Outdoor Fan Control - Fujitsu AGYG09KVCB Service 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
 Model: AOYG09KVCBN
Fan speed is defined by outdoor temperature and compressor frequency.
• Outside air temperature zone selection
Fan step
S-HIGH2
S-HIGH1
HIGH
10
9
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: 1,140 rpm
3-2. Outdoor fan control
Outside air
temperature rises
21°C
12°C
2°C
Cooling
Heating
Y zone
— 1,140
1,050 1,140
1,050 870
— 870
1,050 870
970 850
750 850
750 700
650 700
510 700
400 420
400 420
400 420
Outside air
temperature drops
Y zone
Z zone
F zone
G zone
Dry Cooling or dry at low outdoor temp.
Y zone Z zone
— —
— —
— —
— —
1,050 1,050
970 970
750 750
750 750
650 650
510 510
400 400
400 400
400 400
- (04-14) -
19°C
10°C
0°C
Unit: rpm
F zone G zone
—
—
—
—
200
200
200
200
200
200
200
200
200
—
—
—
—
190
190
190
190
190
190
190
190
190
3. Fan control