Field Wiring - LG Multi V Water IV ARWN080LAS4 Manual De Instalación

24

Field Wiring

Single outside unit
Outside
Power supply
(3Ø 4wires)
(Main Switch) [Outside Unit]
R S T N
Switch
Fuse
Indoor
Power supply
(1Ø 2wires)
L N
Power cable
(4 Wires Cable)
Power cable
(2 Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
Power cable Power cable
(2 Wires Cable) (2 Wires Cable)
Communication cable
(3 Wires Cable)
[Indoor Units]
WARNING
!
• Indoor Unit ground wires are required for preventing electrical
shock accident during current leakage, Communication disorder by
noise effect and motor current leakage (without connection to
pipe).
• Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an
integrated manner because this system consists of the equipment
utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, mo-
mentary blackout or the power goes on and off while the product is
operating, attach a reversed phase protection circuit locally. Run-
ning the product in reversed phase may break the compressor and
other parts.
[Heat Pump]
Between Indoor and Master Outside unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2
3 4 3 4
Voltage range(V)
Frequency
Outside
60Hz 380V
50Hz 380-415V 220-240V
Communication cable
(2 Wires Cable)
Pull Box Pull Box
(Installer option) (Installer option)
Power cable Power cable
(2 Wires Cable) (2 Wires Cable)
Master
GND 12V
Outside unit
The GND terminal at the
main PCB is a '-' terminal
3 4
for day contact, it is not
the point to make ground
connection.
Series outside units
When the power source is supplied to Each outside unit individually.
Outside
Power supply
(3Ø 4wires)
(Main Switch)
Indoor
R S T N
R S T N
Switch Switch
220V
Fuse Fuse
Indoor
Power supply
(1Ø 2wires)
L N
Power cable
(2 Wires Cable)
Power cable
(4 Wires Cable)
Voltage range(V)
Frequency
Outside
60Hz 380V
50Hz 380-415V 220-240V
! WARNING
• Indoor Unit ground wires are required for preventing electrical
shock accident during current leakage, Communication disorder by
noise effect and motor current leakage (without connection to pipe).
• Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an
integrated manner because this system consists of the equipment
utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, mo-
mentary blackout or the power goes on and off while the product is
operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor
and other parts.
[Heat Pump]
Between Indoor and Master Outside unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1
3 4 3 4
The GND terminal at the main PCB is a '-' terminal for dry contact.
It is not the point to make ground connection.
- Make sure that terminal number of master and slave outside unit s
are matched.(A-A,B-B)
[Master] [Slave1]
R S T N
R S T N
Switch Switch
Fuse Fuse
Pull Box Pull Box Pull Box Pull Box
(Installer option) (Installer option) (Installer option) (Installer option)
Power cable Power cable Power cable Power cable
(2 Wires Cable) (2 Wires Cable) (2 Wires Cable) (2 Wires Cable)
Communication cable
(3 Wires Cable)
[Indoor Units]
Indoor
220V
Master
DRY2 GND 12V
Outside unit SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A
3 4
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A
[Slave2] [Slave3]
Communication cable
(2 Wires Cable)
Master
DRY1 DRY2 GND 12V
Outside unit
Slave1
DRY1 DRY2 GND 12V
Outside unit
Slave2
DRY1 DRY2 GND 12V
Outside unit
Slave3
DRY1 DRY2 GND 12V Outside unit