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Siemens  Standard application AHU  CE1P3977en_02 
Building Technologies  Functions  01.02.2010 
 
Main Index > Unit > Operating mode > Tmp start 
Parameter  Range  Function 
Room tmp setpoint 
-64.0…64.0 [°C]  Boost room setpoint. 
Start stpt cooling 
-64.0….64.0 [°C]  Start temperature for cooling. 
Start stpt heating  -64.0…64.0 [°C]  Start temperature for heating. 
Hysteresis  0.1…64.0 [°C]  Shutdown hysteresis. 
Compensation time  0…999 [min]  Time by which plant start is advanced. 
 
 
5.2.9  Optimum Start Stop Function 
 
Not yet available. 
 
 
5.3  Damper control 
5.3.1  General 
 
Dampers are enabled in configuration 1, configuration 2 and configuration I/Os, 
preconfigured and the inputs, outputs defined. 
Main Index > Configuration > Configuration 1 
Parameter  Range  Function 
Damper  –  No 
–  Combined 
–  Supply 
–  Supply+Exh 
–  No opening/closing of dampers. 
–  Two dampers with common output. 
–  Outside air damper with output. 
–  Two dampers with separate outputs. 
Fire damper  –  No 
–  Yes 
–  FollowUnit 
–  No fire dampers. 
–  Fire dampers. 
–  Fire dampers are opened with Unit Start or 
closed with Unit Stop. 
 
Main Index > Configuration > Configuration 2 
Parameter  Range  Function 
Damper fdbk  –  No 
–  One 
 
–  Two 
–  No damper feedback. 
–  Feedback for outside air dampers (or a common 
feedback for both dampers). 
–  Separate feedback for outside air and exhaust air 
damper. 
Fire damper fdbk   
–  Closed 
–  Clsd+Opnd 
–  Combined 
Fire damper feedback. 
–  Only one feedback for close. 
–  Two separate feedbacks for open and close. 
–  Two feedbacks for open and close, but only one 
signal. The syntax must be correct: 
1 (close) ---> 0 (moving) ---> 1 (open) 
 
Main Index > Unit > Damper Control 
Parameter  Range  Function 
Off delay by fanoff  0…36000 [s]  Switch-off delay for outside air, exhaust and fire 
dampers. The dampers are closed after this period 
after switching off the supply air fan. 
Parameter 
Prerequisite 
Enable 
Configuration 
Parameterization 
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
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