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Copyright ©2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.13 Night Low Noise Function
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.
Night low noise function setting method
Function
CAUTION
• Request installer to set the function during installation.
• In case the function is not used, set the dip S/W OFF and reset the power.
• If ODU RPM changes, cooling capacity may go down.
RPM / Time Settings Noise
Master unit PCB DIP switch on : No.5
Select the mode using ʻ▶ʼ, ʻ◀ʼ Button : “Func” Push
the ʻ●ʼ button
Select the Function using ʻ▶ʼ, ʻ◀ʼ Button : “Fn3”
Push the ʻ●ʼ button
Select the Option using ʻ▶ʼ, ʻ◀ʼ Button : “op1~op12”
Push the ʻ●ʼ button
Start the Night low noise function :
Save the selected option value in EEPROM
Step Judgment Time(Hr) Operation Time(Hr)
op1 8 9
op2 6.5 10.5
op3 5 12
op4 8 9
op5 6.5 10.5
op6 5 12
op7 8 9
op8 6.5 10
op9 5 12
op10
Continuous operation op11
op12
Capacity
Heat Pump 8~12HP 14~20HP
Step Noise(dB)
op1~op3, op10 55 59
op4~op6, op11 52 56
op7~op9, op12 49 53