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Pentair FLECK 3150 NXT Installer Manual

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FLECK 3150
NXT/NXT2
INSTALLER
MANUAL
WATER PURIFICATION

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Summary of Contents for Pentair FLECK 3150 NXT

  • Page 1 FLECK 3150 NXT/NXT2 INSTALLER MANUAL WATER PURIFICATION...

  • Page 2: Table Of Contents

    Installer manual Fleck 3150 NXT/NXT2 - Table of Contents Table of Contents Generalities ..................Scope of the documentation ............... Release management ................. Manufacturer identifier, product ..............Intended use ....................Abbreviations used ..................Norms......................1.6.1 Applicable norms ....................1.6.2 Available certificates...................
  • Page 3 Installer manual Fleck 3150 NXT/NXT2 - Table of Contents 4.1.1 Injector/DLFC/BLFC-Valve configuration............Sizing a softener (single unit) ..............27 4.2.1 Parameters to be considered ................4.2.2 Determining the required volume of resin ............4.2.3 Resin exchange capacity and capacity of the unit ..........
  • Page 4 Installer manual Fleck 3150 NXT/NXT2 - Table of Contents 6.1.2 Commands ......................6.1.3 Setting the time of the day .................. 6.1.4 Basic programming..................... 6.1.5 Master programming mode................6.1.6 Diagnostic......................6.1.7 Resetting the controller ..................NXT2 Controller................... 81 6.2.1 Display .........................
  • Page 5 Installer manual Fleck 3150 NXT/NXT2 - Table of Contents 9.3.2 Use original approved lubricants................ 135 9.3.3 Maintenance instructions ................... 135 Cleaning and maintenance................135 9.4.1 First steps......................135 9.4.2 Power head motor replacement ................. 136 9.4.3 NXT to NXT2 controller upgrade................. 140 9.4.4...
  • Page 6 Installer manual Fleck 3150 NXT/NXT2 - Table of Contents 11.7.10 Hot water, flanged 6", tank 42" to 63", SM, top and bottom distribution, external flange 80 mm connection, slots 0.2 mm ..........11.7.11 Hot water, flanged 6", tank 21" to 36", SM, top and bottom distribution, external flange 65 mm connection, slots 0.2 mm ..........

  • Page 7: Generalities

    Installer manual Fleck 3150 NXT/NXT2 - Generalities Generalities Scope of the documentation The documentation provides the necessary information for appropriate use of the product. It informs the user to ensure efficient execution of the installation, operation or maintenance procedures. The content of this document is based on the information available at the time of publication.

  • Page 8: Norms

    Installer manual Fleck 3150 NXT/NXT2 - Generalities Down Flow DLFC Drain Line Flow Control Hot Water Injector No By Pass Power Head Quick Connect Regen Regeneration S&S Seals & Spacers Safety Brine Valve Side Mounted Time Clock Top Mounted Up Flow Norms 1.6.1...

  • Page 9: Available Certificates

    Pentair shall not accept any liability for any loss or damage to profits, revenues, use, production, or contracts, or for any indirect, special or consequential loss or damage whatsoever.

  • Page 10: Scan & Service Application

    Installer manual Fleck 3150 NXT/NXT2 - Generalities 1.10 Scan & Service application Scan & Service mobile application is the ideal support for the maintenance person in his daily business. A simple scan of an identification (ID) label (1) present on the valve...

  • Page 11: Safety

    Installer manual Fleck 3150 NXT/NXT2 - Safety Safety Safety pictograms definition CAUTION WARNING Warns of a risk of minor injury or Warns against serious personal major material damage to the device injury and damage to health. or environment. DANGER Mandatory Warns against serious personal Standard or measure to apply.

  • Page 12: Personnel

    Installer manual Fleck 3150 NXT/NXT2 - Safety Any non-observation of the safety and protection rules, as well as any existing legal and technical regulations, will result in a risk of temporary or permanent injury, damage to property or environmental pollution.

  • Page 13: Hygiene Measures

    Installer manual Fleck 3150 NXT/NXT2 - Safety 2.4.2 Hygiene measures Disinfection • The materials used for the construction of our products meet the standards for use with potable water; the manufacturing processes are also geared to preserving these criteria. However, the process of production, distribution, assembly and installation, may create conditions of bacterial proliferation, which may lead to odor problems and water contamination;...

  • Page 14: Description

    Installer manual Fleck 3150 NXT/NXT2 - Description Description Technical specifications Design specifications/ratings Valve body Brass Rubber components EP or EPDM Weight (valve with controller) 22.8 kg (max) Recommended operating pressure 1.8 - 8.6 bar Maximum inlet pressure 8.6 bar Hydrostatic test pressure...
  • Page 15 Installer manual Fleck 3150 NXT/NXT2 - Description Electrical Controller operating voltage 24 VAC for NXT / 24 VDC for NXT2 Input supply frequency 50 or 60 Hz (controller configuration dependent) Transformer voltage 24 VAC for NXT / 24 VDC for NXT2...

  • Page 16: Performance Flow Rate Characteristics

    Installer manual Fleck 3150 NXT/NXT2 - Description Performance flow rate characteristics The graph shows the pressure drop created by the valve itself at different flow rates. It allows predetermining the maximum flow rate going through the valve depending on the system settings (inlet pressure etc). It also allows to determine the valve pressure drop at a given flow rate, and therefore to evaluate the system pressure drop vs flow rate.

  • Page 17: Components Description And Location

    Installer manual Fleck 3150 NXT/NXT2 - Description Components description and location 3.4.1 With NXT controller and AC motor Meter Drain line Power head Outlet Micro-switches Brine valve Brine line AC motor Injector Inlet Display Regeneration button NXT controller Shift button...

  • Page 18: With Nxt Controller And Dc Motor

    Installer manual Fleck 3150 NXT/NXT2 - Description 3.4.2 With NXT controller and DC motor Info As of April 2019, NXT valves are supplied with 24 VDC motor. This motor is equipped with an AC-DC converter allowing it to be powered with 24 VAC or 24 VDC. Therefore, when used with NXT boards which require 24 VAC power supply and therefore send...

  • Page 19: With Nxt2 Controller And Dc Motor

    Installer manual Fleck 3150 NXT/NXT2 - Description 3.4.3 With NXT2 controller and DC motor Meter Drain line Outlet Power head AC to DC converter Micro-switches Brine line Brine valve DC motor Injector Inlet NXT2 controller Status LED Piston Camshaft Display...

