Indoor Fan Control - Fujitsu AB A30LBT Series Service Instruction

1-5. INDOOR FAN CONTROL

1. Fan speed
( Table 5 : Indoor Fan Speed )
AU*A30/36LBLU
Operation mode
Cooling
Heating
Dry
Monitoring
AB*A30/36LBT
Operation mode
Cooling / Heating
Dry
Monitoring
2. FAN OPERATION
The airflow can be switched in 5 steps such as AUTO, QU, LOW, MED, HIGH, while the indoor
fan only runs.
When [AUTO] is selected, the indoor fan motor runs continuously [MED] mode.
3. COOLING OPERATION
Switch the airflow [AUTO], and the indoor fan motor will run according to a room temperature,
as shown in Figure 6.
On the other hand, if switched in [HIGH]
operation modes QU, LOW, MED, HIGH,as shown in Table 5.
( Fig.6 : Airflow change - over ( Cooling : AUTO ) )
TR-Ts > 2 °C
=
2 °C > TR-Ts > 1 °C
=
1 °C > TR-Ts
When the room
temperature drops
Air flow mode Speed (rpm)
Hi 650
Me 550
Lo 500
Qu 400
Hi 650
Me+ 600
Me 550
Lo 500
Qu 400
Cool Air Prevention 350
Auto 400
S-Lo 250
Air flow mode Speed (rpm)
Hi 830
Me 700
Lo 600
Qu 550
Auto 400
S-Lo 250
[QU], the indoor motor will run at a constant airflow of [COOL]
HIGH mode
MED mode
LOW mode
When the room
temperature rises
AR*A30/36LBTU
Operation mode
Cooling
Heating
Dry
Monitoring
TR-Ts > 2.5 °C
=
2.5 °C > TR-Ts > 1.5 °C
=
1.5 °C > TR-Ts
01-05
Air flow mode Speed (rpm)
Hi 1200
Me 1000
Lo 830
Qu 650
Hi 1200
Me+ 1100
Me 1000
Lo 830
Qu 650
Cool Air Prevention 500
Auto 650
S-Lo 250
TR : Room temperature
Ts : Setting temperature