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General| Model | ARUN072BTE4 |
|---|---|
| Category | Heat Pump |
| Brand | LG |
| Series | MULTI V |
| Power Supply | 208-230V/60Hz/1Ph |
| Refrigerant | R410A |
| Liquid Pipe (in) | 3/8 |
| Power Supply (V/Hz/Ph) | 208-230/60/1 |
| Capacity Control | Inverter |
| Refrigerant Control | Electronic Expansion Valve |
| Cooling Operating Range (°F DB) | 23 ~ 115 |
| Compressor Type | Scroll |
| Compressor (Oil Type) | POE |
| Fan Motor Type | DC |
Safety warnings and cautions for unit installation, covering fire, electrical shock, and physical injury risks.
Safety precautions related to electrical wiring, including high voltage, grounding, and connections, to prevent injury or death.
Safety guidelines for operating the unit, covering electrical hazards, environmental factors, and proper procedures to avoid damage.
Explains the coding system for identifying LG Multi V Outdoor Units (ODU) based on family, type, capacity, ratings, etc.
Details the nomenclature for LG Multi V Heat Recovery Units (HRU), including family, ports, and series number.
Describes normal operation functions for compressor, fan, and EEVs in cooling and heating modes.
Explains how fuzzy logic is used for stable compressor performance by maintaining evaporating and condensing temperatures.
Details the control logic for Main EEV, Subcooling EEV, and Vapor Injection for master-slave outdoor units.
Explains the oil return operation to recover and return oil to the compressor in cooling and heating modes.
Details the component operations during defrost control to eliminate ice and restore heat exchanger performance.
Describes partial defrost operation that defroths parts of the heat exchanger separately for continuous heating mode.
Outlines stop operation control for cooling and heating modes, and the oil equalizing control for compressors.
Details high and low pressure protection controls for compressor and fan in cooling and heating modes.
Explains discharge temperature control actions for compressor and EEVs based on temperature ranges.
Outlines inverter protection control based on AC input and compressor current limits in cooling and heating modes.
Describes phase detection errors and their corresponding error numbers for three-phase power systems.
Mentions the pressure sensor switch on the Main PCB and its function.
Guides through the four initial setup steps, including factory settings, communication checks, and PCB error checks.
Details the process of indoor unit auto addressing using the red address button and the Main PCB LED display.
Explains how to select modes, functions, options, and values using buttons and DIP switches for system configuration.
Describes automatic and manual emergency operation procedures for inverter compressor failures.
