To clean the grid
The grid (a coarse filter) is designed to intercept large particles and is
located inside the connection for the feed water on the appliance. If
the pattern of indicator lights on the control panel shows that the
intake pressure is too low, the reason may be that the grid is clogged.
1 Turn off the spigot for purified water. Disconnect the appliance from
the electrical supply.
2 Close the valve on the water supply pipe.
3 Undo the feed water hose connector on the back of the appliance.
4 Use suitable pliers to grip and remove the grid (Fig. A).
5 Clean the grid and run water through it before putting it back inside
the connector.
6 Reconnect the feed water hose to the appliance.
7 Open the valve on the cold water supply pipe and check that there are
no leaks.
8 Connect the appliance to the electrical supply again. It will flush
automatically.
Preparing the RO 400 for storage and
protecting it from freezing
If the RO 400 is not going to be used for a period longer than four
months, or if the purifier is going to be disconnected from water and
electricity, it needs to be filled with a special product to keep it in
good condition. The correct product ("Preservative and Antifreeze
Liquid") can be ordered from your dealer. Please quote the part
number listed under "Optional accessories and consumables".
This product must be kept out of the reach of children. Wash your
hands after using it.
1 Make sure the spigot is closed and the appliance has stopped flushing.
2 Close the valve on the water supply pipe. Disconnect the electrical plug
and the hose for feed water (but not at the appliance end). Study Fig. B.
3 Undo both filter containers as described under "Replacing the filters",
steps 3–6. Remove the two filter inserts and discard them (should
not be kept for re-use). Empty the water from the containers.
4 Put the empty filter containers back in their normal places and tighten
them. Make sure that each sealing ring is in place in the groove on the
top edge of each container.
5 Mix 1/2 gallon (2 litres) of the "Preservative and Antifreeze Liquid"
with 1 gallon (4 litres) of water in a bucket.
6 Put the end of the hose (feed water) into the mixture. Make sure
that the end of the feed water hose remains beneath the surface
throughout, see Fig. C.
7 Connect the electrical plug again. The RO 400 will now auto-
matically pump the mixture inside the appliance. After 40 seconds,
disconnect the electrical plug. Repeat this step until all the mixture has
been drown up. Leave the spigot for pure water open or disconnect
the pure water hose from appliance.
You have now prepared the RO 400 for storage. It can be left
in this state for up to nine months and down to temperatures of
-22 °F (-30 °C). Disconnect the purifier from electricity and
feed water.
When the RO 400 is to be brought back into use
you must:
• Ensure that the water purifier is kept somewhere where the
temperature is higher than 41 °F (5 °C) for at least 48 hours.
• Work through all the steps of the full "Flushing procedure",
to remove the preservative.
• Fit new filter inserts (both and ), see "Replacing the
filters".
18
MAINTENANCE
B
C
A
Kommentare zu diesen Handbüchern