7. COMPRESSOR CONTROL
1. OPERATION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the Table 9.
Cooling Heating
Min Max Min Max
AOU18RLXFZ
AOU24RLXFZ
20rps 100rps 24rps 110rps
AOU36RLXFZ 20rps 90rps 20rps 95rps
(Table 9 : Compressor Operation Frequency Range)
2. OPERATION FREQUENCY CONTROL AT START UP
The compressor frequency soon after the start-up is controlled as shown in the figure 13-1.
1) Compressor operates for 180 seconds by 40 rotations.
2) In the case of lower than 40 rotations, it operates at these rotations.
3) Compressor operates for 60 to 780 seconds.
4) Compressor operates at target rotations after 120 second operation.
When discharge temperature exceeds 30 degrees in the meantime, it shifts to 56 rotations.
(Fig.13-1 : Compressor Control at Start-up)
01-20
40rps
120sec
120sec
60 - 780sec
180 - 900sec 300 - 1020sec
56rps
85rps
For AOU18RLXFZ / AOU24RLXFZ
For AOU36RLXFZ
The compressor frequency soon after the start-up is controlled as shown in Figure 13-2.
(Fig.13-2 : Compressor Control at Start-up)
40rps
180sec
120sec
60 - 720sec
240 - 900sec 360 - 1020sec
40rps
56rps
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