Fujitsu AG G12LVCB Series Service Instruction page 8

4. DRY OPERATION
Refer to the Table 5.
During the dry mode operation, the fan speed setting can not be changed.
5. HEATING OPERATION
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature,
as shown in Fig. 5
On the other hand, if switched in [Hi]
of [Heat] operation modes Quiet, Lo, Me, High, as shown in Table 6.
( Fig.5 : Airflow change - over ( Heating : Auto ) )
When the room
temperature rises
TR-Ts > -1°C
=
-1°C > TR-Ts > -2°C
=
-2°C > TR-Ts
6. COOL AIR PREVENTION CONTROL (Heating mode)
The maximum value of the indoor fan speed is set as shown in Fig.6 based on the detected
temperature by the indoor heat-exchanger sensor on heating mode.
( Fig.6 : Cool air prevension control )
Indoor heat exchanger
temperature rises
42°C
39°C
37°C
30°C
7. MOISTURE RETURN PREVENTION CONTROL (Cooling mode& Dry mode)
Switch the airflow [Auto] at cooling mode, and the indoor fan motor will run as shown in Fig.7.
( Fig.7 : Indoor fan control )
Compressor
ON
OFF
Indoor fan
Setting air flow
Indoor fan
(as shown in Table 6)
S-Lo
OFF
( Table 6 : Indoor fan speed )
AG*G09/12/ 14LVCB
[Quiet], the indoor motor will run at a constant airflow
Lo mode
Me mode
Hi mode
Indoor heat exchanger
temperature drops
Hi
Me
Lo
Cool air
prevention
S-Lo
10 30 60
Dry
X zone J zone
680rpm 680rpm
When the room
temperature drops
TR-Ts > -1.5°C
=
-1.5°C > TR-Ts > -2.5°C
-2.5°C > TR-Ts
34°C
31°C
29°C
24°C
180 60
Cooling
Y zone
0 680rpm 680rpm
01-05
=
TR : Room temperature
Ts : Setting temperature
180 60 10 30
(sec)