Compressor Control - Fujitsu AS G09LLCA Series 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 11.
(Table 11 : Compressor frequency range)
AO*G09LLCA
AO*G12LLCA
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)
AO*G09LLCA
AO*G12LLCA
(Time)
AO*G09LLCA
AO*G12LLCA
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 ]
AO*G09LLCA
AO*G12LLCA
[ Heating ]
AO*G09LLCA
AO*G12LLCA
Cooling / Dry
Minimum Maximum
64rps
18rps
96rps
Time Time
Frequency
Frequency
56rps 74rps
Time Time
60sec 100sec
10°C 14°C
Under Over Under
25rps 25rps
- 3°C 7°C
Under Over Under
25rps 25rps
Heating
Minimum Maximum
18rps 120rps
Time Time Time
Frequency Frequency Frequency
87rps
97rps
Time Time
140sec 200sec
40°C
Over Under Over
------- 30rps
14°C
Over Under Over
22rps -------
01-08
Time
6
Frequency
108rps 119rps
Time Time
6
350sec 410sec
40°C
Under Over
30rps