Fujitsu Airstage J-II, Service Manual

Page: 35 / 209

02-07
Capacity priority setting
Operation mode
Low noise level setting
ON
OFF
4HP
AJ*A36LALH
450
7
5HP
AJ*A45LALH
ON
ON
COOL
HEAT
«
Low noise mode and operation contents
»
( PUSH SW ) ( PUSH SW )
Normal operation
Low
capacity
Not switched for 30 minutes
after being once switched.
* Automatic switching
«
Settings and corresponding operations
»
LOW NOISE MODE
* Automatic switching
* Low capacity
Compressor capacity is low
or
High-pressure is high (high-pressure saturation 58°C) at cooling
or
Low-pressure is low (low-pressure saturation 0°C) at heating
Operation in 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.
LOW NOISE MODE The operating sound lowers from about 3 to 5 dB more than the rated value
Capacity does not become low
even when switched to low noise
mode
The operating noise is reduced by limiting the rotational speed of the compressor and fan motor
2-3-3 Low noise mode
410
40
450
7
410
45
450
7
410
52
450
7
410
60
450
7
410
60
450
7
410
60
6HP
AJ*A54LALH
Max FAN Step
Max FAN Step
Max Compressor Speed
Max Compressor Speed
Upper FAN
Lower FAN
Upper FAN
Lower FAN
Low Noise Mode