22
ENGLISH
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 distri-
bution 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.
(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.
Field Wiring
Single outdoor unit
R S T N
Switch
Fuse
L
N
Communication cable
(2 Wires Cable)
Power cable
(4 Wires Cable)
Communication cable
(
3
Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
[Outdoor Unit]
[Indoor Units]
Outdoor
Power supply
(
3
Ø 4wires)
Indoor
Power supply
(1
Ø
2wires)
(Main Switch)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Master
Outdoor Unit
SODU. B SODU. A
IDU. B
IDU. A
CEN. B
CEN. A
DRY1
DRY2
GND
12V
3
4
3
4
3
4
[Heat Pump]
Between Indoor and Master Outdoor unit
The GND terminal at the
main PCB is a ‘-’ terminal
for day contact, it is not
the point to make ground
connection.
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.
!
Frequency
Voltage range(V)
Outdoor
Indoor
60Hz
380V
220V
50Hz
380-415V 220-240V
Series outdoor units
When the power source is connected
In series between the units.
R S T N
Switch
Fuse
L
N
Communication cable
(2 Wires Cable)
Power cable
(4 Wires Cable)
Communication cable
(
3
Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
Power cable
(2 Wires Cable)
[Master]
[Indoor Units]
Outdoor
Power supply
(
3
Ø 4wires)
Indoor
Power supply
(1Ø 2wires)
(Main Switch)
[Slave1]
[Slave2]
[Slave
3
]
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
WARNING
When the total capacity is over than as follow, the power source
do not use in series between the units.
The First terminal block could be burnt out. (Heat Pump : 62 Hp)
!
Frequency
Voltage range(V)
Outdoor
Indoor
60Hz
380V
220V
50Hz
380-415V 220-240V
Standard combination of outdoor units
Zmax (
Ω
)
Minimum Ssc Value (kVA)
ARUN080LTE4
-
3921
ARUN100LTE4
-
6415
ARUN120LTE4
-
6415
ARUN140LTE4
-
4964
ARUN160LTE4
-
4964
ARUN180LTE4
-
6994
ARUN200LTE4
-
6994