Operation Manual

51
EN
4. Place three AA batteries in the thermostat if required.
These are not provided. The batteries ensure that the
clock keeps running when the boiler is switched off.
The batteries also power the backlight for the thermostat for
boilers that do not have OpenTherm Smart Power. If you
have a boiler with Smart Power, then the backlight for the
thermostat also works without batteries.
(Thermostat RF only) Place 3 AA batteries in the thermostat.
These are required to operate the thermostat RF.
T001042-B
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The programs that are set are saved if the boiler or the thermostat is switched off
(even if there are no batteries).
The thermostat RF automatically starts communicating with the base station.
3.3 Location of the outside sensor
An outside temperature sensor is not supplied as standard with the thermostat.
You only require this sensor if you want weather-compensated control of the inside temperature.
The following guidelines apply with regard to choosing a location for an outside temperature sensor:
• Install the outside sensor on the north or north-west side of the home, away from direct sunlight.
• Thesensormustbepositionedatleast2.5metresabovegroundlevel.
• Donotinstalltheoutsidesensornearwindows,doors,ventilationgrills,extractors,etc.
Consult the documentation for your boiler for information on connecting an outside temperature
sensor.