  • Page 20: System Regeneration Cycle

    Installer manual Fleck 3150 NXT/NXT2 - Description System regeneration cycle Info This valve allows to do filtration, down flow and up flow regenerations. 3.5.1 DF regeneration cycle (5-cycles operation) Service — normal use Untreated water is directed down through the resin bed and up through the riser tube.
  • Page 21 Installer manual Fleck 3150 NXT/NXT2 - Description SERVICE NORMAL USE BACKWASH Outlet Inlet Outlet Inlet Drain Valve Valve BRINE DRAW & SLOW RINSE RAPID RINSE Outlet Inlet Outlet Inlet Drain Drain Valve Valve From brine tank BRINE TANK REFILL PAUSE & DELAY...

  • Page 22: Uf Regeneration Cycle (5-Cycles Operation)

    Installer manual Fleck 3150 NXT/NXT2 - Description 3.5.2 UF regeneration cycle (5-cycles operation) Service — normal use Untreated water is directed down through the resin bed and up through the riser tube. The hardness ions attach themselves to the resin and are removed from the raw water being exchanged on the resin beads by sodium ions.
  • Page 23 Installer manual Fleck 3150 NXT/NXT2 - Description PAUSE & DELAY BRINE DRAW & SLOW RINSE Outlet Inlet Outlet Inlet Drain Valve Valve From brine tank BACKWASH RAPID RINSE Outlet Inlet Outlet Inlet Drain Drain Valve Valve SERVICE BRINE TANK REFILL...

  • Page 24: Filter Cycle (3-Cycles Operation)

    Installer manual Fleck 3150 NXT/NXT2 - Description 3.5.3 Filter cycle (3-cycles operation) Service — normal use Untreated water is directed down through the filter media and up through the riser tube. The impurities are retained by the media. The water is filtered as it passes through the media.
  • Page 25 Installer manual Fleck 3150 NXT/NXT2 - Description SERVICE NORMAL USE BACKWASH Outlet Inlet Outlet Inlet Drain Valve Valve SERVICE RAPID RINSE NORMAL USE Outlet Inlet Outlet Inlet Drain Valve Valve Untreated water, with WBP piston only Ref. MKT-IM-010 / C - 18.10.2019...

  • Page 26: Injector Block Position For Df And Uf Configurations

    Installer manual Fleck 3150 NXT/NXT2 - Description Injector block position for DF and UF configurations 26 / 182 Ref. MKT-IM-010 / C - 18.10.2019...

  • Page 27: System Sizing

    Installer manual Fleck 3150 NXT/NXT2 - System sizing System sizing Recommendations 4.1.1 Injector/DLFC/BLFC-Valve configuration Brine Tank Resin Injector DLFC BLFC syst. Diameter volume [in] Color Color [gpm] [gpm] [gpm] 3150/ 283 - 424 Green Green 20.0 1800 284 - 425 25.0...

  • Page 28: Determining The Required Volume Of Resin

    Installer manual Fleck 3150 NXT/NXT2 - System sizing Service velocity Inlet water hardness °f °dH [bed volume per hour] [mg/l as CaCO °TH 8 - 40 <350 <35 <19.6 8 - 30 350 to 450 35 - 45 19.6 - 25.2 8 - 20 >450...

  • Page 29: Resin Exchange Capacity And Capacity Of The Unit

    Installer manual Fleck 3150 NXT/NXT2 - System sizing = Fs × BV with: service max service : service flow rate [m service max : service velocity [BV/h] service BV: bed volume of resin [m Knowing this required volume of resin, it is possible now to determine the needed tank.
  • Page 30 Installer manual Fleck 3150 NXT/NXT2 - System sizing 53.8 5.38 3.01 55.5 5.55 58.5 5.85 3.27 62.7 6.27 66.9 6.69 3.74 3.97 75.3 7.53 4.21 To calculate the system mass capacity: × C with: capacity resin resin ex : system mass capacity [g as CaCO...

  • Page 31: Valve Configuration

    Installer manual Fleck 3150 NXT/NXT2 - System sizing 4.2.4 Valve configuration Knowing the volume of resin, tank size and specifications of the resin, it is possible to determine the required valve configuration. The resin specification will give the backwash velocity, as well as the brine draw and slow rinse velocity that must be respected in order to ensure a proper regeneration of the unit.
  • Page 32 Installer manual Fleck 3150 NXT/NXT2 - System sizing Info Preprogrammed cycle times are only factory default programming that need to be adjusted to fit the system requirements. For cycle time calculation the valve configuration must be known, which depends on: •...
  • Page 33 Installer manual Fleck 3150 NXT/NXT2 - System sizing To calculate slow rinse duration: The volume of water to be used for slow rinse is given in the resin manufacturers specifications. Generally speaking, it is advised that between 2 and 4 BV of water is used to perform the slow rinse after brine draw.

  • Page 34: Salt Amount Definition

    Installer manual Fleck 3150 NXT/NXT2 - System sizing x BV / S with: Salt : Volume of water to be refill to prepare the brine [L] : Salt dosage per liter of resin [g/L] Salt BV: Bed volume [L] : 360g/L - Solubility of salt per liter of water...
  • Page 35 Installer manual Fleck 3150 NXT/NXT2 - System sizing INJECTOR 6 Total Rinse Draw Inlet pressure [bar] INJECTOR 7 Total Rinse Draw Inlet pressure [bar] INJECTOR 8 Total Rinse Draw Inlet pressure [bar] Ref. MKT-IM-010 / C - 18.10.2019 35 / 182...
  • Page 36 Installer manual Fleck 3150 NXT/NXT2 - System sizing INJECTOR 9 Total Draw Rinse Rinse Draw Inlet pressure [bar] INJECTOR 10 Total Rinse Draw Inlet pressure [bar] 36 / 182 Ref. MKT-IM-010 / C - 18.10.2019...

  • Page 37: Installation

    Installer manual Fleck 3150 NXT/NXT2 - Installation Installation Mandatory It is strictly forbidden for not qualified personal, to accede to system’s internal parts to perform any kind of technical action. Be sure to disconnect the electrical power, close the water inlet and depressurize the system before opening the front cover to access internal parts.

  • Page 38: Installation Environement

    Installer manual Fleck 3150 NXT/NXT2 - Installation Installation environement 5.3.1 General • Use only brine salts designed for water softening. Do not use ice melt, block, or rock salts; • keep the media tank in an upright position. Do not turn on its side, upside down, or drop it.

