Outdoor Unit Electrical Connections - LG Art Cool Premier LA120HYV1 Installation Manual

ELECTRICAL WIRING

Outdoor Unit Electrical Connections

Connecting Outdoor Unit Electrical Wiring
The general guidelines for connecting electrical and communication cables to the outdoor unit are the same for each of the Single Zone Wall
Mount units. However, the actual connections on the terminal block will differ. See each illustration for the Single Zone unit model that you
are installing for correct wiring of each terminal block.
WARNING
• Be sure that main power to the unit is off before proceeding with
these steps. Follow all safety and warning information outlined at the
beginning of this manual. Failure to do so, may cause bodily injury.
• Be sure that a circuit breaker or some other emergency power cutoff
device is in place before any power wiring is done to the system.
Failure to do so, may cause bodily injury or death.
• Never touch any power lines or live cables before all power is
removed from the system. To do so may cause bodily injury or death.
Procedure
Refer to Figure 66 below for an example of how a circuit breaker
should be wired through to the Single Zone system.
Figure 66: Circuit Breaker
Main Power Source
Air
Conditioner
WARNING
• Be sure there is no power going through the Single Zone system be-
fore connecting wiring as it may result in electric shock, physical injury,
or death.
• Familiarize yourself with the location of the circuit breaker and be
sure that all power is removed from the Single Zone unit as it may
result in electric shock, physical injury, or death.
Figure 67: 9k/12k ODU Cover Removal
Bracket for
Main Power Cables
50
Circuit Breaker
Use a circuit breaker
or time delay fuse
Terminal Block
Cover
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1. Using a phillips head screwdriver, remove the conduit panel cover
from the outside unit. Refer to Figure 67 or Figure 68.
2. Before proceeding, inspect all wiring inside the casing to be sure
they are secure and have not come loose during transportation
and installation of the outdoor unit.
• Loose wires can cause the wiring to burn out quickly.
• Inspect wires for any damage or cracks (manufacturing defects).
3. Confirm that electrical power supply capacity is sufficient to run
the unit. See specifications sheets at the beginning of this instal-
lation manual for details on power.
4. Confirm the wiring is the right gauge size to meet local code.
5. Using a screwdriver, connect the wires as shown in Figure 69 for
9k/12k units or Figure 70 for 18k/24k units.
• Each wire should be securely attached to the terminal block.
• Bundle the cabling by using a cable restrainer.
• Pay attention to the location/connection of the green/yellow
grounding cable. In some models the connection may be located to
the side of the terminal block.
• Maintain a minimum of .2" of wire length from terminal block to
cable bundle.
Figure 68: 18k/24k ODU Cover Removal
Terminal Block
Terminal
Block Cover
Tubing
Cover