Pentair FLECK 4600 SXT Installer Manual
  1. Manuals
  2. Brands
  3. Pentair Manuals
  4. Water Filtration Systems
  5. FLECK 4600 SXT
  6. Installer manual

Pentair FLECK 4600 SXT Installer Manual

Hide thumbs Also See for FLECK 4600 SXT:
Table of Contents

Advertisement

Quick Links

Download this manual
INSTALLER
MANUAL
FLECK
4600 SXT
WATER PURIFICATION
www.pentairaquaeurope.com

Advertisement

Table of Contents
loading

Related Manuals for Pentair FLECK 4600 SXT

Summary of Contents for Pentair FLECK 4600 SXT

  • Page 1 INSTALLER MANUAL FLECK 4600 SXT WATER PURIFICATION www.pentairaquaeurope.com...

  • Page 2: Table Of Contents

    Installer manual Fleck 4600 SXT - 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 4600 SXT - Table of Contents Recommended Injector/DLFC/BLFC-Valve configuration ......28 Sizing a softener (single unit) ..............28 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 4600 SXT - Table of Contents 6.5.2 Entering master programming mode..............6.5.3 Display format mode (DF) ................... 6.5.4 Regeneration flow (RF) ..................6.5.5 Regeneration control type (CT) ................6.5.6 Number of tanks (NT)..................6.5.7 Tank in service (TS) .....................
  • Page 5 Installer manual Fleck 4600 SXT - Table of Contents Maintenance ..................68 General system inspection................68 9.1.1 Water quality ....................... 9.1.2 Mechanical Checks ..................... 9.1.3 Regeneration test....................Recommended maintenance plan .............. 70 9.2.1 Valve used for softening..................9.2.2 Valve used for filtration ..................

  • Page 6: Generalities

    Installer manual Fleck 4600 SXT - 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. The original version of the document was written in English.

  • Page 7: Intended Use

    Installer manual Fleck 4600 SXT - Generalities Intended use The device is intended for domestic applications use only and it is purpose-built for water treatment. Abbreviations used Assy Assembly BLFC Brine Line Flow Controller Brine Valve Cold Water Down Flow...

  • Page 8: Available Certificates

    Page 83]. If the problem persists contact your supplier. Copyright and Trademarks All indicated Pentair trademarks and logos are property of Pentair. Third party registered and unregistered trademarks and logos are the property of their respective owners. © 2020 Pentair. All rights reserved.

  • Page 9: Limitation Of Liability

    Pentair Quality System EMEA products benefit, under specific conditions, from a manufacturer warranty that may be invoked by Pentair’s direct customers. Users should contact the vendor of this product for applicable conditions and in case of a potential warranty claim.

  • Page 10: Scan & Service Application

    Installer manual Fleck 4600 SXT - 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 with a smartphone gives an instantaneously access to all updated information related to the product, such as: •...

  • Page 11: Safety

    Installer manual Fleck 4600 SXT - Safety Safety Safety pictograms definition DANGER This combination of symbol and keyword indicates an imminently hazardous situation that will result in serious or fatal injury if not avoided. WARNING This combination of symbol and keyword indicates a potentially hazardous situation that can result in serious or fatal injury if not avoided.

  • Page 12: Serial Label Location

    Installer manual Fleck 4600 SXT - Safety Serial label location Model Part number Electrical rating Serial number Production date Production order Mandatory Ensure that the serial label and the safety labels on the device are completely legible and clean ! If necessary, replace them with new labels in the same positions.

  • Page 13: Material

    Installer manual Fleck 4600 SXT - Safety 2.3.2 Material The following points must be observed to ensure proper operation of the system and the safety of user: • be careful of high voltages present on the transformer (100 – 240 V);...

  • Page 14: Description

    Installer manual Fleck 4600 SXT - Description Description Technical specifications Design specifications/ratings Valve body Brass Rubber components EP or EPDM Weight (valve with controller) 2.5 kg Recommended operating pressure 1.4 - 8.6 bar Maximum inlet pressure 8.6 bar Hydrostatic test pressure 20 bar Water temperature 1 - 43°C...

  • Page 15: Performance Flow Rate Characteristics

    Installer manual Fleck 4600 SXT - Description Protection rating IP 22 Power supply 100 to 240 VAC, 50/60 Hz, 0.8 A, Class II Transient overvoltages Within the limits of category II Pollution Degree Temporary overvoltages must be limited in duration and in frequency. Environmental conditions •...

