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Safety guidelines for installing the air conditioner unit and its components.
Safety guidelines for operating the air conditioner to prevent hazards.
Explanation of symbols used throughout the service manual for clarity and warnings.
Specifications for the width, height, and depth of the indoor unit.
Specifications for the width, height, and depth of the outdoor unit for various models.
Guidelines for choosing location, rooftop installation, and piping length.
Instructions for mounting the installation plate, drilling holes, and connecting the drain hose.
Steps for flaring, connecting indoor/outdoor piping, and installing the indoor unit.
Instructions for connecting the electrical cable to the indoor unit's control board.
Specifications for power cords used for connecting the unit to the power source.
Steps to connect the electrical cable to the outdoor unit's control board and wiring precautions.
Procedure to verify proper drainage of condensate from the indoor unit.
Instructions on forming and securing refrigerant piping for optimal performance and drainage.
Explanation of why air purging is necessary and its effects on the refrigerant system.
Steps to perform a leak test on the refrigerant circuit using nitrogen gas and soap water.
Procedure for evacuating the refrigerant system using a vacuum pump to remove air and moisture.
Ensuring the outdoor unit is securely anchored and stable before operation.
How to check system refrigerant charge and air temperature differences.
Steps to collect refrigerant in the outdoor unit for relocation or servicing.
Explanation of the operation indicators and their meaning for different models.
How the unit operates in cooling and dehumidification modes.
How the unit operates in heating mode and its defrost control logic.
Adjusting fan speed, sleep timer, Chaos Wind, Jet Cool, and Forced Operation.
Information on Test Operation, Auto Restart, frost protection, and buzzer sounds.
Explanation of indicators for heating mode operation and defrost.
Explanation of indicators for cooling mode operation and compressor status.
How to interpret error codes and check for system faults using the indoor body operation LED.
Detailed explanation of each button on the remote control and its function.
Step-by-step guide to remove the front grille from the indoor unit chassis.
Procedure for safely accessing the control box before disassembly.
Instructions for removing the control box from the indoor unit chassis.
Steps to unhook and remove the discharge grille from the indoor unit.
Procedure for removing the evaporator from the indoor unit, noting caution labels.
Steps to remove the motor cover from the indoor unit assembly.
Instructions for removing the cross-flow fan and separating it from the fan motor.
Schematic diagram of the indoor unit's electric control device, including components and connections.
Wiring diagrams for indoor units, covering Cooling only and Heat Pump models.
Wiring diagrams for outdoor units, for Cooling only and Heat Pump models.
Top and bottom view of the Main PWB showing component locations.
Layout of components on the display assembly for different models.
Refrigeration cycle diagrams, valve operations, and cycle analysis for troubleshooting.
Procedures for pumping down, balancing, evacuation, and charging refrigerant.
Diagnosing issues with electronic parts, remote control, fans, louvers, and heating.
Exploded view diagrams of outdoor unit components for 7k, 9k, and 12k Btu/h series.
Exploded view diagrams of outdoor unit components for 18k and 24k series.
Safety guidelines for installing the air conditioner unit and its components.
Safety guidelines for operating the air conditioner to prevent hazards.
Explanation of symbols used throughout the service manual for clarity and warnings.
Specifications for the width, height, and depth of the indoor unit.
Specifications for the width, height, and depth of the outdoor unit for various models.
Guidelines for choosing location, rooftop installation, and piping length.
Instructions for mounting the installation plate, drilling holes, and connecting the drain hose.
Steps for flaring, connecting indoor/outdoor piping, and installing the indoor unit.
Instructions for connecting the electrical cable to the indoor unit's control board.
Specifications for power cords used for connecting the unit to the power source.
Steps to connect the electrical cable to the outdoor unit's control board and wiring precautions.
Procedure to verify proper drainage of condensate from the indoor unit.
Instructions on forming and securing refrigerant piping for optimal performance and drainage.
Explanation of why air purging is necessary and its effects on the refrigerant system.
Steps to perform a leak test on the refrigerant circuit using nitrogen gas and soap water.
Procedure for evacuating the refrigerant system using a vacuum pump to remove air and moisture.
Ensuring the outdoor unit is securely anchored and stable before operation.
How to check system refrigerant charge and air temperature differences.
Steps to collect refrigerant in the outdoor unit for relocation or servicing.
Explanation of the operation indicators and their meaning for different models.
How the unit operates in cooling and dehumidification modes.
How the unit operates in heating mode and its defrost control logic.
Adjusting fan speed, sleep timer, Chaos Wind, Jet Cool, and Forced Operation.
Information on Test Operation, Auto Restart, frost protection, and buzzer sounds.
Explanation of indicators for heating mode operation and defrost.
Explanation of indicators for cooling mode operation and compressor status.
How to interpret error codes and check for system faults using the indoor body operation LED.
Detailed explanation of each button on the remote control and its function.
Step-by-step guide to remove the front grille from the indoor unit chassis.
Procedure for safely accessing the control box before disassembly.
Instructions for removing the control box from the indoor unit chassis.
Steps to unhook and remove the discharge grille from the indoor unit.
Procedure for removing the evaporator from the indoor unit, noting caution labels.
Steps to remove the motor cover from the indoor unit assembly.
Instructions for removing the cross-flow fan and separating it from the fan motor.
Schematic diagram of the indoor unit's electric control device, including components and connections.
Wiring diagrams for indoor units, covering Cooling only and Heat Pump models.
Wiring diagrams for outdoor units, for Cooling only and Heat Pump models.
Top and bottom view of the Main PWB showing component locations.
Layout of components on the display assembly for different models.
Refrigeration cycle diagrams, valve operations, and cycle analysis for troubleshooting.
Procedures for pumping down, balancing, evacuation, and charging refrigerant.
Diagnosing issues with electronic parts, remote control, fans, louvers, and heating.
Exploded view diagrams of outdoor unit components for 7k, 9k, and 12k Btu/h series.
Exploded view diagrams of outdoor unit components for 18k and 24k series.
General| Brand | LG |
|---|---|
| Model | LS-H1264DM0 |
| Category | Air Conditioner |
| Language | English |
