Indoor Fan Control - Fujitsu ASU30RLE Service Instruction

1-5. INDOOR FAN CONTROL

1. Fan speed
( Table 5 : Indoor fan speed )
Operation mode Air flow mode Speed (rpm)
Powerful
Heating
Cool air prevention
Cooling / Powerful
Dry
2. FAN OPERATION
The airflow can be switched in 5 steps such as Auto, Quiet, Low, Med, High, while the indoor fan only runs.
3. COOLING OPERATION
Switch the airflow [Auto], and the indoor fan motor will run according to a room temperature, as shown in Fig.7.
On the other hand, if switched in [High]
operation modes Quiet, Low, Med, High, as shown in Table 5.
( Fig.5 : Airflow change - over ( Cooling : Auto ) )
Tr-Ts > 4°F
4°F > Tr-Ts > 2°F
(2°C)
2°F
(1°C)
4. DRY OPERATION
The airflow can be switched in 5 steps such as Auto, Quiet, Low, Med, High, while the indoor fan only runs.
1520
Hi 1370
Me+
1260
Me
1150
Lo
950
Quiet
780
600
S-Lo 540
1520
1370
Hi
Me 1150
Lo
950
Quiet
780
X : 780
J : 680
[Quiet], the indoor motor will run at a constant airflow of [Cool]
When the room
temperature drops
=
(2°C)
=
(1°C)
> Tr-Ts
When the room
temperature rises
Tr-Ts > 5°F
Hi
5°F
Me
(2.5°C)
3°F
(1.5°C)
Lo
Tr : Room temperature
Ts : Setting temperature
01-04
=
(2.5°C)
> Tr-Ts > 3°F
=
(1.5°C)
> Tr-Ts