Outdoor Fan Control - Fujitsu AO G12KBTB Series Service Instructions Manual

3-2. Outdoor fan control

¢ Outdoor fan motor
This outdoor unit has a DC fan motor. (Control method is different between AC and DC motors.)
¢ Fan speed
 Models: AOYG12KBTB and AOYG14KBTB
Fan speed is defined by outdoor temperature and compressor frequency.
• Outside air temperature zone selection
Cooling
Fan step
Y zone
S-HIGH2
S-HIGH1 1,100
HIGH 1,100
10
9 1,100
8
7
6
5
4
3
2
1
NOTE: After defrost control on the heating mode, the fan speed is kept higher regardless of the
compressor frequency.
Fan speed after defrost control: 1,120 rpm
3-2. Outdoor fan control
Outside air
temperature rises
21°C
12°C
2°C
-8°C
Heating
Y zone
— 1,120
1,120
1,120
— 1,120
870
920 830
870 800
830 800
830 800
670 660
570 500
570 500
520 500
Outside air
temperature drops
Y zone
Z zone
F zone
G zone
H zone
Dry Cooling or dry at low outdoor temp.
Z zone
— —
— —
— —
— —
1,100 630
920 630
870 630
830 630
830 610
670 450
570 310
570 200
520 200
- (01-13) -
19°C
10°C
0°C
-10°C
F zone G zone
— —
— —
— —
— —
450 300
450 300
450 300
420 280
300 250
240 220
220 200
220 200
200 200
Unit: rpm
H zone
—
—
—
—
280
280
280
250
220
200
200
200
200
3. Fan control