Fujitsu AOYG07KMTA, Service Manual

Page: 48 / 105

8. COMPRESSOR CONTROL
01-09
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
84rps
90rps
90rps
89rps
14rps 14rps
12rps
110rps
12rps
45rps 56rps
68rps
(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.10
(Fig.10 : 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
60sec 140sec 170sec 220sec 280sec 360sec 430sec
(Time)
77rps
84rps
Frequency
Frequency
Time
6
Time
7
Time 7
Frequency Frequency
Time
6
93rps 103rps
3. LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE
The minimum compressor frequency is limited by outdoor temperature as shown in the Table12.
Over Under Over Under Over Under Over Under
Over Under Over Under Over Under Over Under
AO*G07/ 09KMTA
AO*G12KMTA
AO*G14KMTA
21rps 16rps 33rps 42rps
36rps 28rps 36rps 1rps
28rps
26rps
49rps 33rps 21rps 16rps 24rps
(Table12 : Limitation of Compressor Frequency)
38°C 19°C 10°C 0°C
[ Cooling/ Dry ]
AO*G07/ 09/ 12KMTA
AO*G14KMTA
16rps 16rps 30rps 43rps
37rps
36rps 1rps 1rps
18rps
15rps
19°C 5°C 0°C -15°C
[ Heating ]
AO*G07KMTA
AO*G09KMTA
AO*G12KMTA
AO*G14KMTA