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LG Multi V 5 ARUM160LTE5 - User Manual

LG Multi V 5 ARUM160LTE5
55 pages
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MFL67221448
Rev. 01_091818
INSTALLATION MANUAL
AIR
CONDITIONER
www.lg.com
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
Please retain this installation manual for future reference after reading it
thoroughly.
For Heat Pump / Heat Recovery system
Original instruction
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
ENGLISH
ESPAÑOL

Table of Contents

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LG Multi V 5 ARUM160LTE5 Specifications

General IconGeneral
BrandLG
ModelMulti V 5 ARUM160LTE5
CategoryAir Conditioner
LanguageEnglish

Summary

Important Safety Instructions

General Safety Warnings

Information on serious injury, death, or product damage if directions are ignored.

Installation Safety Precautions

Hazards from unqualified persons, manual use by technicians, proper wiring, grounding, and contacting dealers.

Installation and Operation Safety Warnings

Installation Precautions

Warnings against self-installation, flammables, incorrect breakers, improper stands, and incorrect gas usage.

Operation Precautions

Warnings against unspecified power cords, dedicated outlets, and preventing water entry.

General Safety Precautions

Handling and Unit Access Safety

Precautions on touching switches, sharp edges, outdoor unit access, and inlet grilles.

Installation Cautions

Checks for refrigerant leaks, noise, level installation, combustible gas, and cable selection.

Operational Safety Guidelines

Environment and Handling Safety

Warnings against special environments, blocking inlet/outlet, secure connections, and proper transportation.

INSTALLATION PROCESS

Installation Steps Overview

Sequence of installation tasks from preparation to customer transfer.

Outdoor Units Information

Details on allowable indoor/outdoor unit combinations.

Alternative Refrigerant R410 A

Information on R410A refrigerant properties and handling.

Select the Best Location

Guidelines for selecting an optimal installation space.

Location Selection and Precautions

General Installation Location Avoidances

Avoiding corrosive environments, heavy snowfall, and noise disturbance.

Heat Recovery Unit Location Criteria

Specific location requirements for HR units.

Installation Space and Lifting

Individual Installation Space Requirements

Specifies minimum clearances for various installation configurations.

Winter Operation and Snow Protection

Measures for winter operation, snow protection, and wind direction.

Lifting Method

Guidelines for carrying and lifting the unit securely.

Unit Installation and Foundation

Handling and Installation Precautions

Precautions during carrying, avoiding damage, and proper lifting.

Foundation for Installation Requirements

Requirements for fixing the unit securely with bolts and using anti-vibration materials.

Foundation Safety Warnings

Risks of unit dropping due to insufficient support strength.

Piping Preparation and Connection

Pipe Cutting and Flaring Procedures

Steps for cutting pipes, removing burrs, and performing flaring.

Piping Connection Safety Cautions

Using charge hoses, checking leaks, and using proper torque.

Shutoff Valve Operation

Procedures for opening and closing shutoff valves.

Flare Connection Torque and Insulation

Flare nut tightening torque and shutoff valve insulation.

Refrigerant Piping Principles and Materials

Plumbing Materials and Storage

Requirements for pipe thickness, purity, and handling.

Refrigerant Piping Principles

Key principles of drying, cleanliness, and airtightness for piping.

Refrigerant Piping Safety Cautions

Warnings about using nitrogen, pressure valves, and antioxidants.

Refrigerant Piping Installation

Heat Pump System Piping Precautions

Details for HP system installation and valve operation.

Refrigerant Piping Safety Warnings

Warnings about leaks during welding, poisonous gas, and closed spaces.

Outdoor Unit Connections

Diagrams for connecting multiple outdoor units.

Refrigerant Piping Restrictions and Warnings

Piping Material and Preparation Cautions

Using approved materials, cleaning, and reducing bends.

Refrigerant Piping Restrictions

Observing rated length, height difference, and diameter restrictions.

Refrigerant Handling and System Warnings

Warnings on recharging refrigerant, mixing refrigerants, and pipe diameter selection.

Heat Recovery System Piping

HR System Piping Precautions

Precautions and connection details for HR systems.

Refrigerant Piping Safety Warnings

Warnings about leaks during welding, poisonous gas, and closed spaces.

HR Unit Installation Procedures

Steps for hanging bolts, installing nuts, and ensuring level installation.

HR Unit and Refrigerant Piping

Pipe Connection Details for HR Units

Connecting liquid, low pressure gas, and high pressure gas pipes.

HR Unit Type and Zoning Control

Classifying HR units and installing zoning control.

HR Unit Installation Warnings

Warnings on branch pipe capacity, total capacity, and zoning functions.

Refrigerant Piping Specifications and Cautions

Piping Material and Thickness Requirements

Using approved materials and complying with wall thickness regulations.

Piping Preparation and Restrictions

Cleaning, preventing contaminants, reducing bends, and observing piping restrictions.

Refrigerant Handling and System Warnings

Warnings on recharging refrigerant, mixing refrigerants, and pipe diameter selection.

Indoor and Outdoor Unit Pipe Connections

Pipe Connection Methods

Options for front or side pipe connections.

