HomeMatic HM-CC-TC, Installation And Operating Manual

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7.6 Freeze protection mode
Select this operating mode if the room is not to be heated at all.
s¬ 4HE¬VALVE¬IS¬CLOSED¬AND¬REMAINS¬IN¬THIS¬POSITION
s¬ 4HE¬VALVE¬IS¬ONLY¬OPENED¬WHEN¬THERE¬IS¬A¬DANGER¬OF¬FREEZING¬
TEMPERATURES¬UNDER¬¬ª#
s¬ 4HE¬WEEKLY¬CALCIlCATION¬PROTECTION¬IS¬CONTINUED
To close the valve, switch manual mode ("Manu") with the
"Menu" button and turn the setting dial to the left until "OFF"
appears on the display.
7.7 Button lock
In order to protect the device from accidental, incorrect adjust-
ments, a lock function has been integrated for the buttons and
the setting dial.
You can activate the lock by pressing buttons "Menu" and "OK"
simultaneously. The display shows "LOC" and all operational
functions are locked.
In order to deactivate the lock function, press the buttons
"Menu" and "OK" simultaneously and hold them down until
"LOC" disappears from the display.
7.8 Lowered mode with open windows
If shutter contacts or window rotary handle sensors are installed,
they indicate the door or window status. If status "Door open" or
"Window open" is reported to the heating controller, the window-
open temperature that can be adjusted for each individual sensor
is used as the set temperature. In this case, the window-open
temperature for the sensor that was triggered last applies!