Cooling Operation - Fujitsu ASYG09LLCB Service Instruction

1. COOLING OPERATION

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 2°C higher than a set temperature, the compressor operation
frequency will attain to maximum performance.
* If the room temperature is some degrees lower than a set temperature,
the compressor will be stopped.
* When the room temperature is between +2°C to -2.5°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 Fig.1 based on the indoor
fan mode and the outdoor temperature.
( Table 1 : Compressor frequency range )
Minimum
Model
frequency
07/09 18rps
12 16rps
( Fig.1 : Outdoor temperature zone )
When the outdoor
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
64rps
87rps
( Table 2 : Limit of maximum speed based on outdoor temperature )
When the outdoor
temperature rises
36°C
32°C
21°C
12°C
2°C
01-01
Outdoor
Model
temp. zone
A zone
07, 09
B zone
C zone
D zone
E zone
F zone
A zone
12
B zone
C zone
D zone
E zone
F zone
Indoor fan mode
Hi Me Lo Quiet
64rps 51rps 42rps 30rps
64rps 51rps 42rps 30rps
64rps 51rps 42rps 30rps
48rps 45rps 39rps 30rps
48rps 45rps 39rps 30rps
48rps 45rps 39rps 30rps
87rps 55rps 46rps 30rps
87rps 55rps 46rps 30rps
87rps 55rps 46rps 30rps
62rps 52rps 44rps 30rps
62rps 52rps 44rps 30rps
62rps 52rps 44rps 30rps