  • Page 16: Outline Drawing

    Installer manual Fleck 4600 SXT - Description Outline drawing 16 / 100 Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 17: Components Description And Location

    Installer manual Fleck 4600 SXT - Description Components description and location Drive cam Controller LCD screen Regen button Up button Down button Injector block Brine line *Meter Drain line Mixing device Outlet Inlet *Not included in case of timeclock Ref. MKT-IM-028 / C - 22.09.2020...
  • Page 18 Installer manual Fleck 4600 SXT - Description Motor Brine cam Brine valve Piston 18 / 100 Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 19: System Regeneration Cycle

    Installer manual Fleck 4600 SXT - Description System regeneration cycle Info This valve allows to do filtration and down flow regenerations. 3.5.1 Downflow 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 by being exchanged on the resin beads by sodium ions.
  • Page 20 Installer manual Fleck 4600 SXT - Description SERVICE NORMAL USE BACKWASH Outlet Inlet Outlet Inlet Drain Valve Valve SECOND BACKWASH BRINE DRAW & SLOW RINSE (Double backwash unit only) Outlet Inlet Outlet Inlet Drain Drain Valve Valve From brine tank...

  • Page 21: Upflow Regeneration Cycle (5-Cycles Operation)

    Installer manual Fleck 4600 SXT - Description 3.5.2 Upflow 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 against sodium ions.
  • Page 22 Installer manual Fleck 4600 SXT - Description SERVICE NORMAL USE 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 REFILL NORMAL USE...

  • Page 23: Filter Cycle (3-Cycles Operation)

    Installer manual Fleck 4600 SXT - 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 24 Installer manual Fleck 4600 SXT - 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 24 / 100 Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 25: Configurations For Softener And Filter

    Installer manual Fleck 4600 SXT - Description Configurations for softener and filter To configure the valve as softener or filter, the piston and the cycle cam must be set as shown below. 3.6.1 Softener Piston PN 27077-US Valve body with mixing device...

  • Page 26: Filter

    Installer manual Fleck 4600 SXT - Description 3.6.2 Filter Filter piston PN 27077-US Plugged BLFC and injector Valve body without mixing device PN 28451-10 Black single backwash drive cam PN 17438 26 / 100 Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 27: Options Available On The Valve

    Installer manual Fleck 4600 SXT - Description Options available on the valve Mixing device The valve can be equipped with a mixing device (1) whose function is to regulate the hardness of the water at the outlet. The mixing can be set from 0% to 50% of hard water (i.e. 0 turn = 0% of hard water with 100% of treated water and 1-½ turn = 50% of hard water with 50% of treated...

  • Page 28: System Sizing

    Installer manual Fleck 4600 SXT - System sizing System sizing Recommended Injector/DLFC/BLFC-Valve configuration Brine Tank Resin Injector DLFC BLFC syst. Diameter volume [in] Color Color [gpm] DF [gpm] UF [gpm] 4600/ 5 – 8 0.125 1600 9 – 14 0.25 1650 15 –...

  • Page 29: Determining The Required Volume Of Resin

    Installer manual Fleck 4600 SXT - System sizing Caution - material Risk of leakage due to unrespected service velocity ! Failure to respect the service velocity will lead to hardness leakage or even total softener inefficiency. Note that the water supply piping size may also be useful when estimating the nominal flow rate, since the size of the piping allows a maximum flow rate to pass.

  • Page 30: Resin Exchange Capacity And Capacity Of The Unit

    Installer manual Fleck 4600 SXT - System sizing 4.2.3 Resin exchange capacity and capacity of the unit The resin exchange capacity and capacity of the unit are two different things that should not be confused. The resin exchange capacity is the amount of Ca...

  • Page 31: Valve Configuration

    Installer manual Fleck 4600 SXT - System sizing To calculate the system mass capacity: × C with: capacity resin resin ex : system mass capacity [g as CaCO capacity : volume of resin [L] resin : resin exchange capacity [g/L...

