Dry Operation; Rotation Number Of Compressor At Normal Start-Up - Fujitsu ASUG12LZBS Service Manual

1-3. Dry operation

The rotation number of compressor 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.
• Rotation number range of compressor
Model name
ASUG09LZBS
ASUG12LZBS
ASUG15LZBS
• Compressor control based on room temperature

1-4. Rotation number of compressor at normal start-up

¢ Models: AOUG09LZAS1, AOUG12LZAS1, and AOUG15LZAS1
Rotation number of compressor soon after starting is controlled as below.
Rotation number VI
Rotation number V
Rotation number IV
Rotation number III
Rotation number II
Rotation number I
Rotation
number (rps)
Time (sec)
1-3. Dry operation
Outdoor temperature zone
Room temperature drops
X zone
Ts+1°F
(Ts+0.5°C)
J zone
Ts-3°F
(Ts-1.5°C)
Y zone
Time 1
I II
35 52
1 2
60 140
X zone
J zone
Y zone
X zone
J zone
Y zone
Room temperature rises
Ts: Set temperature
Time 2 Time 3 Time 4
III IV
64 71
3 4
170 200
- (04-4) -
Unit: rps
Operating rotation number
24
18
0
22
16
0
Ts+3°F
(Ts+1.5°C)
Ts-1°F
(Ts-0.5°C)
Time 5 Time 6
V
89
5
350
1. Rotation number control of compressor
VI
97
6
410