Functions and control
operation frequency of the compressor.
Heating mode
:
Serial no. Temperature scope Frequency limitation
c_hW 1 ˘ zH011 8zh_xaM 21-
c_hW 2 ˘ zH011 7zh_xaM 8-
c_hW 3 ˘ zH011 4zh_xaM 2-
c_hW 4 ˘ zH011 5zh_xaM 5
c_hW 5 ˘ zH09 1zh_xaM 01
c_hW 6 ˘ zH08 2zh_xaM 71
c_hW 7 ˘ zH07 2zh_xaM 02
c_hW 8≥ zH56 6zh_xaM 02
Remarks: the above are the maximum frequency limitations of the complete appliance which are 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
c_hW 1 ˘28 Max_hz1 45Hz
c_hW 2 ˘32 Max_hz2 80Hz
c_hW 3 ˘46 Max_hz3 90Hz
c_hW 4 ˘50 Max_hz4 80Hz
c_hW 5 ≥50 Max_hz5 60Hz
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
actural 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
ΔT=Σ˄ΔTi*Pi˅/ΣPi (ΔTi=|Tst_i-Tnh_i the indoor environment temperature| ;Pi˙i the ability of the indoor unit)
Refrigeration/dehumidification:
ΔT ˘1 ˙1 ˙2 ˙3 ≥4
The percentage of the rated
frequency P
50% 70% 100% 120% 160%
Heating mode˖
ΔT ˘1 ˙1 ˙2 ˙3 ≥4
The percentage of the rated
frequency P
150% 170% 200% 220% 240%
K=ΣKi/the number of running machines
The indoor set airflow
speed
Breeze Low Medium High Strong Quiet
Healthy
airflow
The percentage of the
rated frequency Ki
70% 80% 90% 100% 180% 65% 65%
Domestic air conditioner
24
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