Key For Manual Operation, Emergency Operation - Bosch Control 8313 Service Instructions For Contractors

If a preset parameter (e.g. minimum boiler output) is exceeded or
undercut when making the adjustment, a warning message appears that
must be confirmed. The parameter remains at the previous value.
To exit the view:
▶ Tap Cancel.
The flue gas test continues.
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2
Fig. 12 Flue gas test
[1] Save
[2] Cancel
[3] Modulation
The LED status display ( Fig. 11, [4], page 14) lights up yellow during
the flue gas test and is accompanied by a constantly recurring pop-up
window.
To conclude the flue gas test:
▶ Press key again.
If the flue gas test is not ended manually, it ends automatically after
30 minutes.
7.3

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 the "Manual operation" operating mode is
available if e.g. the user interface has failed or the internal control unit
communication has been 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.
Control 8313 – 6720859567 (2017/03)
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0010009474-001
Emergency operation
The "emergency operation" operating mode is activated automatically if
the user interface is faulty or if communication with the control unit via
the internal BUS is interrupted.
In the "emergency operation" operating mode, 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
BCT531 user interface and do not work.
The LED status display lights up red in the "emergency operation
"operating mode.
Function keys of the user interface
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