Indoor Unit Auto Addressing - LG MULTI V S ARUN038GSS4 Installation Manual

WIRING

Indoor Unit Auto Addressing

Indoor Unit Auto Addressing
Disconnects should only be operated by a properly licensed electrician at this time. Never look at a disconnect switch when closing. Turn
Do not change any DIP switch settings during the pre-commissioning process. All DIP switches should be left in the OFF position.
Initiate the Auto Addressing Procedure
• If the Auto Address Procedure has never been successfully completed for the system, the compressor(s) will not start when power is
applied to the unit.
• Auto addressing is only possible on the main PCB of the outdoor unit.
1. Verify all that all indoor units connected to the system have power to the PCB board AND all zone controller system start buttons are OFF.
2. Remove the maintenance access panel and unit control box cover from the outdoor unit. Place panels and screws in a secure area.
3. Verify that the communications cable between the indoor units and the outdoor unit is terminated at the outdoor unit terminals IDU(A) and
IDU (B).
4. Verify the shield on the communications cable is grounded at the outdoor unit.
5. Check if all DIP switches are set to OFF.
6. Cycle power on the outdoor unit and wait for three (3) minutes. Leave disconnect in the "ON" position.
7. Check the outdoor unit(s) current configuration code(s). Observe the unit setup codes using the LED display found on the outdoor units
PCB. Each code will display for two (2) seconds.
8. Know how many indoor units are connected to the system.
process should take from two (2) to seven (7) minutes.
9. Press and hold the red SW01C button for about five (5) seconds. Release when
"88" appears on the LED. After two (2) to seven (7) minutes, the display will flash a
number for about ten (10) to thirty (30) seconds indicating how many indoor units the
system successfully communicated with.
10. This number should match the known installed number of indoor units if the auto
unit.
11. Upon completion of the auto addressing routine, the display will be blank and the
system will be in standby waiting for another command.
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Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 64: Auto Address Button Location.
DIP-Switch SW01 LED
SW04C (
SW03C (
SW02C (
SW01C (