Vemer Dafne User Manual page 35

The programmable thermostats of Dafne series have a backlit display with led.
There are some differences between battery powered models and mains powered
models.
The battery powered model has a backlighting of blue colour, which is activated only
inside any menu of programming or if any key is pressed. In normal operating status
the backlighting is off.
This behaviour is not modifi able.
The 230 V powered model has a blue backlighting which is normally on.
If the installation makes it necessary (for example in bedrooms) the
backlighting can be turned off. In this condition the programmable thermostat
will continue to operate normally and the backlighting activates only when you
enter setpoint modifi cation, advanced programming, pin insertion menu.
It's possible to turn off the backlighting by pressing the key
To reactivate the backlighting press the key
3s
3s
for at least 3 seconds.
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Dafne programmable thermostat, user's manual
for 3 seconds.