Compressor Control - Fujitsu AB*14LBAJ Service Instruction

6. COMPRESSOR CONTROL

1. OPERATION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the table 4.
(Table 4 : Compressor Operation Frequency Range)
AO*18LMAK2
AO*24LMAM2
AO*30LMAW4
2. OPERATION FREQUENCY CONTROL AT START UP
2-1. For AO*18L/ 24L
The compressor frequency soon after the start-up is controlled as shown in Figure 10-1.
(Fig.10-1 : Compressor Control at Start-up)
80Hz
56Hz
2-2. For AO*30LMAW4
The compressor frequency soon after the start-up is controlled as shown in Figure 10-2.
(Fig.10-2 : Compressor Control at Start-up)
56Hz
40Hz
180sec
Cooling
Min Max
15Hz 80Hz
15Hz 80Hz
15Hz 90Hz
Hold
46sec 60sec
1
Hold
2
60sec
Heating
Min Max
15Hz 95Hz
15Hz 95Hz
20Hz 95Hz
80sec
120sec
720sec
01-21
160sec
120sec
1 Discharge pipe temp. > 30°C
2 Discharge pipe temp. < 30°C
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