Fujitsu AUXB12GA* H - 2-4 FAN CONTROL

2-4 FAN CONTROL
2-4-1 Cooling Operation
Fan step
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
880
860
810
720
620
500
420
360
320
300
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
920
870
820
720
620
500
420
360
320
300
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
970
870
820
720
620
500
420
360
320
300
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
Fan speed (rpm)
02-08
(Conditions which raise the fan speed)
High-pressure saturation upper limit of target high-pressure saturation or heat sink temperature 80°C
(Conditions which lower the fan speed)
High-pressure saturation low limit of target high-pressure saturation range and heat sink temperature 75°C
The outdoor fan speed at start up is 300 rpm
35.0
52.0
40.4
46.6
54.0
High-pressure saturation temp.
Outdoor temperature
Upper limit of target high-pressure
saturation temp.
Low limit of target high-pressure saturation temp.
Target high-pressure
saturation temp.
The fan speed is controlled to keep high pressure saturation temperature within the target range as follows
The high-pressure is monitoring at a set time interval and the fan speed is changed by the following conditions.
<< Ex. Cooling operaion >>
920
870
820
720
620
500
420
360
320
300
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
970
870
820
720
620
500
420
360
320
300
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
AJ* 072LALBH
AJ* 072LATBH
AJ* 090LALBH
AJ* 090LATBH
AJ* 108LALBH
AJ* 108LATBH
AJ* 162LALBH
AJ* 162LATBH
AJ* 126LALBH
AJ* 126LATBH
AJ* 144LALBH
AJ* 144LATBH