LG Multi V IV PRHR041 - Static Pressure Compensation Mode; Night Low Noise Function; Overall Defrost Mode

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ENGLISH
Group recognizing the central controller
No.0 group (00~0F)
No.1 group (10~1F)
No.2 group (20~2F)
No.3 group (30~3F)
No.4 group (40~4F)
No.5 group (50~5F)
No.6 group (60~6F)
No.7 group (70~7F)
No.8 group (80~8F)
No.9 group (90~9F)
No. A group (A0~AF)
No. B group (B0~BF)
No. C group (C0~CF)
No. D group (D0~DF)
No. E group (E0~EF)
No. F group (F0~FF)
WARNING
• Valve address and central control address of its corresponding in-
door unit should be set identical in manual addressing.
!
Valve (04)
EX)
Valve (03)
Valve (02)
Valve (01)
Indoor unit (04)
Indoor unit (03)
Indoor unit (02)
Indoor unit (01)
Central control address
HR unit
FAN Maximum RPM of each step
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn2” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“op1~op3” Push the ‘●’ button
Start the Static pressure compensation mode :
Save the selected option value in EEPROM
Capacity 8~12 HP 14~20 HP
Max. RPM
Standard 730 950
op1 760 1020
op2 780 1050
op3 800 1130
Time Settings
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
Noise
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
CAUTION
• Request installer to set the function during installation.
• If ODU RPM changes, cooling capacity may go down.
!
Master unit PCB DIP switch on : No.5
Select the mode using ‘▶’, ‘◀’ Button :
“Func” Push the ‘●’ button
Select the Function using ‘▶’, ‘◀’ Button :
“Fn4” Push the ‘●’ button
Select the Option using ‘▶’, ‘◀’ Button :
“on” ~ “oFF” Push the ‘●’ button
Overall defrost mode is set
Overall defrost mode
Mode setting method
Mode setting
- on: Operate overall defrost
- off: Operate partial defrost
CAUTION
• Ask an authorized technician to setting a function.
!
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
Static pressure compensation mode
This function secures the air flow rate of ODU, in case static pressure
has been applied like using duct at fan discharge of ODU.
Static pressure compensation mode setting method