  • Page 32: Cycle Time Calculation

    Installer manual Fleck 4600 SXT - System sizing The DLFC installed on the valve has to limit the backwash flow rate to the above calculated flow rate. To determine the injector size: The velocities to be respected for brine draw and slow rinse are given on the resin manufacturer specifications.
  • Page 33 Installer manual Fleck 4600 SXT - System sizing To calculate the backwash duration: = (N × BV) / Q with: backwash BVbw DLFC : backwash duration [min] backwash : number of bed volume for backwash BVbw BV: bed volume [L]...

  • Page 34: Salt Amount Definition

    Installer manual Fleck 4600 SXT - System sizing Depending on the valve type, the fast rinse flow rate is controlled by the DLFC or it has about the same flow rate as in service. The fast rinse velocity can be the same as the service velocity, and the volume of water to be used for the fast rinse is generally between 1 and 10 BV depending on the salt dosage.

  • Page 35: 1600 Injectors

    Installer manual Fleck 4600 SXT - System sizing 4.4.1 1600 injectors INJECTOR 0 Total Draw Rinse Rinse Draw Inlet pressure [bar] INJECTOR 1 Total Rinse Draw Inlet pressure [bar] INJECTOR 2 Total Rinse Draw Inlet pressure [bar] Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 36: 1650 Injectors

    Installer manual Fleck 4600 SXT - System sizing 4.4.2 1650 injectors INJECTOR 0 Total Rinse Draw Inlet pressure [bar] INJECTOR 1 Total Rinse Draw Inlet pressure [bar] INJECTOR 2 Total Rinse Draw Inlet pressure [bar] 36 / 100 Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 37: Installation

    Installer manual Fleck 4600 SXT - Installation Installation CAUTION Risk of injury due to electrical shock or pressurized elements ! It is strictly forbidden for not qualified personal, to accede to system’s internal parts to perform any kind of technical action.

  • Page 38: Water

    Installer manual Fleck 4600 SXT - Installation • keep the media tank in an upright position. Do not turn on its side, upside down, or drop it. Turning the tank upside down may cause media to enter the valve or might clog the upper screen;...

  • Page 39: Mechanical

    Installer manual Fleck 4600 SXT - Installation 5.3.4 Mechanical Caution - material Risk of damage due to wrong lubricant use ! Do not use petroleum-based lubricants such as vaseline, oils, or hydrocarbon-based lubricants. Use only approved silicone grease or soapy water ! •...

  • Page 40: Valve Connection To Piping

    Installer manual Fleck 4600 SXT - Installation Valve connection to piping The connections should be hand tightened using PTFE (plumber’s tape) on the threads if using the threaded connection type. In case of heat welding (metal type connection), the connections should not be made to the valve when soldering.
  • Page 41 Installer manual Fleck 4600 SXT - Installation • in any case, any failure caused by improper installations and/or piping connections may void the warranty of Pentair products; • in the same way, using lubricant* [ → Page 41] on the valve thread is not allowed and will void the warranty for the valve and tank.

  • Page 42: Block Diagram And Configuration Example

    Installer manual Fleck 4600 SXT - 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 43: Electrical Connections

    Installer manual Fleck 4600 SXT - Installation Electrical connections W1: Black W2: Red W3: Green W4: Yellow W5: Blue W6: Brown W7: Orange W8: Vioet W9: White C: Common NC: Normally closed NO: Normally open Transformer Info The microswitchs are connected on C and NC.

  • Page 44: Bypassing

    Installer manual Fleck 4600 SXT - 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 45 Installer manual Fleck 4600 SXT - Installation Caution - material Risk of damage due to over-force ! The drain line plastic elbow must always be hand-tighten without using the elbow as a lever. The drain plastic elbow is not designed to support the weight of the tube. The tube has to have its own support.

  • Page 46: Overflow Line Connection

    Installer manual Fleck 4600 SXT - Installation Air gap Drain 5.10 Overflow line connection In the event of a malfunction, the brine tank overflow fitting will direct “overflow” to the drain instead of spilling on the floor. This fitting should be on the side of the brine tank. Most brine tank manufacturers feature a pre-drilled hole for the tank overflow connector.

  • Page 47: Brine Line Connection

    Installer manual Fleck 4600 SXT - Installation 5.11 Brine line connection Mandatory The brine line must be built with 3/8'' semi rigid piping ! Caution - material Risk of malfunction due to the use of wrong equipment ! Flexible and semi-flexible hoses may shrink because of the vacuum during brine draw.