  • Page 39: Mechanical

    Installer manual Fleck 3150 NXT/NXT2 - Installation • make sure the controller power source is plugged in; • if the electrical cable is damaged, it is imperative that it is replaced by a qualified personnel. 5.3.4 Mechanical • Do not use petroleum-based lubricants such as vaseline, oils, or hydrocarbon- based lubricants.

  • Page 40: Valve Connection To Piping

    Installer manual Fleck 3150 NXT/NXT2 - Installation • valve is designed for minor plumbing misalignments. Do not support weight of system on the plumbing; • be sure all soldered pipes are fully cooled before attaching plastic valve to the plumbing.
  • Page 41 Installer manual Fleck 3150 NXT/NXT2 - Installation • should the flexible piping connection be installed in vertical position, instead of compensating the elongation, it will create additional stresses on the valve & tank assembly. Therefore this is to be avoided;...

  • Page 42: Side-Mounted Valve Installation

    Installer manual Fleck 3150 NXT/NXT2 - Installation 5.5.2 Side-mounted valve installation Valid for location having a reduced height. Inlet Inlet shutoff Manual shutoff valve bypass Rubber expansion joint Outlet Fleck meter Unit 1 lead Outlet shutoff Drain line Support tripod Rubber expansion joint •...

  • Page 43: Block Diagram And Configuration Example

    Installer manual Fleck 3150 NXT/NXT2 - Installation Block diagram and configuration example Block diagram Pressure gauge Main inlet User’s line Check valve to prevent water harm Filter cartridge By-pass Pressure regulator Meter Suggested options Mixing device Can be integrated in the...

  • Page 44: System Types

    Installer manual Fleck 3150 NXT/NXT2 - Installation Side mounted configuration example Valve 3150 NXT Upper distributor A-2742-FU SBV 28182 Side mounted adapter 18023 Tank C-4278-F7 Upper distributor A-2742-FL Air check 18979 System types Info For all multiple tank systems #5 and #6, NBP version valves must be used.

  • Page 45: Single Valve (System #4)

    Installer manual Fleck 3150 NXT/NXT2 - Installation Remote regen start: The controller initiates the regeneration when an external dry signal is acquired on the S2 terminal (see Electrical connections [}Page 52], signal must last at least the programmed signal duration).

  • Page 46: Multiple Valves, Parallel Series Regeneration System (System #6)

    Installer manual Fleck 3150 NXT/NXT2 - Installation Inlet Outlet Valve Tank Check valve Meter 5.7.3 Multiple valves, parallel series regeneration system (System #6) This system type may be used to build systems from 2 to 4 valves for NXT controller, 2 to 8 valves forNXT2. Only One water meter is required for the whole system.

  • Page 47: Duplex Alternating Delayed System (System #8) (Nxt2 Only)

    Installer manual Fleck 3150 NXT/NXT2 - Installation During normal operation, the controller of each valve displays the time of day and the remaining volume. The remaining volume displayed drops with water consumption to reach zero. When this happens, the regeneration starts immediately. The valve in service sends a signal to the valve in standby that goes in service.

  • Page 48: Multiple Valves, System On-Demand (System #14)

    Installer manual Fleck 3150 NXT/NXT2 - Installation is complete, the regenerated unit will enter in standby. Standby on each tank is controlled by the drive output terminals (24 VAC or 24 VDC, see UDM on Electrical connections [}Page 52]) on the NXT/NXT2 circuit board.
  • Page 49 Installer manual Fleck 3150 NXT/NXT2 - Installation Inlet Outlet Valve Tank Check valve First trip Service Stand-By Stand-By point (primary Meter tank) Total flow rate is split between two meters The flow rate demand decreases below the first trip point. The tank returns to standby.
  • Page 50 Installer manual Fleck 3150 NXT/NXT2 - Installation Inlet Outlet Valve Check valve Tank Service Service Service Stand-By Meter Total flow rate is split between three meters The third tank returns to standby as demand decreases and returns below the second trip point.
  • Page 51 Installer manual Fleck 3150 NXT/NXT2 - Installation 5.7.7.2 System operation in regeneration The primary tank regenerates when its remaining volume becomes zero. The next tank with the least remaining volume becomes the new primary tank. The tank with the next least volume remaining will be the first to be activated when the flow rate reach the programmed trip point.

  • Page 52: Electrical Connections

    Installer manual Fleck 3150 NXT/NXT2 - Installation Electrical connections CMN: Common STRT: Remote regen start Flow meter Solenoid valve GND: Ground Sw1: Upper piston switch HCAM: Upper piston cam Sw2: Brine valve switch LCK: Remote regen lock Sw3: Lower piston switch...

  • Page 53: Nxt Controller Connections

    Installer manual Fleck 3150 NXT/NXT2 - Installation 5.8.1 NXT controller connections Ref. MKT-IM-010 / C - 18.10.2019 53 / 182...

  • Page 54: Nxt2 Controller Connections

    Installer manual Fleck 3150 NXT/NXT2 - Installation 5.8.2 NXT2 controller connections CAUTION Do not connect 24V (AC or DC) power supply on the Lower piston switch connector P17, as this would immediately and irreversibly damage the electronic board. 54 / 182...

  • Page 55: Nxt Controller Connections For Multiple Valves

    Installer manual Fleck 3150 NXT/NXT2 - Installation 5.8.3 NXT controller connections for multiple valves 2 controllers NXT Duplex system #5, #6, #7, #9 & #14 3 controllers NXT Triplex system #5, #6, #9 & #14 4 controllers NXT Quadriplex system #5, #6, #9 & #14...

  • Page 56: Nxt2 Controller Connections For Multiple Valves

    Installer manual Fleck 3150 NXT/NXT2 - Installation 5.8.4 NXT2 controller connections for multiple valves Mandatory Use CAT5 (with RJ45 connector) or better twisted pair cables with a maximum length of 30 meters. 2 controllers NXT2 Duplex system #5, #6, #7, #8, #9 & #14 3 controllers NXT2 Triplex system #5, #6, #9 &...

  • Page 57: Bypassing

    Installer manual Fleck 3150 NXT/NXT2 - Installation Bypassing A bypass valve system should be installed on all water conditioning systems. Bypass valves isolate the softener from the water system and allow unconditioned water to be used. Service or routine maintenance procedures may also require that the system is bypassed.

  • Page 58: Overflow Line Connection

    Installer manual Fleck 3150 NXT/NXT2 - Installation Secure the end of the drain line to prevent it from moving. Info Waste connections or the drain outlet shall be designed and constructed to provide connection to the sanitary waste system through an air-gap of 2 pipe diameters or 100.6 mm (4"), whichever is larger.

