Domestic Air Conditioner
21
5.2 The control system of outdoor unit
5.2.1˖The operation frequency of outdoor unit and its control
5.2.1.1˖The operation frequency control of compressor
The operation frequency scope of compressor˖
Mode Minimun operation frequency Maximun operation frequency
Heating 20Hz 110Hz
Refrigeration 20 Hz 90Hz
5.2.1.2˖The starting of compressor
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.
5.2.1.3˖The speeds of increasing or decreasing the frequency of the compressor
The speed of increasing or decreasing the frequency rapidly 1 -----------1HZ/second
The speed of increasing or decreasing the frequency slowly 2 -----------1HZ/10seconds
5.2.1.4˖The calculation of the compressor’s frequency
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
˩INˉis 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 110 HZ
2 Wh_c<-8 Max_hz7 110HZ
3 Wh_c<-2 Max_hz4 110 HZ
4 Wh_c<5 Max_hz5 100HZ
5 Wh_c<10 Max_hz1 90HZ
6 Wh_c<17 Max_hz2 80 HZ
7 Wh_c<20 Max_hz2 70 HZ
8
Wh_c
20
Max_hz6 65 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
1 Wh_c<28 Max_hz1 45 HZ
2 Wh_c<32 Max_hz2 80 HZ
3 Wh_c<46 Max_hz3 90 HZ
Funcitions and Control
To Next Page
Loading...
