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General| Brand | LG |
|---|---|
| Model | LAU126HNP |
| Category | Air Conditioner |
| Language | English |
Definitions of warning symbols and general safety instructions for user protection.
Precautions for safe unpacking, installation stand integrity, and environmental factors.
Ensuring electrical safety by using dedicated outlets, avoiding wet hands, and keeping appliances away.
Safety guidelines for product handling during operation, cleaning, maintenance, and storage.
Essential safety checks for installation, including refrigerant leakage, drain hose, and leveling.
Safety advice on filter maintenance, safe ladder use, and proper battery replacement in remotes.
Explanation of manual symbols and detailed dimensions for the indoor and outdoor units.
Covers capacity, power, airflow, moisture, sound, refrigerant, compressor, fan, and piping specs.
Information on unit weight, available functions like Auto Clean, and control features.
Specifications for additional models, detailing capacity, power, and operational features.
List and diagrams of required installation parts and overview of essential tools for installation.
Diagram showing recommended placement, clearances, and installation flow for indoor/outdoor units.
Procedures to confirm the refrigerant type (R-410A) and important safety notices.
Recommendations for optimal indoor/outdoor unit placement, including rooftop considerations.
Guidelines for piping length, elevation, and additional refrigerant charge based on capacity.
Steps for opening panel, removing covers, and connecting drain hose.
Steps for mounting indoor unit and drilling wall holes for piping.
Step-by-step guide for cutting pipes, removing burrs, and performing flaring work correctly.
Routing indoor tubing and drain hose, and securing them with tape, ensuring proper drain placement.
Tightening flare nuts, wrapping piping with insulation material, and securing with tape.
Good and bad case examples for right piping to prevent damage to the tubing.
Steps for connecting piping to the outdoor unit, including applying refrigerant oil and tightening flare nuts.
Steps for connecting cables, power/low voltage lines, and wiring diagrams.
Detailed cable connection example and techniques for wiring to terminals.
Final wiring confirmation, safety checks for power source, capacity, and disconnection means.
Procedure to check drainage and guidelines for proper drain piping.
Steps for wrapping piping with insulation and securing it, with cases for below/above outdoor unit installation.
Explanation of purging purpose and steps using a vacuum pump, including leak testing.
Detailed procedure for evacuating the system and final steps to complete purging.
Information on adjusting refrigerant charge based on line set length and important charging precautions.
Instructions for preparing the remote controller by inserting batteries and reattaching the cover.
Guidance on anchoring the outdoor unit securely to the mounting base, considering environmental factors.
Steps to check system refrigerant charge and air temperature difference after 15-20 minutes of operation.
Procedure for pump down, collecting refrigerant into the outdoor unit, and safety precautions.
Overview of indoor unit operations: ON/OFF, temperature control, fan speed, and indication lamps.
Details on Dehumidification, Sleep Mode, Auto Air Control, Chaos Swing, and heating controls.
Explanation of time delay safety controls, Chaos Swing, and frost protection mechanisms.
Procedure and logic for auto operation, including cooling, dehumidification, and heating details.
Details on Forced Operation, Auto Restart function, and display/diagnosis functions.
Diagram and explanation of remote control buttons, including start/stop, mode selection, and fan speed.
WARNING: Disconnect power before disassembling. Steps to remove grille and control box.
Procedures for removing the evaporator, turbo fan, and motor from the indoor unit chassis.
Circuit diagrams for the indoor and outdoor units, including PWB and display assemblies.
Wiring diagrams illustrating connections for the indoor and outdoor units.
Diagrams of refrigeration cycles and tables for piping length, elevation, and refrigerant charge.
Procedures for 3-way valve pumping down, re-air purging, balancing refrigerant, and gas charging.
Procedure for complete evacuation and methods for additional gas charging based on pressure.
Analysis of cycle parts issues based on temperature difference, operating current, and pressure.
Troubleshooting flow for product not operating, checking power, connections, and PCB components.
Troubleshooting for remote controller failures and indoor fan operation problems.
Troubleshooting for compressor/fan issues, vertical louver, and communication errors.
Table detailing phenomena for indoor and outdoor unit connector errors, including indicators.
Table showing DC voltages at various connectors under different indoor fan speed settings.
Exploded view diagram of the indoor unit, showing all parts and their reference numbers.
Exploded view diagrams of the outdoor unit for Cooling/Only and Heat Pump series.
