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Siemens
Room Unit for Boiler Control
CE1U2283en
Building Technologies
Handling
2015-09-16
i
Displaying information
Various data can be displayed by pressing the info button.
Depending on the type of unit, configuration and operating state,
some of the info lines listed below may not appear.
Display:
Description
Name
Unit
- Boiler temperature
BOILR
°C
- Water pressure
P BAR
Bar
- Outside temperature
EXT T
°C
- Domestic hot water temperature
DHW
°C
- Domestic hot water temperature 2
DHW 2
°C
- Domestic hot water flow rate
DHWFR
l/min
- Relative boiler power
PWR
%
- Fan speed
S FAN
Rpm
- Exhaust temperature
T EXH
°C
- Return temperature
RETUR
°C
- Calculated flow temperature setpoint CH SP
°C
During boiler operation it is
possible to see the actual
boiler modulation level on 4
different levels.
The room unit indicates faults that may have occurred in the unit itself or in the
system
If a fault is indicated '
ERROR
' and the error code followed by the letter '
E
' are
visualized in the display.
These faults cannot be reset. They will be cleared only when rectified.
Error code Description
60
Room sensor
88
Communication
95
Clock
127
Legionella setpoint not reached 1)
1) Can be reset by pressing OK button
Depending on the type of boiler control, the room unit also displays other error
codes. For detailed information, please refer to the technical documentation of the
boiler controller used.
Indication of faults
Other fault displays
