Fujitsu ASU18RLF Service Instructions Manual page 11

2. FAN OPERATION
The airflow can be switched in 5 steps such as Auto, Quiet, Lo, Me, Hi,
while the indoor fan only runs.
When Fan mode is set at (Auto), it operates on (Me) Fan Speed.< All models >
3. COOLING OPERATION (Auto : Cooling)
Switch the airflow [Auto], and the indoor fan will run according to a room temperature,
as shown in Fig. 2 .
On the other hand, if switched in [Hi]∼[Quiet], the indoor fan will run at a constant airflow of [Cooling]
operation modes Quiet, Lo, Me, Hi.
( Fig. 2 : Airflow change - over )
When the room
temperature drops
°F
TR-Ts > +4
=
(+
2°C)
°F °F
+4 > TR-Ts > +2
= =
(+
2°C) (+
1°C)
°F
+2 > TR-Ts
=
(+
1°C)
4. DRY OPERATION (Auto : Dry)
During the dry operation, the fan speed setting can not be changed, it operates automatically as shown in Fig. 3 .
Room temperature variation which the room temperature sensor of the indoor unit body has detected.
( Fig. 3 : Indoor fan control )
< Compressor >
ON
OFF
< Indoor fan air flow mode >
Setting air flow
S-Lo
Fan OFF
< All models >
Hi
Me
Lo
< All models >
10 30 60
01-08
When the room
temperature rises
°F
TR-Ts > +5
=
(+
2.5°C)
°F
+5 > TR-Ts > +3
=
(+
2.5°C)
°F
+3 > TR-Ts
=
(+
1.5°C)
180 60 180 60 10
°F
=
(+
1.5°C)
TR : Room temperature
Ts : Setting temperature
30 (sec)