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7.3
Heating
In the Status / Heating menu, the status of the demands and heating circuits acti-
vated as well as of the selected optional functions is indicated.
7.4
Messages
In the Status / Messages menu, error and warning messages are indicated.
During normal operation, the message Everything OK is indicated.
When a monitoring function from the function control is activated and detects a
fault condition, a corresponding message is indicated (see table).
A message consists of the name of the monitoring function, a 4-digit error code
and a short text description of the fault condition.
In order to acknowledge the message, proceed as follows:
Î
Select the code line of the desired message by pressing buttons
❷
and
❹
.
Î
Acknowledge the message by pressing button
➄
.
Î
Confi rm the safety enquiry by with Yes.
When the expert user code has been entered, the menu item Restarts will appear
below the messages. The number indicates how many restarts the controller went
through since commissioning. This value cannot be reset.
Messages
Error
code
Indication
Monitoring function
Cause
0001
!Sensor fault!
Sensor line break
Sensor line broken
0002
!Sensor fault!
Sensor short circuit
Sensor line short-circuited
0011
!
D
T too high!
D
T too high
Collector 50 K > than
store to be loaded
0021
!Night circulation! Night circulation
Betw. 11 p.m. and 5 a.m. col.
temp > 40 °C
0031
!FL/RE inter-
changed!
FL/RE interchanged
Col. temp. does not rise
after switching on
0041
!Flow r. monit.!
Flow rate monitoring
No fl ow rate at sensor -
0051
!Overpressure!
Overpressure monitoring
Max. system pressure
exceeded
0052
!Low pressure!
Low pressure monitoring
System pressure below
minimum
0061
!Data memory
defective
Storing and changing ad-
justments not possible
0071
!RTC!
Time-controlled functions
(e. g. night correction) not
possible
0081
!Store max. temp.!
Maximum store temper-
ature
St. max has been exceeded
Restarts
Restart counter (non-ad-
justable)
Number of restarts since
commissioning
Note:
The function control „fl ow and return interchanged“ according to the
VDI directive 2169 can only correctly detect and indicate the error „0031
!FL/RE INTERCHANGED!” if the collector sensor measures the temper-
ature directly in the fl uid at the collector outlet. If the collector sensor is
not correctly placed, a false message may occur.
Î
Place the collector sensor directly in the fl uid at the collector outlet
or deactivate the “fl ow and return interchanged” function control.
Содержание SC5.14
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