Compressor Control - Fujitsu AB*30LBAG series Service Instruction

5-8. COMPRESSOR CONTROL

1. OPERATION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in Table 7.
(Table 7 : Compressor Operation Frequency Range)
AB*30LBAG
AB*36LBAG
AB*45LBAG
2. OPERATION FREQUENCY CONTROL AT START UP
The compressor frequency soon after the start-up is controlled as shown in Figure 10.
(Fig.10 : Compressor Control at Start-up)
Frequency
Frequency
(Frequency)
AB*30LBAG
AB*36LBAG
AB*45LBAG
(Time)
AB*30LBAG
AB*36LBAG
AB*45LBAG
Cooling
Min Max
20Hz 90Hz
20Hz 90Hz
20Hz 92Hz
1
Hold
Time A Time B
Frequency Frequency
40Hz
56Hz
Time A Time B
180sec 60sec
180sec 80sec
Heating
Min Max
20Hz 95Hz
20Hz 95Hz
20Hz 92Hz
2
Time C
Time E
For AB*30/ 36LBAG
1 Discharge pipe temp. >
2 Discharge pipe temp. < 30°C
For AB*45LBAG
1 Discharge pipe temp. >
2 Discharge pipe temp. < 35°C
56Hz
70Hz
Time C Time D
120sec 120sec
180sec 180sec
05-10
Dry
45Hz
45Hz
30Hz
Time D
30°C
=
35°C
=
Time E
720sec
720sec