  • Page 59: Brine Line Connection

    Installer manual Fleck 3150 NXT/NXT2 - Installation Overflow fitting Drain tubing Secure hose in place Air gap Drain CAUTION Floor drain is always recommended to avoid flooding in case of overflow. 5.12 Brine line connection Mandatory Brine line with 1600/1650 brine valve: 3/8'' semi rigid piping.

  • Page 60: Programming

    Installer manual Fleck 3150 NXT/NXT2 - Programming Programming NXT controller 6.1.1 Display 6.1.1.1 During service 1. System type • #4: single valve; • #5:Multiple valves, parallel interlock system, 2 to 4 valves; • #6: Multiple valves, parallel series regeneration system, 2 to 4 valves;...
  • Page 61 Installer manual Fleck 3150 NXT/NXT2 - Programming 6. Operating • remaining volume in volumetric mode; mode • remaining days before regeneration in timeclock mode. 6.1.2 Commands Info At any time, press D to return to the home screen without saving.
  • Page 62 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.4.1 Basic programming mode chart Parameter Options Definition Note LANGUAGE ENGLISH English FRANCAIS French DEUTSCH German ITALIANO Italian ESPANOL Spanish FEED WATER 1 to 1’999 Milligram CaCO This screen will only display on HARDNESS the lead unit for system types 6 & 7.
  • Page 63 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.4.4 Regeneration days override Set the maximum number of days that the valve is in service without regenerating, regardless from the volume of water used. Info For a timeclock valve, this value must be set. For metered valves, calendar override parameter would trigger a regeneration only if the volumetric control did not start a regeneration before calendar override period elapsed.
  • Page 64 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.5 Master programming mode Info As soon as programming mode is entered, all parameters can be displayed or set to suit the needs. Depending on the current programming, some functions will not be displayed or will not be changeable.
  • Page 65 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note REGEN TYPE TIME CLK Time clock delayed System 4 only. DELAYED (default) METER All system types. IMMEDIAT MTR DLY Metered delayed fixed Systems 4 & 6 only. FIX RSV...
  • Page 66 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note TRIP POINT 2 1 to 3997 This screen will only display for system 14 and will only appear TRIP DELAY 2 30 to 99 Second with the system sized to 3 or 4 on (30 seconds default)
  • Page 67 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note CPO AUX 1 to 9’999 Activate the relay output during a RELAY service based upon the volume of VOLUME treated water. Relay is activated for a set time after every set...
  • Page 68 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.5.4 System type Select the system in which the valve(s) operate(s). Options: • 4: single valve; • 5: multiple valves, parallel interlock system; • 6: multiple valves, parallel series regeneration system; • 7: duplex alternating immediate system;...
  • Page 69 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set the valve position with Example: Valve #1 (master). ð Default setting: valve 2 address #2. b) Press to validate the selection and advance to the next parameter. Example: Valve #2. 6.1.5.6 System size Set the number of valves to be connected (2 to 4 valves) in the system.
  • Page 70 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.5.8 Valve type Select which valve is being used with the NXT. Options: • 2750; • 2850; • 2900/2910; • 3150; • 3900. a) Set valve type at 3150 with ð Default setting: 2750...
  • Page 71 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set the remote controller with Without remote controller. ð Can be adjusted from OFF to 01:39:00. b) Press to validate the selection and advance to the next parameter. With remote controller and 1 minute contact programmed.
  • Page 72 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set the safety coefficient with No safety factor programmed. ð Can be adjusted from 0 to 50%. b) Press to validate the selection and advance to the next parameter. 6.1.5.14 Inlet water hardness...
  • Page 73 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set the trip point 2 flow rate with ð Can be adjusted from trip point 1+1 to 3998 l/min. b) Press to validate the selection and advance to the next parameter. c) Set the trip point 2 delay with ð...
  • Page 74 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.5.17 Regeneration start time Set the time for regeneration start. Info It must be set when the valve is in timeclock mode or with a calendar override. a) Adjust the time of regeneration with Regeneration at 2:00 am.
  • Page 75 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.5.19 Auxiliary relay/Chemical pump Mandatory The system can’t be set with auxiliary relay and chemical pump at the same time. Only one option can be used. Auxiliary relay Set the relay output during regeneration.
  • Page 76 Installer manual Fleck 3150 NXT/NXT2 - Programming Chemical pump Activate the relay output during the service based upon the volume of treated water. Info Only visible in metered systems. Info This parameter has two steps. The first one determines the volume which activates the relay.
  • Page 77 Installer manual Fleck 3150 NXT/NXT2 - Programming Generic meter Info Only visible if "generic" was selected in flow meter selection. Set the generic meter. Info This parameter has two settings. The first display is to enter the maximum flow rate of the water meter.
  • Page 78 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.6 Diagnostic Info Depending on current settings, some displays cannot be viewed. Info There is no time limit on the displays in the Diagnostic mode. 6.1.6.1 Commands a) Press D to enter the Diagnostic mode.
  • Page 79 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.6.5 Hours between last two regenerations Info Shows the number of hours between the last two regenerations, which indicates the duration of the last service cycle. 6.1.6.6 Hours since last regeneration Info Shows the number of hours since the last regeneration, indicating the duration of the current service cycle.
  • Page 80 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.1.6.9 Software version Info Shows the version of the software used by the controllers. Mandatory In case of use of multiple valves system, verify the controller’s software compatibility. 6.1.7 Resetting the controller Mandatory Once this operation completed, it is necessary to check all programming steps.
  • Page 81 Installer manual Fleck 3150 NXT/NXT2 - Programming NXT2 Controller 6.2.1 Display 6.2.1.1 During service 1. System type • #4: Single valve; • #5: Multiple valves, parallel interlock system, 2 to 8 valves; • #6: Multiple valves, parallel series regeneration system, 2 to 8 valves;...
  • Page 82 Installer manual Fleck 3150 NXT/NXT2 - Programming 3. Valve status • Initializing: after a power failure or a change in the programming, the controllers initializes for approximately 30 seconds; • Lock windows: the controller has acquired the lockout windows; • Lock remote: the controller has acquired the lockout remote;...
