Fujitsu ACUH09LUAS1, 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: AOUH09LUAS1
Fan speed is defined by outdoor temperature and compressor frequency.
• Outside air temperature zone selection
Outside air
temperature rises
Z zone
Y zone
F zone
G zone
Outside air
temperature drops
H zone
53.6°F
( 12 °C)
35.6°F
( 2 °C)
50.0 °F
( 10 °C)
32.0 °F
( 0 °C)
17.6°F
( -8 °C)
14.0°F
(
-10 °C)
69.8°F
( 21 °C)
66.2 °F
( 19 °C)
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 — 1,120 — — — — —
S-HIGH1 990 1,120 — — — — —
HIGH 990 1,120 — — — — —
10 — 1,120 — — — — —
9 990 1,120 990 390 320 240 240
8 940 1,120 940 390 320 240 240
7 810 940 810 390 320 240 240
6 810 810 810 300 240 200 200
5 810 690 810 250 240 200 200
4 790 630 790 250 240 200 200
3 710 570 710 250 240 200 200
2 660 570 660 250 240 200 200
1 620 570 620 250 240 200 200
NOTE: After defrost control on the heating mode, the fan speed is kept higher regardless of the
compressor frequency.
Fan speed after defrost control: 1,120 rpm
3-2. Outdoor fan control
- (04-13) -
3. Fan control
C
O
N
TR
O
L
A
N
D
FU
N
C
TI
O
N
S
C
O
N
TR
O
L
A
N
D
FU
N
C
TI
O
N
S