Fujitsu UTP-VX90A User Manual

Switching conditions of step
2-3 FAN CONTROL
2-3-1 Cooling Operation
Fan step
11
10
9
8
7
6
5
4
3
2
1
0
680
680
660
660
590
510
520
400
440
330
380
300
300
300
450
0
300
0
0
0
0
0
Fan speed (rpm)
02-04
(Conditions which lower the fan speed)
High-pressure saturation low limit of target high-pressure
saturation range and heat sink temperature
(Conditions which raise the fan speed)
High-pressure saturation upper limit of target high-pressure saturation or heat sink temperature
Fan step
9
7
4
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.
30 37.4
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
780
740
660
660
590
510
520
400
440
330
380
300
300
300
450
0
300
0
0
0
0
0
790
710
700
620
590
510
520
400
440
330
380
300
300
300
450
0
Intermittent 1
0
0
0
0
0
Step
Upper FAN
Lower FAN
AJ*072LELAH
AJ*090LELAH AJ*108LELAH
13
12
-
-
-
-
-
-
-
-
960
880
870
790
Intermittent 2
300
Intermittent 1
Intermittent 2
Intermittent 1
Intermittent 2
Intermittent 1 : 14 sec. ON (300rpm), 17 sec. OFF
Intermittent 2 : 19 sec. ON (300rpm), 17 sec. OFF
47.8
55°C: 8&10HP
60°C: 12HP
60°C: 8&10HP
65°C: 12HP

Fujitsu UTP-VX90A Specifications

General

Brand	Fujitsu
Model	UTP-VX90A
Category	Air Conditioner
Language	English