Siemens AZL5 series

 Siemens AG Building Technologies Division CC1U7550.5en 20.07.2017 2/14
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Operational Stat Fault History 
Last 21 faults
Operational Stat Lockout History 
Last 9 lockouts
2
Param&Display Ratio Control  Gas Settings 
Curve Params
3
Example: Error history
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Display 5en
Fault class
Seventh last fault
Current type of fuel
Error code
Program phase
Diagnostic code
Load in %
Start number
For fixing the display, press
Selection error history
2
Example: Lockout history
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Display 6en
Fault date
Eighth last fault
Fault time
Diagnostic code
Error code
Program phase
Start number
Load in %
Current type of fuel
For fixing the display, press
Selection of error history