Compressor Control - Fujitsu AG G12LVCA 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)
AO*G09LVCA
AO*G12LVCA
AO*G14LVLA
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)
AO*G09LVCA
AO*G12LVCA
AO*G14LVLA
(Time)
AO*G09LVCA
AO*G12LVCA
AO*G14LVLA
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 ]
AO*G09LVCA
AO*G12LVCA
AO*G14LVLA
[ Heating ]
AO*G09LVCA
AO*G12LVCA
AO*G14LVLA
Cooling / Dry
Minimum Maximum
18rps 96rps
18rps 90rps
Time Time
Frequency
Frequency
56rps 74rps
40rps 59rps
Time Time
80sec 140sec
60sec 100sec
10°C 14°C
Under Over Under
27rps 27rps
10°C 14°C
Under Over Under
21rps 21rps
- 20°C - 15°C
Under Over Under
36rps 36rps
38rps 38rps
Heating
Minimum Maximum
18rps 130rps
18rps 119rps
Time Time Time
Frequency Frequency Frequency
87rps 97rps
72rps 80rps
Time Time Time
200sec 380sec
140sec 200sec
40°C
Over Under Over
18rps 30rps
40°C
Over Under Over
18rps 18rps
- 3°C
Over Under Over Under
36rps 27rps
38rps 27rps
01-08
Time
6
Frequency
108rps 119rps
110rps
101rps
Time
6
440sec 500sec
350sec 410sec
7°C 14°C
Over Under Over
27rps
21rps
40°C
Under Over
18rps 30rps
18rps 18rps