Dry Operation - Fujitsu ASU9RL Service Instruction

3. DRY OPERATION

3-1 INDOOR UNIT CONTROL
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 body has
detected as shown in the Table 3.
However, after the compressor is driven, the indoor unit shall run at operation frequency of
64Hz (for ASU9RL) or 61Hz (for ASU12RL), for a minute.
( Table 3 : Compressor frequency )
9RL X zone
J zone
Y zone
( Fig.3 : Compressor Control based on Room Temperature )
Room
temperature
X zone
Ts+1°F
(+0.5°C)
J zone
Ts -3°F
(-1.5°C)
Y zone
( Fig.4 : Indoor Fan Control )
Compressor
ON
OFF
Indoor fan
Setting air flow
Indoor fan
(as shown in Table 4)
S-Lo
OFF
10
( Table 4 : Indoor fan speed )
ASU9RL
ASU12RL
Operating
frequency
37Hz
12RL X zone
28Hz J zone
0Hz
Y zone
Room
temperature
Ts+3°F
(+1.5°C)
Ts -1°F
(-0.5°C)
30 60
X zone J, Y zone
680rpm 650rpm
680rpm 650rpm
05-03
Operating
frequency
33Hz
25Hz
0Hz
180 60 180 60 10 30
(SEC)