Related Manuals for LG LSN090HEV2
Summarization of Contents
SAFETY INSTRUCTIONS
TABLE OF SYMBOLS
Defines symbols used for hazard levels and actions in the manual.
INSTALLATION SAFETY
Provides safety instructions and warnings for the installation phase.
SAFETY INSTRUCTIONS
INSTALLATION CONTINUED
Continues safety instructions related to installation procedures.
SAFETY INSTRUCTIONS
WIRING SAFETY
Details safety requirements and adherence to codes for electrical work.
SAFETY INSTRUCTIONS
OPERATION SAFETY
Provides critical safety instructions for operating the unit to prevent hazards.
GENERAL DATA
Unit Nomenclature
Explains the coding system used for model numbers of indoor and outdoor units.
GENERAL DATA
Required Tools and Parts
Lists tools and components provided or required for installation.
GENERAL DATA
Mega System Specifications
Presents detailed technical specifications for the Mega series units.
GENERAL DATA
Mega 115V System Specifications
Details technical specifications for the Mega 115V series units.
GENERAL DATA
Electrical Specifications
Provides electrical data, including voltage, ampacity, and breaker requirements.
GENERAL INSTALLATION GUIDELINES
Outdoor Unit Location Selection
Guidelines for choosing the optimal location for the outdoor unit.
GENERAL INSTALLATION GUIDELINES
Snow and Ice Considerations
Advises on precautions and installation methods for areas with snow or ice.
Tie-Downs and Lightning Protection
Details requirements for securing units and lightning protection.
GENERAL INSTALLATION GUIDELINES
Oceanside Applications
Recommendations for installing units in coastal areas to prevent corrosion.
GENERAL INSTALLATION GUIDELINES
Outdoor Unit Clearances
Specifies minimum clearances for airflow and service access around the outdoor unit.
GENERAL INSTALLATION GUIDELINES
Rigging, Lifting, and Outdoor Unit Mounting
Covers safe practices for handling, lifting, and mounting the outdoor unit.
GENERAL INSTALLATION GUIDELINES
Outdoor Unit Mounting and Concrete Platform Specs
Details concrete foundation requirements and mounting methods for outdoor units.
GENERAL INSTALLATION GUIDELINES
Indoor Unit Location Selection
Provides guidelines for selecting the best location for the indoor unit.
GENERAL INSTALLATION GUIDELINES
Drilling Piping Holes and Indoor Unit Mounting
Instructions for drilling wall holes and mounting the indoor unit installation plate.
GENERAL INSTALLATION GUIDELINES
Removing Indoor Unit Bottom Cover
Procedure for safely removing the bottom cover of the indoor unit for access.
GENERAL INSTALLATION GUIDELINES
Mounting Indoor Unit to Installation Plate
Steps for attaching the indoor unit to the wall plate and securing it.
GENERAL INSTALLATION GUIDELINES
Preparing for Piping and Electrical Connections
Steps to prepare the indoor unit for connecting piping and electrical wiring.
REFRIGERANT SAFETY AND LIMITATIONS
Refrigerant Safety Standards
Discusses ASHRAE standards for refrigerant safety and concentration limits.
Device Connection Limitations
Covers piping length and elevation limits for system reliability.
SELECTING FIELD-SUPPLIED PIPING
Copper Piping Selection and Guidelines
Details on selecting and using ACR copper piping for the system.
COPPER EXPANSION AND CONTRACTION
Pipe Expansion and Contraction Calculations
Explains how to calculate pipe expansion and contraction based on temperature and length.
PIPING HANDLING
Piping Materials, Handling, and Solutions
Covers proper handling, storage, and solutions for piping issues like moisture and dust.
REFRIGERANT SYSTEM ENGINEERING
Pipe Size and Component Restrictions
Prohibits pipe size substitutions and in-line components, and discusses isolation valves.
Elbows and Pipe Bends
Guidelines for using elbows and managing pipe bends for pressure loss.
REFRIGERANT SYSTEM ENGINEERING
Managing Obstacles and Pipe Supports
Provides guidance on routing pipes around obstacles and proper support spacing.
REFRIGERANT SYSTEM ENGINEERING
Pipe Sleeves and Underground Piping
Details on using pipe sleeves for wall penetrations and underground piping requirements.
FLARING AND BRAZING PROCEDURES
Flaring Procedure and Dimensions
Step-by-step guide for flaring pipe ends and specifications for flare dimensions.
FLARING AND BRAZING PROCEDURES
Flare Nut Tightening and Brazing Practices
Covers proper torque for flare nuts and safety practices for brazing.
REFRIGERANT PIPING CONNECTIONS
Installation Overview and Pipe Support
Illustrates piping connections and emphasizes adherence to pipe support guidelines.
REFRIGERANT PIPING CONNECTIONS
Special Piping Applications
Covers installation for outdoor units below or above indoor units, and drain routing.
REFRIGERANT PIPING CONNECTIONS
Outdoor Unit Piping Connections
Details on connecting refrigerant piping to the outdoor unit, including torque specifications.
REFRIGERANT PIPING CONNECTIONS
Removing Indoor Unit Cover (HXV)
Steps for removing the bottom cover of the HXV indoor unit for access.
REFRIGERANT PIPING CONNECTIONS
Positioning Indoor Unit Piping (HXV)
Instructions for accessing and properly bending piping for HXV indoor units.
REFRIGERANT PIPING CONNECTIONS
Removing Indoor Unit Bottom Cover (HEV2)
Steps for removing the bottom cover of the HEV2 indoor unit for access.
REFRIGERANT PIPING CONNECTIONS
Indoor Unit Piping on Left Side (HEV2)
Guide for installing piping on the left side of HEV2 indoor units.
