This document is an Owner's Manual for LG Air Conditioners, specifically for Ceiling Concealed Duct models. It provides comprehensive information on safety, operation, maintenance, and troubleshooting for the appliance.
Function Description:
The LG Ceiling Concealed Duct air conditioner is designed to provide cooling and heating (depending on the model) for indoor spaces. It takes in air from the room through air intake vents, processes it to the desired temperature, and then circulates it back into the room through air outlet vents. The concealed duct design allows the unit to be hidden within the ceiling, providing a discreet aesthetic while delivering conditioned air. The appliance is not intended for special purposes like preserving food or works of art, but rather for consumer use in maintaining comfortable indoor temperatures.
Important Technical Specifications:
The manual lists various model numbers for the Ceiling Concealed Duct units, including:
ARNU07GM1A4, ARNU09GM1A4, ARNU12GM1A4, ARNU15GM1A4, ARNU18GM1A4, ARNU24GM1A4, ARNU28GM2A4, ARNU36GM2A4, ARNU42GM2A4, ARNU48GM3A4, ARNU54GM3A4, ARNU60GM3A4, ARNU05GL1G4, ARNU07GL1G4, ARNU09GL1G4, ARNU12GL2G4, ARNU15GL2G4, ARNU18GL2G4, ARNU21GL3G4, ARNU24GL3G4, ARNU76GB8A4, ARNU96GB8A4.
The appliance uses a flammable refrigerant (indicated by a specific symbol), and R32 refrigerant is mentioned for some models. Proper handling and disposal procedures for refrigerants and insulation blowing gas are emphasized. The manual also specifies that the appliance should be stored in a well-ventilated area where the room size corresponds to the room area specified for operation. Ducts connected to the appliance should not contain an ignition source.
For outdoor unit installation, specific clearance measurements are provided:
- More than 300 mm for sides (indicated by arrows around front, back, and side).
- More than 600 mm for one side (likely the front or back, depending on the diagram).
- More than 700 mm for another side.
These clearances are crucial for proper heat radiation and to prevent obstruction.
For indoor unit installation, the manual specifies a minimum inspection hole size of 600 x 600 mm and a minimum clearance of 20 mm for certain parts (likely for maintenance access). The unit's weight should be considered, and the installation location must be able to bear a load exceeding four times the indoor unit's weight.
Usage Features:
- Remote Control Operation: The manual directs users to www.lg.com to find a detailed guide for using the product with its remote control by searching for the model name.
- Energy Saving Suggestions:
- Avoid over-cooling to prevent health issues and excessive electricity consumption.
- Block sunlight with blinds or curtains during operation.
- Keep doors and windows tightly closed.
- Quick Cooling/Heating: Speed up the fan to quickly cool or warm indoor air.
- Ventilation: Periodically open windows for ventilation when using the appliance for long periods to maintain indoor air quality.
- Auto Restart Function: If enabled, the appliance will resume its last operation several minutes after power is restored following a power failure.
- Jet Mode/Auto Operation Mode: These modes may restrict fan speed or temperature adjustments.
- Fan Mode: In this mode, air blows without cooling or heating.
- Heating Mode: The vane may be almost closed initially to allow the appliance to generate enough warm air before blowing it through the indoor unit.
- Defrosting Mode: During heating, the outdoor unit may enter defrosting mode for approximately 15 minutes to remove ice and frost from the coils.
Maintenance Features:
- Cleaning Interval: The air filter should be cleaned every two weeks or more often if necessary.
- Air Filter Cleaning:
- Turn off the appliance.
- Remove the air filter from the air intake.
- Clean the air filter with a vacuum cleaner or wash it with lukewarm water and a mild detergent.
- Dry the filter in the shade.
- Insert the air filter back into the air intake.
- Important Notes: Do not bend the air filter. Do not use water hotter than 40 °C or volatile substances for cleaning.
- Before Long Periods of Disuse:
- Operate the air conditioner in Fan mode for 2 to 3 hours to dry internal mechanisms.
- Turn off the appliance.
- Turn off the breaker.
- After Long Periods of Disuse:
- Clean the air filter and install it.
- Check that the air inlet and outlet of both indoor and outdoor units are not blocked.
- Check that the ground wire is connected correctly.
- General Maintenance Safety:
- Disconnect power and wait for the fan to stop before cleaning or maintenance.
- Do not touch metal parts of the indoor unit when removing the air filter.
- Use a sturdy stool or ladder for work at height.
- Never use strong cleaning agents, solvents, or spray water.
- Ensure the filter is securely inserted to maintain efficiency and prevent malfunction.
- Regularly check the foundation for damage.
- Auto Clean Function: This function reduces remaining moisture inside the indoor unit. Users can choose to let it run or turn off the unit if not desired.
- Service Contact: For any unusual issues, error codes, or if the appliance is submerged in floodwaters, contact an authorized service center. Routine checks and cleaning are the user's responsibility.
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