Outdoor Fan Control - Fujitsu AU G18LVLB Series Service Instruction

1-5. OUTDOOR FAN CONTROL

1. Outdoor Fan Motor
Following table shows the fan speed of the outdoor unit.
( Table 3 : Fan speed of the outdoor unit )
AO*G72LRLA
AO*G90LRLA
The outdoor fan speed changes in the range mentioned above depending on the compressor
*
frequency and outdoor temperature.
(When the compressor frequency and outdoor temperature increase, the outdoor fan speed
also changes to the higher speed.
When the compressor frequency and outdoor temperature decrease, the outdoor fan
speed also changes to the lower speed.)
The compressor and the fan start-up at the same time, and the fan stops after the compressor
*
stops and 60 seconds has passed.
The fan doesn't operates fan 10 seconds after the fan stops.
*
After operating the defrost control function on heating mode except economy operation,
*
its speed becomes 780(Upper) / 740(Lower)(90). 680(Upper) /680(Lower)(72) regardless of the
compressor speed.
However, it returns to the normal speed control when the defrosting operation does not function
for 240 minutes after releasing the defrost operation or when the outdoor temperature sensor
detection value becom
It runs at 500rpm for 20 seconds after starting up the outdoor fan.
*
However, the fan
Cooling
780/ 680/ 660/ 590/
Upper fan
520/ 450/ 440/ 380/ 300 rpm
740/ 680/ 660/ 510/ 400/
Lower fan
330/ 300 rpm
780/ 730/ 660/ 590/
Upper fan
520/ 450/ 440/ 380/ 300 rpm
740/ 690/ 660/ 510/ 400/
Lower fan
330/ 300 rpm
°
es higher than 5
C
operates at 300rpm when the initial rotation speed is 300rpm or less.
680/ 660/ 590/ 520/
450/ 440/ 380/ 300 rpm
680/ 660/ 510/ 400/ 330/ 300 rpm
780/ 730/ 660/ 590/
520/ 450/ 440/ 380/ 300 rpm
740/ 690/ 660/ 510/ 400/
330/ 300 rpm
.
01-08
Heating