  • Page 48: Programming

    Installer manual Fleck 4600 SXT - Programming Programming Display 1. Service icon • Appears in service mode; • Flashes if a regeneration cycle has been queued. 2. Error / • Appears in case of error, see Troubleshooting [ → Page 83], or in Information icon diagnostic mode, see.Diagnostic [...
  • Page 49 Installer manual Fleck 4600 SXT - Programming 3. Parameter Master programming and diagnostic modes: display • C: Unit capacity; • CD: Current day; • CT: Regeneration control type; • DF: Display format; • Dn, n=1 to 7: Day of week;...

  • Page 50: Commands

    Installer manual Fleck 4600 SXT - Programming 8. Programming • Appears in programming modes. icon Commands Info Menus are displayed in a defined and incremental order. If none of the buttons are pushed for 5 minutes in the Programming mode, or if there is a power failure, the controller returns to Service mode without saving.

  • Page 51: Day Of Override (Do)

    Installer manual Fleck 4600 SXT - Programming 6.4.2 Day of override (DO) 1. Press simultaneously for 5 seconds to enter the menus sequence. 2. Select the number of days of override with 3. Press to validate the selection and advance to the next parameter.

  • Page 52: Master Programming Mode Chart

    Installer manual Fleck 4600 SXT - Programming 6.5.1 Master programming mode chart Parameter Options Definition Note Display format US units Metric units Regeneration dF1b Std DF single Standard for 9000 Twin valve flow backwash dF2b Std DF double backwash FLtr Filter To be used with standard piston only.
  • Page 53 Installer manual Fleck 4600 SXT - Programming Parameter Options Definition Note Fixed reserve 0 to 50 Only displayed for volumetric capacity regenerations and if set in reserve selection. Days override 0 to 99 Regeneration 00:00:00 to Hour Regeneration time will not appear...

  • Page 54: Entering Master Programming Mode

    Installer manual Fleck 4600 SXT - Programming 6.5.2 Entering master programming mode 1. Press and hold until the programming icon replaces the service icon and the parameter display reads TD. 2. Set the time to 12:01 PM with 3. Press to validate the selection and return to the service mode, or wait for 10 seconds.

  • Page 55: Number Of Tanks (Nt)

    Installer manual Fleck 4600 SXT - Programming 1. Press to select the regeneration control type. 2. Press to validate the selection and move to the next parameter. 6.5.6 Number of tanks (NT) Select the number of tanks. Options: • NT 1: single tank system;...

  • Page 56: Feedwater Hardness (H)

    Installer manual Fleck 4600 SXT - Programming Info The filter capacity parameter is only available if the regeneration flow has been programmed for filter. The filter capacity can be set from 0.1 to 9’999 x1’000 Ltr if DF = Ltr or from 1 to 9’999 -> 1 to 9’999 x1’000 grains if DF = GAL.

  • Page 57: Days Override (Do)

    Installer manual Fleck 4600 SXT - Programming 6.5.11.2 Reserve capacity (RC) Info This parameter is not shown if RS is set to SF. The fixed reserve capacity can be set up to a volume equivalent to 50% of the initial volumetric capacity.

  • Page 58: Day Of Week (Dn, N = 1 To 7)

    Installer manual Fleck 4600 SXT - Programming Info Setting a cycle step to 0 will cause the controller to skip that step during regeneration, but keeps the following steps available. The different regeneration cycles are listed in sequence based on the regeneration flow selected for the system.

  • Page 59: Filter Programming

    Installer manual Fleck 4600 SXT - Programming Options: • P0.7: ¾" paddle wheel meter (Standard setting for 4600, 5600 and 9100); • t0.7: ¾" turbine meter; • P1.0: 1" paddle wheel meter (Standard setting for 2750 and 9000); • t1.0: 1" turbine meter;...

  • Page 60: Peak Flow Rate (Pf)

    Installer manual Fleck 4600 SXT - Programming 6.7.3 Peak flow rate (PF) Info The controller registers the highest flow rate (L/min) since the last regeneration. 1. Peak flow rate display: 6.7.4 Hours since last regeneration (HR) Info Shows the number of hours since the last regeneration, indicating the length of the current service cycle.

