Outdoor Fan Control - Fujitsu AO G24KATA Series Service Instruction

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
 Model: AOYG24KATA
Fan speed is defined by outdoor temperature and compressor frequency.
• Outside air temperature zone selection
Cooling
Fan step
Y zone
S-HIGH2
S-HIGH1 1,050
HIGH 1,050
10
9 1,050
8 1,050
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: 1,100 rpm
3-2. Outdoor fan control
Outside air
temperature rises
21°C
12°C
2°C
-8°C
Heating
Y zone
— 1,100
1,100
1,100
— 1,100
1,100
940
900 680
860 570
690 510
550 470
440 420
400 420
400 420
Outside air
temperature drops
Y zone
Z zone
F zone
G zone
H zone
Dry Cooling or dry at low outdoor temp.
Z zone
— —
— —
— —
— —
1,050 850
1,050 850
900 630
860 440
690 440
550 320
440 320
400 320
400 320
- (04-10) -
19°C
10°C
0°C
-10°C
F zone G zone
— —
— —
— —
— —
440 320
440 320
440 320
320 270
270 230
270 230
270 230
270 230
270 230
Unit: rpm
H zone
—
—
—
—
270
270
270
230
200
200
200
200
200
3. Fan control