Low Noise Mode - Fujitsu Airstage J-II Service Manual

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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
Low Noise Mode
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
Capacity does not become low
even when switched to low noise
mode
Normal operation
»
Low noise level setting
( PUSH SW )
ON
ON
»
AJ*A36LALH
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.
Operation mode
LOW NOISE MODE
* Automatic switching
4HP 5HP
AJ*A45LALH
7
7
450
450
410
410
40 45
7
7
450
450
410 410
60
60
* Low capacity
Compressor capacity is low
or
High-pressure is high (high-pressure saturation
or
Low-pressure is low (low-pressure saturation
02-07
6HP
AJ*A54LALH
7
450
410
52
7
450
410
60
58°C) at cooling
0°C) at heating