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Pre-Commissioning
Due to our policy of continuous product innovation, some specifications may change without notification.
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During the following procedure,
NEVER PUSH the ON / OFF (Enable operation) Button on the zone controller.
For Indoor Units That ARE NOT Being Controlled as a Group
1. Verify the zone controller wiring / cable is connected properly to the indoor unit PCB. For more information on the different connections in
LG indoor units, see the Electrical System Installation Section in this manual.
2. Using the controller, go to the setup function 02 (icons are different for each controller. Refer to the controller user’s manual for more
information.)
3. Type in the Hex Central Control address that has been designated to the unit.
4. Repeat Steps 1 through 3 for each indoor unit in the building.
For Indoor Units That ARE Being Controlled as a Group
For the Master Indoor Unit in a Group Setting
1. Identify which unit will be the Master indoor unit and which indoor units are going to be the Slave units.
2. Go to the Master indoor unit and access the PCB.
3. Verify the group control cable / group control wiring is installed into CN-REMO or the SIG - 12V - GND (Comm.) terminal on the Master
indoor unit PCB. If it is not, install now.
4. Detach group control cable / wiring.
5. Attach the zone controller to the Master indoor unit.
6. Using the controller, go to the setup function 02 (icons are different for each controller. Refer to the controller user’s manual for more
information.) Type in the Central Control address designated for the master indoor unit.
7. Disable power to the Master indoor unit.
Do not restore power to the Master indoor unit at this time. It will be restored later.
8. If the zone controller and associated communications cable has already been permanently mounted in place, reattach cable / wiring and
obtain a loose zone controller with a communications cable to continue programming the Slave indoor units (see procedure below).
Central Control
PRE-COMMISSIONING
For the Slave Indoor Unit(s) in a Group Setting
For grouped control indoor units, using DIP Switch No. 3 to set slave units automatically sets these units to Central Control address “FF. If
the application calls for central control addresses to all slave units, follow the procedure below.
1. Go to the first Slave indoor unit and disconnect the cable / wiring from CN-REMO or the SIG - 12V - GND (Comm.) terminal.
2. Attach the zone controller communications cable into the Slave indoor unit.
Do not push the ON / OFF button or enable indoor unit
operation.
3. Using the controller, go to the setup function 02 (icons are different for each controller. Refer to the controller user’s manual for more
information.) Type in the Hex address assigned to the unit.
4. Change DIP Switch No. 3 on the Slave indoor unit PCB to the “ON” position.
5. Disable power to the Slave indoor unit using the disconnect switch. Wait one (1) minute.
6. While power is off, detach the zone controller cable.
7. Attach the group control cable / wiring to the Slave indoor unit.
8. Restore power to that Slave indoor unit, and go to the next Slave indoor unit.
9. Repeat Steps 1 to 8 for each Slave indoor unit.
10. After all Slave indoor unit have addresses assigned, go back to the Master indoor unit and restore power.
