BWT bestaqua 16 ROC Caractéristiques Techniques, Instructions De Montage Et De Service page 20

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6 Operation of the reverse osmosis
6.1 Switching on the BWT bestaqua 16 ROC
H
DANGER!
NEVER put the device into operation if the housing cover has been removed.
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The RO device must be connected to hoses and the electrical plug socket.
Insert the plug.
Open the valve for the feed water supply.
The BWT bestaqua 16 ROC is switched on with the device switch on the back of the device.
Operation (POWER ON) of the BWT bestaqua 16 ROC is shown by a green LED.
6.2 Setting the water quality on the blending valve
 NOTE!
The standard setting on the filter head is snap­in position "0" (no blending function).
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The filter head for adjusting the blend are located under the top front cover plate. The quantity
of bypass water can be adjusted on the integrated RO filter head (Fig. 3, Number 10). The by-
pass/blend is adjusted by turning the cap. Press button "a" and turn the cap right or left until
the desired blend quantity is reached. The bypass setting of the RO filter head can be set contin-
uously, regardless of the locking positions 0, 1, 2 ,3 displayed.
The target conductance should be measured in free run-off. The actual output conductance is
displayed in the app. The conductance should be checked after a few hours of operation and
re-adjusted as necessary. In general, the conductance should be checked at regular intervals.
6.3 Hygiene concept and pauses in operation
In order to ensure the maximum life span of the membrane, there are two hygiene concepts:
Stop delay: After each production, the pump continues to run for around 10 s in order to flush
the membrane with tap water. This ensures that the conductance on the concentrate side of
the membrane is reduced to the initial conductance again. Stagnation peaks are thus avoided
and calcification of the membrane reduced. The quantity of waste water generated here is ap-
prox. 500 ml.
Interval flushing: Where the device is not operated for a longer period (e.g. at night), the
membrane is automatically flushed every three hours. To do this, the magnetic inlet valve
opens for around 30 s and the membrane is flushed at line pressure. Depending on the line
pressure, the quantity of waste water created is between 400 and 900 ml.
If the system is out of operation and disconnected from the power for a longer period (e.g.
during a holiday), 5-minute device flushing is necessary. It must be guaranteed that the flushing
water can flow off via the consumer if necessary. The flush water should be discarded.
 NOTE!
Please also follow the operating instructions of the external pre­filter used.
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6.4 Disassembly/assembly of a new filter cartridge
Switch off the BWT bestaqua 16 ROC (On/Off switch on back of device). Ensure that the status
LED is no longer lit.
Take the new filter cartridge out of the packaging and remove the hygiene cap.
Before installing a filter cartridge, write the date of installation and the date of replacement
(no more than 12 months later) on its product label.
Tip the device backwards slightly to gain better access to the filter cartridge to be replaced.
Turn the old filter cartridge clockwise to remove it from the filter head.
Turn the new filter cartridge anticlockwise to insert it into the filter head.
Switch the device on again and check the system for leaks.
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