Outdoor Unit Electrical Connections - LG LS090HSV4 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 Single Zone High Effi-
ciency Wall Mount system, however, the actual connections on the terminal block will differ. See each illustration for the model that you are
installing for correct wiring of each terminal block.
• Be sure that main power to the unit is completely off before proceeding with these steps. Follow all safety and warning information out-
lined 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 cutoff to the system. To do so, may cause bodily injury or death.
Procedure
Refer to Figure 63 at right for an example of how a circuit breaker
should be wired through to the Single Zone system.
• Be sure there is no power going through the Single Zone system
before proceeding with these connections as it may result in elec-
tric shock.
• Familiarize yourself with the location of the circuit breaker and be
sure that all power is cut to the Single Zone unit as it may result in
electric shock.
1. Using a phillips head screwdriver, remove the conduit panel cover from the outside 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 (manufacturing defects).
3. Confirm that electrical power supply capacity is sufficient to run the unit. See specifications sheets at the beginning of this installation
manual for details on power.
4. Confirm that you are using the right gauge size for wiring to proceed.
5. Using a screwdriver, connect the wires as shown in Figures 64 and 65.
• 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; as in some models the connection may be located to the side
of the actual terminal block.
• Maintain a minimum of .2" of wire length from terminal block to cable bundle.
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Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 63: Circuit Breaker
Main Power Source
Air
Conditioner
Circuit Breaker
Use a circuit breaker
or time delay fuse