Fujitsu ASU9RL - Outdoor Unit Parts - Casing and Inverter; Outdoor Unit Casing and Control Electronics; Outdoor Unit Inverter System Components; Outdoor Unit Terminal Connections

5. INDOOR FAN CONTROL
The airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH,
while the indoor fan only runs.
When Fan mode is set at (Auto), it operates on (MED) Fan Speed.
05-05
1. Fan speed
2. FAN OPERATION
( Table 6 : Indoor Fan Speed )
ASU9 / 12RL
Operation mode Air flow mode Speed (rpm)
1440
1370
1200
980
Cooling
Hi
Hi
700
600
480
1440
Me+
Me
Me
Heating
Lo
Lo
1200
920
Quiet
Quiet
680
Dry
S-Lo
X zone: 680
J zone: 650
Cool air prevention
3. COOLING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 6.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow of [COOL]
operation modes QUIET, LOW, MED, HIGH,as shown in Table 6.
( Fig.6 : Airflow change - over ( Cooling : AUTO ) )
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
TR-Ts > 4°F(2°C)
=
2
°F(1°C) > TR-Ts
4
°F(2°C) > TR-Ts > 2°F(1°C)
=
TR-Ts > 5
°F(2.5°C)
=
3
°F(1.5°C) > TR-Ts
5
°F(2.5°C) > TR-Ts > 3°F(1.5°C)
=
HIGH mode
MED mode
LOW mode