8. COMPRESSOR CONTROL
01-08
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
Minimum Maximum Minimum Maximum
AOU9/ 12RLFF 10rps
16rps
119rps
76rps
AOU15RLFF
91rps
16rps
12rps
140rps
Dry
Minimum Maximum
18rps
26rps
16rps
24rps
AOU9/ 12RLFF
AOU15RLFF
AOU9/ 12RLFF
AOU9/ 12RLFF
AOU9/ 12 / 15RLFF
(Table 10 : Compressor frequency range)
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)
Time
Time Time Time
Time
(Frequency)
Frequency
Frequency
Frequency Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Time
Time Time Time
Time
(Time)
Frequency
Time
6
Frequency
Time
6
40rps 57rps 72rps 80rps
101rps
110rps
40rps 59rps 72rps 80rps
101rps
110rps
80sec 110sec 140sec 200sec 410sec350sec
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table11.
Under Over Under Over Under Over
35rps 18rps 10rps10rps
(Table11 : Limitation of Compressor Frequency)
Under Over Under Over Under Over Under Over Under Over Under Over
35rps 35rps 35rps 18rps 16rps 16rps29rps
-4°F (-20°C) 5°F (-15°C)
[ Cooling/ Dry ]
[ Heating ]
50°F (10°C) 59°F (14°C) 104°F (40°C)
AOU15RLFF
Under Over Under Over Under Over
24rps 18rps 16rps12rps
32°F (0°C) 50°F (10°C) 104°F (40°C)
23°F (-5°C) 37°F (3°C) 45°F (7°C) 104°F (40°C)
AOU15RLFF
Under Over Under Over Under Over Under Over Under Over Under Over
24rps 24rps 24rps 18rps 16rps 16rps24rps
-4°F (-20°C) 5°F (-15°C)
23°F (-5°C) 37°F (3°C) 45°F (7°C) 104°F (40°C)