Function Buttons And System Status; Reset Button; Chimney Sweep Button (Flue Gas Test); Key For Manual Operation, Emergency Operation - Bosch Condens 7000 F Operating Instructions For Users

5.3

Function buttons and system status

Function keys
The function keys enable:
• Manual operation
• Flue gas test
• Reset (e.g. high limit safety cut-out, SAFe)
System status, function status, component status
The status of the system, the functions and system components is
displayed via the status display ( Fig. 13, [2], [6], page 14) and the
LED status display ( Fig. 7, [10], page 10):
• Green = system in automatic mode
• Blue flashing = software update
• Green flashing = pairing (establishing connection with the control
unit)
• Yellow = system in manual mode, Flue gas test, Service display no
Internet connection available (if previously activated), Maintenance
or Blocking fault SAFe
• Yellow flashing = Control unit coupling
• Red = Fault
5.3.1

Reset button

Press the button to unlock the locking fault and reset the functions
(e.g. following triggering of the high limit safety cut-out or resetting of the
SAFe).
To unlock a function:
▶ Press and hold the key for 2 seconds.
When using separate burners, the burner control unit cannot be reset via
the key.
5.3.2

Chimney sweep button (flue gas test)

WARNING
Risk of scalding from hot water!
Setting the set temperature > 60 °C creates a risk of scalding.
▶ Do not draw off DHW unmixed.
To perform the flue gas test:
▶ Observe the relevant national requirements for limiting flue losses
from the heating system.
The Flue gas test can only be started by the control unit that is assigned
to the heat source.
If the operating mode Manual or the Manual operation button
been set, the flue gas test has priority. Once the flue gas test is complete,
the control unit switches back to manual operation.
If the heat source is integrated into a cascade, it will not be available for
the cascade during the flue gas test. A different heat source goes into
operation, depending on the dependencies and settings of the cascade.
The Flue gas test is switched on if required at the heat source
( Technical documentation of heat source) or at the control unit.
Condens 7000 F – 6720871579 (2022/10)
To ensure heat draw in the heating system:
▶ Briefly press
A message window opens to indicate the test is starting.
-or-
▶ Press the key and hold it down until the window showing the
settings used to perform the test opens.
To cancel the operation:
▶ Tap in the message window at the top on the right
The LED status display turns yellow ( Figure 8, [4], page 10). The
chimney sweep and attention symbol symbols appear in the header of
the system overview and in the header of the heat source.
• The Flue gas test is performed using the values specified in Settings
(minimum/maximum boiler temperature, minimum/maximum
performance).
• The maximum boiler temperature cannot be changed in the Flue gas
test.
• The heat source emits heat, providing the flue gas test is not aborted
or automatically stopped, until the maximum boiler temperature set
is reached.
• If a parameter (e.g. minimum boiler output) falls below or exceeds
the preset value when making the adjustment, a warning message
appears and must be confirmed. The parameter remains at the
previous value.
5.3.3

Key for manual operation, emergency operation

WARNING
Risk of scalding from hot water!
Setting the set temperature > 60 °C creates a risk of scalding.
▶ Do not draw off DHW unmixed.
Key for manual operation
Press the key to ensure a manual operation if, for example, the user
interface has dropped out or the internal controller communication is
disrupted. The heat source heats continuously without setback at a
boiler temperature of 60 °C. The pumps and mixers of the heating
circuits, the DHW heating of the central module and the function
modules continue running normally. The LED status display lights up
yellow.
Manual operation
The manual operation operating mode can be set and adjusted for every
function separately.
▶ Observe the operating instructions of the control unit.
Emergency mode
The emergency operation is activated automatically if the user
interface is faulty or if communication with the control unit via the
has
internal BUS is interrupted.
During emergency operation, the heat source heats continuously
without setback at a boiler temperature of 60 °C. All pumps connected to
the central module (boiler circulation pump, pump of heating circuit 00,
DHW pump and DHW circulation pump) are switched on.
The SR mixing valve is de-energised and must be adjusted manually if
necessary. The installed function modules cannot be triggered by the
user interface BCT531 and do not work.
In emergency operation the LED status display lights up red.
CC8313 control unit
key.
.
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