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TEST RUN
83
ENGLISH
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
Time Settings Noise
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn3” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“op1~op12” Push the ‘●’ 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 Continuous operation
op12 Continuous operation
Capacity
Heat Pump 8HP(6Ton)
10~14HP,
18HP(8~14Ton)
Step Noise(dB)
op1~op3, op10 55 59
op4~op6, op11 52 56
op7~op9, op12 49 53
CAUTION
• Request installer to set the function during installation.
• If ODU RPM changes, cooling capacity may go down.
!
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