Indoor Fan Control - Fujitsu ASYA07LBCM Service Manual

3. INDOOR FAN CONTROL

1. Fan speed
( Table 2 : Indoor Fan Speed )
ASYA07/09LBCM
Operation mode
Cooling
Heating
Monitoring
Dry
(Refer Fig 2)
2. FAN OPERATION
The airflow can be switched in 6 steps such as AUTO, QUIET, LOW, MED, 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 Figure 1.
On the other hand, if switched in [HIGH]
operation modes QUIET, LOW, MED, HIGH,as shown in Table 2.
(Fig.1)
airflow change - over ( Cooling: AUTO )
TR-Ts > 2 degC
2 degC > TR-Ts > 1 degC
1 degC > TR-Ts
Air flow mode Speed (rpm)
Hi
Me
Lo
Quiet
Hi
Me+
Me
Lo
Quiet
Cool air prevention
S- Lo
X zone : 680
J zone : 650
Y zone : 0
[QUIET], the indoor motor will run at a constant airflow of [COOL]
Hi mode
=
Me mode
=
Lo mode
When the room
temperature lowers
ASYA12LBCM
Operation mode
1220 Cooling
1100
920
680
1220 Heating
1160
1100
980
700
600
480 Monitoring
Dry
(Refer Fig 2)
480
When the room
temperature rises
2.5 degC > TR-Ts > 1.5 degC
1.5 degC > TR-Ts
01-02
Air flow mode
Hi
Me
Lo
Quiet
Hi
Me+
Me
Lo
Quiet
Cool air prevention
S- Lo
TR : Room temperature
Ts : Setting temperature
TR-Ts > 2.5 degC
=
=
Speed (rpm)
1440
1200
920
680
1440
1370
1200
980
700
600
480
X zone : 680
J zone : 650
Y zone : 0 480