Bosch CR 400 Installation Instructions For Contractors page 17

Fig. 14, page 16
Item Symbol
8 auto
HC2auto
Summer (off)
HC2 Summer
(off)
manual
HC2manual
Holiday until 10/
6/2015
HC2Holiday until
10/6/2015
E
9
Table 6 Symbols on the standard display
CR 400 | CW 400 | CW 800
Designation Explanation
Operating mode System with one heating circuit in automatic mode (heating controlled by time
program).
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.
System with one heating circuit in summer mode (heating off, DHW heating
active)
The displayed heating circuit operates in summer mode (heating off, DHW
heating active). The standard display refers only to the displayed heating circuit
( operating instructions of the user interface).
System with one heating circuit in manual operation.
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 program active in system with one heating circuit (
instructions of the user interface).
The holiday program is active in the displayed heating circuit and possibly for
DHW systems (
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
External heat requirement
User interface A communication module is available in the system and a connection to the Bosch
status server is active.
The key block is active (hold down the auto key and the selector to activate or
deactivate the key block).
Basic principles of operation | 17
operating instructions of the user interface). The standard
operating
6 720 820 872 (2016/12)