ENGLISH
Installation Manual
51
Electrical Wiring
u
Example Connection of Communication Cable
2 Outdoor Units
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 equip-
ment 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.
3 Phase 3 Wires Power line(L1, L2, L3)
Communication line (3 line): Wired remote control
Single Phase of power supply line(L(1), L(2))
Communication line (2 shield line):
Between Outdoor Unit and Outdoor Unit
Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit
Power supply switch
(Switch fuse : ELCB)
Power supply switch
(Switch)
Power supply switch
(Switch)
Slave
Master
Power supply switch
(Switch fuse : ELCB)
■
When the power source is supplied to
Each outdoor unit individually.
3 Phase 3 Wires
Power supply
60Hz 208/230V
Power supply
1 Phase 60Hz
208/230V
(Main Switch)
■
When the power source is supplied to
Each outdoor unit individually.
3 Phase 3 Wires
Power supply
60Hz 208/230V
Power supply
1 Phase 60Hz
208/230V
(Main Switch)
HR unit
HR unit
Pull box(installer option)
HR unit
HR unit
Pull box(installer option)
The GND terminal is a '–' terminal for the central controller, not ground line
HR unit
Between Indoor and Master Outdoor unit
Slave
Outdoor unit
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
A
12V Master
Outdoor unit
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
A
12V
IDU
SODU
DRY1 DRY2 GND
INTERNET
B
B
B
B
A
A
A
A
12V
Master
Outdoor unit
3(A)
4(B)
3(A)
4(B)
Содержание ARWB Series
Страница 88: ...88 Outside Unit ...
Страница 176: ...88 Unité extérieurieur ...