Stulz S-Klima C7000 - Page 38

BA C7000 for EC Tower | EN | 01-2019 | 1000755
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5 10 14 20 24 °C
➊
➋
➍
1K
T/°C
➊
➋
➌
➍
➌
➍
Operate
Water temp.
Dehumidification range
min max GE off
Components/humidity
Dehumidification
The start humidity for the dehumidification is entered as a positive difference to the room
humidity setpoint. ➊
To fundamentally block the dehumidifying function, the start humidity has to be set to
100 %.
The hysteresis for the dehumidification step is entered in the second line.➋
Adjusting the water temperature limits for the dehumidification relates to the possibility
of dehumidifying the air via a GE register using fan speed reduction. ➌➍
If the water temperature limits are exceeded, the controller switches to dehumidification
using the compressor operation.
Note:
The dehumidification speed is set in the Air/Fan menu.
On/Off control
Dehumid.
ON
OFF
Setpoint
%r.h
Dehumidification stop
Dehum.
ON
OFF
Temp.
setpoint
Dehumidification
When there is a dehumidification request with compressor operation, the full refrigerant
mass flow is required by the partial admission flow of the evaporator or by the airflow
reduction due to the drops below dew-point.
This also applies during compressor operation and speed reduction.
You determine the digital output for the dehumidification using the “D-OUT” parameter. ➌
In order to avoid a feedback circle of dehumidification and cooling, where the sinking
temperature causes an increased rel. humidity which then leads to a new dehumidification
request, you can enter a stop temperature ➍ which is set as a negative difference to the
air temperature setpoint and avoids dehumidification during a shortfall.
The dehumidification is switched on with a fixed hysteresis of 1 Kelvin as soon as the
room temperature rises above the stop temperature (+ 1 Kelvin) again.
Process of dehumidification for the EC tower (Size 1 and 2):
During a dehumidification request, the speed of the fan is reduced and the compressor
operation is converted to the nominal speed (100 %) (see “Config/Compressor/Dehumid.
speed” on page 28).
Process of dehumidification for the EC tower (Size 3):
During a dehumidification request, both compressors are converted to the nominal
speed (60 %).
Config