Setting Of The Water Quality By Using The Blending Valve - BWT bestaqua 22 HQ Notice De Montage Et D'utilisation

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FLUSH / flushing process step after stop:
In the operating status "flush/FLUSH" start the flushing procedure
of the RO membranes with permeate run after each stop. The units
control display shows the operating status "flush".
READY to start (waiting of the start signal):
With the display of the operating status "ready/READY" the RO
unit indicates that it is permanently able for operation, but need
a signal of a permeate demand to start the production within the
status "working". The display shows the operating status „ready":
Press the arrow keys to call up the detailed overview screen.
r e a d y
PERM 3.2 bar
PUMP
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25– 06 – 13 10 : 58
READY
Fig. 8: Display shows the status "READY" and is operational.
3.5 Setting of the water quality by using
the blending valve
By using the integrated blending valve it is possible to increase the
permeate conductivity with the partly mixing of feed water. An blen-
ding is required, depending on end usage. The adjusting screw (S) is
located inside the unit, see Fig. 9. The setting can be changed with
a flat screwdriver. The needed conductivity value (setpoint) can be
read out on the display.
Fig. 9: Adjusting screw (S) for defined blending
36
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S
EXT. PAUSE / (remote pause in OPTION):
When the RO unit displays "remote pause/EXT. PAUSE" the RO
unit is interlocked by the external
controller detects no incoming signal of a permeate demand (of
an NO-level switch). In this case no production can take place and
the operating status "remote pause" is shown on the RO display.
Press the arrow keys to call up the detailed overview screen.
r e m o t e
p a u s e
PERM 3.2 bar
PUMP
_ _ _
25– 06 – 13 10 : 58
EXT. PAUSE
Fig. 9: The display shows "EXT. PAUSE" and is remotely controlled
of an external device control.
3.6 Option: External I/O installation kit
All RO alarms can be transferred as an common alarm to an
external control. The optional "external Input and Output kit"
enables the use of the potential-free NO contact to activate the
remote On-/Off switching of the RO units installable alarm output.
The external I/O kit is upgradable as an additional install option.
External I/O installation KIT Order no.: 824047
control. The external
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remote