1.1.3.2 Compressor control under dehumidification running.
1.1.3.2.1 When running in normal status, control of compressor frequency:
Temperature difference (ｏ
C)
ΔT> 4.3
4.3 ≥ΔT≥
1.3
1.3 ≥ΔT≥-1 ΔT < -1
Maximum frequency (Hz) High frequency Mid. frequency Low frequency
Compressor
stop
1.1.3.2.2 When running in dehumidify mode, the setting air volume restricts frequency as follows:
Setting airflow Maximum frequency (Hz)
Middle 90 Hz
Low 52 Hz
1.1.3.2.3 When running in dehumidify mode, the outdoor ambient temperature restricts frequency as follows:
(only applying to the machine models with outdoor ambient temperature sensor).
Outdoor ambient temp. (ｏC)
Maximum frequency (Hz)
ΔT≥26
No limitation
ΔT < 26
60 Hz
1.1.4 Heating running (heat compensation temp. 4.67ｏC)
1.1.4.1 Air volume control under heating running.
When heating running starts, defrosting stops. When compressor restarts, it shall be warm start to prevent cold
wind.
Thermal conversion temperature:
42ｏC (undetermined)
35.1ｏC (undetermined)
27.2ｏC (undetermined)
18.3 ｏC (undetermined)
* Select higher wind speed after 4 minutes
stop Lower Low setting Low Lower stop
Note:
For different machine type, the “undetermined” parameters is also different, here only take this example for illustration.
“ * ” Indicating that if unit maintains in this wind speed for more than 4 minutes, it then select higher speed.
When setting automatic wind speed, its velocity is related to the temperature difference (including compensation
temperature), see the following table for details:
Temperature difference (ｏC) ΔT> 4.7 4.7 ≥ΔT≥0.7 ΔT < 0.7
Wind speed High Middle Low
1.1.4.2 Compressor control under heating running
Model:
HSU-09H03/(BP)1
HSU-12H03/(BP)1Domestic Air Conditioner
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