Fujitsu ABYG18KRTA, Service Manual

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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: AOYG18KBTB
Fan speed is defined by outdoor temperature and compressor frequency.
• Outside air temperature zone selection
21 °C
Outside air
temperature rises
Z zone
Y zone
F zone
G zone
Outside air
temperature drops
12 °C
2 °C
-8 °C
19 °C
10 °C
0 °C
-10 °C
H zone
Unit: rpm
Fan step
Cooling
Heating
Dry Cooling or dry at low outdoor temp.
Y zone Y zone Z zone F zone G zone H zone
S-HIGH2 — 1,100 — — — — —
S-HIGH1 1,050 1,100 — — — — —
HIGH 1,050 1,100 — — — — —
10 — 1,100 — — — — —
9 1,050 1,100 1,050 850 320 270 270
8 1,050 750 1,050 850 320 270 270
7 870 710 870 770 320 270 270
6 870 570 870 630 270 230 230
5 770 510 770 440 270 230 200
4 630 470 630 320 270 230 200
3 510 420 510 320 270 230 200
2 400 420 400 320 270 230 200
1 400 420 400 320 270 230 200
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
- (04-18) -
3. Fan control
CONTROL AND FUNCTIONS CONTROL AND FUNCTIONS