LG Multi V 5 ARUV144BTE5, Installation Manual, Page: 25 / 41

25
ENGLISH
2 Outdoor Units-3 Ø, 220-240 V
When the power source is connected In series between the units.
Communication Line
(2 Wires Cable)
Power Line
(3 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Master]
[Indoor Units]
(Main Switch)
[Slave]
Pull Box
(Installer option) Pull Box
(Installer option) Pull Box
(Installer option) Pull Box
(Installer option)
nication L
es Cable
Com
Power
(2 Wires
Powe
(2 Wires C
er Line
(2 Wires Ca
[Master] [Sla
Power
2 Wir
Power supply
3 Phase 3 Wires
50 Hz 220-240 V
60 Hz 220 V
Power supply
1 Phase
50 Hz 220-240 V
60 Hz 220 V
R S T
Switch
ELCB
ELCB
L(L1) N(L2)
When the power source is supplied to Each outdoor unit individually.
Switch
Communication Line
(2 Wires Cable)
Power Line
(3 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Master]
[Indoor Units]
Power supply
3 Phase 3 Wires
50 Hz 220-240 V
60 Hz 220 V
Power supply
1 Phase
50 Hz 220-240 V
60 Hz 220 V
(Main Switch)
[Slave]
Switch
ELCB ELCB
Pull box
(Installer option) Pull box
(Installer option) Pull box
(Installer option)
ELCB
L(L1) N(L2)
R(L1) S(L2) T(L3) R(L1) S(L2) T(L3)
NOTE
!
- Field wiring diagram is to be used as a guidelineonly. Wiring
should comply with applicable local and national codes
- ELCB must have function to prevent electrical short and over
current at the same time .
- Use copper wires only.
- Unit must be grounded in compliance with the applicable local
and national codes.
- ELCB and fuse/breaker must install to the power line
• Indoor unit ground lines 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,
momentary 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.
Master
Outdoor Unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
Slave
Outdoor Unit
3(A) 4(B) 3(A) 4(B) 3(A) 4(B) 3(A) 4(B)
Master
Outdoor Unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
A B
Between Indoor and Master Outdoor unit
• It is not the point to make ground connection.
- Make sure that terminal number of master and slave outdoor units
are matched.(A-A,B-B)
3 Outdoor Units-3 Ø, 220-240 V
When the power source is connected In series between the units.
Communication Line
(2 Wires Cable)
Power Line
(3 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Master]
[Indoor Units]
(Main Switch)
[Slave1] [Slave2]
Pull Box
(Installer option) Pull Box
(Installer option) Pull Box
(Installer option) Pull Box
(Installer option)
Communic
(3 W
Po
(2 Wire
ne
Wires Cable)
Power
(2 Wires
[Master] [Slav
)
Power Lin
2 Wires Ca
Switch
ELCB
ELCB
Power supply
3 Phase 3 Wires
50 Hz 220-240 V
60 Hz 220 V
Power supply
1 Phase
50 Hz 220-240 V
60 Hz 220 V
L(L1) N(L2)
R(L1) S(L2) T(L3)
Switch
Communication Line
(2 Wires Cable)
Power Line
(3 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Master]
[Indoor Units]
Power supply
3 Phase 3 Wires
50 Hz 220-240 V
60 Hz 220 V
Power supply
1 Phase
50 Hz 220-240 V
60 Hz 220 V
(Main Switch)
[Slave1] [Slave2]
Switch Switch
ELCB ELCB ELCB
Pull box
(Installer option) Pull box
(Installer option) Pull box
(Installer option)
ELCB
L(L1) N(L2)
R(L1) S(L2) T(L3) R(L1) S(L2) T(L3) R(L1) S(L2) T(L3)
When the power source is supplied to Each outdoor unit individually.
WARNING
!
1,MFL67221443,영영 19. 1. 31. 영영 11:48 Page 25