6 720 820 872 (2016/12)CR 400 | CW 400 | CW 800
Basic principles of operation | 15
Æ Fig. 13, page 14
Item Element Designation Explanation
1 fav key ▶ Press to call up the favourites functions for heating circuit 1.
▶ Press and hold to individually adjust the favourites menu
(Æ user interface operating instructions).
2 man key ▶ Press to activate manual operation for a permanent room temperature set value.
▶ Hold to activate the input field for the duration of the manual operation (maximum
48 hours from current time).
3 auto key ▶ Press to activate the automatic mode with the time program.
4 menu button ▶ Press to open the main menu.
▶ Hold to open the service menu.
5 Info key If a menu is open:
▶ Press to call up more information about the current selection.
If the standard display is active:
▶ Press to open the info menu.
6 Back key ▶ Press to return to the higher menu level or discard a changed value.
If the need for a service or a fault is displayed:
▶ Press to switch between standard display and fault display.
▶ Hold to switch from a menu to the standard display.
7 Selector ▶ Turn to change a setting value (e. g. temperature) or select from among the menus or
menu items.
If the backlighting is turned off:
▶ Press to turn on the backlighting.
If the backlighting is turned on:
▶ Press to open a selected menu or menu item, confirm a set value (e. g. temperature)
or a message or to close a pop-up window.
If the standard display is active:
▶ Press to activate the input field for selecting the heating circuit in the standard
display (only systems with at least two heating circuits, Æ operating instructions of
the user interface).
Table 5 Control elements
fav
man
auto
menu
info
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