REFRIGERANT PIPING CONNECTIONS
Indoor Unit Piping on Right Side (HEV2)
Guide for installing piping on the right side of HEV2 indoor units.
REFRIGERANT PIPING CONNECTIONS
Drain Piping and Hose Installation
Covers installing condensate drain piping for outdoor and indoor units.
REFRIGERANT PIPING CONNECTIONS
Condensate Drain Hose Installation Details
Illustrates correct and incorrect methods for installing condensate drain hoses.
REFRIGERANT PIPING CONNECTIONS
Drain Hose Leak Check and Bundling
Procedures for checking drain hoses for leaks and bundling components.
INSULATION
Refrigerant Piping System Insulation
Guidelines for insulating refrigerant piping for safety and performance.
INSULATION
EPDM Insulation Wall Thickness Requirements
Specifies minimum EPDM insulation wall thickness based on location and pipe type.
ELECTRICAL SYSTEM INSTALLATION
Electrical Safety and Connection Guidelines
Covers essential safety warnings and guidelines for electrical connections.
ELECTRICAL SYSTEM INSTALLATION
Power and Communication Cable Connections
Details on connecting power and communication cables, including terminal usage.
ELECTRICAL SYSTEM INSTALLATION
Power Supply and Wiring Specifications
Provides specifications for power supply, wire types, and circuit breakers.
ELECTRICAL SYSTEM INSTALLATION
Communication Cable Specs (Outdoor to Indoor)
Specifies requirements for communication cables between units, including gauge and shielding.
ELECTRICAL SYSTEM INSTALLATION
Wiring Diagrams for Longer Cable Runs
Illustrates wiring configurations for cable runs exceeding 130 feet.
ELECTRICAL SYSTEM INSTALLATION
Controller Options and Connections
Describes features of wireless remote and options for wired controllers.
ELECTRICAL SYSTEM INSTALLATION
Indoor Unit Wiring (HXV)
Detailed steps for connecting electrical wiring to the HXV indoor unit.
ELECTRICAL SYSTEM INSTALLATION
Indoor Unit Wiring (HEV2)
Detailed steps for connecting electrical wiring to the HEV2 indoor unit.
ELECTRICAL SYSTEM INSTALLATION
Indoor Unit Wiring Path Options
Describes cable routing options for indoor unit wiring based on piping direction.
ELECTRICAL SYSTEM INSTALLATION
Outdoor Unit Wiring Connections
Instructions for connecting electrical wiring to the outdoor unit.
ELECTRICAL SYSTEM INSTALLATION
Outdoor Unit Wiring Diagrams
Provides wiring diagrams for connecting outdoor units to power and indoor units.
FINAL INSTALLATION PROCEDURES
Triple Leak / Pressure Test
Procedure for testing the refrigerant piping system for leaks and pressure integrity.
FINAL INSTALLATION PROCEDURES
Deep Evacuation Procedure
Steps for achieving a deep vacuum in the refrigerant system for optimal performance.
FINAL INSTALLATION PROCEDURES
Deep and Triple Evacuation Tests
Details on performing deep and triple evacuation tests on the refrigerant system.
FINAL INSTALLATION PROCEDURES
Triple Evacuation Procedure Steps
Step-by-step guide for conducting the triple evacuation test.
FINAL INSTALLATION PROCEDURES
Refrigerant Trim Charge and Finishing the Job
Instructions for adding refrigerant and completing the installation.
FINAL INSTALLATION PROCEDURES
Reattaching Indoor Unit Bottom Cover (HXV)
Steps for reattaching the bottom cover of the HXV indoor unit.
FINAL INSTALLATION PROCEDURES
Reattaching Indoor Unit Bottom Cover (HEV2)
Steps for reattaching the bottom cover of the HEV2 indoor unit.
FINAL INSTALLATION PROCEDURES
Air Filter Disassembly and Assembly
Instructions for removing and reinstalling the indoor unit air filter.
FINAL INSTALLATION PROCEDURES
Battery Installation, Test Run, and Performance Evaluation
Steps for battery installation, system test run, and performance checks.
FINAL INSTALLATION PROCEDURES
Installer Mode and Cooling Only Operation
Guide to entering installer mode and enabling/disabling cooling-only operation.
FINAL INSTALLATION PROCEDURES
Pump Down Procedure
Procedure for collecting refrigerant into the outdoor unit during servicing.
TROUBLESHOOTING
LG SIMS - Self Diagnosis Functions
Overview of the SIMs app and WLAN module for system monitoring and troubleshooting.
TROUBLESHOOTING
Error Codes and Decoding
Explains how to interpret error codes displayed on unit LEDs and the SIMs app.
TROUBLESHOOTING
Mega HEV2 Outdoor Unit Error Codes
Lists error codes specific to the Mega HEV2 outdoor unit.
TROUBLESHOOTING
Mega 115V HXV Indoor Unit Error Codes
Lists error codes specific to the Mega 115V HXV indoor unit.
TROUBLESHOOTING
Mega 115V HXV Outdoor Unit Error Codes
Lists error codes specific to the Mega 115V HXV outdoor unit.
CAUTIONS FOR REFRIGERANT LEAKS
Refrigerant Leak Safety and Concentration Limits
Addresses safety concerns related to refrigerant leaks and concentration limits.
INSTALLATION CHECKLIST
Major Component Rough-In Checklist
Checklist items for initial component setup and placement.
Piping, Insulation, and Brazing
Checklist items for refrigerant piping, insulation, and brazing installation.
Drainage and Electrical Connections
Checklist items for condensate drain setup and electrical connections.
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