Switching conditions of step
2-3 FAN CONTROL
2-3-1 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
600
500
420
360
320
300
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
intermittent 6
intermittent 5
intermittent 4
intermittent 3
intermittent 2
intermittent 1
0
880
860
810
720
600
500
420
360
320
300
880
860
810
720
600
500
420
360
320
300
920
870
820
720
600
500
420
360
320
300
920
870
820
720
600
500
420
360
320
300
AJ A72LALH AJ A90LALH AJ A108LALH AJ A126LALH AJ A144LALH
Fan speed (rpm)
02-06
(Conditions which lower the fan speed)
High-pressure saturation low limit of target high-pressure
saturation range and heat sink temperature 75°C
(Conditions which raise the fan speed)
High-pressure saturation upper limit of target high-pressure saturation or heat sink temperature 80°C
Fan step
16
10
7
0
Outside air temperature
sensor detected value
TAOUT 30°C
30°C TAOUT 20°C
20°C TAOUT 10°C
10°C TAOUT
The initial speed of the outdoor unit is detected by out door temperature sensor.
35 52
40.4
46.6
54
High-pressure saturation
temperature
Outdoor temperature
Upper limit of target
high-pressure saturation
temp.
Low limit of target
high-pressure saturation temp.
Target high-pressure
saturation temp.
Thereafter, the high-pressure is monitoring at a
set time interval and the fan speed is changed
by the following conditions.
The fan is controlled to keep high puressure saturation temperature
within the target range as follows
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