Multi V 5
5. Field Wiring
84
Outdoor Units
5.2 Heat Pump System
̰
Example Connection of Communication Cable
Single Outdoor Unit
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, 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.
The GND terminal at the main PCB is a ‘-’ terminal for day contact, it is
not the point to make ground connection.
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)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Outdoor Unit]
[Indoor Units]
(Main Switch)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
Outdoor
Power supply
(3Ø 4wires)
Indoor
Power supply
(1Ø 2wires)
Frequency
Voltage range(V)
Outdoor
Indoor
60Hz
380V
220V
50Hz
380-415V
220-240V
3
4
3
4
3
4
Between Indoor and Master Outdoor unit
Master
Outdoor Unit
SODU.B SODU.A
IDU.B IDU.A
CEN.B
CEN.A
DRY1
DRY2
GND
12V
Содержание ARUM080LTE5
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