Fujitsu AU G18LVLB Series Service Instruction page 10

5. COOL AIR PREVENTION CONTROL (Heating mode)
The maximum value of the indoor fan speed is set as shown in Figure 4, 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] or [Stop] mode.
( Fig 4 : Cool Air Prevention Control )
[ Cassette, Ceiling type ]
Indoor heat exchanger
temperature rises
42°C
*Me+
or setting fan mode
39°C
*Lo
or setting fan mode
37°C
Cool air
prevention
30°C
S-Lo
[ Duct type ]
Indoor heat exchanger
temperature rises
*Hi
or setting fan mode
37°C
*Lo
or setting fan mode
29°C
6. DRY OPERATION
Refer to the Table2
During the DRY mode operation, the fan speed setting can not be changed.
Indoor heat exchanger
temperature drops
Hi
37°C
34°C
32°C
24°C
*Lower speed is selected.
Indoor heat exchanger
temperature drops
32°C
24°C
S-Lo
*Lower speed is selected.
Indoor heat exchanger
temperature rises
42°C
39°C
37°C
13 min. later
30°C
Indoor heat exchanger
temperature rises
37°C
29°C
13 min. later
01-07
Indoor heat exchanger
temperature drops
Hi
*Me+
or setting fan mode
*Lo
or setting fan mode
*Lo
or setting fan mode
*Lo
or setting fan mode
*Lower speed is selected.
Indoor heat exchanger
temperature drops
Hi
*Lo
or setting fan mode
*Lo
or setting fan mode
*Lower speed is selected.
37°C
34°C
32°C
24°C
32°C
24°C