Bosch CW 800 - 3 Fault Display Menu; 4 System Information Menu; 5 Maintenance Menu

6 720 820 872 (2016/12)CR 400 | CW 400 | CW 800
Service menu | 47
• The current System flow temperature
• the current temperature in the heat exchanger Heat
exchanger temp.
• The current Actual DHW temp.
• the Act DHW temp cyl bottom function shows the current
value of the DHW temperature of the DHW cylinder in the
lower part. The current DHW flow
• The current Inlet temperature of the water when a
stratification cylinder is installed
• The current Outlet temperature of the water when a
stratification cylinder is installed
• The power consumption of the Prim. cylinder pump and
the Sec. cylinder pump with an external stratification
cylinder via MS 100/MS 200
• The 3-way valve is either set to DHW or to Heating.
• the Therm. disinf. DHW cyl. function shows whether the
automatic thermal disinfection of the DHW cylinder is
active.
7.6.3 Fault display menu
The current faults and the fault history can be called up in this
menu.
7.6.4 System information menu
The software versions of installed BUS units in the system are
displayed in this menu.
7.6.5 Maintenance menu
You can set a maintenance interval in this menu. The user
interface shows a service display with fault codes. The end
customer can notify you to arrange an appointment
(Æ Chapter 8, page 48).
Menu item description
Active faults All current faults that are present in the
system are displayed here according to
their severity.
Fault history The last 20 faults are displayed here,
sorted in order of the time of
occurrence. The fault history can be
deleted in the Reset menu
(Æ Chapter 7.6.6, page 48).
Table 21 Information in the fault display menu
Menu item description
Service display How are service displays triggered: no
service display, by burner runtime by
date or by elapsed time? If available
maintenance intervals can be set at the
heat source.
Service date A service display will appear on the date
set here.
Runtime service
display
After expiry of the number of months set
here (elapsed time), in which the heat
source was supplied with power, a
service display will appear.
Boiler runtime After expiry of the burner runtime
(hours run with switched-on burner) a
service display will appear.
Table 22 Settings in the maintenance menu