Installer Manual Fleck 3900 - NXT - Installation
44 / 126 Ref. MKT-IM-015 / B - 08.06.2018
5.7. System types
Note
For all multiple tank systems, NBP version valves must be used.
Metered immediate:
The controller monitors the volume of water used. Once it calculates that capacity is exhausted, it
starts regeneration immediately.
Metered delayed:
The controller monitors the volume of water used. Once, at a preset time, it calculates that there is
not enough capacity for the next days of operation, a regeneration cycle will be initiated at a preset
time.
Time clock:
The controller will regenerate based on a set time of operation days at a preset time.
Remote regen start
The controller will get a signal from a separate device to start the regeneration.
Side mounted
adapter
18926
Valve 3900 NXT
SBV 28182
Air check 18979
Side mounted configuration example
Upper distributor
A-2742-FU
Upper distributor
A-2742-FL
Tank
C-4278-F7
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