  • Page 61: Software Version (Sv)

    Installer manual Fleck 4600 SXT - Programming 6.7.7 Software version (SV) Info Shows the version of the software used by the controller. 1. Software version display: Resetting the controller Mandatory Once you have completed this operation, check all programming steps ! Info There are two options to reset: partial and hard reset.

  • Page 62: Commissioning

    Installer manual Fleck 4600 SXT - Commissioning Commissioning Info This chapter is available for standard regeneration flows. Contact your supplier if the actual regeneration is not standard and if you need assistance. Water filling, draining and waterproofness inspection 1. With the bypass still in bypass position (inlet and outlet of the valve closed), plug in the SXT controller to the power source.

  • Page 63: Sanitization

    Installer manual Fleck 4600 SXT - Commissioning The system is ready and in service. Sanitization 7.2.1 Disinfection of water softeners The materials of construction of the modern water softener will not support bacterial growth, nor will these materials contaminate a water supply. In addition, during normal use, a softener may become polluted with organic matter, or in some cases with bacteria from the water supply.

  • Page 64: Electro Chlorination

    Installer manual Fleck 4600 SXT - Commissioning 7.2.3 Electro chlorination Valves or systems already equipped with an electrochlorinator device or system will be sanitized during the brine draw phase. 64 / 100 Ref. MKT-IM-028 / C - 22.09.2020...

  • Page 65: Operation

    Installer manual Fleck 4600 SXT - Operation Operation Display 8.1.1 Display during operation Examples: • Valve in service with day time: • Valve in service with volume remaining before regeneration: • Remaining days before next regeneration: • In volumetric regeneration flow, reserve 1223 litres remaining: •...

  • Page 66: Recommendations

    Installer manual Fleck 4600 SXT - Operation Recommendations • Use only regeneration salts designed for water softening in accordance with EN973; • for optimal system operation, the use of clean salt, free from impurities, is recommended (for example salt pellets);...

  • Page 67: Operation During A Power Failure

    Installer manual Fleck 4600 SXT - Operation Operation during a power failure • Current valve position, cycle step time elapsed, and time of day is stored 24 hours during a power failure, and will be restored upon power restoration; • in regeneration, when power is shutting down, the controller saves the current regeneration data.

  • Page 68: Maintenance

    Installer manual Fleck 4600 SXT - Maintenance Maintenance Mandatory Cleaning, maintenance and service operation shall take place at regular intervals and must be done by qualified personnel only in order to guarantee the proper functioning of the complete system. Report maintenance done in the Maintenance chapter of the User Guide document.

  • Page 69: Regeneration Test

    Installer manual Fleck 4600 SXT - Maintenance 9.1.3 Regeneration test 9.1.3.1 Valve used for softening 1. Check condition of brine tank and any associated equipment. 2. Check salt level in brine tank. 3. Initiate regeneration test. ð Check brine draw during brine draw stage.

  • Page 70: Recommended Maintenance Plan

    Installer manual Fleck 4600 SXT - Maintenance Recommended maintenance plan 9.2.1 Valve used for softening Items 1 year 2 year 3 year 4 year 5 year Injector & filter Clean Clean Clean Clean Clean/ replace if necessary BLFC*** Clean Clean...
  • Page 71 Installer manual Fleck 4600 SXT - Maintenance Items 1 year 2 year 3 year 4 year 5 year Valve Check Check Check Check Check watertightness Valve to piping Check Check Check Check Check watertightness * Wear parts - durability strongly affected by raw water quality and regeneration frequency.

  • Page 72: Valve Used For Filtration

    Installer manual Fleck 4600 SXT - 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 Bypass (if Clean Clean Clean Clean Clean/replace present,...

  • Page 73: Recommendations

    Installer manual Fleck 4600 SXT - Maintenance Recommendations 9.3.1 Use original spare parts Caution - material Risk of damage due to use of non-genuine spare parts ! To ensure correct operation and safety of the device, only use original spare parts and accessories recommended by the manufacturer.

  • Page 74: Controller Motor Replacement

    Installer manual Fleck 4600 SXT - Maintenance 9.4.2 Controller motor replacement 1. Using a flat screwdriver, unscrew (4) and remove the cover (3). 2. Disconnect the motor (1). 3. Using a Philips screwdriver, unscrew (2) and remove the motor (1).

