Low Noise Mode - Fujitsu AUXB04GALH Service Manual

2-3-3 Low noise mode

When the low noise mode setting ON from PUSH SW or EXTERNAL INPUT, the outdoor unit operates in
the low noise mode as follows.
«
Settings and corresponding operations
Capacity priority setting
( PUSH SW )
OFF
ON
«
Low noise mode and operation contents
COOL
L ow Noise Mode
Level 1
HEAT
COOL
L ow Noise Mode
Level 2
HEAT
The operating noise is reduced by limiting the rotational speed of the compressor and fan motor
LOW NOISE MODE
* Automatic switching
Operation in low noise mode
Low
capacity
Normal operation
»
Low noise level setting
( PUSH SW )
ON
ON
»
Max FAN Step
Upper FAN
Lower FAN
Max Compressor Speed
Max FAN Step
Upper FAN
Lower FAN
Max Compressor Speed
Max FAN Step
Upper FAN
Lower FAN
Max Compressor Speed
Max FAN Step
Upper FAN
Lower FAN
Max Compressor Speed
The operating sound lowers from about 3 to 5 dB more than the rated value
Not switched for 30 minutes
after being once switched.
Capacity does not become low
even when switched to low noise
mode
Operation mode
LOW NOISE MODE
* Automatic switching
AJ*072LELAH AJ*090LELAH AJ*108LELAH
9
8
590
520
510
400
63
48
9
8
520 590
400
510
65
55
8
7
520
440
330 400
47
35
8
7
440
520
330
400
48
37
* Low capacity
Compressor capacity is low
or
High-pressure is high (high-pressure saturation
or
Low-pressure is low (low-pressure saturation
02-06
10
700
620
80
10
700
620
85
8
520
400
54
8
520
400
58
58°C) at cooling
0°C) at heating