8. Electrical Wiring
29
Multi V S Outdoor Unit
Installation of Outdoor Units
8.4 Night Low Noise Function
This function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low load.
Night low noise function setting method
Time Settings
• Request installer to set the function during installation.
• If ODU RPM changes, cooling capacity may go down.
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 10.5
op9 5 12
op10 Continuous operation
op11 Continuous operation
op12 Continuous operation
Master unit PCB DIP switch on : No.5
Select the mode using ‘ ඖ˅SG˄ඔ’ Button :
“Func” Push the ‘ ’ button
Select the Function using ‘ඖ˅SG˄ඔ’ Button :
“Fn3” Push the ‘ ’ button
Select the Option using ‘ ඖ˅SG˄ඔ’ Button :
“op1~op12” Push the ‘ ’ button
Start the Night low noise function :
Save the selected option value in EEPROM
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