  • Page 83 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.2 Commands 6.2.2.1 Menu commands Info At any time, press to return to previous screen without saving. Info Menus are displayed in a defined and incremental order. Info Editable digit is marked by two triangles (Cursor).
  • Page 84 Installer manual Fleck 3150 NXT/NXT2 - Programming • Access to master programming menu 6.2.3 Time of day menu Mandatory In multiple valve systems, set the time of day on the lead valve (#1). Info The time of day will be automatically updated on the other valves in the system within 10 seconds.
  • Page 85 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set the day of the month with b) Press to validate the selection and advance to the next parameter. 6.2.4 Basic programming Info Menus are displayed in a defined and incremental order. Depending of selected system or regeneration type, some of this parameters may not be visible.
  • Page 86 Installer manual Fleck 3150 NXT/NXT2 - Programming Info For a timeclock valve, this value must be set. For metered valves, calendar override parameter would trigger a regeneration only if the volumetric control did not start a regeneration before calendar override period elapsed. Each volumetric regeneration happening reset the calendar override delay.
  • Page 87 Installer manual Fleck 3150 NXT/NXT2 - Programming Info This parameter is visible only in "Softener meter immediate/delayed " mode a) Adjust the volume with and . b) Press to validate the selection and advance to the next parameter. 6.2.4.6 Push settings This parameter allows to push and copy settings from the master unit to all other connected units.
  • Page 88 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note LANGUAGE ENGLISH English (default) FRANCAIS French DEUTSCH German ITALIANO Italian ESPANOL Spanish NEDERLAN Dutch PORTUGUE Portuguese ASSISTANCE 12 characters maximum. NAME 1 ASSISTANCE NAME 2 ASSISTANCE 14 characters maximum. PHONE SYSTEM TYPE Single unit (default) 1 unit.
  • Page 89 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note VALVE 2510 Valve type. 2750 (default) 2850 2900 3150 3900 2815 REGEN. FLOW DOWN Down flow softener FLOW (default) UP FLOW Up flow softener FILTER Filter REGEN. TYPE TIME Time clock (default) System 4 and 6 only.
  • Page 90 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note HARDNESS 1 to 1999 Gram as CaCO Those screens will only display equivalent if hardness when regeneration type selected unit is mg/L is softener meter immediate or °FTH if hardness unit delayed.
  • Page 91 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note DAY OF WEEK Sunday (default) This screen will only display when regeneration type selected Monday is day of week; Tuesday Activate or de-activate for each Wednesday position (  = deactivated;...
  • Page 92 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note TANK REFILL 0 to 240 Minute Regenerant tank refill. This screen will not be displayed for filter systems. PAUSE 0 to 240 Minute This screen will not be displayed for filter systems.
  • Page 93 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note AUXILIARY 1 STANDBY Activates relay from beginning of regeneration and during standby phase. (default) ALARM Any alarm or error detected by BASED the controller will start signal output from Auxiliary relay#1.
  • Page 94 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note AUX. 1: TIME Minute Only displayed if “Time based” is BASED - END chosen for auxiliary 1 and START From start TIME #2 TIME #2 ON; time #2 + 1 minu Range depends on Start and end te until the time #1 values.
  • Page 95 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note AUX. 2: CYCLE Service position Only displayed if “Cycle based” BASED is chosen for auxiliary 2; Backwash position Activate or de-activate for each Draw and slow rinse position position (  = deactivated;...
  • Page 96 Installer manual Fleck 3150 NXT/NXT2 - Programming Parameter Options Definition Note AUX. 2: 1 to 7200 Second Only displayed if “volume based” VOLUME BASED is chosen for auxiliary 1; - DURATION Volume range depend on capacity; Even if maximum theoretical programmable value is 9999 the controller will take 7200 as duration.
  • Page 97 Installer manual Fleck 3150 NXT/NXT2 - Programming • English; • French; • German; • Italian; • Spanish; • Dutch; • Portuguese. a) Select the system type with b) Press to validate the selection and advance to the next parameter. 6.2.5.5 Assistance name 1 and 2 Edit names of assistance.
  • Page 98 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Edit assistance phone using and ; ð Assistance phone is empty by default; ð Each character can be chose from 1 to 9 or stay empty; b) Press to validate the selection and advance to the next parameter.
  • Page 99 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.5.9 Trip points setting Set the flow rate and switching service and standby duration. Info Only visible in system 14. Info Visible only on master valve, identified by on the controller screen. Info Depending on the number of tank used in the system, there might up to 7 trip point to...
  • Page 100 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set valve type at 3150 with b) Default setting: 2750; c) Press to validate the selection and advance to the next parameter. 6.2.5.11 Regeneration flow Set the direction of flow during the brine draw cycle for softener, or set filter.
  • Page 101 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set regeneration type with ð Default regen. type: time clock; b) Press to validate the selection and advance to the next parameter. 6.2.5.13 Units Set the unit system to be used. Options: •...
  • Page 102 Installer manual Fleck 3150 NXT/NXT2 - Programming • °FTH: French; • °EH: English. a) Set hardness unit with ð Default metric hardness unit: mg/L; b) Press to validate the selection and advance to the next parameter. 6.2.5.16 Capacity Set the capacity of the tank where the valve is installed.
  • Page 103 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set hardness with ð Can be adjusted from: ð 1 – 1999 mg/l; ð 1- 199 °F; ð 1 - 112.0 °dH; ð 1 - 140.2 °eH. ð Any value programmed above the maximum value for each unit will be discarded and considered as the maximum above mentioned value for the relevant unit.
  • Page 104 Installer manual Fleck 3150 NXT/NXT2 - Programming No safety factor a) Set the safety coefficient with and ; programmed. ð Can be adjusted from 0 to 50%; ð Any value programmed above the maximum value will be discarded and considered as the maximum above mentioned value.
  • Page 105 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.5.20 Remote signal duration Set remote signal duration. Info The availability depends on remote regeneration option programmed in the previous step. Info The contact will close after a preset signal duration. When the contact closes, remote regeneration signal is acquired and a regeneration will start (immediate or delayed) as programmed in Remote regeneration [}Page 104] .
