FT alison BASIC, Сервисная книжка с данными

Страница: 22 / 28

English
22
SO model
• Water flow towards the appliance is controlled by a 4
ways shut off valve
After the filtering stage, water flows towards the rever-
se osmosis membrane (M).
BASIC & PLUS (Pump models)
• Water flow towards the appliance is controlled by a
solenoid valve (Si)
After the filtering stage, water flows towards the rever-
se osmosis membrane (M). The appliance may incorpo-
rate a pump (P) to increase pressure. It is the effect of
the water pressure upon the membrane, which makes
the reverse osmo sis possible.
• The treated water is stored in the tank (T) for its sub-
sequent use. Water that is rejected or has excessive salt
or other dissolved substances flows towards the drain
outlet (G) to be disposed of.
• When the system’s tap is turned on, the water sto red
in the tank flows through a post-filtering stage (R) who-
se aim is the elimination of possible odours and taste,
as well as pH level adjustment, which the water may
retain before being dispensed.
• Models with a pump (P) control the fi lling of the tank
via a pressure switch (HPS) and have a built-in low pres-
sure switch to protect the pump against pres sure drops
from the network (LPS).
• Models with a pump (P) include electronic system for
leakage detection (L). When the system detects this
condition, it blocks the system and emits an acoustic
signal and a light signal to in form about the situation.
The unit will remain blocked until the leakage sensor
is dry.
Besides, PLUS model is managed by a state-of-the-art
electronic module:
• Probe used to estimate the conductivity of water
produced, thus assessing the state of the membra-
ne and the components (Q). Press the front button
to me asure the conductivity of water produced.
• Automatic filter change warning, in order to in-
form the user that proper maintenance must be
carried out to guarantee the quality of water pro-
duced.
• The system has a build-in membrane automatic
cleaning valve. This valve performs sweeps on the
surface of the membrane in order to drag accumu-
lated deposits and extend its lifespan.