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LG LS090HFV3 User Manual

LG LS090HFV3
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SINGLE ZONE MEGA, STANDARD EFFICIENCY,
AND MEGA 115V WALL MOUNTED
ENGINEERING MANUAL
3/4, 1, 1-1/2, and 2 Tons
Mega, Standard Efficiency Models:
LS090HEV2, LS090HFV3
LS120HEV2, LS120HFV3
LS180HEV2, LS180HFV3
LS240HEV2, LS240HFV3
3/4 and 1 Tons
Mega 115V Models:
LS090HXV2 LS120HXV2
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LG LS090HFV3 Specifications

General IconGeneral
BrandLG
ModelLS090HFV3
CategoryAir Conditioner
LanguageEnglish

Summary

TABLE OF SYMBOLS

DANGER

Indicates an imminently hazardous situation leading to death or serious injury if not avoided.

WARNING

Indicates a potentially hazardous situation which could result in death or serious injury if not avoided.

CAUTION

Indicates a potentially hazardous situation which may result in minor or moderate injury if not avoided.

Note

Indicates situations that may result in equipment or property damage accidents only.

UNIT NOMENCLATURE

Family

Defines model series like Art Cool Premier/Gallery/Mirror and High Efficiency/Standard/Mega.

Type

Denotes Indoor Wall Mount Unit (N) or Outdoor Heat Pump Unit (U).

Nominal Capacity

Indicates nominal cooling capacity in Btu/h, e.g., 090 for 9,000 Btu/h.

Indoor/Outdoor Product

Specifies product types like Mega (HEV), Standard Efficiency (HFV), Mega 115V (HXV).

Generation or Revision

Indicates the product's generation, e.g., 1 = First, 2 = Second.

LG AIR CONDITIONER TECHNICAL SOLUTION (LATS) SOFTWARE

Formats

Lists LATS HVAC, LATS CAD2, and LATS Revit formats, available via www.myLGHVAC.com.

Features

Highlights LATS software features like ease of use, tree mode, schematic diagrams, and input options.

LATS Output and Procedure

Details LATS report generation and the proper design to install procedure.

MECHANICAL SPECIFICATIONS

General

Describes the basic system configuration: single outdoor, single indoor, single circuit.

Temperature Ranges

Specifies operating temperature ranges for cooling and heating for Mega and Mega 115V models.

Casing / Frame

Details the construction materials for outdoor and indoor units.

Refrigerant System

Outlines the refrigerant type (R410A) and main components like EEV and reversing valve.

Compressors

Describes the hermetic, digitally controlled, inverter-driven twin-rotary compressor.

Electrical

Covers power supply voltage and tolerance for HEV2/HFV3 and HXV2 models.

Controls

Lists factory-wired components and microprocessor-based algorithms for protection and control.

GENERAL DATA

Pairing Table

Shows available outdoor and indoor unit combinations with their controllers.

ELECTRICAL DATA

Mega, Standard Efficiency Models Electrical Data

Provides electrical specifications for 208-230V systems in a table.

Mega 115V Models Electrical Data

Lists electrical specifications for 115V systems in a table.

FUNCTIONS, CONTROLS, OPTIONS

Indoor Unit Type and Functions

Lists indoor unit types, their functions, and controller compatibility.

Controllers and Special Function Kits

Details remote controllers and optional function kits like Wi-Fi Module and SIMS.

UNIT DIMENSIONS

Outdoor Unit Dimensions

Provides dimensional drawings and measurements for various outdoor unit models.

Indoor Unit Dimensions

Shows dimensional drawings and measurements for various indoor unit models.

ACOUSTIC DATA

Indoor Unit Sound Pressure Levels

Explains measurement and presents acoustic data for indoor units.

Outdoor Unit Sound Pressure Levels

Explains measurement and provides acoustic data for outdoor units.

REFRIGERANT FLOW DIAGRAMS

Mega, Standard Efficiency Models

Shows refrigerant flow diagram for HEV2/HFV3 models and lists thermistor details.

Mega 115V Models

Shows refrigerant flow diagram for HXV2 models and lists thermistor details.

UNIT WIRING DIAGRAMS

Indoor Unit Wiring Diagrams

Provides wiring diagrams for indoor units (Mega/Standard and Mega 115V).

Outdoor Unit Wiring Diagrams

Shows wiring diagrams for outdoor units (Mega/Standard and Mega 115V).

ELECTRICAL CONNECTIONS

Wiring Guidelines and Specifications

Provides guidelines for power source, grounding, and cable specifications.

System Schematics and Terminal Blocks

Illustrates power/communication schematics and terminal block wiring.

Controller Connections

Details wired controller connections, placement, and notes.

AIR FLOW AND TEMPERATURE DISTRIBUTION

Outdoor Unit Air Flow and Static Pressure

Table showing air flow rate and static pressure for outdoor units.

Indoor Unit Air Flow and Temperature Distribution

Presents diagrams for air velocity and temperature distribution for indoor units.

ACCESSORIES

LG Monitoring View (LGMV) Software

Details the LGMV software and cable for diagnostics and data monitoring.

LG Smart Inverter Monitoring System (SIMS)

Describes the SIMS system for displaying and graphing operational data and troubleshooting.

PERFORMANCE DATA

Cooling Capacity

Provides detailed cooling capacity tables for various models and conditions.

Heating Capacity

Offers detailed heating capacity tables for various models and conditions.

Maximum Heating Capacity

Lists maximum heating capacity tables for different models and conditions.

Equipment Selection Procedure

Guides on selecting equipment using correction factors and sizing checks.

APPLICATION GUIDELINES

Placement Considerations (Indoor Unit)

Provides best practices and clearance requirements for indoor unit placement.

Placement Considerations (Outdoor Unit)

Details guidelines for selecting outdoor unit locations and planning for environmental factors.

Installing Outdoor Units Indoors

Discusses reasons, benefits, design considerations, and guidelines for indoor installations.

Refrigerant Piping Design

Lists limitations, tables for pipe sizes, lengths, elevation, and refrigerant charge.

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