Carel humiSonic UU02, User Manual, Page: 59 / 68

27
ENG
Direct version for room applic. +0300062IE - rel. 1.1 - 16.11.2017
Dismantling the rear panel (to access the rear fans
Warning: disconnect the main power supply of the humidifier
before proceeding with the following operations.
To remove the rear panel, first take off the left side cover:
1. loosen and remove the screw (A);
2.
remove the cover (B);
3. unscrew the screws (C) to disconnect the power cable from the
terminal block, and the screws (D) to remove the rear panel (E).
A
B
D
E
C
Fig. 10.g
Diffusers
The diffusers are only attached to the top cover. Once the cover has been
removed, to replace the diffusers simply lift them off.
Rear fan/driver board
To access to the front fans and drivers with the wall-mounted humidifier,
remove the carter, before disconnecting the hydraulic and electrical
power supply. If you would like to perform extraordinary maintenance on
a workbench, follow the procedure below.
1. disconnect the electrical cables running from the fan to the driver
board;
2.
remove the fastening screws using a screwdriver;
3.
remove the fan;
4.
to remove the front driver board, loosen and remove the two
fastening nuts with a tube spanner;
5.5
Fig. 10.h
Front fan/driver board
1. Unscrew the screws under the bottom panel;
Fig. 10.i
Remove the cover from the two uprights;
Fig. 10.j
2. Slide out the humidifier body;
Fig. 10.k
3. To remove the front driver board, loosen and remove the two
fastening nuts with a tube spanner.
5.5
Fig. 10.l
Note : together with the driver board, it is recommended to also
replace the corresponding piezoelectric transducer.