31
➊
➋
n
pre-r.
n
min
➌
➎
➍
➓
BA C7000 for EC Tower | EN | 01-2019 | 1000755
Config
Components/Cooling
Compressor/more/more
The initialization time ➊, which you can adjust in the first line, serves to await the initial-
ization phase of the outdoor unit. The initialization time begins as soon as the controller
is supplied with voltage. During the initialization time, no alarms are monitored. For the
initialization time to function properly, it is important that the outdoor unit is supplied with
voltage at the same time as the controller.
You can adjust the pre-runtime ➋ in the second line. The pre-runtime must be adjusted
depending on the compressor type. The pre-runtime begins as soon as there is a cooling
request as a result of the summer start temperature being reached.
The pre-runtime speed ➌, which you can adjust in the third line, is the speed at which
the compressor is operated during the pre-runtime.
The run-on time ➍, which you can adjust in the fourth line, can be used to achieve a
minimum running time between two compressor starts.
If the room temperature is under the setpoint and if the compressor is operated at the
set minimum speed, the run-on time begins. After the run-on time has elapsed, the
compressor is switched off.
You can adjust the minimum speed ➎ of the compressor in the fifth line.
Adjust the dehumidification speed ➏ of the compressor in the sixth line.
You can adjust the proportional factor ➐, the integral factor ➑ and the differential factor
➒ in lines 7 to 9.
Compressor speed
Range of the
PID control
Initialization time
Pre-runtime Run-on time
Time
The following parameters can only be adjusted using commands:
Establishing an analog output for the control signal.
Establishing a digital input for the operating state signal from the external compressor.
Note
When there are low heat loads in the room, the dehumidification speed ➏ has to be re-
duced in order to achieve a suitable control behavior. If the value for the dehumidification
speed is selected too low, there is no dehumidification.
Summer start temperature
reached
Room temp. < Setpoint
and nmin reached
➊
➋
➌
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➎
➏
➐
➑
➒
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