Compressor Control - Fujitsu AG G12LVCB 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 9.
(Table 9 : Compressor frequency range)
AG*G09LVCB
AG*G12LVCB
AG*G14LVCB
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)
AG*G09LVCB
AG*G12LVCB
AG*G14LVCB
(Time)
AG*G09LVCB
AG*G12LVCB
AG*G14LVCB
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table10.
(Table10 : Limitation of Compressor Frequency)
[ Cooling/ Dry ]
AG*G09LVCB
AG*G12LVCB
AG*G14LVCB
[ Heating ]
AG*G09LVCB
AG*G12LVCB
AG*G14LVCB
Cooling / Dry
Minimum Maximum
15rps 80rps
12rps 81rps
Time Time
Frequency
Frequency
40rps 57rps
40rps 59rps
Time Time
80sec 110sec
10°C 14°C
Under Over Under
35rps 18rps
0°C 10°C
Under Over Under
24rps 18rps
- 20°C - 15°C
Under Over Under
35rps 35rps
24rps 24rps
Heating
Minimum Maximum
16rps 119rps
16rps 140rps
Time Time Time
Frequency Frequency Frequency
72rps 80rps
72rps 80rps
Time Time Time
140sec 200sec
40°C
Over Under Over
15rps 15rps
40°C
Over Under Over
12rps 16rps
- 5°C
Over Under Over Under
35rps 29rps
24rps 24rps
01-08
Time
6
Frequency
101rps 110rps
110rps
101rps
Time
6
350sec 410sec
3°C 7°C
Over Under Over
18rps
18rps
40°C
Under Over
16rps 16rps
16rps 16rps