Electrical Connections; Electrical Connections - LG LA090HSV4 Engineering Manual

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Engineering manual (56 pages)

Installation manual (56 pages)

Table Of Contents

Table of Contents

Outdoor Electrical

Connection

1. Remove the control cover from the unit by loosen-

ing the fastening screw (Figures 29 and 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 ter-

minal block (see Figure 32 and Figure 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 posi-

tion with the fastening screw.

•

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

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.

• 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 32: Terminal Block Wiring Diagram LSU090HSV4, LSU120HSV4.

208/230 VAC

Figure 29: LSU090HSV4/LSU120HSV4

Outdoor Unit Electrical Connection.

Terminal Block

Over 0.2"

Tubing Cover