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Hummel Premium - Child-Proof Lock;Operating Inhibit; Comfort and Set-Back Temperatures; Setting the Heating Break

Hummel Premium
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18. Comfort and set-back temperatures
The comfort/set-back temperature button ( ) provides an easy
and convenient way of switching between these two temperatures.
The factory settings are 21.0°C and 17.0°C respectively. To adapt
them, proceed as follows:
• Press and hold down the comfort/set-back temperature but-
ton ( ) for more than 3 seconds.
• The sun symbol ( ) will appear on the display along with the cur-
rent comfort temperature.
• Use the setting wheel to modify the temperature; press OK to conrm.
• The moon symbol ( ) will appear together with the set-back temperature.
• Use the setting wheel to modify the temperature; press OK to conrm.
The temperature can even be modied in Auto mode at any time
by using this button. The new setting will be retained until the pro-
gram’s next switching time.
19. Child-proof lock/Operating inhibit
Operation can be inhibited.
• To activate/deactivate the operating inhibit, briey press
the Menu and buttons at the same time.
• Once the function is active, “LOC” will appear on the display.
• To deactivate the function, press both buttons again.
20. Setting the heating break
If the heating is being switched off for the summer, you
can save battery power. This involves opening the valve
up fully. Limescale protection measures remain in place.
Wireless commands from the window contact or remote
control will no longer be executed.
• To activate the heating break, turn the setting wheel
clockwise during manual operation (Manu) until On”
appears on the display.

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