As soon as approx. 9 – 11 litres of permeate have been removed, the high-pressure
pump switches on to start permeate production. The time taken depends on the tem-
perature of the raw water, but should average around 3 to 4 minutes.
„No Water“ message lights up, once the RO-unit switches to „By-Pass“
If the permeate output per hour is too low the „Membrane Alarm“ message lights up.
If the permeate output per hour is too high the „Membrane Alarm“ message lights up.
Check that the RO-unit shuts of automatically in case of too low raw water
pressure or missing water supply.
This can be done by closing the water shut-off valve while the unit is running.
Once the inlet water pressure drops below 1 bar, the RO-unit will shut-off itself.
When the water shut-off valve is opened again and the pressure exceeds 1 bar,
the RO-unit will run again automatically.
Slowly close the water shut-off while the RO-unit is still running. As soon as the water
supply has been completely turned off, the RO-unit must automatically turn it self off.
Slowly open the water shut-off again. As soon as the water supply is back to normal
the RO-unit must be running by itself.
The RO-unit is now running and producing permeate. Wait for the level control to stop
the production, the storage tank will be filled with permeate after approximately 15-
17. Minutes. Hereafter the user application can be used with permeate water.
Providing that the power is not turned off, the unit will continuously flush the
concentrate side of the membranes with permeate during non-operation peri-
ods. This is to prevent dissolved mineral salts to move to the permeate side of
the membranes. It will ensure a permanently high quality of permeate and a
lengthened longevity of the membranes.
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