55 / 244
Siemens Standard application AHU CE1P3977en_02
Building Technologies Functions 01.02.2010
Max forcing 0...(100-Stage max.) [%]
0...(40'000-Stage max.) [l/s]
0...(5000-Stage max.) [Pa
Depends on control type (fan control mode <> Direct or
DirectVar): The maximum possible fan compensation is
derived from the following formula:
Stage max. + Max forcing - Stage x [%], [l/s], [Pa]
(See Fan compensation).
Min runtime 0…36000 [s] Define the minimum runtime for the fan after a start.
Switch on
delay
0…36000 [s] For supply air fan only!
Defines switch-on delay for the supply air fan after a ex-
haust fan start.
Start up delay
fdbk
0…36000 [s] Defines the period after a fan start without feedback before
a feedback alarm is triggered. Jitter time is enabled exclu-
sively if the feedback is pending after this period.
Deviation
alarm
– Passive
– Active
Condition: Fan control mode <> Direct, DirectVar or
FixedSpd.
Present state for the setpoint/actual value monitoring of the
supply air pressure (or volume). Go to parameter page for
supply air monitoring.
– No alarm.
– Alarm pending.
Feedback can only be used as alarm, when Contact function = NO (Normally
Open) and the element is set to ON.
5.4.4 Summer/Winter compensation
– An outside air temperature sensor must be available:
Main Index > Configuration > Configuration 1 > Outside tmp sensor = Yes.
– Summer/winter compensation must be enabled:
Main Index > Configuration > Configuration 2 > Fancomp Outsidetmp = Yes.
• Summer compensation: Adjustment to setpoint relevant to control when the
outside air temperature is high during the summer.
• Winter compensation: Adjustment to setpoint relevant to control when the out-
side air temperature is low during the winter.
Note
Prerequisites
Function
Setpoint compensation
during summer
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 55
To Next Page
Loading...
