LG ARUN40LS2A - Page 22

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ENGLISH
3 4 34
Between Indoor and Outdoor unit (U3 Chassis, 2 Fan Model)
IDUSODU
Outdoor unit
DRY1 DRY2 GND INTERNET
BA
12V
BA BA
34
3 4 34
The GND terminal is a '–' terminal for the central controller, not Ground Line
Between Indoor and Outdoor unit
(U4 Chassis, 1 Fan Model)
34
Indoor unit Dry Contact
IDO IDU DRY1 DRY2 GND
Between Indoor and Outdoor unit (U3 Chassis, 2Fan Model)
IDUSODU DRY1 DRY2 GND INTERNET
BA
12V
BA BA
34 34 34
ARUN(V)40LS2*, ARUN(V)50LS2*, ARUN(V)60LS2*
3 Phase 4 Wires
Power supply
60Hz 380V
Power supply
1 Phase 60Hz
220V
Power supply switch
(Switch fuse : ELCB)
Power supply switch
(Switch fuse)
(Main Switch)
Pull Box(Installer Option)
3 Phase 4 Wires Power line(R, S, T, N)
Single Phase of power supply line(L, N)
Communication line (3 line): Wired remote control
Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit
3 Phase 4 Wires
Power supply
60Hz 380V
Power supply
1 Phase 60Hz
220V
Power supply switch
(Switch fuse : ELCB)
Power supply switch
(Switch fuse)
(Main Switch)
Pull Box(Installer Option)
3 Phase 4 Wires Power line(R, S, T, N)
Single Phase of power supply line(L, N)
Communication line (3 line): Wired remote control
Communication line (2 shield line):
Between Indoor Unit and 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, mo-
mentary 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.
!
WARNING
• Main PCB power should be reset in order to recognize the changed
function after handling the DIP switch for configuration of additional
functions.
• Main PCB power should be reset after resetting the DIP switch for
cancellation of additional function
• Please configure DIP switch properly. Otherwise, It can overstrain
product during operation.
!
3Ø, 60Hz
u Example Connection of Communication Cable
[BUS type] [STAR type]
- Connection of communication
cable must be installed like
below figure between indoor
unit to outdoor unit.
- Abnormal operation can be
caused by communication de-
fect, when connection of com-
munication cable is installed like
below figure(STAR type).
Location of DIP Switch (U3 Chassis, 2 Fan
Model)
Main PCB
1 When outdoor unit is powered on after configuring the DIP switch,
proper input of configuration value can be verified through 7-Seg-
ment.
2 This function is shown only for 2 seconds after turning on the
power.
Verification of outdoor unit configuration
- After power is turned on, number are shown on
7-Segment consecutively
- These numbers show the configuration status
In case of 3Ø, 5HP model
1234567
ON
<Initial shipping condition of DIP Switch>
1234567
ON
SW01B SW02B
SW01B
(DIP S/W)
SW02B
(DIP S/W)
7 - Segment
SW02V
Auto addressing
SW01V
Data confirm
Model Code
Seqence NO. Content
1 124 Model code, 1~255
2 5 Total capacity (HP)
3 2 2 : heatpump, No display : cooling only
4 25 Normal
5 129 Model type, 1~255
Phase Capacity(HP) Model code Model type
1Ø
5 121
286 122
3Ø
4 123
5 124
29
6 125