Heating Operation - Fujitsu AUXB04GALH Service Manual

Intermittent fan mode
When switched from normal fan step to intermittent fan step, always start from 300rpm/7sec.
When there was a change during intermittent step 1-6, switching is performed at the time the current speed
duration time reaches time-up.
Fan step Fan mode
6 intermittent 6
5 intermittent 5
4 intermittent 4
3 intermittent 3
2 intermittent 2
1 intermittent 1
Normal fan step
300 rpm
0 rpm

2-4-2 Heating Operation

(1) Heating Operation
The fan speed during all heating is constant with Fan step 16* regardless of the outdoor air temperature.
( rpm )
970
920
880
-20
Heating Operating range
Fan speed 0 rpm
duration time T ( sec )
40
33
26
19
12
6
Intermitten fan step
7 sec 7 sec
[ T ] sec
AJ* 144/ 162L
AJ* 108/ 126L
AJ* 072/ 090L
21
Fan speed 300 rpm
duration time ( sec )
7
7 sec
[ T ] sec
Fan step
16*
15
14
13
12
11
( )
02-09
Time
Fan speed (rpm)
AJ* 072/ 090L AJ* 108/ 126L
880
920
860 870
810 820
720
720
620 620
500 500
AJ* 144/ 162L
970
870
820
720
620
500