Compressor Control - Fujitsu AGU12RLF 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 frequency range)
AOU9/ 12RLFF
AOU15RLFF
2. OPEARTION FREQUENCY CONTROL AT NORMAL START UP
The compressor frequency soon after the start-up is controlled as shown in the Fig.10
(Fig.10 : Compressor control at start-up)
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
(Frequency)
AOU9/ 12RLFF
AOU15RLFF
(Time)
AOU9/ 12 / 15RLFF
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table11.
(Table11 : Limitation of Compressor Frequency)
[ Cooling/ Dry ]
AOU9/ 12RLFF
AOU15RLFF
[ Heating ]
AOU9/ 12RLFF
AOU15RLFF
Cooling
Minimum Maximum
10rps 76rps
12rps 91rps
Time Time
Frequency
Frequency
40rps 57rps
40rps 59rps
Time Time
80sec 110sec
50°F (10°C) 59°F (14°C)
Under Over Under
35rps 18rps
32°F (0°C) 50°F (10°C)
Under Over Under
24rps 18rps
-4°F (-20°C) 5°F (-15°C)
Under Over Under
35rps 35rps
-4°F (-20°C) 5°F (-15°C)
Under Over Under
24rps 24rps
Heating
Minimum Maximum
16rps 119rps
16rps 140rps
Time Time
Time
Frequency Frequency Frequency
72rps 80rps
72rps 80rps
Time Time Time
140sec 200sec 350sec
104°F (40°C)
Over Under Over
10rps 10rps
104°F (40°C)
Over Under Over
12rps 16rps
23°F (-5°C)
Over Under Over Under
35rps 29rps
23°F (-5°C)
Over Under Over Under
24rps 24rps
01-08
Dry
Minimum Maximum
18rps 26rps
16rps 24rps
Time
6
Frequency
101rps 110rps
101rps 110rps
Time
6
410sec
37°F (3°C) 45°F (7°C)
Over Under Over
18rps
37°F (3°C) 45°F (7°C)
Over Under Over
18rps
104°F (40°C)
Under Over
16rps 16rps
104°F (40°C)
Under Over
16rps 16rps