LG ARUN096BT2 Installation Manual - Page 77

Night Low Noise Function

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ENGLISH Night Low Noise Function Test Run In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low cooling load. Max. RPM setting method Dip S/W No.12+14 ON Master ODU SW01B Main PCB Power Reset Note 1) STEP 1: Max. RPM =510 Black button 1 time + red button 1 time STEP 2: Max. RPM = 450 Black button 2 times + red button 1 time STEP 3: Max. RPM = 400 Black button 3 times + red button 1 time Master ODU SW01S SW01V SW02V Setting Complete Night Low Noise Start 8 hours after max. ODU temp. sensing, Operates with setting RPM Night Low Noise End 9 hours after Night Low Noise function start, the function ends automatically. Caution 1. Request installer to set the function during installation. 2. In case the function is not used, set the dip S/W OFF and reset the power. 3. If ODU RPM changes, cooling capacity may go down. [Note] 1. Select appropriate RPM referencing noise table. Installation Manual 77

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Installation Manual
77
Test Run
ENGLISH
In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at
night which has low cooling load.
[Note]
1. Select appropriate RPM referencing noise table.
Caution
1. Request installer to set the function during installation.
2. In case the function is not used, set the dip S/W OFF and reset the power.
3. If ODU RPM changes, cooling capacity may go down.
Main PCB Power Reset
Dip S/W No.12+14 ON
Master ODU
SW01S
Master ODU
SW01B
STEP 1: Max. RPM =510
Black button 1 time + red button 1 time
STEP 2: Max. RPM = 450
Black button 2 times + red button 1 time
STEP 3: Max. RPM = 400
Black button 3 times + red button 1 time
Setting Complete
SW01V
SW02V
8 hours after max. ODU temp. sensing,
Operates with setting RPM
9 hours after Night Low Noise function
start, the function ends automatically.
Note 1)
Max. RPM setting method
Night Low Noise Start
Night Low Noise End
Night Low Noise Function