Pentair FLECK 3150 NXT Installer Manual page 3

4.1.1 Injector/DLFC/BLFC-Valve configuration...........................................................
4.2 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 ..............................................
4.2.4 Valve configuration..............................................................................................
4.2.5 Cycle time calculation .........................................................................................
4.3 Salt amount definition ................................................................................. 34
4.4 1800 Injector flow rates............................................................................... 34
5 Installation ...................................................................................... 37
5.1 Warnings...................................................................................................... 37
5.2 Safety notices for installation ..................................................................... 37
5.3 Installation environement ........................................................................... 38
5.3.1 General ................................................................................................................
5.3.2 Water ...................................................................................................................
5.3.3 Electrical .............................................................................................................
5.3.4 Mechanical ..........................................................................................................
5.4 Integration constraints................................................................................ 39
5.5 Valve connection to piping........................................................................... 40
5.5.1 Top-mounted valve installation ..........................................................................
5.5.2 Side-mounted valve installation .........................................................................
5.6 Block diagram and configuration example................................................. 43
5.7 System types ............................................................................................... 44
5.7.1 Single valve (System #4) .....................................................................................
5.7.2 Multiple valves, parallel interlock system (System #5) .....................................
5.7.3 Multiple valves, parallel series regeneration system (System #6)....................
5.7.4 Duplex alternating immediate system (System #7) ...........................................
5.7.5 Duplex alternating delayed system (System #8) (NXT2 only) ............................
5.7.6 Multiple valves, parallel system with standby unit (System #9) ........................
5.7.7 Multiple valves, system on-demand (System #14).............................................
5.8 Electrical connections................................................................................. 52
5.8.1 NXT controller connections ................................................................................
5.8.2 NXT2 controller connections ..............................................................................
5.8.3 NXT controller connections for multiple valves .................................................
5.8.4 NXT2 controller connections for multiple valves ...............................................
5.9 Bypassing .................................................................................................... 57
5.10 Drain line connection .................................................................................. 57
5.11 Overflow line connection............................................................................. 58
5.12 Brine line connection .................................................................................. 59
6 Programming .................................................................................. 60
6.1 NXT controller ............................................................................................. 60
6.1.1 Display .................................................................................................................
Ref. MKT-IM-010 / C - 18.10.2019
Installer manual Fleck 3150 NXT/NXT2 - Table of Contents
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