Functions and control
18
Domestic air conditioner
affected by the environment, and they have nothing to do with the ability of the indoor unit.
Refrigeration/dehumidification mode:
Serial No. Temperature scope Frequency limitation
1 Wh_c<16 Max_hz1 23HZ
1 Wh_c<22 Max_hz1 27HZ
1 Wh_c<28 Max_hz1 35HZ
2 Wh_c<32 Max_hz2 51HZ
3 Wh_c<40 Max_hz3 69HZ
4 Wh_c<48 Max_hz4 55HZ
5 Wh_c>=48 Max_hz5 40HZ
Remarks: the above are not only the maximum frequency limitations of the complete appliance
which are affected by the environment, but also the maximum ability limitation of the system. When the
starting ability is not the maximum, its maximum frequency limitation is calculated by the following
equations:
The frequency limitation which is affected by the temperature and under the condition of actual
ability˙the actual running system ability*the maximum frequency which is limited by the temperature
and under the condition of maximum ability/the maximum designing ability of the system
T=ě˄Ti*Pi˅/ěPi (Ti=|Tst_i the setting temperature - Tnh_i the indoor environment
temperature|; Pi˙i the ability of the indoor unit)
Refrigeration/dehumidification:
Heating mode˖
K=ě(Ki*Pi)/ěPi
The calculation of the actual output frequency:
when there is no healthy airflow: F= F-ED-*(rated frequency)hPhK
When the healthy airflow has been set: F =F-ED-*hPhK˄airflow speed˅hK˄healthy airflow˅
Notes:
When refrigerating, it is needed to satisfy
F-MIN-d(compressor’s Min_hz)< F<F-MAX-d(compressor’s Max_hz)
T
<1
˙1 ˙2 ˙3
>=4
The percentage of the
rated frequency P
60% 70% 80% 90% 100%
T
<1
˙1 ˙2 ˙3
>=4
The percentage of the
rated frequency P
60% 70% 80% 90% 100%
The indoor setting
airflow speed
Low Medium High Strong Quiet
Healthy
airflow
The percentage of the
rated frequency Ki
80% 90% 100% 115% 70% 60%
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