Pre-Commissioning Start / Outdoor Unit Dip Switch Settings - LG ARUM072BTE5 Installation Manual

PRE-COMMISSIONING

Pre-commissioning Start / Outdoor Unit DIP Switch Settings

Pre-Commissioning Process
After successfully completing the leak / pressure check and triple evacuation procedures, begin the pre-commissioning process. The
pre-commissioning process will prepare the system for commissioning in several steps:
1. Verify facility power is correct.
2. Power up the system.
3. Verify power at the system is correct.
Prepare the Electrical System
Multi V outdoor units require either 208-230V / 60Hz / 3Ø or 460V / 60Hz / 3Ø power. Verify that the power and phase requirements are cor-
rect and all three legs are present. Make sure that the power imbalance ratio between phases is no greater than 2%. If the electrical power is
dirty, the unit may shutdown on a compressor safety and/or the lifespan will be reduced.
Multi V outdoor units are inverter driven.
improvement effect, and may cause the capacitor to generate an abnormal amount of heat.
1. Verify correct, clean, specified power is at the line side of each system component's disconnect.
2. Note if the green LED light on the component PCB board is illuminated.
3. If an air cleaner is installed on a high static ducted model indoor unit, verify power has been provided to the air cleaner controller. Verify
by observing the LED in the center of the disconnect plate is illuminated.
4. If a zone controller (Remote Unit controller on the Hydro Kit) is connected to the component, verify the LCD screen displays current oper-
ational characteristics.
Setting Outdoor Units to Heat Pump or Heat Recovery Systems
Outdoor units are factory set to heat recovery operation—all switches on DIP Switch bank SW01 are set to OFF. All outdoor unit(s) (master
and slave[s]) MUST be manually set to a heat pump system. To change the factory set heat recovery system to a heat pump system:
• Flip switch No. 4 on the DIP-SW01 bank to ON. Display will show "HR" (heat recovery).
• Push the ►(SW03C) button to change "HR" (heat recovery) to "HP" (heat pump), then press the confirm (SW01C) button.
• Flip switch No. 4 on the DIP-SW01 bank to OFF, and push the reset (SW01D) button to restart the system. If No. 4 on the DIP-SW01 bank
is switched to ON again, "HR" (heat recovery) or "HP" (heat pump) can be verified by reading the display later.
Heat Recovery System DIP Switch Setting on Outdoor Units (Factory
Set).
ON
OFF
1
1
Setting Outdoor Units in Dual / Triple Frame Systems
On the DIP-SW01 bank (Main PCB), one (1) outdoor unit must be set on DIP-SW01 bank to the Master unit and the other units set to the
Slave(s) unit(s) or errors will be generated.
• For the DIP-SW01 bank on the master unit,
all DIP switches must be set to off.
Master, Slave1, and Slave2 DIP Switch Settings.
Master Outdoor Unit
ON
OFF
1 2 3
1 2 3
118
4. Run self diagnostics check.
5. Assign a system address to indoor units.
6. Assign addresses to heat recovery units
Do not install a phase-leading capacitor. If one is included, it will deteriorate the power factor
2 3 4 5 6 7
2 3 4 5 6 7
• For the DIP-SW01 bank on the slave 1
unit, set only DIP switch 6 to ON.
Slave1 Outdoor Unit
ON
OFF
4 5 6 7
1 2
4 5 6 7
1 2
Due to our policy of continuous product innovation, some specifications may change without notification.
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(heat recovery systems only).
7. Assign each central control device an
address.
Heat Pump System DIP Switch Setting on Outdoor Units
(Manually Set).
ON
OFF
1
1
• For the DIP-SW01 bank on the slave 2
ON
OFF
3 4 5 6 7
3 4 5 6 7
2 3 4 5 6
2 3 4 5 6
unit, set only DIP switch 7 to ON.
Slave2 Outdoor Unit
1 2 3 4 5 6
1 2 3 4 5 6
7
7
7
7