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General| Brand | LG |
|---|---|
| Model | AS-H0764DM0 |
| Category | Air Conditioner |
| Language | English |
Safety guidelines for the installation of the air conditioner unit, covering precautions.
Safety instructions for the operation of the air conditioner, including handling and placement.
Explanation of symbols used throughout the service manual to denote warnings and notices.
Specifications and diagrams detailing the width, height, and depth of the indoor unit.
Specifications and diagrams detailing the dimensions of the outdoor unit, including various length measurements.
Guidelines for choosing an optimal location for indoor and outdoor units to ensure efficient operation.
Specific advice for installing the outdoor unit on a roof structure, including leveling and anchoring.
Details on maximum allowed piping length and elevation differences for optimal system performance.
Instructions for mounting the installation plate and drilling holes in the wall for unit installation.
Procedures for connecting the drain hose to ensure proper water drainage from the indoor unit.
Detailed steps for performing flare work on pipes and connecting them to the indoor and outdoor units.
Guidance on connecting the refrigerant pipes to the outdoor unit, including torque specifications.
Steps for connecting the electrical cable to the indoor unit's control board, including wiring diagrams.
Instructions for connecting the electrical cable to the outdoor unit's control board and power source.
Procedure to verify correct drainage from the indoor unit by pouring water onto the evaporator.
Recommendations for routing the drain hose to ensure proper downward flow and prevent water leakage.
Steps for insulating connecting pipes and securing them with vinyl tape for proper installation.
Explanation of why air and moisture must be removed from the refrigerant system.
Preparation and steps for leak testing and evacuating the system using a vacuum pump.
Method using soap water to check for leaks at pipe connections after purging.
Detailed steps for evacuating the refrigerant system using a vacuum pump to achieve a deep vacuum.
Instructions for securely anchoring the outdoor unit to its mounting base or wall.
Steps to check system refrigerant charge and measure air intake/discharge temperatures.
Method for collecting refrigerant in the outdoor unit when relocating or servicing the unit.
Description of indicators and basic functions for C/O and H/P models, including operation and timer indicators.
Specific conditions and fan speed settings for cooling mode operation, including temperature thresholds.
Explanation of dehumidification mode operation and how intake air temperature affects setting.
Conditions for compressor and fan operation in heating mode, including pipe temperature influences.
How the unit automatically defrosts the outdoor evaporator pipe to prevent freezing during heating.
How to select fan speed (high, medium, low, chaos) using the remote control.
Setting and behavior of the sleep timer, including temperature adjustments in cooling mode.
Operation of the Chaos Natural Wind mode, varying airflow speed randomly for comfort.
Activating Jet Cool mode for rapid cooling with super-high fan speed for 30 minutes.
Activating Jet Cool mode for rapid cooling with super-high fan speed for 30 minutes.
How to operate the unit using the power button when the remote control is unavailable.
Details of the test operation mode, its duration, and how remote signals affect it.
Functionality of auto restart after a power failure, returning to previous operating conditions.
Measures taken to protect the evaporator pipe from frosting during cooling operation.
Indications of buzzer sounds for operation and pause key inputs.
Explanation of the operation indicators and deicer indicator for heating and cooling models.
How the unit performs self-diagnosis, error codes, and corresponding SVC check points.
Steps to remove the front grille from the indoor unit's chassis for access to internal components.
Procedure for removing the control box from the indoor unit chassis.
Steps to unhook and remove the discharge grille from the indoor unit.
Instructions for removing the evaporator from the indoor unit, noting screw locations.
Procedure for removing the motor cover from the indoor unit.
Steps for removing the cross-flow fan and fan motor from the indoor unit.
Detailed schematic of the electric control system, focusing on the Heat Pump Model (LED TYPE).
Wiring diagrams for indoor units, covering Cooling only and Heat pump models.
Wiring diagrams for outdoor units, detailing connections for Cooling only and Heat pump models.
Diagrams showing the top and bottom views of the main printed circuit board assembly.
Illustrations of the display assembly, showing component layouts for different model numbers.
Schematic representation of refrigerant flow for cooling only and cooling & heating models.
Table detailing the correct shaft and service port positions for 2-way and 3-way valves for various works.
Detailed steps for pumping down refrigerant, including valve operations and gauge readings.
Procedure for balancing refrigerant levels and checking for gas leakage using the 3-way valve.
Steps for performing evacuation to remove all refrigerant and moisture from the system.
Instructions for charging the system with refrigerant after evacuation, including safety precautions.
Guidance on recharging refrigerant based on operating suction pressure, using graphs and equations.
Analysis of common refrigeration cycle issues based on temperature difference and operating current.
Flowchart for diagnosing 'Product does not operate at all' issues, checking voltages and components.
Troubleshooting steps for when the product does not operate with the remote controller.
Diagnostic steps for when the compressor or outdoor fan fails to operate.
Troubleshooting guide for situations where the indoor fan does not operate.
Steps to diagnose why the vertical louver is not operating correctly.
Troubleshooting guide for diagnosing problems when the heating mode does not function.
Diagram showing all parts of the indoor unit disassembled, with part numbers indicated.
Diagram showing disassembled parts of the outdoor unit for 7k, 9k, and 12k Btu/h series.
Diagram showing disassembled parts of the outdoor unit for 18k and 24k series.
A comprehensive list of replacement parts for the indoor unit, including part numbers and location codes.
A comprehensive list of replacement parts for the outdoor unit, including part numbers and location codes.
