LG ARUN50GS2A Quick Manual page 22

22
Between Indoor and Outdoor unit (U3 Chassis, 2 Fan Model)
SODU IDU INTERNET DRY1 DRY2 GND 12V
B A B A B A
3
Between Indoor and Outdoor unit
(U4 Chassis, 1 Fan Model)
Outdoor unit
Indoor unit Dry Contact
IDO IDU DRY1 DRY2 GND
3
The GND terminal is a '–' terminal for the central controller, not Ground Line
3Ø, 60Hz
ARUN(V)40LS2*, ARUN(V)50LS2*, ARUN(V)60LS2*
Power supply switch Power supply switch
(Switch fuse : ELCB) (Switch fuse : ELCB)
3 Phase 4 Wires 3 Phase 4 Wires
Power supply Power supply
60Hz 380V 60Hz 380V
(Main Switch) (Main Switch)
Power supply switch Power supply switch
(Switch fuse) (Switch fuse)
Power supply Power supply
1 Phase 60Hz 1 Phase 60Hz
220V 220V
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.
Between Indoor and Outdoor unit (U3 Chassis, 2Fan Model)
SODU IDU INTERNET DRY1 DRY2 GND 12V
B A B A B A
3
u Example Connection of Communication Cable
[BUS type]
- Connection of communication
cable must be installed like
below figure between indoor
unit to outdoor unit.
4 3 4 3
4 3 4 3
3 Phase 4 Wires Power line(R, S, T, N) 3 Phase 4 Wires Power line(R, S, T, N)
Single Phase of power supply line(L, N) Single Phase of power supply line(L, N)
Communication line (3 line): Wired remote control Communication line (3 line): Wired remote control
Communication line (2 shield line): Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit Between Indoor Unit and Outdoor Unit
Pull Box(Installer Option) Pull Box(Installer Option)
4 3 4 3
[STAR type]
- 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
4
7 - Segment
4
SW01B
ON
1
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
Seqence NO.
1 124
2 5
3 2
4 25
5 129
Model Code
4
Phase Capacity(HP)
1Ø
3Ø
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.
SW02V
Auto addressing
SW01V
Data confirm
SW02B
ON
2 3 4 5 6 7 1 2 3 4 5 6 7
<Initial shipping condition of DIP Switch>
Content
Model code, 1~255
Total capacity (HP)
2 : heatpump, No display : cooling only
Normal
Model type, 1~255
Model code
5 121
6 122
4 123
5 124
6 125
Model type
28
29