Functions and control
Domestic air conditioner
7. Functions and Control
7.1 Main functions and control specification
7.1.1 The operation frequency of outdoor unit and its control
7.1.1.1 The operation frequency control of compressor
7.1.1.2 The starting of compressor
7.1.1.3 The speeds of increasing or decreasing the frequency of the compressor
7.1.1.4 The calculation of the compressor’s frequency
17
The operation frequency scope of compressor˖
Mode Minimun operation frequency Maximun operation frequency
zH811zH02gnitaeH
zH09zH02noitaregirfeR
When the compressor is started for the first time, it must be kept under the conditions of 58Hz,88Hz for
one minute (the overheating protection of the outdoor unit air-blowing temperature, immediately decrease the
frequency when the compressor is overflowing and releasing the pressure)ˈthen it can be operated towards
the target frequency. When the machine runs normally, there’s no such process. After starting the
compressor for operation, the compressor should run according to the calculated frequency, and every
determined frequency for protection should be prior to the calculated frequency.
The speed of increasing or decreasing the frequency rapidly 1 -----------1HZ/second
The speed of increasing or decreasing the frequency slowly 2 -----------1HZ/10seconds
1˅ǃThe minimum/maximum frequency limitation
AˊWhile refrigerating: ˢˉ˩˝˴ˉ is the maximum operation frequency of the compressor; ˢˉ˩
INˉ is the minimum operation frequency of the compressor.
BˊWhile heating: ˢˉ˩˝˴ˉ is the maximum operation frequency of the compressor; ˢˉ˩INˉ
is the minimum operation frequency of the compressor.
1˅ǃThe frequency limitation which is affected by the environment temperature.
Heating mode:
Serial No. Temperature scope Frequency limitation
1 Wh_c<-12 Max_hz8 117 HZ
ZH7117zh_xaM8-<c_hW2
ZH7114zh_xaM2-<c_hW3
ZH995zh_xaM5<c_hW4
ZH091zh_xaM01<c_hW5
ZH722zh_xaM71<c_hW6
ZH262zh_xaM02<c_hW7
8
Wh_c
20
Max_hz6 45 HZ
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
ZH831zh_xaM61<c_hW1
ZH441zh_xaM22<c_hW1
ZH551zh_xaM82<c_hW1
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