Fujitsu Halcyon AOU12RLQ, Service Instructions Manual

Page: 22 / 81

(3).COOLING OPERATION
Switch the airflow [AUTO], and the (Fig.6)
indoor fan motor will run according
airflow change - over ( Cooling:AUTO )
to a room temperature, as shown in
When the room
Figure 6.
temperature rises
On the other hand, if switched in
[HIGH] [QUIET], the indoor motor
+5°F(+2.5°C)
will run at a constant airflow of [COOL]
operation modes QUIET, LOW, MED,
HIGH, as shown in Table 5. +3°F(+1.5°C)
+2°F(+1°C)
LOW mode
When the room
temperature lowers
(Room temperature) D (Setting temperature)
(4).DRY OPERATION
(5).HEATING OPERATION
Switch the airflow [AUTO], and the (Fig.7)
indoor fan motor will run according
airflow change - over ( Heating:AUTO)
to a room temperature, as shown in
When the room
Figure 7.
temperature rises
On the other hand, if switched
LOW mode
[HIGH] [QUIET], the indoor motor -2°F(-1°C)
will run at a constant airflow of [HEAT]
-3°F(-1.5°C)
operation modes QUIET, LOW, MED,
HIGH, as shown in Table 5. -4°F(-2°C)
-5°F(-2.5°C)
MED + mode
When the room
temperature lowers
(Room temperature) D (Setting temperature)
(6).COOL AIR PREVENTION CONTROL (Heating mode)
Indoor heat exchanger Indoor heat exchanger
temperature temperature
117°F(47°C)
Hi
104°F(40°C)
Me+
99°F(37°C)
Lo
Cool air prevention
86°F(30°C)
S-Lo
Refer to the table 4.
Durring the dry mode operation, the fan speed
setting can not be changed.
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
104°F(40°C)
82°F(28°C)
90°F(32°C)
93°F(34°C)
HIGH mode
MED mode
+4°F(+2°C)
MED mode