AS24GS1/2ERA 1U24GS1ERA-SM Function and Control
Domestic Air Conditioner
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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 100 HZ
2 Wh_c<-8 Max_hz7 100HZ
3 Wh_c<-2 Max_h z4 100HZ
4 Wh_c<5 Max_hz5 90 HZ
5 Wh_c<10 Max_hz1 80 HZ
6 Wh_c<17 Max_hz2 70 HZ
7 Wh_c<20 Max_hz6 60HZ
8
Wh_c>˙20
Max_hz3 48HZ
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 45HZ
2 Wh_c<32 Max_hz2 70 HZ
3 Wh_c<40 Max_hz3 90 HZ
4 Wh_c<48 Max_hz4 70 HZ
5
Wh_c>˙48
Max_hz5 48 HZ
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=∑˄ΔTi*Pi˅/∑Pi (ΔTi=|Tst_i-Tnh_i the indoor environment temperature| ;Pi˙i the ability of the
indoor unit)
Refrigeration/dehumidification:
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