Carel humiSonic UU02, User Manual

Page: 60 / 68

28
ENG
Direct version for room applic. +0300062IE - rel. 1.1 - 16.11.2017
Piezoelectric transducer
All transducers, both front and rear, can be inspectable by removing
the carter and the wall-mounted humidifier, before disconnecting the
hydraulic and electrical supply.
Note: the atomisation capacity of the piezoelectric transducer
gradually decreases with use. It is recommended the replacement after
10,000 operating hours, if the water in use is demineralized, although the
unit can continue to operate as long as the actual capacity corresponds
to the requirements. With drained or tap water, operating hours can be
reduced depending on the water quality.
To remove the piezoelectric transducer:
1.
turn the humidifier body over and identify the piezoelectric
transducer to be replaced;
2.
remove electrical cable terminals from the corresponding driver
board;
3.
using a tube spanner (5.5), loosen the fastening nuts, remove the
transducer and replace it;
4. when replacing the transducer, pay attention to the white markings
(arrow): the top line of transducers has the markings on the right, and
the bottom line has the markings on the left. The transducer must
have the markings positioned in the same ways as the adjacent ones.
Important:
if the transducer is fitted rotated 180°; incorrect assembly will cause
a reduction in atomised water production and potential humidifier
malfunctions.
Fig. 10.m
Fig. 10.n Fig. 10.o
Note: the tightening torque of the nuts that fasten the transducer
must be 4±0.5 kg cm.
Control board and power supply
To access the electronic control board and power supply, just remove the
left side lock (Fig. 10.g). To remove the control board (Fig 10.p):
1.
unscrew and remove the nuts and remove the control board;
2.
to remove the power supply (Fig. 10.q), unscrew the screws and lift
it out from above.
5.5
Fig. 10.p
Fig. 10.q
10.7 Cleaning the tank
To access the tank and carry out the cleaning operations:
A.
unscrew the screws that secure the cover and remove the fastening
brackets;
B.
unscrew the screws that fasten the fan supports and the fans;
C.
if necessary, unscrew the screws to detach the fans and clean the
air filters;
D.
lift the cover out to access the tank.
To clean the tank, use a soft brush.
A
A
B
C
D
Fig. 10.r