Siemens Climatix Series Basis Document page 66

Prerequisite
Enable
Parameter
Fan comp room tmp
Function
Parameterization
Parameter
Controller
Setpoint
Function
Example
Prerequisite
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Basis Document Siemens Climatix Control System
Siemens
Page 66
BDCX.100820.01GB
Building Technologies
5.5.7 Fan compensation
Fan cmp room tmp enabled in configuration 2. No settings required for I/Os in con-
figuration 1 and configuration.
Main Index > Configuration > Configuration 2
Range
– No
– Yes
The controller output reduces or increases the fan setpoint relating to the maximum
allowable fan compensation (See as well Fan compensation).
The fan setpoints are increased or reduced if the room temperature is below the
setpoint when KP>0 or if the room temperature is above the setpoint when KP<0
(heating/cooling behavior).
Main Index > Unit > Temperature control > Fan compensation
Range
0...100 [%]
0...99 [°C]
– Increase
– Decrease
– Room temperature setpoint: 22 °C.
– Present room temperature: 20°C.
---> Controller output > 0 % (e.g. 50 %).
Switch function: Increase
The controller output increases the fan setpoint relating to the maximum allowable
fan compensation (See as well Fan compensation).
– Setpoint supply air pressure: 80 Pa (maximum possible setpoint = Setpoint of
the maximum enabled stage + Max Force, e.g. = 120 Pa).
– Maximum allowable fan compensation (100 % compensation): 40 %.
– Controller output: 50 %.
---> New setpoint = 80 Pa + (40 Pa * 50 %) = 100 Pa.
Switch function: Decrease
The controller output reduces the fan setpoint relating to the maximum allowable
fan compensation (See as well Fan compensation).
– Setpoint supply air pressure: 80 Pa (maximum possible setpoint = Setpoint of
the maximum enabled stage + Max Force, e.g. = 120 Pa).
– Maximum allowable fan compensation (100 % compensation): 40 Pa.
– Controller output: 50 %.
---> New setpoint = 80 Pa – (40 Pa * 50 %) = 60 Pa.
5.5.8 Combi coil
One heating register water and one cold water register for cooling is enabled.
Main Index > Configuration > Configuration 1 > Heating <> No
Main Index > Configuration > Configuration 1 > Cooling = Water
Standard application AHU
Functions
Function
Room-temperature dependent fan compensation.
Function
Present value for the controller. Go to controller set-
tings page.
Controller setpoint relating to the room temperature.
– Increase the fan setpoint.
– Reduce the fan setpoint.
CE1P3977en_02
01.02.2010