121
EN
21. Carrying out a hardware reset
i
A hardware reset can be carried out in the event that the
DuoFern Room Thermostat 9485 no longer react to commands.
1.
To do so, pull the operating unit out of the installation housing.
2.
Two contacts, which must
be carefully bridged for a
few seconds, for example,
with the help of a flat-head
screwdriver, are located in
the centre of an opening
on the rear of the operating
unit.
ATTENTION!
Risk of damage due to the overheating or excessive cooling
of the room or flooring.
The relay output remains unchanged if the operating unit is
pulled out of the installation housing during operation. Control
and limiting functions where appropriate are no longer provided.
◆
Make sure that a relay state that poses no risk is set before
removing the operating unit.
◆
Switch off the central heating or air conditioning
beforehand if necessary.