  • Page 106 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.5.22 Day override/time driven Set the maximum number of days between two regenerations regardless from any other regeneration triggering type that could be programmed. Info For a timeclock valve, this value must be set as regeneration period in hours or days.
  • Page 107 Installer manual Fleck 3150 NXT/NXT2 - Programming Info Lock Window prevents the unit from regenerating during a specified time frame. Two lock windows are available (Lock Window #1 and Lock Window #2). Mandatory Before deactivating lock window #1, you must deactivate lock window #2 first, otherwise lock window #2 will remain active but not visible anymore in the...
  • Page 108 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Enable lock window with Lock window #2 activated. ð Default setting: off; b) Press to validate the selection and advance to the next parameter. Lock window #2 starts at c) Set lock start time with 13:00.
  • Page 109 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Adjust the cycle time with 1. Backwash: 10 min. ð Can be adjusted from: 0 to 240 minutes; b) Press to validate the selection and advance to the 2. Draw: 60 min. next parameter; c) Repeat for each cycle.
  • Page 110 Installer manual Fleck 3150 NXT/NXT2 - Programming Generic meter Set the generic meter settings. Info Only visible if "generic" was selected as meter type in the previous step. Info This parameter has two settings. First enter the number of pulses per 1 unit of volume, then the maximum expected flow rate.
  • Page 111 Installer manual Fleck 3150 NXT/NXT2 - Programming • off. a) Set continuous flow on with Continuous flow detect activated. b) Default setting: off; c) Press to validate the selection and advance to the next parameter; Continuous flow detect - d) Adjust flow rate with and ;...
  • Page 112 Installer manual Fleck 3150 NXT/NXT2 - Programming Cycle based Set the cycle based relay output during regeneration. Info Only visible if "cycle based" was selected as auxiliary in the previous step. a) Choose the options of relay with Activated during selected cycle step.
  • Page 113 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Set the relay Start time #2 with Activated 12 minutes after the regeneration b) Can be adjusted from: end time #1 +1 to the total started. regeneration duration minus 1 minute; TIME BASED - START...
  • Page 114 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.5.29 Push settings Select the desired Master Programming settings on one unit then push the same settings to all other connected units. Info Available only for multi-valves systems. Info The ability to transmit settings from one unit to all other connected units. After push settings are complete, you may still make unique changes to individual units.
  • Page 115 Installer manual Fleck 3150 NXT/NXT2 - Programming Info Lock Settings prevents unexpected access to master programming. Info Once lock settings option is activated, the controller returns to normal service display. The next time accessing the menu, the controller will call for either a password, or will grant access to menu only if programmed condition are fulfilled.
  • Page 116 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.6.1 Commands a) Press and hold to enter the Diagnostic mode. b) Press to see the next data group or press to return to previous data group. c) Press and hold to exit the Diagnostic mode at any time.
  • Page 117 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.6.6 Use since regeneration Info Shows the volume at the outlet since last regeneration 6.2.6.7 Valve address Info Shows the position of the valve in a multiple valve system. 6.2.6.8 Last regeneration Info Shows the number of hours since the last regeneration, indicating the duration of the current service cycle.
  • Page 118 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.6.11 Regeneration interval Info Shows duration between regenerations. 6.2.6.12 Last settings change Info Shows when the last settings change occurred. 6.2.6.13 Error log Info The last 20 error or alarm events are registered showing time and date of occurrences.
  • Page 119 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.6.16 Monday average daily usage Info Shows average water consumption on Monday. 6.2.6.17 Monday- daily usage Info Shows water consumption for the last 20 Monday. 6.2.6.18 Tuesday average daily usage Info Shows average water consumption on Tuesday.
  • Page 120 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.6.21 Wednesday- daily usage Info Shows water consumption for the last 20 Wednesday. 6.2.6.22 Thursday average daily usage Info Shows average water consumption on Thursday. 6.2.6.23 Thursday- daily usage Info Shows water consumption for the last 20 Thursday.
  • Page 121 Installer manual Fleck 3150 NXT/NXT2 - Programming 6.2.6.26 Saturday average daily usage Info Shows average water consumption on Saturday. 6.2.6.27 Saturday- daily usage Info Shows water consumption for the last 20 Saturday. 6.2.7 Resetting the controller Mandatory Once you have completed this operation, it is necessary to check all programming steps.
  • Page 122 Installer manual Fleck 3150 NXT/NXT2 - Programming a) Power on the unit; b) WhenPentair’s logo appears, press and hold ; ð The Reset menu appears; c) Select reset option with ð Default setting: reset to factory defaults; d) Press to validate the selection.
  • Page 123 Installer manual Fleck 3150 NXT/NXT2 - Commissioning Commissioning Info This chapter is available for standard regeneration types. Contact your supplier if the actual regeneration is not standard and if you need assistance. Water filling, draining and waterproofness inspection 7.1.1 Activating a single valve system (System #4) a) With the bypass still in Bypass position (inlet and outlet of the valve closed), plug in the NXT/NXT2 controller to the power source.
  • Page 124 Installer manual Fleck 3150 NXT/NXT2 - Commissioning l) With the brine tank completely refilled and full of salt, adjust the safety brine valve in the brine well. Make sure the overflow elbow is installed above the float level and the discharge point.
  • Page 125 Installer manual Fleck 3150 NXT/NXT2 - Commissioning Depending on the conditions of use, the softener type, the type of ion exchanger and the disinfectant available, a choice can be made among the following methods. 7.2.2 Sodium or calcium hypochlorite These materials are satisfactory for use with polystyrene resins, synthetic gel zeolite, greensand and bentonites.
  • Page 126 Installer manual Fleck 3150 NXT/NXT2 - Operation Operation Display 8.1.1 NXT controller 8.1.1.1 During service • Single valve in service in timeclock mode: • single valve in service in volume immediate or delayed mode: • lead valve in regeneration queued in interlock system: •...
  • Page 127 Installer manual Fleck 3150 NXT/NXT2 - Operation • lead valve in regeneration queued in interlock system: • window lock activated in serial regeneration system: • remote lock activated in serial regeneration system: 8.1.2.2 During regeneration During regeneration the display shows the cycle number and the time remaining for that cycle.
