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28
ENGLISH
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)
[Master]
[Indoor Units]
Power supply
3 Phase 3 Wires
60Hz 208/230V
Power supply
1 Phase 60Hz
208/230V
(Main Switch)
[Slave1] [Slave2]
Switch Switch
ELCB ELCB ELCB
Pull box
(Installer option)
Pull box
(Installer option)
Pull box
(Installer option)
Power Line
(2 Wires Cable)
HR unit
ELCB
L(L1) N(L2)
RST RST RST
When the power source is supplied to Each outdoor unit individually.
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 cur-
rent 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
Master
Outdoor Unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
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
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
Slave1
Outdoor Unit
HR unit
Slave2
Outdoor Unit
AB
3(A) 4(B) 3(A) 4(B) 3(A) 4(B) 3(A) 4(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)
WARNING
• 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, momen-
tary blackout or the power goes on and off while the product is oper-
ating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor
and other parts.
!
460V
Example Connection of Communication Cable
1 Outdoor Unit-3Ø, 460V
WARNING
• 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, momen-
tary blackout or the power goes on and off while the product is oper-
ating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor
and other parts.
!
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
60Hz 460V
Power supply
1 Phase 60Hz
208/230V
(Main Switch)
Pull box
(Installer option)
Pull box
(Installer option)
Pull box
(Installer option)
HR unit
L(L1) N(L2)
RST
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
HR unit
AB
3(A) 4(B) 3(A) 4(B) 3(A) 4(B) 3(A) 4(B)
2 Outdoor Units-3Ø, 460V
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)
HR unit
Power supply
3 Phase 3 Wires
60Hz 460V
Power supply
1 Phase 60Hz
208/230V
Switch
ELCB
ELCB
L(L1) N(L2)
RST
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