Dry Operation; Compressor Frequency At Normal Start-Up - Fujitsu AO G24KATA Series Service Instruction

1-3. Dry operation

The compressor rotation frequency shall change according to the temperature, set temperature, and
room temperature variation which the room temperature sensor of the indoor unit has detected as
shown in the table below.
Zone is defined by set temperature and room temperature.
• Compressor frequency range
Model name
ARXG24KMLA
• Compressor control based on room temperature

1-4. Compressor frequency at normal start-up

¢ Model: AOYG24KATA
Compressor frequency soon after starting is controlled as below.
Frequency VI
Frequency V
Frequency IV
Frequency III
Frequency II
Frequency I
Frequency
(rps)
Time (sec)
1-3. Dry operation
Outdoor temperature zone
Room temperature drops
X zone
Ts+0.5°C
J zone
Ts -1.5°C
Y zone
Time 1 Time 2
I II
35 52
1 2
60 140
X zone
J zone
Y zone
Room temperature rises
Ts: Set temperature
Time 3 Time 4
III IV
64 71
3 4
170 200
- (04-3) -
Unit: rps
Operating frequency
41
41
0
Ts+1.5°C
Ts-0.5°C
Time 5 Time 6
V
89
5
350 410
1. Compressor frequency control
VI
97
6