Electrical Connections; Electrical Connections - LG Art Cool LA090HSV4 Engineering Manual

eleCTriCAl ConneCTionS

outdoor electrical
Connection
1. Remove the control cover from the unit by loosen-
ing the fastening screw (Figures 32 and 33).
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 ter-
minal block (see Figure 35 and Figure 36).
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 posi-
tion with the fastening screw.
• Separately wire the high and low voltage lines. There is a risk of electric shock,
physical 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
between 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 connection between the indoor and outdoor unit to avoid damage to the 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 35: Terminal Block Wiring Diagram LSU090HSV4, LSU120HSV4.
208/230 VAC
52 | reFrIGerant deSIGn
Figure 32: LSU090HSV4/LSU120HSV4
outdoor Unit Electrical Connection.
Terminal Block
Over 0.2"
Tubing Cover
Due to our policy of continuous product innovation, some specifications may change without notification.
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Figure 33: LSU180HSV4 outdoor Unit
Electrical Connection.
Connecting
Cable
Power
Supply
Cord
Conduit Panel
Figure 34: Circuit Breaker.
Main Power Source
Air
Conditioner
Figure 36: Terminal Block Wiring Diagram LSU180HSV4.
1(L1) 2(L2)
Terminal Block
Over 0.2"
Power Supply
Cord
Conduit Panel
Connecting
Cable
Terminal Cover
Circuit Breaker
Use a circuit breaker
or time delay fuse
1(L1) 2(L2) 3