LG ART COOL LA090HSV5 Installation Manual page 54

ELECTRICAL SYSTEM INSTALLATION
Indoor Unit Electrical Connections
Connecting Indoor Unit Electrical Wiring for HSV3 Units
• Verify that main power to the unit is completely off before proceeding with these steps as there is a risk of electrical shock, bodily injury, and / or
death.
• Follow all safety and warning information outlined at the beginning and throughout this manual. Failure to do so may cause electrical shock, bodily
injury, and / or death.
• Follow all safety and warning information outlined at the beginning and throughout this manual. Failure to do so may cause unit failure.
• Connect the communication / connection (power) cable to the indoor unit by matching the terminals on the outdoor unit control board. Verify
the color of the wires at the outdoor unit, along with the terminal numbers, match those for the indoor unit.
• Images are representative; actual appearance may vary.
• Refer to the circuit diagram on the indoor unit bottom cover.
1. At the bottom panel of the indoor unit, unsnap the latches
which cover the phillips screw heads. Usually, there are
three (3) screws on the panel, however this may vary
depending on the indoor unit.
2. Using a phillips head screwdriver, remove the screws from
the bottom panel of the indoor unit and set aside.
3. Remove the bottom panel. Removal is necessary to gain
access to the terminal block which is situated at the bottom
of most indoor units.
• Note that the electrical/communications wiring is usually
routed through the back/bottom of the indoor unit through a
knockout panel.
4. Using a screwdriver, connect the wires as shown on the
next page.
• Each wire must be securely attached to the terminal block.
• Ground cable must be longer than the other wires.
• Secure the cable onto the control board using a cable tie.
• Use a conduit to protect the cable / refrigerant piping from the
indoor unit to the outdoor unit.
Figure 96: Remove (and Reattachment) Bottom Panel
54
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Figure 94: Latch over Screws on Bottom Panel, Indoor Unit
Figure 95: Remove Screws from Bottom Panel
Appearances may vary depending on Indoor Unit Model.