Fujitsu ASU9RL - Accessories; Installation Accessories; Operation Accessories; Maintenance Accessories

The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected
temperature by the indoor heat exchanger sensor on heating mode.
(Fig.8 : Cool Air Prevention Control)
05-06
5. HEATING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 7.
On the other hand, if switched in [HIGH] [QUIET], the indoor motor will run at a constant airflow
of [HEAT] operation modes QUIET, LOW, MED, HIGH, as shown in Table 6.
6. COOL AIR PREVENTION CONTROL (Heating mode)
4. DRY OPERATION
Refer to the Table 6.
During the dry mode operation, the fan speed setting can not be changed.
( Fig.7 : Airflow change - over ( Heating : AUTO ) )
TR-Ts > -3
°F(-1.5°C)
=
-5
°F(-2.5°C) > TR-Ts
-3
°F(-1.5°C) > TR-Ts > -5°F(-2.5°C)
=
TR-Ts > -2
°F(-1°C)
=
-4
°F(-2°C) > TR-Ts
-2
°F(-1°C) > TR-Ts > -4°F(-2°C)
=
When the room
temperature rises
When the room
temperature drops
TR : Room temperature
Ts : Setting temperature
LOW mode
MED mode
MED+ mode
117°F
(47°
C)
86°F
(30°C)
93
°F
(34°C)
Indoor heat exchanger
temperature
Indoor heat exchanger
temperature
< [Hi] setting >
Hi
Me+
Lo
Cool air
prevention
104°F
(40°
C)
99°F
(37°
C)
104°F
(40°
C)
90
°F
(
32°C)
82
°F
(28°C)
104°F
(40°
C)
90
°F
(
32°C)
Indoor heat exchanger
temperature
Indoor heat exchanger
temperature
< The other of [Hi] setting >
S-Lo
Lo (Qu)
Cool air
prevention
99°F
(37°
C)
86°F
(30°
C)
93°F
(34°
C)
82
°F
(
28°C)
Setting
FAN mode
S-Lo