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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
Page 60
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