Automatic Control Of Leaking Drain Solenoid Valve And Fi Ll Solenoid Valve Fl Ow-Rate; Automatic Protection Of The Piezoelectric Transducers - Carel humiSonic Manual Del Usuario

If after a percentage of A8, set by parameter Ab (default 70%) the water
is above the high level threshold, atomised water production stops,
warning EL is generated and the appliance waits AA minutes (default
10), during which the display shows "Rty" (Retry), before attempting
to resume production. The warning signal EL is reset at the end of a
production cycle that is completed correctly.
6.7 Automatic control of leaking drain
solenoid valve and fi ll solenoid valve
fl ow-rate
Parameter A9 sets a minimum production time (default 1 minute); if the
production cycle lasts less than this time, it may mean that the drain
solenoid valve is leaking or that the fi ll solenoid valve fl ow-rate is too low.
In this case, the controller carries out the following operations:
1.
At the end of the fi rst cycle that ends after a time less than A9, the
water refi ll time is increased (50% higher than parameter bb).
2. At the end of the second cycle that ends after a time less than A9,
the water refi ll time is increased further (100% higher than parameter
bb) and a chattering* cycle is activated on the drain solenoid valve,
performed during the fi rst automatic wash cycle.
3.
At the end of the third cycle that ends after a time less than A9, the
water refi ll time is increased further (150% higher than parameter
bb) and a washing cycle is performed, during which chattering* is
applied, as enabled in the previous step. Warning Ed is also generated.
4.
After the fi nal step, a new production cycle will be activated. If the
problem persists, the controller will restart the procedure from the
fi rst step, until completing a cycle in the expected time. In this case,
any warnings will be reset.
*Chattering: a sequence in which the drain solenoid valve is opened/
closed in rapid succession, with the aim of removing any residues (scale,
dust, etc.) that prevent it from closing correctly.
6.8 Automatic protection of the
piezoelectric transducers
The piezoelectric transducers will, by nature, be rapidly damaged
and eventually break if operated without water. To prevent this from
happening, the control board makes sure, via the level sensor, that even
in the event of anomalies the transducers are never activated when no
water is present. When starting with the tank empty, the transducers are
only activated when the low level is measured. When refi lling during
operation, i.e. after the water level has fallen below the minimum as a
result of consumption due to atomisation, with consequent activation of
the fi ll solenoid valve, if the level does not rise in the minimum time (AC),
the transducers are switched off , while the fi lling cycle continues until the
level has been replenished or bA minutes have elapsed since the water
fi ll cycle started. If the level is replenished correctly, the piezoelectric
transducers are immediately restarted.
17 Direct version for room applic. +0300062IE - rel. 1.3 - 15.07.2019
ENG