Cooling Operation - Fujitsu AO G18LBCA Series Service Instruction

1-1. COOLING OPERATION

1-1-1 COOLING CAPACITY CONTROL
A sensor (room temperature thermistor) built in the indoor unit 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 Fig.1 based on the
fan speed mode and the outdoor temperature.
( Table 1 : Compressor Frequency Range )
minimum
frequency
10rps
( Fig. 1 : Limit of Maximum Frequency based on Outdoor Temperature )
Outdoor air
temperature
34°C
30°C
19°C
10°C
0°C
When the room
temperature drops
maximum
frequency
120rps
When the room
temperature rises
A zone
36°C
B zone
32°C
C zone
21°C
D zone
12°C
E zone
2°C
F zone
Fan speed mode
A zone
B zone
Model 18
C zone
D-F zone
A zone
B zone
Model 24
C zone
D-F zone
01-01
Hi Me Lo
97rps 53rps 46rps
97rps 53rps 46rps
72rps 49rps 40rps
53rps 37rps 34rps
107rps 62rps 51rps
62rps 51rps
107ps
80rps 56rps 47rps
62rps 47rps 40rps
Qu
34rps
34rps
34rps
22rps
40rps
40rps
40rps
25rps