  • Page 75: Controller Replacement

    Installer manual Fleck 4600 SXT - Maintenance 9.4.3 Controller replacement 1. Using a Philips screwdriver, unscrew (1) and remove the cover (2) paying attention for the wire. 2. Press the board clips (3) and release the controller cover (6). 3. Using a flat screwdriver, unscrew (5) and remove the controller (4).

  • Page 76: Piston And/Or Brine Valve And/Or Seal And Spacer Kit Replacement

    Installer manual Fleck 4600 SXT - Maintenance 9.4.4 Piston and/or brine valve and/or seal and spacer kit replacement 1. Remove the power head, see Power head disassembly/replacement. 2. Using a flat screwdriver or an 8 mm wrench, unscrew (3) and remove the top plate (4).
  • Page 77 Installer manual Fleck 4600 SXT - Maintenance Item Part number Description Packaging quantity 12763 Stuffer Ref. MKT-IM-028 / C - 22.09.2020 77 / 100...

  • Page 78: Microswitches And/Or Drive Cam Replacement

    Installer manual Fleck 4600 SXT - Maintenance 9.4.5 Microswitches and/or drive cam replacement 1. Using a Philips screwdriver, unscrew (1) and remove the cover (2). 2. Disconnect the wire on the microswitches (6). 3. Using a Philips screwdriver, unscrew (8). 4. Remove the protection plate (7) and the micorswitches (6).

  • Page 79: Brine Cam Replacement

    Installer manual Fleck 4600 SXT - Maintenance 9.4.6 Brine cam replacement 1. Remove the power head, see Power head disassembly/replacement. 2. Using a flat screwdriver, unscrew (1). 3. Remove the washer (2) and the brine cam (3). 4. Change the brine cam (3).

  • Page 80: Injector Cleaning

    Installer manual Fleck 4600 SXT - Maintenance 9.4.7 Injector cleaning 1. Using a flat screwdriver or an 8 mm wrench, remove the screws (6). 2. Remove the cap injector (5). 3. Remove the seal (4). 4. Remove the filter (2).

  • Page 81: Blfc Cleaning

    Installer manual Fleck 4600 SXT - Maintenance 9.4.8 BLFC cleaning 1. Using a wrench, remove the BLFC holder (1). 2. Using pliers, remove the grid (4) from BLFC holder (1). 3. Remove the BLFC washer (3) from the grid (4).

  • Page 82: Valve On Tank Assembly

    Installer manual Fleck 4600 SXT - Maintenance 9.4.9 Valve on tank assembly 1. Lubricate the seals with approved silicone grease. 2. Spin the valve (1) onto the tank (2), ensuring the threads are not cross-threaded. 3. Rotate the valve (1) clockwise and freely, without using force until it comes to a stop.

  • Page 83: Troubleshooting

    Installer manual Fleck 4600 SXT - Troubleshooting Troubleshooting Problem Cause Solution Softener fails to Interrupted power or switched off Restore the controller and regenerate automatically power source. connect to constant power source. Disconnected/faulty meter cable. Check connections in the power head and on the meter cover.
  • Page 84 Installer manual Fleck 4600 SXT - Troubleshooting Problem Cause Solution Resin loss through drain Top distributor missing or broken. Add or replace the top distributor. line Air in water system. Ensure the presence of air check system in the brine tank.
  • Page 85 Installer manual Fleck 4600 SXT - Troubleshooting Problem Cause Solution Softener fails to draw Plugged drain line flow control. Clean drain line flow control. brine Plugged injector and/or filter. Clean or replace injector and/or filter. Low water pressure. Raise inlet pressure to 1.8 bar minimum.

  • Page 86: Error Detection

    Installer manual Fleck 4600 SXT - Troubleshooting 10.1 Error detection Errors codes appear on the service display. Info It can take up to 1 minute before an error can be detected and displayed. 10.1.1 Motor stall/cam sense error Info The valve drive takes more than 6 minutes to go to the next regeneration cycle and the board hasn’t received expected signals from microswitches.

  • Page 87: Motor Run-On Error/Cycle Sense Error

    Installer manual Fleck 4600 SXT - Troubleshooting 10.1.2 Motor run-ON error/cycle sense error Info The valve performed an unforeseen cycle. This error message is only valid until controller version 2.6. 1. Unplug the unit and plug back in. Allow the controller to attempt to find position again.

