9
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.
