30
ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.7 - 24.10.2022
NOTICE:
• the tightening torque of the screws that fasten the transducer must
be 0.4±0.05Nm;
• beware of electrostatic discharges, so as to prevent damage to
electronic components.
Replacement procedure:
3. switch the humidier o (switch “0”), and open the mains disconnect
switch (safety procedure);
4. disconnect the transducer power cable;
5. release the tank (the two tabs at the rear) and lift it vertically to
remove it;
6. clean or replace the transducers by removing the screws (gure).
After replacement test water-tightness by lling the tank manually;
7. reconnect the transducer power cables;
8. reposition the tank;
9. switch the humidier on.
Fig. 13.c
Periodical checks
• Every year or no more than 1500/5000 operating hours respectively
with mains/demineralised water:
- clean the piezoelectric transducers
- make sure the level sensor slides freely
NOTICE: in the event of water leaks, disconnect the humidier from the
power supply and repair the leak
13.4 Cleaning and maintenance of other
components
• Using humiSonic with demineralised water , transducers last about
10,000 h . If it is used another type of water or if the water has impurities
and dirt , the transducers useful life is reduced proportionally
• when cleaning plastic parts do not use detergents/solvents;
• descaling can be performed using a 20% acetic acid solution, followed
by rinsing with water;
• To replace the drivers and transducers, loosen the screws shown in the
gure with a screwdriver. Before applying the new driver , spread on
the back of the heat sink in contact with the tank, a layer of conductive
paste. The lack of the conductive paste may cause malfunctions. To
insert new transducers, observing the direction of insertion (please,
pay attention to the print before removing the old one).
NOTICE: the tightening torque of the screws that fasten the transducer
must be 0.4±0.05Nm.
Maintenance checks on other components:
□ ll solenoid valve. After having disconnected the cables and hoses,
remove the solenoid valve, check the inlet lter and clean if necessary,
using water and a soft brush.
NOTICE: after having replaced or checked the water circuit components,
make sure the connections are restored correctly.