Cooling Operation - Fujitsu AS*G09KXCA Series Service Instruction

1. COOLING OPERATION

1-1 COOLING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit body will usually perceive
difference or variation between a set temperature and present room temperature, and
controls the operation frequency of the compressor.
* If the room temperature is 6.0°C higher than a set temperature, the compressor operation
frequency will attain to maximum performance.
* If the room temperature is 1.0°C lower than a set temperature,
the compressor will be stopped.
* When the room temperature is between +6.0°C to -1.0°C of the setting temperature,
the compressor frequency is controlled within the range shown in Table1.
However, the maximum frequency is limited in the range shown in Figure1 based on the
fan speed mode and the outdoor temperature.
( Table 1 : Compressor Frequency Range )
minimum
frequency
15rps
( Fig.1 : Limit of Maximum Frequency based on Outdoor Temperature )
Outside air
temperature drops
A zone
34°C
B zone
30°C
C zone
19°C
D zone
10°C
E zone
0°C
F zone
maximum
frequency
63rps
Outside air
temperature rises
36°C
32°C
21°C
12°C
2°C
Hi Me
A zone 63rps 32rps
B zone 63rps 32rps
C zone 52rps 32rps
D zone 39rps 26rps
E zone 39rps 26rps
F zone 39rps 26rps
01-01
Lo Quiet
26rps 17rps
26rps 17rps
26rps 17rps
22rps 17rps
17rps 15rps
17rps 15rps