LG Art Cool Inverter Service Manual

The LG Art Cool Inverter is a premium air conditioning system featuring inverter technology for energy efficiency, stylish design with customizable panels, smart connectivity options, multi-directional airflow, and advanced climate control. This service manual covers installation procedures, maintenance guidelines, troubleshooting, technical specifications, and repair instructions for certified technicians.

Product Overview

Key components: Inverter compressor, indoor unit with artistic panel, outdoor unit, remote control, drain pipe, power cable, and communication wiring.

Installation Guidelines

Proper installation ensures optimal performance and longevity.

1. Select installation location: Minimum clearances as specified in manual.
2. Mount indoor unit: Secure bracket to wall, ensure level installation.
3. Install outdoor unit: Stable foundation with proper vibration isolation.
4. Connect refrigerant pipes: Brazing with nitrogen purge to prevent oxidation.
5. Electrical connections: Follow wiring diagram precisely.
6. Vacuum and charge: Proper evacuation and refrigerant charging.

WARNING! Only certified technicians should perform installation. Incorrect installation may void warranty.

Technical Specifications

• Cooling Capacity: 9,000 - 24,000 BTU/h (model dependent)
• Heating Capacity: 9,500 - 26,000 BTU/h (model dependent)
• Power Supply: 220-240V, 50/60Hz
• Refrigerant: R410A
• Noise Level: 19-38 dB (indoor), 49-56 dB (outdoor)
• Energy Rating: 5-star energy efficiency
• Operating Range: Cooling: -10°C to 46°C, Heating: -15°C to 24°C
• Dimensions: Varies by model (refer to specific model documentation)

Control Panel Operation

Access functions via remote control or indoor unit buttons.

Remote Functions: POWER, MODE (Cool/Heat/Dry/Fan/Auto), TEMPERATURE, FAN SPEED, SWING, TIMER, SLEEP, RESET.

Operation Modes: Cooling, Heating, Dehumidification, Fan Only, Auto. Smart Features: Wi-Fi connectivity, Voice control compatibility, Energy monitoring, Self-cleaning function, Plasma air purification.

Maintenance Procedures

Regular maintenance ensures optimal performance and extends unit lifespan.

1. Clean air filters: Remove and wash every 2 weeks during operation.
2. Check drain pipe: Ensure proper drainage and clear blockages.
3. Clean heat exchanger: Use soft brush to remove dust accumulation.
4. Inspect electrical connections: Tighten loose terminals.
5. Check refrigerant pressure: Verify within specified range.

Tip: Schedule professional maintenance annually for best performance.

Error Code Diagnostics

LED indicators display error codes for troubleshooting.

Refrigerant Handling

Proper refrigerant procedures for service and maintenance.

1. Recovery: Use approved recovery machine and cylinders.
2. Charging: Weigh refrigerant according to pipe length and model specifications.
3. Leak testing: Use electronic leak detector or bubble solution.
4. Pressure testing: Perform with dry nitrogen.

WARNING! R410A operates at higher pressures than R22. Use appropriate gauges and tools.

Electrical Components

Major electrical components and testing procedures.

• Compressor: 3-phase inverter type, check winding resistance
• Fan Motors: Indoor and outdoor DC motors
• Control PCB: Main board with inverter driver
• Sensors: Room temperature, pipe temperature, pressure sensors
• Capacitors: Run capacitors for compressor and fans
• Relays: Power and control relays

Safety Precautions

Essential safety measures for service technicians.

1. Disconnect power before servicing.
2. Use proper PPE: gloves, safety glasses, insulated tools.
3. Ensure proper grounding of all electrical components.
4. Follow refrigerant safety procedures.
5. Work in well-ventilated areas.

CAUTION! High voltage present. Capacitors may hold charge even when power is disconnected.

Warranty Information

Standard warranty: 1 year on entire unit, 5 years on compressor, 10 years on inverter PCB (registration required).

Warranty claims: Contact LG authorized service center with proof of purchase and installation certificate. Warranty void if: Unit installed by non-certified technician, Used for commercial purposes, Physical damage or improper maintenance.

Troubleshooting Guide

Reset Procedure: Disconnect power for 10 minutes, then reconnect.

Service Support: LG Customer Service: 1300-LG-HELP, www.lg.com/support