LG Multi V 5 ARUM080LTE5, Installation Manual

Page: 35 / 55

35
ENGLISH
CAUTION
• 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.
!
WARNING
• 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 seconds
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 seconds
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 seconds
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 seconds
(1) European / International Technical Standard setting the limits for
voltage changes, voltage fluctuations and flicker in public low-
voltage supply systems for equipment with rated current
≤
75 A.
(2) European / International Technical Standard setting the limits for
harmonic currents produced by equipment connected to public low-
voltage systems with input current >16 A and
≤
75 A per phase.
Standard combination of
outdoor units
Zmax ( Ω )
Minimum Ssc Value
(kVA)
ARUM080LTE5 - 2776
ARUM100LTE5 - 3828
ARUM120LTE5 - 3828
ARUM140LTE5 - 6339
ARUM160LTE5 - 6339
ARUM180LTE5 - 6339
ARUM200LTE5 - 6339
ARUM220LTE5 - 6339
ARUM240LTE5 - 8144
ARUM260LTE5 - 8144
Outdoor unit Current(max)
Minimum cross-sectional area of power
supply (mm^2)
ARUM080LTE5 18.2 2.5
ARUM100LTE5 25.1 4
ARUM120LTE5 25.5 4
ARUM140LTE5 26.9 4
ARUM160LTE5 27.3 4
ARUM180LTE5 45.5 10
ARUM200LTE5 47.3 10
ARUM220LTE5 48 10
ARUM240LTE5 23.6 10
ARUM260LTE5 54.5 10
Field Wiring
Single outdoor unit
R S T N
Switch
Fuse
L
N
Communication Line
(2 Wires Cable)
Power Line
(4 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
In case of Heat
Recovery System
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Outdoor Unit]
[Indoor Units]
Pull Box
(Installer option) Pull Box
(Installer option) Pull Box
(Installer option) Pull Box
(Installer option)
HR unit
Outdoor
Power supply
(3 Ø 4wires)
Indoor
Power supply
(1
Ø
2wires)
(Main Switch)
Frequency
Voltage range(V)
Outdoor Indoor
60 Hz 380 V 220 V
50 Hz 380-415 V 220-240 V
Point for attention regarding quality of the
public electric power supply
This equipment complies with respectively:
- EN/IEC 61000-3-11 (1) provided that the system impedance Zsys is
less than or equal to Zmax and
- EN/IEC 61000-3-12 (2) provided that the short-circuit power Ssc is
greater than or equal to the minimum Ssc alue at the interface point
between the user's supply and the public system. It is the
responsibility of the installer or user of the equipment to ensure, by
consultation with the distribution network operator if necessary, that
the equipment is connected only to a supply with respectively:
- Zsys less than or equal to Zmax and
- Ssc greater than or equal to the minimum Ssc value.
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.