The connections of the unit are (please refer to Fig. 1):
Note: Before taking the unit into first operation, rinse the pre-filter and then attach it to the
reverse osmosis module!
1. Attach the tap connection to a 3/4" tap. If necessary, use a reduction piece (not included in
shipment).
2. By using a piece of tube, one puts it from the tap connection into the tap water inlet of the unit
into the pre-filter (1).
3. Connection between pre-filter and reverse osmosis module.
4. Waste water outlet (6) at the flush valve.
5. Pure water (permeat) (5).
Mounting the membrane:
Remove the screw cap of the module housing (Fig. 1, No. 4). Take the membrane out of the plastic
bag and put it into the reverse osmosis module. Take care to insert the membrane in the right
direction (Fig. 2, No. 2) with both sealings (Fig. 2, No. 1) directed to water outlet. The membrane
has to be pushed forward until the 2 sealings are in the right position at the top and the pure water
sealing (Fig. 2, No. 3) is fixed. Before the housing can be closed, mount the O-rings (Fig. 1, No. 9)
on the reverse osmosis module.
1
2
3
Fig. 3: Membrane
Starting:
When all connections are tight, you can open the tap water. The minimum water pressure for the
unit is 3 bar. The nominal capacity is reached at 4 bar. If the pressure drops below 3 bar, the
production capacity is reduced, below 2 bar it also reduces the rejection rate.
Firstly, check all connections on water tightness. If leakage occurs, tighten the fittings or the
housing. Now, the concentrate flows out of the outlet at closed flush valve. After some minutes,
also purified water flows out of the permeate outlet, however, at a lower flow rate.
The pure water, produced in the first 2 hours, has to be discarded because it may contain
residues of the disinfection liquid which has been filled in the module for storage. After 2
hours, the water can be used.
3. Use of the water
Rejection rate:
The retention rate of the membrane is up to 98%. Nitrate and silicate are only rejected up to max.
70%.
The water can be used in various areas:
9