6 720 820 872 (2016/12)
CR 400 | CW 400 | CW 800
Basic principles of operation | 17
8
auto
Operating mode
System with one heating circuit in automatic mode (heating controlled by time
program).
HC2auto
The displayed heating circuit operates in automatic mode. The standard display
refers only to the displayed heating circuit. Pressing the man key, the auto key
and changing the required room temperature only affects the heating circuit
displayed.
Heating mode active in automatic mode in the displayed heating circuit.
Setback mode active in automatic mode in the displayed heating circuit.
Summer (off)
System with one heating circuit in summer mode (heating off, DHW heating
active)
HC2
Summer
(off)
The displayed heating circuit operates in summer mode (heating off, DHW
heating active). The standard display refers only to the displayed heating circuit
(
Æ
operating instructions of the user interface).
manual
System with one heating circuit in manual operation.
HC2manual
The displayed heating circuit operates in manual operation. The standard display
refers only to the displayed heating circuit. Pressing the man key, the auto key
and changing the required room temperature only affects the heating circuit
displayed.
Holiday until 10/
6/2015
Holiday program active in system with one heating circuit (
Æ
operating
instructions of the user interface).
HC2Holiday until
10/6/2015
The holiday program is active in the displayed heating circuit and possibly for
DHW systems (
Æ
operating instructions of the user interface). The standard
display refers only to the displayed heating circuit.
Heating is completely off (all heating circuits)
Chimney sweep mode is active (if the user interface is installed in the heat source,
simultaneously press and hold the info and return keys for a longer time to
activate the chimney sweep mode).
Emergency operation is active
E
External heat requirement
9
User interface
status
A communication module is available in the system and a connection to the Bosch
server is active.
The key block is active (hold down the auto key and the selector to activate or
deactivate the key block).
Æ
Fig. 14, page 16
Item
Symbol
Designation
Explanation
Table 6 Symbols on the standard display
Summary of Contents for CR 400
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