Leakage Prevention Cap Removal

Steps to remove the leakage prevention cap before pipe work.

Pipe Drawing Out Procedures

Method for drawing out pipes on the front side.

Knock Out Work Cautions

Avoiding damage during knock-out work and removing burrs.

Refrigerant Piping System Configurations

Pipe Drawing Out Methods

Method for drawing out pipes on the bottom side.

Refrigerant Piping System Diagrams

Diagrams illustrating Y branch, combination, and header methods.

Pipe Connection Procedures for HR Systems

Pipe Drawing Out for HR Systems

Method for drawing out pipes on the front side for HR systems.

Leakage Prevention Cap Removal

Steps to remove the leakage prevention cap before pipe work.

Refrigerant Piping System Specifications

4 Outdoor Unit System Configuration

Illustrating connection for 4 outdoor units.

Branch Pipe Diameter Selection

Table specifying pipe diameters based on total capacity.

Refrigerant Piping Length Limits

Formula and limits for total pipe length.

Conditional Pipe Length Applications

Conditions for applying longer pipe lengths.

Indoor Unit Connection Pipe Diameters

Pipe diameter requirements for indoor unit connections.

Pipe Diameter Tables and Connection Patterns

Outdoor Unit to First Branch Pipe Diameter

Table detailing pipe diameters based on ODU capacity.

Pipe Diameter Selection Warnings

Warning about increasing pipe diameter B if it's larger than main pipe A.

Connection Patterns for Y Branch, Header, and HR Units

Illustrating various connection patterns.

Pipe Connection Methods and Length Limits

Outdoor to Indoor Unit Connection Method

Diagram and parameters for connecting outdoor to indoor units.

Pipe Length Limit Tables

Tables detailing pipe length limits for different connection methods.

Pipe Length and Level Difference Warnings

Warnings about increasing pipe diameter for length/level differences.

Pipe Diameter Tables and Conditional Applications

Outdoor Unit to First Branch Pipe Diameter

Table detailing pipe diameters based on ODU capacity.

Pipe Diameter Selection Warnings

Warning about increasing pipe diameter B if it's larger than main pipe A.

Branch to Last Branch Pipe Diameter

Table specifying pipe diameters based on total capacity.

Conditional Pipe Length Applications

Conditions for applying longer pipe lengths.

Indoor Unit Connection Pipe Diameters

Pipe diameter requirements for indoor unit connections.

Outdoor Unit Pipe Connection Methods

General Outdoor Unit Pipe Connections

Illustrating general pipe connections between outdoor units.

Oil Traps for Pipe Connections

Application of oil traps for longer pipe lengths and specific conditions.

Examples of Wrong Pipe Connections

Illustrating incorrect pipe connections and oil accumulation.

Branch Pipe Fittings

Y Branch Fitting Details

Details on Y branch fittings and installation.

Header Fitting Details

Details on header fittings and installation.

Branch Pipe and Header Specifications

Header Specifications

Specifications for header units.

Y Branch Pipe Specifications

Specifications for Y branch pipe units.

Distribution Methods and Vacuum Mode

Distribution Method Configurations

Illustrating horizontal, vertical, and other distribution methods.

Vacuum Mode Operation and Settings

Function for creating vacuum, setting methods, and turning off.

Vacuum Mode Safety Caution

Warning about ODU operation stopping during vacuum mode.

Leak Test and Vacuum Drying Procedures

Leak Test Procedure and Notes

Procedure for pressurizing nitrogen gas, checking leaks, and temperature correction.

Refrigerant Pressure Cautions

Preventing nitrogen entry and proper cylinder positioning.

Vacuum Drying Process and Cautions

Vacuum drying procedure, moisture, and leak warnings.

Vacuuming Safety Warnings

Warnings against using air/oxygen and the risks of fire/explosion.

Refrigerant Charging Procedures

Refrigerant Charging for Heat Pump Systems

Manifold gauge and handle connections for HP systems.

Refrigerant Charging for Heat Recovery Systems

Diagrams for refrigerant charging in HR systems.

Refrigerant Charging Safety Warnings

Warnings about vacuuming, refrigerant amount, and potential issues.

Refrigerant Amount Calculation and Insulation

Additional Refrigerant Calculation Method

Formula and tables for calculating additional refrigerant.

Thermal Insulation of Refrigerant Piping

Requirements for insulating refrigerant piping to prevent condensation.

Insulation Cautions and Examples

Cautions and examples of correct and incorrect insulation practices.

Refrigerant Leakage Safety Regulation

Regulation for refrigerant leakage and equation for safety.

Penetrations and Wiring Diagrams

Penetration Installation Details

Diagrams and materials for wall, floor, and roof penetrations.

Wiring Diagram Configurations

Diagrams showing master/slave outdoor and indoor unit connections.

Electrical Wiring Safety and Precautions

General Electrical Wiring Cautions

Following government regulations for electrical work.

Electrical Wiring Safety Warnings

Risks of electric shock or fire from improper electrical work.

Wiring Grounding and Allowance Cautions

Grounding outdoor units and providing wiring allowance.

