Fujitsu AU G12LVLB Series Service Instruction page 13

7. COOL AIR PREVENTION CONTROL (Heating mode)
The maximum value of the indoor fan speed is set as shown in Figure 8, based on the detected
temperature by the indoor heat exchanger sensor on heating mode.
When the compressor does not operate, the indoor fan motor operates [S-Lo] mode.
( Fig.8 : Cool Air Prevention Control )
7-1. For AB*G18LVTB
During Normal Heating operation
Indoor heat exchanger
temperature rises
42°C
*Me+
or setting fan mode
39°C
*Lo
or setting fan mode
37°C
30°C
*Lower speed is selected.
7-2. For AR*G12/ 14/ 18LLTB / AR*G12/ 14/ 18LSLAP
During Normal Heating operation
Indoor heat exchanger
temperature rises
*Hi
or setting fan mode
37°C
*Lo
or setting fan mode
29°C
*Lower speed is selected.
7-3. For AU*G12/ 14 18LVLB
During Normal Heating operation
Indoor heat exchanger
temperature rises
42°C
*Me+
or setting fan mode
39°C
*Lo
or setting fan mode
37°C
30°C
*Lower speed is selected.
Indoor heat exchanger
temperature drops
Hi
37°C
34°C
32°C
Cool air
prevention
24°C
S-Lo
Indoor heat exchanger
temperature drops
32°C
24°C
S-Lo
Indoor heat exchanger
temperature drops
Hi
37°C
34°C
32°C
Cool air
prevention
24°C
S-Lo
01-08
During 10°C Heat operation
Indoor heat exchanger
temperature rises
Auto
39°C
Lo
During 10°C Heat operation
Indoor heat exchanger
temperature rises
Auto
37°C
Lo
During 10°C Heat operation
Indoor heat exchanger
temperature rises
Auto
39°C
Lo
Indoor heat exchanger
temperature drops
34°C
Indoor heat exchanger
temperature drops
32°C
Indoor heat exchanger
temperature drops
34°C