  • Page 128 Installer manual Fleck 3150 NXT/NXT2 - Operation • the timer advance to regeneration cycle step #5: During transition to cycle: • cycle step #5, time remaining 15 min: Once in position: 8.1.3 LED status Blue → the unit is in service and no errors detected;...
  • Page 129 Installer manual Fleck 3150 NXT/NXT2 - Operation Info To cancel: press (for NXT) or (for NXT2) again; For NXT: The blue LED stop flashing and the letters SRV take place on the valve status; For NXT2: The blue LED and the symbol stop flashing.
  • Page 130 Installer manual Fleck 3150 NXT/NXT2 - Maintenance Maintenance Mandatory Cleaning and maintenance shall take place at regular intervals in order to guarantee the proper functioning of the complete system, and be documented in the Maintenance chapter in the User Guide document.
  • Page 131 Installer manual Fleck 3150 NXT/NXT2 - Maintenance f) If pressure gauges are installed before and after softening/filtering system, verify and record static and dynamic pressure, reporting pressure drop. Verify that inlet pressure respects valve and softening/filtering system limits. Verify that pressure drop stay stable year on year, adapt backwash duration if required.
  • Page 132 Installer manual Fleck 3150 NXT/NXT2 - Maintenance Recommended maintenance plan 9.2.1 Valve used for softening Items 1 year 2 year 3 year 4 year 5 year Injector & Clean Clean Clean Clean Clean/ filter replace if necessary BLFC*** Clean Clean...
  • Page 133 Installer manual Fleck 3150 NXT/NXT2 - Maintenance Items 1 year 2 year 3 year 4 year 5 year Meter(s)* Check and Check and Check and Check and Replace (if present) Clean Clean Clean Clean Meter Check Check Check Check Replace cable(s)* (if present)
  • Page 134 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.2.2 Valve used for filtration Items 1 year 2 year 3 year 4 year 5 year DLFC*** Clean Clean Clean Clean Clean/ replace if necessary Piston* Replace Replace Replace Replace Replace Seals &...
  • Page 135 Installer manual Fleck 3150 NXT/NXT2 - Maintenance Recommendations 9.3.1 Use original spare parts CAUTION To ensure correct operation and safety of the device, only use original spare parts and accessories recommended by the manufacturer. Usage of non-genuine spare parts void all warranties.
  • Page 136 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.2 Power head motor replacement 9.4.2.1 Valve with NXT controller Info As the DC motor is equipped with an AC to DC converter, AC and DC motors can be used with the NXT controller.
  • Page 137 Installer manual Fleck 3150 NXT/NXT2 - Maintenance AC motor DC motor Ref. MKT-IM-010 / C - 18.10.2019 137 / 182...
  • Page 138 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.2.2 Valve with NXT2 controller CAUTION Use only DC motor with NXT2 controller. a) Using a flat screwdriver, unscrew (1) and open the cover (2). b) Disconnect the motor (8). c) Remove the micro-switches (9), see Micro-switches replacement [}Page 145].
  • Page 139 Installer manual Fleck 3150 NXT/NXT2 - Maintenance DC motor Ref. MKT-IM-010 / C - 18.10.2019 139 / 182...
  • Page 140 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.3 NXT to NXT2 controller upgrade Mandatory As NXT2 controller functions only with DC motors, in case of NXT to NXT2 controller upgrade, the AC motor must be changed for a DC motor.
  • Page 141 Installer manual Fleck 3150 NXT/NXT2 - Maintenance AC motor DC motor Ref. MKT-IM-010 / C - 18.10.2019 141 / 182...
  • Page 142 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.4 NXT2 controller replacement a) Using a flat screwdriver, unscrew (1) and open the cover (2). b) Press on the clips (3) and remove the controller (4). c) Disconnect the controller (4). d) Connect the new NXT2 controller (5), see NXT2 controller connections [}Page 54].
  • Page 143 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.5 Power head, piston and/or seal and spacer kit disassembly/replacement a) Using a flat screwdriver, unscrew (1) and open the cover (2). b) Using pliers, remove the clip (6) and the connecting pin (7). c) Using a 32 mm wrench, unscrew (3).
  • Page 144 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 144 / 182 Ref. MKT-IM-010 / C - 18.10.2019...
  • Page 145 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.6 Micro-switches replacement a) Using a flat screwdriver, unscrew (1) and open the cover (2). b) Using a Phillips screwdriver, unscrew (3) and extract the protection plates (4) and the micro-switches (5). c) Reverse above procedure steps to rebuild.
  • Page 146 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.7 Cams replacement a) Using a flat screwdriver, unscrew (1) and open the cover (2). b) Remove the micro-switches (3), see Micro-switches replacement [}Page 145]. c) Disconnect the motor (4). d) Using a Philips screwdriver, open the controller (7).
  • Page 147 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.8 Injector throat and washer cleaning a) Using a 4 mm Allen wrench, unscrew (1). b) Using a 24 mm wrench, remove the tube (10). c) Using a 4 mm Allen wrench, unscrew (11) and remove the connector (9), the o- ring (8) and the injector nozzle (7).
  • Page 148 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 148 / 182 Ref. MKT-IM-010 / C - 18.10.2019...
  • Page 149 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.9 BLFC cleaning a) Using a 34 mm wrench, remove the flow control housing (1) from the valve. b) Using pliers, remove the retaining ring (6), the flow control retainer (5), the washer holder (3) and the washer (4).
  • Page 150 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.10 DLFC cleaning a) Using a 5 mm Allen wrench, unscrew (1) and remove the housing (2). b) Remove the cover plate (4) and the seat (6). c) Remove the washers (5) from the seat (6).
  • Page 151 Installer manual Fleck 3150 NXT/NXT2 - Maintenance 9.4.11 Valve on tank assembly a) Lubricate the Oring with approved silicone grease. b) Spin the valve (1) onto the tank (2), ensuring the threads are not cross-threaded. c) Rotate the valve (1) clockwise and freely, without using force until it comes to a stop.
  • Page 152 Installer manual Fleck 3150 NXT/NXT2 - Troubleshooting Troubleshooting 10.1 Error detection Info It can take up to 30 seconds before an error can be detected and displayed. Mandatory All the errors must be displayed on each controller before they can be corrected.
  • Page 153 Installer manual Fleck 3150 NXT/NXT2 - Troubleshooting Problem Cause Solution Hard water By-pass valve is open. Close by-pass valve. No salt is in brine tank. Add salt to brine tank and maintain salt level above water level. Injector screen plugged.
  • Page 154 Installer manual Fleck 3150 NXT/NXT2 - Troubleshooting Problem Cause Solution Excessive water in Plugged drain line flow Clean flow control. brine tank control. Plugged injector system. Clean injector and screen. Controller is not cycling. Replace controller. Foreign material in brine Replace brine valve seat and valve.
  • Page 155 Installer manual Fleck 3150 NXT/NXT2 - Troubleshooting • valve address doubled; • power failure; • system size: ex. programmed for 4 units, but there are only 2 units; • units of measure do not correspond between the different valves of the system;...
