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Siemens Building Technologies
Basic Documentation QAA73.110 Room unit
CE1P2284en
HVAC Products
Description
of enduser settings
10.07.2002
3.16 Language
There is a choice of languages for the display.
1. Press the line selection buttons to select line 47.
2. Press the + / – buttons to select the required language.
Setting range
Factory setting
German, English ...
German
The assignment of other languages depends on the relevant software release. They
can be selected by pressing the + / – buttons again.
3.17 Indication of faults
The room unit indicates faults that may have occurred in the unit itself or in the system.
Faults cannot be reset. They will be cleared only when rectified.
Press the Info button to select Info line 2, or the line selection buttons to select line
50
.
If a fault is indicated, the fault / status code symbol flashes. The fault can be displayed
in clear text by pressing the Info button. The fault automatically displayed is always the
fault with the highest priority (most severe fault). If other faults are present at the same
time, the next fault with the highest priority will be displayed after the present fault has
been corrected.
In the case of a room unit-specific fault or a fault of Siemens boiler control, the error
code and appropriate error text will be displayed.
22
84
z25
Example of own fault display
In the event of a fault occurring on a boiler control system of other manufacture, the
error code delivered is preceded by #.
22
84
z26
Example of other fault display
Error code
Display QAA73.110
Description of error
0
No error
No error
10
OutsideSens
Fault outside sensor
60
Room sensor
Fault room sensor
100
TimeMaster
No valid external time (yearly clock)
118
W-Press low
Water pressure too low
124
Boiler temp
Alarm boiler temperature (too high)
131
Burn lockout
Fault burner
142
OpenTherm
Missing partner unit on LPB
150
BMU
General BMU fault
153
Interlock
Boiler control interlocked
162
AirPressSwi
Fault air pressure switch
Description
Line 47
Description
Info line 2 or line 50
Effect
Own displays
Other displays
Error code list
