Protecting The Ro 400 Against Freezing During Storage; Regular Care Of The Ro 400; Points To Remember - Electrolux RO 400 User Manual

Protecting the RO 400 against
freezing during storage
This procedure is similar to the one described on the
previous page, but the essential difference is that here
the water on the "clean" side of the membrane has to be
completely removed from the appliance. Failure to do
this can result in damage to the appliance if it is exposed
to temperatures below 0 °C. As its name suggests, the
Preservative and Antifreeze Liquid protects the water on
the other side of the membrane against freezing. For this
procedure you need both the Preservative and
Antifreeze Liquid and the special Water Extraction
Device. Both can be ordered from your dealer. Please
quote the part numbers listed under "Optional accessories
and consumables".
1 Follow steps 1–4 of the instructions: "Preparing the
RO 400 for storage", but here, at step 2, you need to
disconnect the appliance ends of the hoses for feed water
and reject water. Bear in mind that they will contain water.
2 Disconnect the appliance end of the hose for purified water
by pressing the grey sleeve inwards and pulling the hose
outwards at the same time. Connect the Water Extraction
Device and the section of tubing supplied with it as shown
in Fig. D.
3 Fully open the valve on the water supply pipe. Check that
no water is leaking from the Water Extraction Device.
4 The Water Extraction Device will now empty all the
water from the "clean" side of the membrane. The time
this takes will depend on the pressure of your domestic
water supply. If it is 1-2 bar, you should leave the device
Listed below are the things you need to remember in the regular care of your water purifier. The
points are listed in the order of frequency, starting with daily checks.

Points to remember

• Check the indicator lights every day, in case there is some
state or function which needs attention.
• The everyday care of the RO 400 consists basically of
keeping it clean. The outside of the appliance should be
cleaned with a damp cloth only. Do not use a wet cloth
and do not pour water over it for cleaning. Do not use
any cleaning agents.
• Once a month check that all connections to the appliance
are properly secured and watertight. Wipe dry any
condensation which may have accumulated inside the
appliance base. Leakages outside the appliance cannot be
detected by the appliance's leakage protection system.
• The appliance needs to be descaled at regular intervals.
The frequency depends on the hardness of the water
supply and its microbial content.
in place for at least 30 minutes. If the pressure is 3 bar or
higher it will take about 15 minutes. If the domestic
water pressure is low it is advisable to avoid using
showers, dishwashers or washing machines at the same
time, to empty the appliance as effectively as possible.
Disconnect the Water Extraction Device from the
RO 400.
5 Reconnect the appliance ends of the hoses for feed water
and reject water to the RO 400. Then disconnect their
other ends from the domestic plumbing, as illustrated in
Fig. B. Now follow steps 5–8 of the instructions:
"Preparing the RO 400 for storage".
The RO 400 is now prepared for storage and protected
against freezing. It will withstand temperatures
down to -30°C.
D

REGULAR CARE OF THE RO 400

• Be sure to replace the filters as soon as necessary. The life
of these filters is determined by (amongst other factors)
the levels of impurities in your water supply. If the water
supply has been classified as unfit for drinking, the water
from the appliance should be tested once per year.
• After replacing filters leave the discarded filter insert to
drain for a few minutes. These filters can be discarded in
your ordinary household refuse, since they do not
contain any substances which are hazardous to the
environment.
• The membrane should be replaced when the flow of
purified water has reduced to approximately half of what
it was originally, even though the appliance has been
descaled regularly. Contact your dealer for more
information.
MAINTENANCE
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