Electrical Connections - LG LS090HSV4 Engineering Manual

elecTricAl connecTionS

outdoor electrical connection
1. Remove the control cover from the unit by loosening the fastening screw. Refer to
Figure 30.
2. Take off the caps on the conduit panel.
3. Connect both the power supply and low voltage lines to the corresponding terminals
on the terminal block. See Figures 31 to 33.
4. Be sure to ground the unit by following local codes.
5. Allow for enough length (add several inches) for each wiring.
6. Secure the cable with the cord clamp.
7. Secure conduit tubes with lock nuts.
8. Reattach the control cover to the original position with the fastening screw.
• Separately wire the high and low voltage lines. There is a risk of electric shock, physi-
cal injury, or death.
• Use heat-proof electrical wire capable of withstanding temperatures up to 167°F to
avoid wiring malfunction and electrical shock, which may cause physical injury or death.
• Ensure you connect the wire firmly. Loose wiring may cause unit malfunction, the
wires to burnout or the terminal to overheat and catch fire. There is a risk of electric
shock, physical injury or death.
• Use outdoor and waterproof connection cable rated up to 300V for the connection be-
tween the indoor and outdoor unit to avoid electrical shock, which may cause physical
injury or death.
• Separately wire the high and low voltage lines to avoid damage to unit.
• Use heat-proof electrical wire capable of withstanding temperatures up to 167°F
to avoid damage to unit.
• Always use a circuit breaker or time delay fuse when connecting electrical wiring
to the unit.
• Ensure you connect the wire firmly. Loose wiring may cause unit malfunction,
the wires to burnout or the terminal to overheat and catch fire. There is a risk of
equipment malfunction or property damage.
• Use outdoor and waterproof connection cable rated up to 300V for the connec-
tion between the indoor and outdoor unit to avoid damage to unit.
• Comply with local codes while running wire from the indoor unit to the outdoor unit.
• Do not allow wire to touch refrigerant tubing, the compressor or any moving parts
since it can lead to mechanical failure.
Figure 32: Terminal Block Wiring Diagram - LSU090HSV4,
LSU120HSV4.
208/230 VAC
50 | reFrIGerant deSIGn
Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 30: outdoor Unit Connection.
Terminal Block
Tubing Cover
Figure 31: Circuit Breaker.
Main Power Source
Air
Conditioner
Figure 33: Terminal Block Wiring Diagram - LSU180HSV4.
Over 0.2"
Connecting
Cable
Power
Supply
Cord
Conduit Panel
Circuit Breaker
Use a circuit breaker
or time delay fuse