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Siemens  Standard application AHU  CE1P3977en_02 
Building Technologies  Communication  01.02.2010 
Main Index > Integrations/Room units > Settings 
Parameter  Range  Function 
Room tmp sensor  −  1 sensor 
−  2 sensors 
−  1 RU 
−  1snsr+ RU 
−  2 RU 
Display the room sensor combination selected. 
Displayed Alarm  −   
−  none 
–  event 
 
 
 
 
–  permanent 
Alarm display on room unit. 
−  Only the alarm symbol flashes for an alarm. 
−  The alarm symbol and alarm number flashes 
for an alarm. After pressing any button, the 
entire display returns and only the alarm sym-
bol flashes. 
−  For an alarm, the alarm symbol flashes and 
the alarm number is displayed instead of the 
clock as long as the alarm is pending. 
Displayed temp   
−  RmUnit 
−  RoomMix 
 
−  Exhaust 
Temperature display. 
−  Own, measured in the room unit.  
−  Set in configuration 2 with room tmp mix. 
−  Exhaust temperature 
Eng system temp   
 
−  Target 
−  Metric 
−  Imperial 
Temperature display in the room unit. 
 
−  The valid one for the controller. 
−  Metric system for the room unit. 
−  Imperial system for the room unit. 
Stpt range +/-  0.0…..12.0 [K]  Maximal possible setpoint adjustment. 
Stpt increment  −  0.1 [K] 
−  0.5 [K] 
Setpoint adjustment increment. 
Hrec display lim  0…100 [%]  Threshold to show energy tracking symbol on 
the display. The symbol is displayed for value 
Efficiency > Hrec display lim. 
Manual control   
 
−  No 
–  Yes 
Enable mode button to changeover operating 
mode on the room unit. 
−  Changeover is locked. 
−  Changeover is enabled. 
Presence time   0…23 [h]  Runtime presence. Plants goes to auto mode 
after the delay. 
Back2Auto Off-Eco   
 
 
−  Off 
–  On 
Reset setpoint adjustment and presence for 
change in time switch command from Off > 
Economy. 
−  Reset locked.  
−  Reset enabled. 
Back2Auto Off-Cmf   
 
 
−  Off 
−  On 
Reset setpoint adjustment and presence for 
change in time switch command from Off > 
Comfort. 
−  Reset locked.  
−  Reset enabled. 
Back2Auto Eco-Cmf   
 
 
−  Off 
−  On 
Reset setpoint adjustment and presence for 
change in time switch command from Economy 
> Comfort. 
−  Reset locked.  
−  Reset enabled. 
Back2Auto Cmf-Eco   
 
Reset setpoint adjustment and presence for 
change in time switch command from Comfort > 
Settings 
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 132