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OPERATION USING A LAPTOP
E:22
=
Air pressure switch does not open
(not used)
E:23
=
Air pressure switch does not close
(not used)
E:24
=
Flame detected without reason
Appears when a flame is detected, although the gas valve is closed.
E:25
=
Flue gas temperature too high
Appears if the flue gas temperature limit, set under Parameter 13, is exceeded.
E:26
=
Safety limit thermostat activated
If the safety limit thermostat is activated, this causes immediate blocking, which changes to a lock-out if the situation
persists for more than 30 seconds (X9-1/X9-6).
E:27
=
Internal error in automatic firing device
E:28
=
Several gas pressure drops during start-up
Appears if the gas pressure switch is released on four consecutive start-up attempts within the safety time (immedi-
ately after opening of the gas valve)
7.
Operation using a laptop
An interfacing cable can be connected from a laptop to socket X11 on the automatic firing device in order to set pa-
rameters and/or monitor the system. SITBIC960lab software offers several options for reading in formation from the
automatic firing device and for inputing settings.
The following basic functions are available:
Printing parameter settings
Saving parameter settings in a text file
Downloading parameter settings from the connected automatic firing device
Loading parameter settings to the connected automatic firing device
Open saved parameter settings
Save parameter settings in a file
Load fault data from the automatic firing device
Save fault data in a file
Recall saved fault data
Status display to show the most important information
Diagram mode for displaying and saving the trends of the system values
Change language
Restriction of user level using code input
Due to the presence of different automatic firing unit versions there are various SITlab versions. Each of the SITlab
versions recognizes, prior to calling up parameters from a file (prior to loading to or from the automatic firing unit)
whether the correct SITlab version is in use. The utilized SITlab version would have to be changed in the event of an
appropriate error message.
It is important when using SITlab software that the fan must be at standstill when loading parameters (from or to the
automatic firing unit), otherwise there must be an interlocked fault at the automatic device.
8.
Interfaces to BIC 960
The BIC 960 automatic firing device has a RS485 interface for communication with the heating controller. Connec-
tion to a laptop occurs via the RS232 interface (X11).
