Fan Control; Indoor Fan Control - Fujitsu AO G12KBTB Series Service Instructions Manual

3. Fan control

Tr: Room temperature
Ts: Setting temperature

3-1. Indoor fan control

¢ Fan speed
Indoor fan speed is defined as below.
Operation mode
Heating
Cooling/Fan
Dry
*1: Fan mode only
*2: Cooling mode only
¢ Fan operation
Airflow can be switched in 5 steps such as AUTO, QUIET, LOW, MED, HIGH while indoor unit fan
only runs.
When fan mode is set at AUTO, it operates on MED fan speed.
¢ Cooling operation
Switch the airflow AUTO, and indoor fan motor will run according to room temperature, as below.
On the other hand, if switched in HIGH—QUIET, indoor motor will run at a constant airflow of COOL
operation modes QUIET, LOW, MED, HIGH as shown in "Fan speed" above.
Airflow change over (Cooling: Auto)
2°C
¢ Dry operation
During dry operation, fan speed setting can not be changed as shown in "Fan speed" above.
3-1. Indoor fan control
Fan mode
ARXG12KHTAP ARXG14KHTAP ARXG18KHTAP ARXG22KHTAP
HIGH 950
MED 780
LOW 690
QUIET 610
S-LOW 320
HIGH 950
MED 780
LOW 690
QUIET 610
Soft quiet
450*
S-LOW
320*
X zone: 610
J zone: 610
Tr - Ts ≥ 2°C
> Tr - Ts ≥ 1°C
1°C > Tr - Ts
When room
temperature drops
Speed (rpm)
1,000
820
740
640
330
1,000
820
740
640
1 1
470*
2 2
330*
X zone: 640
J zone: 640
Tr - Ts ≥
HIGH mode
2.5°C
MED mode
1.5°C > Tr - Ts
LOW mode
When room
temperature rises
- (01-10) -
820 820
660 660
590 590
520 520
350 350
820 820
660 660
590 590
520 520
1
480* 480*
2
350* 350*
X zone: 520 X zone: 520
J zone: 520 J zone: 520
2.5°C
> Tr - Ts ≥ 1.5°C
1
2
3. Fan control