Fleck 7700 SXT Bedienungsanleitung Seite 27

5.1.2
5.1.3
E
N
G
L
I
S
H
5.1.4
5.1.5
5.1.6
26
5 - PROGRAMMING
Valve type (VT)
Note: if this parameter is changed, the valve will make a complete turn and come back in
service.
This parameter is used to set the type of piston used on the valve.
- [dF2b] : Down flow valve, with double backwash (regulated by default)
- [dFFF] : Down flow valve, brine tank refill in the first cycle
- [FLtr] : Filter valve
- [AIO] : specific application for iron filtration
Regeneration type (CT)
This setting is identified by the letters CT. This function allows the setting of the valve regeneration
type. There are 4 possibilities:
- Time clock [tc]: The electronics establish that a regeneration is requested when the number of
days between two regenerations and the preset time have been reached; the new cycle
beginning at the preset time. The setting of the day override establishes the number of days
between two regenerations.
- Weekly time clock: This type of regeneration is based on the days of the week:
Monday, Tuesday, Wednesday..., Sunday. The electronic triggers a regeneration per
predefined day of the week and at the preset time.
- Metered immediate regeneration: The electronics establish that a regeneration is
required when the softened water volume has reached zero. The regeneration starts
immediately.
- Meter delayed regeneration: The electronics establish that a regeneration is requested when
the volume of softened water used has reached the reserve capacity of the unit. Regeneration
will begin at a preset time.
System capacity (C)
Not visualised in time clock mode
This setting is identified by the letter C. It enables the regulation of the system capacity in m
The multiplier indicates that we are in m
The system calculates the water volume that needs to be treated before a regeneration is
requested referring to this parameter and the following one.
i.e.: 200 m 3 x°tH
Feed water hardness (H)
Not visualised in time clock mode
This setting is identified by the letter H. It enables the regulation of the feed water hardness.
The system uses this setting and the previous one to establish softened water capacity.
i.e.: 25°tH
Reserve type (SF)
Not viewed in time clock mode
- Safety factor: this parameter is identified by the letters SF. The value is expressed as a per-
centage of the capacity of the softened water that the system must keep in reserve. Any chan-
ge to the system capacity or inlet water hardness will affect the softened water capacity calcu-
lated by the system and therefore the reserve volume.
The maximum setting is 50%.
i.e.: - 15% of the reserve capacity
- No reserve, set on zero
- Fixed reserve capacity: this parameter is identified by the letters RC. This setting is expressed
in volume; the unit depends of the parameter set during the programming. The maximal volume
which can be used as reserve is one half of the softened water capacity calculated by the sys-
tem. This reserve capacity mode is fixed and is not affected if the parameters "system capacity"
or "inlet water hardness" are changed.
i.e.: - 1200 liters reserve
- No reserve, set on zero
3 x°tH.
3 xtH°.
7700 SXT