  • Page 156 Installer manual Fleck 3150 NXT/NXT2 - Troubleshooting 10.3.2 NXT2 controller • Number of NXT2 detected does not match selected system type in Master Programming; – Push correct valve settings in Master Settings and check wiring. • the motor is on but no encoder pulses are detected or CAM Switches change state within a given duration;...
  • Page 157 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Spare parts and options 11.1 Valve parts list Item Part number Description Packaging quantity 26745-4 Brine valve 1800 assy 3900 down flow 26745-5 Brine valve 1800 assy 3900 down flow...
  • Page 158 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity 16387 Valve body plug ½" NPT 3150/3900 25580-ALL DLFC kit 2" 3150 30 to 100 gpm BU28516-01 Valve body assy 3150 WBP BU28516-02 Valve body assy 3150 NBP...
  • Page 159 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.2 Power head 3150 parts list Item Part number Description Packaging quantity 26637 Cover assy 3150 upper grey 26260 Transformer 24 VAC, 60 VA 44415 Transformer 24 VDC 17967 Liquid tight 25352 Guide cable & cable assy 3150 2"...
  • Page 160 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity 10218SP Microswitch 10872SP Screw motor mounting 17797 Bracket switch mounting 29212 Drive motor assy 3150 24 VDC 28409-01 Drive motor assy 3150 24 VAC 28409-03 Drive Motor assy 3150/3900 230 VAC...
  • Page 161 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.3 1800 injector parts list Item Part number Description Packaging quantity 18702 Fitting, tube 1/2 NPT 5/8 19677SP Screw 16341-01 Inj cover 1800 15246-01SP O-ring - 560CD 15128-04SP Injector nozzle # 4 15128-05SP Injector nozzle # 5 Ref.
  • Page 162 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity 15128-06SP Injector nozzle # 6 15128-07SP Injector nozzle # 7 15128-08SP Injector nozzle # 8 15128-09SP Injector nozzle # 9 15128-10SP Injector nozzle # 10...
  • Page 163 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity 12087SP Washer, flow 2.0 gpm 12089SP Washer, flow 3.0 gpm 12090SP Washer, flow 3.5 gpm 12092SP Washer, flow 5.0 gpm 12408SP Washer, flow 7.0 gpm 16529SP Washer, flow 10.0 gpm...
  • Page 164 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.5 DLFC parts list Item Part number Description Packaging quantity 25580-ALL 2" DLFC assy 3150/3900 (30-100 gpm) 25177 Screw 27913-21 2" Flow control housing - BSP 16650 Plate, DLFC cover 16529 Flow controller washer 10 gpm...
  • Page 165 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity 16804 O-ring BU28656 Label 11.6 Safety brine valves list Item Part number Description Packaging quantity 25453 SBV 2350 – without air check 28182 Union PVC female 1" to be glued - male 1" BSP 11.7...
  • Page 166 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.1 Thread 4", tank 21" to 36", TM, slots 0.2 mm Item Part number Description Packaging quantity A-2163-TM Distribution system assy, tanks 21" - 24" A-3063-TM Distribution system assy, tank 30"...
  • Page 167 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.2 Flanged 6", tank 21" to 36", TM, slots 0.2 mm Item Part number Description Packaging quantity A-TF21-063 Distribution system assy, tanks 21" - 24" A-TF30-063 Distribution system assy, tank 30"...
  • Page 168 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.3 Flanged 6", tank 42", TM, slots 0.2 mm Item Part number Description Packaging quantity A-TF42-063 Distribution system assy, tank 42" A-3100-14C Adapter A-PVC-063 Riser tube A-3050-91 Reducing bush AB-GC8-30 Reducing bush...
  • Page 169 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.4 Threaded 4", tank 21" to 36", SM, top distribution, elbow 63 mm, external glue connection Item Part number Description Packaging quantity A-2727-63 Top distribution system assy, slots 0.2 mm A-2727-65 Top distribution system assy, slots 0.5 mm...
  • Page 170 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.5 Threaded 4", tank 21" to 36", SM, bottom distribution, elbow 63 mm, external glue connection Item Part number Description Packaging quantity A-2821-63 Bottom distribution system assy, tanks 21" - 24", slots 0.2 mm...
  • Page 171 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity A-2693-C Elbow 11.7.6 Threaded 4", tank 21" to 36", SM, top distribution, straight 63 mm, external glue connection Item Part number Description Packaging quantity A-27UN-63 Top distribution system assy, slots 0.2 mm A-27UN-65 Top distribution system assy, slots 0.5 mm...
  • Page 172 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.7 Threaded 4", tank 21" to 36", SM, bottom distribution, straight 63 mm, external glue connection Item Part number Description Packaging quantity A-21UN-63 Bottom distribution system assy, tanks 21" - 24", slots 0.2 mm...
  • Page 173 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity A-2694-17 O-ring A-8200-63 Union nut A-8250-63 Collar A-2700-234 Adaptor 11.7.8 Flanged 6", tank 21" to 36", SM, top distribution, external flange 65 mm connection Item...
  • Page 174 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.9 Flanged 6", tank 21" to 36", SM, bottom distribution, external flange 65 mm connection Item Part number Description Packaging quantity A-2721-F6 Bottom distribution system assy, tanks 21" - 24", slots 0.2 mm A-2521-F6 Bottom distribution system assy, tanks 21"...
  • Page 175 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.10 Hot water, flanged 6", tank 42" to 63", SM, top and bottom distribution, external flange 80 mm connection, slots 0.2 mm Item Part number Description Packaging quantity A3-2742-FL Bottom distribution system assy, tank 42"...
  • Page 176 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.7.11 Hot water, flanged 6", tank 21" to 36", SM, top and bottom distribution, external flange 65 mm connection, slots 0.2 mm Item Part number Description Packaging quantity A3-2721-F6 Bottom distribution system assy, tanks 21" - 24"...
  • Page 177 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity BU28510 Air check 900 - 1m10 18980 Air check 900 HW 11.9 Meters parts list 11.9.1 Brass meters parts list Item Part number Description...
  • Page 178 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.9.2 Stainless steel meters parts list Item Part number Description Packaging quantity 29094 Meter assy SS 2" BSP Mechanical 75 m / Electronic 29095 Meter assy SS 2" BSP Mechanical 375 m 11.10...
  • Page 179 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options Item Part number Description Packaging quantity 19121-08 Meter cable SE/SXT 0.75 m 19121-09 Meter cable NT /NXT 2.5 m 19121-10 Meter cable NT /NXT 7.7 m 11.10.3 Stainless steel kit meter & Meter cables list...
  • Page 180 Installer manual Fleck 3150 NXT/NXT2 - Spare parts and options 11.12 Other components list Item Part number Description Packaging quantity BU61564-10 Mixing assy 1" Industrial 180 / 182 Ref. MKT-IM-010 / C - 18.10.2019...
  • Page 181 This will help to reduce the impact on the environment, health, safety and help to promote recycling. Pentair do not collect used product for recycling. Contact your local recycling center for more information.
  • Page 182 www.pentairaquaeurope.com...

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