87
➊
➋
➌
➍
➎
T/°C
T/°C
➋
➊
© STULZ GmbH – all rights reserved EN/06.2019/G57
C7000 INSTRUCTIONS fOR a/C UNITS
The corresponding commands:
Components/Air
Fan
In the unit series CyberRow three fans can be individually controlled.
The parameters "DTC Start" and "DTC range" are described in the context of
the differential temperature control in chapter 6.7.
Reduction according to the temperature
Enter the start temperature ➊ as a negative difference to the air temperature
setpoint.
setpoint
heating
start
Fan speed
Humidif.
ON
OFF
humidity
setpoint
%r.h.
humidif.
start
nmax or
nmaxCW
+ offset
Heating
ON
OFF
temp.
setpoint
heating
start
5.4.6 Air circuit, internal standard components
Determine the fan start speed by set-
ting the parameter "startspeed" as a
percentage of reduction
➋ from the
maximum speed.
Example:
Startspeed = 70%
The fan start speed is calculated as
follows:
n
start
= n
max
max
n
start
max
The start fan speed is gradually
obtained with a decreasing temper-
ature from the room temperature
setpoint to the adjusted temperature
difference
➊ below the setpoint. How-
ever, when heating or humidification is
requested, the airflow is increased to its
original value.
Alarm parameters:
fan start
speed
airflow alarm delay ➌
filter alarm delay
➍
Pressure drop control of an internal air filter
For an analog differential pressure sensor, which controls the pressure loss
through the pre-filter you can set a maximum value
➎ which generates an alarm
when it is exceeded.
To assign the differential pressure sensor correctly you must configure the sen-
sor with the purpose 24, 25 or 26.
fan 1 start 3
fan 1 speed 15
fan 1 alarmdelay 6
fan 1 filteralarmdelay 6
fan 1 lterpress 70
Operate
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