125
EN
23. Dismantling
i
DANGER!
There is a risk of fatal electric shock when touching
electrical components.
◆
Disconnect all phases of the mains power cable and secure
it to prevent any reconnection. Check that the system is
de-energised.
1.
Log the DuoFern Room Thermostat 9485 off the DuoFern
network.
2.
Switch off the mains power, secure it from restarting and check
that the system is de-energised.
3.
Carefully pull the operating unit out of the installation housing.
4.
Remove the frame.
5.
Release the claw fasteners of the installation housing and pull it
out of the flush-mounted box.
6.
Disconnect the connecting cable from the installation housing.
7.
Secure the connection point against restarting and the
connecting cable from unintentional contact.