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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 11.
Cooling / Dry Heating
Minimum Maximum Minimum Maximum
AOU09RL2
AOU12RL2
18rps
80rps
18rps 120rps
96rps
AOU09RL2
AOU12RL2
AOU09RL2
AOU12RL2
56rps 67rps 75rps
(Table 11 : 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.9.
(Fig.9 : 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
80sec 140sec 200sec
(Time)
AOU09RL2
AOU12RL2
78rps 78rps
Frequency
Time
6
Frequency
Time
6
78rps
56rps 74rps 87rps 97rps 108rps 119rps
380sec 440sec440sec
60sec 100sec 140sec 200sec 410sec350sec
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table12.
Under Over Under Over Under Over
45rps 27rps
35rps 23rps
30rps-------
(Table12 : Limitation of Compressor Frequency)
AOU09RL2
AOU12RL2
10°C (50°F) 14°C (59°F) 40°C (104°F)
Under Over Under Over Under Over Under Over
34rps 22rps 27rps
36rps 27rps 27rps
30rps-------
- 3°C (26°F) 7°C (45°F) 14°C (59°F) 40°C (104°F)
[ Cooling/ Dry ]
[ Heating ]