Bosch Condens 8300i W Installation And Maintenance Instructions Manual page 32

Settings in the service menu
Menu 4: Settings
▶ Press the ( key and * key simultaneously until the display shows
L.1.
▶ Press the  key repeatedly until L.4 appears.
▶ To confirm the selection: press OK key.
▶ Selecting and setting the service function.
Service function
4-A1 Venting function
4-A2 Siphon filling program
4-A3 3-way valve centre position
4-A4 Type of maintenance
4-A5 Burner runtime
4-A6 Hours run
4-b1 Device-internal weather-compensated
control
4-b2 Outside temperature limit for automatic
changeover between summer and winter
mode.
32
The factory settings are depicted as highlighted in the following table.
Settings/adjustment range
• 0
• 1: Switched on once (At the end of ventilation,
the setting reverts to the "0" status.)
• 2: Switched on permanently
• 0: (only permissible during maintenance)
• 1: switched on with minimum appliance
output
• 2: Switched on with minimum heating
capacity
• OFF
• ON
Setting the service display
• 0
• 1: By burner runtime
• 2: By date (with heating controller)
• 3: acc. to hours run
• 10 ... 60 (= 1000 ... 6000 h)
• 12 ... 72 months
• OFF
• ON
• 0 ... 16 ... 30 °C
Remark/restriction
The venting function can be switched on after
maintenance work.
During ventilation, the symbol and flow
temperature appear alternately in the display.
The siphon filling program is activated
automatically in the following cases:
• Once the device is switched on using the On/
Off switch
• Once the burner was not in operation for at
least 28 days
• Once the operating mode is switched from
summer to winter mode
• Once the factory settings of the device have
been restored
The next time there is a heat requirement for
heating, the device is held at low thermal output
for 15 minutes. The siphon filling program
remains active until the device was in operation
with low heat output for 15 minutes.
The symbol and flow temperature appear
alternately in the display for the duration of the
siphon filling program.
To fill the heating system
This service function is only available if service
function 4-A4 is set to 1 Burner runtime.
After this interval has expired, the display
indicates that an inspection is due via the service
display 1018.
This service function is only available if service
function 4-A4 is set to 3 (Operating hours).
After this interval has expired, the display
indicates that an inspection is due via the service
display 1018.
This service function is only available if an outside
temperature sensor is detected in the system.
This service function is no longer available when a
weather-compensated control unit with EMS
connection is connected.
This service function is only available if service
function 4-b1 is activated.
If the outside temperature exceeds the set
temperature limit, the heating is switched off
(summer mode). If the outside temperature falls
to at least 1 K ( °C) below the setting, the heating
is switched back on (winter mode).
Condens 8300i W – 6721841533 (2022/12)