This symbol indicates important information Product information where there is no risk to people or property. The user interfaces CR 400, CW 400 and CW 800 are collectively referred to as C 400/C 800. Additional symbols The C 400 user interface makes it easy to operate your C 800 heating system.
– The user interface sets the flow temperature in user interface, the texts shown in the display may differ from accordance with a simplified or optimised heating the texts in these instructions. curve. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Pressing the selector for the first time [5] Info key only activates the backlighting. If no control [6] Back key element is actuated, the backlighting turns off [7] Selector automatically. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 6
▶ Press to activate the input field for selecting the heating circuit in the standard display (systems with at least two heating circuits only, Chapter 4.1, page 9). Table 3 Control elements 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 7
DHW heating active. DHW heating is switched off. Burner is on (flame). Heat source is blocked (e.g. by an alternative heat source). Table 4 Symbols on the standard display CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 8
Chapter 5.5, page 31). The standard display refers only to the displayed heating circuit. User interface A communication module is available in the system and a connection to the Bosch status server is active. The key lock is active (hold down the auto key and the selector to activate or deactivate the key lock).
Note: If the control type constant is set for a heating circuit (e.g. swimming pool or ventilation unit), there is no manual operation in this heating circuit. 6 720 815 237-03.1O Table 6 Getting started – Activating operating modes CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
– Wait a few seconds or press the selector to close the pop-up window. – Press the auto key. The change is undone. Table 7 Getting started – Room temperature 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 11
The room temperature that is currently valid is shown in a pop-up window in the lower part of the display. The user interface operates with the modified settings. Table 7 Getting started – Room temperature CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
When the key block is enabled, the key symbol appears in the display Fig. 2 [5], page 7). Table 8 Getting started – More settings 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 13
In the Heating > Time program menu, the time program can be adapted to suit your personal lifestyle habits or circumstances in just a few easy steps Chapter 5.3.2, page 21). 6 720 815 237-14.1O Table 8 Getting started – More settings CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
▶ If Yes is highlighted, press the selector to deactivate the emergency operation. The system reverts to normal operation. 6 720 815 820-96.1O Table 9 Getting started – Emergency operation 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
▶ Turn and press the selector to activate the heating (On) or to cancel the selection (Off). The changes are effective immediately. 6 720 815 820-64.1O ▶ Press the Back key to close the menu. Table 10 Getting started – Activating/deactivating heating/DHW CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
▶ Turn and press the selector to select a function (Yes) or to cancel your selection (No). The changes are effective immediately. ▶ Press the Back key to close the menu. 6 720 811 136-15.1O Table 11 Getting started – Favourites functions 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Different levels are only available with type of time interface (MX 25) is installed. program. Only available with a constant heating circuit. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Table 12 Main menu summary 1) This menu item is only available if control type Constant is set for a heating circuit. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
The most recent change to the operating mode in this heating circuit (on the CR100 or the C 400/C 800) is always the valid setting. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 20
(if two or more heating circuits are installed, it is only applied in the selected heating circuit). Table 15 Heating and setback mode/setback threshold for adapting the automatic mode to suit individual preferences 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
(My time program 1 or My time program 2). Table 16 Time program settings for heating CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 22
6 720 815 237-26.1O Table 17 Activating and selecting time programs for the heating system 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 23
▶ Turn the selector until the empty input field underneath the last switching time is highlighted. 6 720 815 237-31.1O Table 18 Adapting time program to suit individual heating preferences CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 24
▶ Press the selector to close the pop-up window. The user interface operates with the modified settings. Table 18 Adapting time program to suit individual heating preferences 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
For constant heating circuits (e.g. for a swimming pool or a ventilation unit) the switching between summer and winter modes is not available. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
DHW system I or II in the same way as for installations with one DHW system. However, changes made in the respective menu are valid only for the selected system. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
05:00 (from 07:00 on Saturdays and Sundays) until 23:00 (time program default settings). If DHW heating is via a combi boiler, the keep hot function is CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 28
DHW heating is active without interruption. Depending on the installed system, it may 6 720 815 237-42.1O be necessary to select a DHW system. Table 24 Adapting the settings for DHW heating 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
The minimum duration of a time slot between two switching times is 15 minutes. Table 25 Settings for the circulation CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
During the holiday period, the display indicates until this heating circuit. when the holiday program will be active. 6 720 815 237-45.1O Fig. 4 Standard display during holiday period CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 32
(Reduced mode, Outside temperature threshold, Room temperature threshold starting on page 42). Table 28 Settings for holiday programs 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 33
▶ Open the menu for the holiday program. ▶ Turn the selector to highlight Selection heat. circ./DHW. 6 720 815 237-48.1O Table 29 Setting up, interrupting or deleting a holiday program CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 34
▶ A message is displayed in a pop-up window indicating which holiday program has been deleted. 6 720 815 237-51.1O ▶ Press the selector. The holiday program is deleted. Table 29 Setting up, interrupting or deleting a holiday program 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
The next time you log in, e.g. using an App you will automatically be prompted to assign a new password. Table 30 General settings CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
▶ Press the Back key to return to the next higher menu level. hybrid system or hybrid appliance (e.g. ODU 75 WPLSH). ▶ Press and hold the Back key to return to the standard display. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 37
Operating Currently valid operating mode in the Mode selected heating circuit (Off, Heating, Setback, Summer, Holiday or Manual) Table 31 Information about the heating CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 38
6 720 815 237-54.1O Table 34 Calling up information about the solar system 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 39
The diagram shows the outside temperature profile for the last 2 days (more detailed information, Chapter 6, page 36). 6 720 815 237-56.1O Table 35 Information about the outside temperature call up CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Page 40
Operating code Displays the appliance status in the form of an operating code (e.g. standby period active) or a fault code Table 37 System information 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
If windows are left ajar heat dissappears continuously from the room without the air in the room become much better. Close the thermostat valves while airing the room. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
• Reduced mode: to reach a low room temperature setting, the pump continues to run even if the heating is reduced. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
The system keeps operating as far as possible; in other words, system is in heating of the home can continue. operation. Table 39 Eliminating "sensed" faults 1) See operating instructions of the heat source for further information. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 45
Submit error code, additional code and control unit ID number. Table 41 The control unit ID number must be filled in here by the installer at installation. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)
Heating phase devices, you should use the return and collection systems put A time slot during automatic mode, with Heating operating in place in the country concerned. mode. 6 720 820 871 (2016/12) CR 400 | CW 400 | CW 800...
Page 47
This function heats up the hot water to a temperature in excess of 65 °C. This temperature is sufficient to kill off pathogens (e.g. legionella). Observe the anti-scalding safety instructions. CR 400 | CW 400 | CW 800 6 720 820 871 (2016/12)