Fujitsu ASU9RL - Compressor Control

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.
Cooling Heating
Min Max Min Max Min Max
Dry
ASU9RL
ASU12RL
22Hz 79Hz 22Hz 99Hz 28Hz 37Hz
18Hz 96Hz 18Hz 130Hz 25Hz 33Hz
ASU9RL
ASU12RL
70Hz 82Hz 92Hz 96Hz 96Hz -
56Hz 74Hz 87Hz 97Hz 108Hz 119Hz
80sec 60sec 60sec 180sec 60sec -
60sec 40sec 40sec 60sec 150sec 60sec
(Table 10 : Compressor Operation Frequency Range)
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)
Time
Time Time Time
Time
Time
(Frequency)
(Time)
Frequency
Frequency
Frequency Frequency
Frequency
Frequency
Time Time
Time Time Time Time
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
05-09
ASU9RL
ASU12RL