  • Page 88: Memory Error

    Installer manual Fleck 4600 SXT - Troubleshooting 10.1.4 Memory error Info The controller board has a memory failure. 1. Perform a master reset. 2. Reconfigure the system via master programming mode. 3. Step the valve through a manual regeneration. 4. If the error reoccurs, unplug the unit.

  • Page 89: Spare Parts And Options

    Installer manual Fleck 4600 SXT - Spare parts and options Spare parts and options 11.1 Valve parts list Item Part number Description Packaging quantity 29116 End plug retainer kit 4600 24116-US Piston assy 4600/5600 Ref. MKT-IM-028 / C - 22.09.2020...
  • Page 90 Installer manual Fleck 4600 SXT - Spare parts and options Item Part number Description Packaging quantity 24117-US Piston assy 4600/5600 LWU 18928 Piston assy 4600/5600 Filter 27077-US Piston assy 4600SXT/5600SXT/6600/6700 DF 27077-01-US Piston assy 4600 SXT HW 24944 S&S Kit 4600/9000 HW Upper 24115 S&S Kit Residential...

  • Page 91: Power Head Parts List

    Installer manual Fleck 4600 SXT - Spare parts and options 11.2 Power head parts list Item Part number Description Packaging quantity PH56SXT-003 PH 4600/5600 SXT Eco PH56SXT-004 PH 4600/5600 SXT Eco UF 25329 Drive Motor assy 24V/50-60Hz 29131 Kit back cover black 4600/5600/6600...

  • Page 92: Safety Brine Valves List

    Installer manual Fleck 4600 SXT - Spare parts and options Item Part number Description Packaging quantity BU28723 Front panel & label SXT 40422SP Wire Nut Tan 19791-01SP Turbine Meter Cable elec 0.450 m BR43346-E0 Circuit board SXT programmed eco 11.3...

  • Page 93: Safety Brine Valves 2310 Parts List

    Installer manual Fleck 4600 SXT - Spare parts and options 11.4 Safety brine valves 2310 parts list Item Part number Description Packaging quantity 60014SP Body Assy SBV 2310 18312SP Retainer, drain 19805SP Nut SBV 2310 Plastic 60068-30SP New Float assy 2310...

  • Page 94: 1" Bsp Female Brass Bypass With Mixing

    Installer manual Fleck 4600 SXT - Spare parts and options Item Part number Description Packaging quantity BU28502 Bypass 1” BSP Female Stainless Steel 13709 Coupling Assy residential 29104 Kit mounting/adapter 2 clips & 2 screws residential 11.5.2 1" BSP female brass bypass with mixing...

  • Page 95: Plastic Bypass (No Yoke)

    Installer manual Fleck 4600 SXT - Spare parts and options Item Part number Description Packaging quantity 24509-02 Mixing assy 4600 Hot Water 11.5.3 Plastic bypass (no yoke) Item Part number Description Packaging quantity BU26054 Bypass plastic 29104 Kit mounting/adpater 2 clips & 2 screws...

  • Page 96: Distribution Systems Parts List

    Installer manual Fleck 4600 SXT - Spare parts and options 11.6 Distribution systems parts list Item Part number Description Packaging quantity BU28508 Distributor assy, 1” high flow HW 1m10 21675 Distributor assy, 1” high flow HW 1m88 BU28509 Distributor assy, 1” UF & high capacity HW 1 m 10 25639 Distributor assy, 1”...

  • Page 97: Meters Parts List

    Installer manual Fleck 4600 SXT - Spare parts and options Item Brine Part Description Packaging system number quantity 1600 18168 Air checks 500A, 915mm (36") 26773 Air checks 500A, 1m25 23473 Air checks 500 HW 11.8 Meters parts list Item...
  • Page 98 Installer manual Fleck 4600 SXT - Spare parts and options Item Part number Description Packaging quantity 18280SP Top distributor 1” grey 18280-01SP Top distributor 1” wide slots natural 18280-02SP Top distributor 1” narrow slots red 18280-10SP Top distributor 1” HW black...

  • Page 99: Disposal

    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 100 All indicated Pentair trademarks and logos are property of Pentair. Third party registered and unregistered trademarks and logos are the property of their respective owners. © 2020 Pentair. All rights reserved.

Table of Contents