LG LV181HV4 Installation Manual page 53

Connecting Outdoor Unit Wiring
• Verify that main power is completely off and that no power is going through the Single Zone system before proceeding with these steps. Follow
all safety and warning information outlined at the beginning of this manual. Failure to do so may cause electric shock, bodily injury and / or
death.
• Per code, install a main indoor breaker, and an outdoor service disconnect that interrupts all power sources simultaneously. There is risk of
fire, electric shock, explosion, physical injury or death.
• Verify that the 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 electric shock, bodily injury and / 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.
1. Remove the front panel and / or control cover from the outdoor unit.
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.
3. Confirm that electrical power supply capacity will be sufficient to run the unit.
See specifications sheets at the beginning of this installation manual for
details on power.
4. Confirm that the right gauge is being used for wiring to proceed.
5. Using a JIS screwdriver, connect all wires as shown at right.
• Each wire must be individually and securely attached to each terminal.
• Secure the cable with the cable tie.
• Pay attention to the location/connection of the green/yellow ground cable.
• Maintain a minimum of 1/4 inches of wire length from terminal block
to cable bundle.
6. When finished, reattach the control cover and front panel to the out-
door unit with the screws.
ELECTRICAL SYSTEM INSTALLATION
Due to our policy of continuous product innovation, some specifications may change without notification.
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Outdoor Unit Electrical Connections
Figure 74: Circuit Breaker.
Main Power Source
Air
Conditioner
Figure 75: Outdoor Unit Electrical Connections.
Insulation
When connecting the power wiring /
communication cables, make sure
the rubber bushing is properly inserted
in the access holes after removing the
insulation.
Circuit Breaker
Use a circuit breaker
or time delay fuse
Main
Terminal
Block
Clamps
53