Compressor Control - Fujitsu AS G07LLCC Series Service Manual

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 11.
(Table 11 : Compressor frequency range)
Model
07/09
12
2. OPEARTION FREQUENCY CONTROL AT NORMAL START UP
The compressor frequency soon after the start-up is controlled as shown in the Fig.9.
(Fig.9 : Compressor control at start-up)
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
(Frequency)
Model
07/09
12
(Time)
Model
07/09
12
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table12.
(Table12 : Limitation of Compressor Frequency)
[ Cooling/ Dry ]
Model
07/09
12
[ Heating ]
Model
07/09
12
Cooling / Dry
Minimum Maximum
18rps 64rps
16rps 87rps
Time Time Time
Frequency Frequency
56rps 67rps
51rps 67rps
Time Time
80sec 140sec
60sec 100sec
10°C 14°C
Under Over Under
35rps 23rps
44rps 28rps
- 3°C 7°C
Under Over Under
34rps 22rps
44rps 28rps
Heating
Minimum Maximum
18rps 120rps
16rps 109rps
Time
Time
Frequency Frequency Frequency
75rps 78rps 78rps
79rps 88rps 98rps
Time Time Time
200sec 380sec 440sec
140sec 200sec 350sec
40°C
Over Under Over
30rps
-------
30rps
14°C
Over Under Over
-------
01-08
Time 6
Frequency
78rps
108rps
Time
6
440sec
410sec
40°C
Under Over
30rps
30rps