Outdoor Fan Control - Fujitsu AB*A30LBT Service Instruction

5-6. OUTDOOR FAN CONTROL

1. Outdoor Fan Motor
1-1. For AO*A30/ 36LBTL ( AB*A30 / 36LBT , AR*A30 / 36LBTU )
Following table shows the fan speed of the outdoor unit.
Table 6 : Fan speed of the outdoor unit
AO*A30LBTL
AO*A36LBTL
AO*A30LBTL
AO*A36LBTL
Outdoor temperature zone
D zone ( Normal )
12
°C
F zone
2
°C
G zone
The outdoor fan speed is changed in the range of the speed shown in the above table,
based on the frequency of the compressor.
(When the compressor frequency increases, the outdoor fan speed is also changed to
higher speed. If the compressor frequency decreases, the outdoor fan speed is changed
to the lower speed as well.)
After starting up the outdoor fan, it operates with the following speed for initial 20 seconds.
Table 7 : Fan speed when starting up outdoor fan
AO*A30LBTL
AO*A36LBTL
After operating the defrost control function on heating mode except economy operation,
its speed becomes 900rpm
regardless of the compressor frequency.
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 becomes higher than 5°C.
Outdoor temperature [Ta]
Ta > 12
°C
12 > Ta > 2
°C °C
2 > Ta
°C
Ta > 12
°C
12 > Ta > 2
°C °C
2 > Ta
°C
Heating
900/ 780/ 700/ 550/ 450 rpm
Outdoor temperature zone
COOL D zone (Normal) / HEATING
COOL F,G zone
Cooling
900/ 850/ 780/ 700/ 500 rpm
340/ 320/ 250/ rpm
260/ 250/ rpm
850/ 780/ 700/ 500 rpm
340/ 320/ 250/ rpm
260/ 250/ rpm
10
°C
0
°C
Fan speed
05-07
Dry
500 rpm
340/ 320/ 250/ rpm
260/ 250/ rpm
500 rpm
340/ 320/ 250/ rpm
260/ 250/ rpm
500 rpm
200 rpm