is on but no encoder pulses are det...

Page 41: ...out the drain If optional no hard water by pass piston is used water flow to service outlet is prevented by an extension on the service outlet until the end of the rapid rinse cycle or brine tank ref...

Page 42: ...nd the piston and out the drain Hard water enters at valve inlet flows thru nozzle and thru throat to brine valve to refill the brine tank Inlet flow also con tinues down thru mineral to the bottom di...

Page 43: ...43 Flow Data and Injector Draw Rates Down Flow 3900 Valve 3 Dist Tube on 24 Tank 3900 on Empty Tank...

Page 44: ...y In the event of a covered defect within the warranty period the Company will at its option replace or recondition the product without charge Disclaimer of Warranty THE WARRANTY SET FORTH HEREIN IS G...

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