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User Guide Fleck 3900-NXT2
3.3.
Components description and location
3.4.
Bypassing
If the system is equipped with a bypass and if a problem occurs, turn the valves to bypass the system as shown in the picture
below.
Softening System
Normal
operation
Out
4 .
Programming
Note:
The controller must be plugged in to be programmed.
After 5 minutes with no button pressed, the unit returns to normal operation without saving.
4.1.
Basic programming
Note:
Menus are displayed in a defined and incremental order. Depending of selected system or regeneration type,
some of this parameters may not be visible. Editable or selected value or digit is marked by one or two triangles.
Day Override / Time-driven
Note:
Set the maximum number of days between two regenerations, regardless from the volume of water treated.
This parameter is not visible in «Day of the week» mode.
A
Press and hold
and
B
Select the number of days or hours with
C
Press
to validate the selection and advance to the next parameter.
Regeneration time
D
Adjust the regeneration time with
E
Press
to validate the selection and advance to the next parameter.
Hardness
Note:
Set the inlet water hardness in the setted hardness unit. This parameter is visible only in «Softener meter
immediate/delayed» modes.
F
Adjust the hardness with
G
Press
to validate the selection and advance to the next parameter.
Volume remaining
Note:
Set the remaining volume, in Litre, before the system's capacity is exhausted. This parameter is visible only
in «Softener meter immediate/delayed» mode.
H
Adjust the volume with
I
Press
to validate the selection and advance to the next parameter.
6 / 36
Status LED
Display
Regen button
UP/DOWN buttons
Diagnostic button
In
simultaneously to start user programming mode.
and
.
and
.
and
.
and
.
Outlet
Inlet
Softening System
In Bypass
Out
Brine line
Drain
In
Ref. MKT-UG-043 / A - 11.07.2019
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