Compressor Control - Fujitsu ARCG040LSTA Service Instruction

7. COMPRESSOR CONTROL

1. OPEARTION FREQUENCY RANGE
The operation frequency of the compressor is different based on the operation mode as
shown in the Table 10.
(Table 10 : Compressor frequency range)
AOCG040LBTA
2. OPEARTION FREQUENCY CONTROL AT NORMAL START UP
The compressor frequency soon after the start-up is controlled as shown in the Fig.11
(Fig.11 : Compressor control at start-up)
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
(Frequency)
AOCG040LBTA
(Time)
AOCG040LBTA
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table11.
(Table11 : Limitation of Compressor Frequency)
[ Cooling/ Dry ]
AOCG040LBTA
[ Heating ]
AOCG040LBTA
Cooling / Dry
Minimum Maximum
12rps
Time Time
Frequency Frequency
40rps 59rps
Time
Time
80sec 110sec
0°C 10°C
Under Over Under
24rps 18rps
- 5°C 3°C
Under Over Under
24rps 24rps
Heating
Minimum Maximum
99rps 16rps 140rps
Time Time Time
Frequency Frequency
72rps 80rps
Time Time
140sec 200sec
40°C
Over Under Over
12rps 16rps
7°C
Over Under Over
18rps 16rps
01-09
Time
6
Frequency Frequency
101rps 110rps
Time Time
6
350sec 410sec
40°C
Under Over
16rps