Initial Setup; Other Controls - LG Multi V5 Service Manual

OTHER CONTROLS

Initial Setup

Initial Setup
There are four (4) initial setup steps before operation can begin. All DIP switch settings must be completed before initial setup.
Step 1
Factory set value is displayed on the PCB seven segment display (SSD) for
twenty-four (24) seconds.
Step 2
Communication Check: If display follows all sequences as shown above, the communication between the Master and Slave outdoor units
is normal. If the SSD shows Error Code 104*, check the DIP switch settings and the communication cables between the Master and Slave
outdoor units.
Step 3
PCB Error Check: Error check will begin after forty (40) seconds.
Master / Slave unit
• All errors of all the units (including Slave) will be shown on the SSD.
• If communication between main PCB and inverter PCB isn't correct, Error Code 52* will be seen on the SSD.
• If communication between main PCB and fan PCB isn't normal, Error Code 105* will be seen on the SSD.
• If any errors are displayed, check corresponding wires / cables.
50
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Turn power on.
Code for the Master outdoor unit is
displayed for three (3) seconds.
Code for the Slave 1 outdoor unit is
displayed for three (3) seconds.
Code for the Slave 2 outdoor unit is
displayed for three (3) seconds.
Total system capacity (master and slave
units) is displayed for two (2) seconds.
System type is displayed (3 is default).
• Heat Pump = 2
• Heat Recovery = 3
Electrical requirements are displayed.
• 208-230V = 22
• 460V = 46
Model Type.
22
14
12
48
3
46
30