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General| Brand | LG |
|---|---|
| Model | LBUM7280BL |
| Category | Air Conditioner |
| Language | English |
Explains the operation and features of the remote controller for the unit.
Detailed dimensions and mounting hole locations for the indoor unit.
Provides dimensional data and types for the outdoor unit.
Details the safety controls for compressor and 4-way valve operation.
Describes the automatic fan speed adjustment for the Soft-Dry mode.
Explains the unit's operation during cooling mode based on temperature settings.
Describes heating mode operation, including fan and compressor control.
Explains the control mechanism for starting heating operation after defrost.
Details the conditions and duration for defrost operation in heating mode.
Explains error codes displayed on the remote controller and their meanings.
Criteria for choosing suitable installation sites for indoor and outdoor units.
Recommendations for outdoor unit placement, considering environmental factors.
Specifies maximum allowable piping length and elevation differences.
Instructions for mounting the unit to the ceiling with suspension bolts.
Guidelines for installing the wired remote controller, including wiring.
Details on connecting wires to the indoor unit's control board.
Procedures for securely clamping power and connecting cables.
Covers electrical wiring requirements, circuit breaker capacity, and connection procedures.
Instructions for cutting pipes and cables to the correct length.
Procedure for removing burrs from cut pipe ends to ensure proper connection.
Guidance on placing flare nuts onto the pipe before flaring.
Detailed steps for performing correct flaring work on copper pipes.
How to inspect the quality of the flared pipe connection.
Steps for forming and connecting refrigerant piping, ensuring no leaks.
Procedure for removing air and moisture from the refrigeration system.
Important notes on indoor unit declination for drainage and pipe insulation thickness.
Guidance on insulating joints and tubes, and overall thermal insulation requirements.
Essential safety checks and operational guidelines before starting the unit.
Steps for connecting the unit to the power supply and operating it.
Methods for evaluating unit performance by measuring air temperatures.
Configuration options for controlling room temperature using thermistors.
Instructions for connecting multiple units for group control operation.
Step-by-step guide to connecting refrigerant lines and purging air.
Procedure for safely disconnecting refrigerant piping when moving the unit.
Detailed steps for charging the system with refrigerant after evacuation.
Troubleshooting steps if the indoor fan fails to operate.
Diagnostic steps for addressing poor heating performance.
Troubleshooting steps for a non-functional wired remote controller.
Exploded view and parts list for the indoor unit model LBNS3061BL.
