GB-20
Temperatures:
Heat generator Not reached 50-4
Heat generator Exceeded 50-5
Domestic hot
water
Not reached 51-4
Flow MC1 Not reached 52-4
Flow MC2 Not reached 53-4
Room HC Not reached 54-4
ROOM MC1 Not reached 55-4
ROOM MC2 Not reached 56-4
Data bus error
Address Address conflict 70-0
Activity No T2B-signal 70-1
EEPROM 71-0
EEPROM defective 71-1
Bus error Bus error 70-6
Fault in boiler control
Error Locking En: XX
Error Blockage Bn: XX
Explanation fault in boiler control:
En: XX
Alarm message register
The control unit is provided with an error
message level, which is able to hold up to five
alarms. The alarms are displayed with date,
time, and nature of fault (error number), the
errors are polled in the sequence of their
occurrence in the level
ALARM
.
The latest (= up-to-date) alarm is prioritized at
first position, alarms that have arrived before
appear in the order of their occurrence. Upon
arrival of a new alarm the fifth alarm will be
deleted.
The alarm messages of the MCBA are a
special case. Because they are external
errors, they are not saved in the internal error
message register of the control unit.
Plant information
Plants and system temperatures
After accessing the information level using the
information key
¤
, all available plant- and
system temperatures can be requested one
by one by turning the rotary pushbutton
clockwise.
If
set value
is displayed in the following table
in the category "display value", it will appear
when the rotary pushbutton is pushed.
The following displays only appear under the
specified display conditions. Some of the
displays are not available for certain unit
versions and are therefore skipped.
GB
Boiler error codes
(see boiler documentation)
Boiler
0 = Boiler 1
1 to 7 = Boiler 2 to 8 (Cascade)
E = Error
(B =Boiler blocking code)
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