Outdoor Fan Control - Fujitsu ASU 9RLF1 Service Instruction

6. OUTDOOR FAN CONTROL

1. Outdoor Fan Motor
The Table 6 shows the type of the outdoor fan motor. The control method is different
between AC motor and DC motor.
( Table 6 : Type of Motor )
AOU9/ 12RLFW1
2. Fan Speed
( Table 7 : Outdoor fan speed )
AOU9RLFW1
AOU12RLFW1
Refer to Fig. 7
( Fig. 7 : Outside air temperature zone selection )
Outside air
temperature
69.8°F (21°C)
53.6°F (12°C)
35.6°F ( 2°C)
* The outdoor fan speed mentioned above depends on the compressor frequency.
(When the compressor frequency increases, the outdoor fan speed also changes to the higher
speed. When the compressor frequency decreases, the outdoor fan speed also changes to the
lower speed.)
* After the defrost control is operated on the heating mode, the fan speed keeps at the higher speed
as Table 8 without relating to the compressor frequency.
( Table 8 : Outdoor fan speed after the defrost )
AOU9RLFW1
AOU12RLFW1
AC Motor
Zone Cooling
Y 860/ 780/ 760/ 470
Z 860/ 470/ 330
F 230/ 150
G 230/ 150
Y 850/ 750/ 670/ 500
Z 850/ 500/ 350
F 330/ 230
G 330/ 230
Outside air
temperature
Y zone
Z zone
F zone
G zone
900rpm
950rpm
DC Motor
900/ 760/ 720/ 680/ 470
950/ 850/ 750/ 680/ 550/ 480
66.2°F (19°C)
50°F (10°C)
32°F ( 0°C)
01-06
Heating Dry
760/ 470
760/ 470
(rpm)