LG Multi V 5 ARUV144BTE5, Руководство по установке, Страница: 24 / 41

24
ENGLISH
• Some installation site may require attachment of an earth leakage
breaker. If no earth leakage breaker is installed, it may cause an
electric shock.
• Do not use anything other than breaker and fuse with correct
capacity. Using fuse and wire or copper wire with too large capacity
may cause a malfunction of unit or fire.
• Follow ordinance of your governmental organization for
technical standard related to electrical equipment, wiring
regulations and guidance of each electric power company.
• Make sure to use specified cables for connections so that no
external force is imparted to terminal connections. If
connections are not fixed firmly, it may cause heating or fire.
• Make sure to use the appropriate type of overcurrent protection
switch. Note that generated overcurrent may include some
amount of direct current.
Ground wire
1
The power wire Between the master outdoor unit and slave1
outdoor unit - minimum : 6 mm
2
[9.3 × 10
-3
inch
2
]
2
The power wire Between the slave1 outdoor unit and slave2
outdoor unit - minimum : 4 mm
2
[6.2 × 10
-3
inch
2
]
3
The power wire Between the slave2 outdoor unit and slave3
outdoor unit - minimum : 2.5 mm
2
[3.875 × 10
-3
inch
2
]
h
The above standard is CV wire standard.
h
Please use the 3-phases 4-wires quadrupole Leakage circuit breaker
of circuit breaker.
The thickness of Minimum wire (mm
2
[ inch
2
])
Leakage
circuit breaker
(4P ELCB)
Main power
wire
Branch wire Ground wire
1 Unit
2.5~16
[3.875 × 10
-3
~2.48 × 10
-2
]
-
2.5~4
[3.875 × 10
-3
~6.2 × 10
-3
]
Below 20~60 A
100 mA 0.1 sec
2 Unit
16~50
[2.48 × 10
-2
~7.75 × 10
-2
]
-
4~10
[6.2 × 10
-3
~1.55 × 10
-2
]
Below 75~150 A
100 mA 0.1 sec
3 Unit
50~95
[7.75 × 10
-2
~1.4725 × 10
-1
]
-
10
[1.55 × 10
-2
]
Below 150~200 A
100 mA 0.1 sec
4 Unit
95~120
[1.4725 × 10
-1
~1.86 × 10
-1
]
-
10~16
[1.55 × 10
-2
~2.48 × 10
-2
]
Below 200~250 A
100 mA 0.1 sec
Field Wiring
220-240V
Example Connection of Communication Cable
1 Outdoor Unit-3 Ø, 220-240 V
Switch
ELCB
Communication Line
(2 Wires Cable)
Power Line
(3 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
ELCB
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Outdoor Unit]
[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)
Pull box
(Installer option) Pull box
(Installer option) Pull box
(Installer option)
L(L1) N(L2)
R(L1) S(L2) T(L3)
3(A) 4(B)
A 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
Between Indoor and Master Outdoor unit
• 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.
• When using shielded wires, perform a single-point grounding only
to the outdoor unit for grounding of communication wires.
Wiring of main power supply and equipment
capacity
- Use a separate power supply for the Outdoor Unit and Indoor Unit.
- Bear in mind ambient conditions (ambient temperature,direct
sunlight, rain water,etc.) when proceeding with the wiring and
connections.
- The cable size is the minimum value for metal conduit wiring. The
power cord size should be 1 rank thicker taking into account the line
voltage drops. Make sure the power-supply voltage does not drop
more than 10 %.
- Specific wiring requirements should adhere to the wiring regulations
of the region.
- Power supply cords of parts of appliances for outdoor use should not
be lighter than polychloroprene sheathed flexible cord.
- Don't install an individual switch or electrical outlet to disconnect
each of indoor unit separately from the power supply.
WARNING
!
WARNING
!
CAUTION
!
1,MFL67221443,영영 19. 1. 31. 영영 11:48 Page 24