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Siemens
Standard application AHU
CE1P3977en_02
Building Technologies
Functions
01.02.2010
5.5.2 Temperature setpoints
Displays only the functions enabled in configuration 1 or configuration 2. All other
functions are hidden.
Main Index > Unit > Temp control > Tmp setpoints
Parameter
Range
Function
Act controlled tmp
---
Present temperature used for control.
Eight supply air, room or return temperature depending on
the setting and control type.
Act cooling stpt
---
Present calculated room or supply air setpoint for cooling.
Act heating stpt
---
Present calculated room or supply air setpoint for heating.
Act sply clg stpt
---
Present calculated supply air setpoint in cooling for a cas-
cade control.
Act sply htg stpt
---
Present calculated supply air setpoint in heating for a cas-
cade control.
External setpoint
---
Present external setpoint or setpoint compensation.
Sply air comp
-10.0…10.0 [°C]
Setpoint compensation for winter operation for:
Tmp control mode = RmSplyC Su (Room supply air cas-
cade control in summer, pure supply air control in winter).
or
Tmp control mode = RtSplyC Su (return supply air cas-
cade control in summer, pure supply air control in winter).
The room setpoint for cascade control, active in the sum-
mer, are active (summer - winter changeover).
During winter, these room setpoints must be adapted to
the supply air control.
Comfort setpoint
0…99 [°C]
Comfort based setpoint. Only available when Tmp stpt
selection = +/-Half degree Celsius.
Comfort cooling
0…99 [°C]
Comfort cooling setpoint. Only available when Tmp stpt
selection = Htg/Clg or Clg-degrees Celsius.
Comfort heating
0…99 [°C]
Comfort heating setpoint. Only available when Tmp stpt
selection = Htg/Clg or Htg-degrees Celsius.
Comfort deadzone
0…20 [°C]
Comfort dead zone. Only available when Tmp stpt selec-
tion = Clg-degrees Celsius or Htg+degrees Celsius or +/-
Half degree Celsius.
Economy setpoint
0…99 [°C]
Economy base setpoint. Only available when Tmp stpt
selection = Spv+Halfdegree Celsius.
Economy cooling
0…99 [°C]
Economy setpoint for cooling. Only available when Tmp
stpt selection = Htg/Clg or Clg-degrees Celsius.
Economy heating
0…99 [°C]
Economy setpoint for heating. Only available when Tmp
stpt selection = Htg/Clg or Htg-degrees Celsius.
Economy deadzone
0…20 [°C]
Economy dead zone. Only available when Tmp stpt selec-
tion = Clg-degrees Celsius or Htg+degrees Celsius or +/-
Half degree Celsius.
Extra Seq setpoint
0…99 [°C]
Setpoint for Heating 2, El Heating 2, Cooling 2 if config-
ured as stand alone.
Supply tmp min stpt
15.0… Supply tmp
max stpt [°C]
Lower allowable supply air temperature for pure room or
return air control with additional available supply air sen-
sor. Limited control of the cooling setpoint occurs if the
supply air temperature < Supply tmp min. The heating reg-
ister is started if this is not enough.
Supply tmp max stpt
Supply tmp min stpt
… 50.0 [°C]
Highest allowable supply air temperature for pure room or
return air control with additional available supply air sen-
Prerequisite
Parameterization
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
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