Compressor Control - Fujitsu ASU9RL Service Instruction

8. COMPRESSOR CONTROL

1. OPEARTION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the table 10.
(Table 10 : Compressor Operation Frequency Range)
ASU9RL
ASU12RL
2. OPEARTION FREQUENCY CONTROL AT START UP
The compressor frequency soon after the start-up is controlled as shown in the figure 10.
(Fig.10 : Compressor Control at Start-up)
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Time
(Frequency)
ASU9RL
ASU12RL
(Time)
ASU9RL
ASU12RL
Cooling
Min Max
22Hz 79Hz
18Hz 96Hz
Time Time
Frequency Frequency
70Hz 82Hz
56Hz 74Hz
Time Time
80sec 60sec
60sec 40sec
05-09
Heating
Min Max
22Hz 99Hz 28Hz
18Hz 130Hz 25Hz
Time Time
Frequency Frequency
92Hz 96Hz
87Hz 97Hz
Time Time
60sec 180sec
40sec 60sec
Dry
Min Max
37Hz
33Hz
Time
Frequency Frequency
96Hz -
108Hz 119Hz
Time Time
60sec -
150sec 60sec