Power Wiring Precautions

Using round terminals, avoiding mixed thickness wires, and securing cables.

Control Box and Cable Management

Control Box Wiring Connections

Removing panels and connecting communication cables.

Communication and Power Cable Specifications

Specifications for communication and remote control cables.

Shielded Wire Grounding Caution

Grounding shielded wires.

Cable Separation Guidelines

Recommended spacing between communication and power cables.

Grounding Safety Assurance

Ensuring proper earthing to prevent electric shock.

Power Supply and Field Wiring

Main Power Supply Requirements

Separate power supplies, voltage drops, cable size, and cord types.

Power Supply Safety Cautions

Earth leakage breaker requirements and correct breaker/fuse usage.

Public Electric Power Quality Standards

Compliance with EN/IEC standards for voltage and harmonic currents.

Field Wiring Diagrams

Diagrams for field wiring of single outdoor units.

Wiring Grounding and Connection Methods

Indoor Unit Grounding Requirements

Requirements for preventing electric shock and noise.

Main Switch and Phase Protection

Installing a main switch and phase protection circuits.

IndoorOutdoor Unit Communication Wiring

BUS and STAR type communication cable connections.

Series Wiring Safety Warnings

Warnings about total capacity limits for series wiring.

Wiring Connection Examples and Setting Checks

Power and Communication Cable Connections (UXA)

Illustrating wiring connections for UXA model.

Oil Level Sensor Interference Caution

Avoiding interference with the oil level sensor.

Checking Outdoor Unit Settings

Checking settings via DIP switch and 7-segment LED.

HR Unit Settings and Valve Addressing

Quick Control Settings for HR Units

Settings for HR unit board and switch functions.

MasterSlave DIP Switch Settings

DIP switch settings for master and slave units.

Valve Addressing Methods (AutoManual)

Selecting between auto and manual valve addressing.

Zoning Control Setup

Setting up zoning control for indoor units.

HR Unit Model Selection and Addressing

HR Unit Model Selection and DIP Switches

DIP switch settings for different HR unit models and branch connections.

HR Unit Addressing Switches (SW05 M)

Using the rotary switch for HR unit addressing.

Manual Valve Addressing Switches (SW01 MSW03 MSW04 M)

Using DIP and tact switches for manual valve addressing.

Normal and Zoning Addressing Methods

Normal manual valve addressing and addressing with zoning.

Automatic Addressing Procedure

Automatic Addressing Steps

Steps for performing automatic addressing of indoor units.

Automatic Addressing Safety Cautions

Cautions regarding PCB replacement, power supply, timing, and DIP switch settings.

Pipe Detection Procedures

Automatic Pipe Detection Steps

Steps for automatic pipe detection.

Pipe Detection Warnings and Cautions

Warnings and cautions for pipe detection processes.

Manual Pipe Detection Steps

Steps for manual pipe detection.

Auto Pipe Detection Flowchart

Flowchart illustrating the auto pipe detection process.

Manual Addressing and Pipe Detection Examples

Manual Valve Addressing Examples (Zoning and Non-Zoning)

Examples of manual valve addressing for zoning and non-zoning.

Manual Pipe Detection Flowchart

Flowchart for manual addressing of pipe detection.

Checking Pipe Detection Results

Steps to check pipe detection results.

Master Indoor Unit Zoning Setup

Setting the master indoor unit in zoning.

Valve Addressing and Group Number Setting

Valve Address Checking Example

Example of checking valve addresses.

Indoor Unit Group Number Setting

Setting group numbers for indoor units.

Valve Address and Control Address Warnings

Warnings on matching valve address and central control address.

Optional Function Selection

Selecting optional functions.

Optional Mode and Function Selection

Optional Mode Selection Overview

Overview of optional mode selection.

Function Settings Table

Table detailing function settings and modes.

Optional Function Safety Cautions

Cautions regarding performing optional functions.

Performance Enhancement Functions

High Static Pressure Compensation Mode

Mode to secure airflow rate under static pressure.

Fan Maximum RPM Setting

Table showing maximum fan RPM for different steps.

Night Low Noise Function

Function to reduce fan noise at night.

Overall Defrost Mode Setting

Setting for overall defrost operation.

ODU Address Setting

Method for setting the outdoor unit address.

Additional Performance Functions

Capacity Up Airflow Adjusting for IDU (Heating)

Adjusting airflow for IDU heating based on capacity.

Snow Removal & Rapid Defrost Settings

Setting for snow removal and rapid defrost.

Low Ambient Kit Settings

Setting for low ambient kit.

Operational Modes and Limits

High Efficiency Mode (Cooling Operation)

Adjusting target low pressure based on ODU temperature.

Auto Dust Removal Mode

Function to remove dust using reverse run fan.

Compressor Max. Frequency Limit

Setting the maximum compressor frequency limit.

Advanced Function Settings

MAX. RPM Limit Setting

Setting limits for maximum fan RPM.

SLC (Smart Load Control)

Function for setting variable target pressure.

Humidity Reference Setting

Setting humidity reference.

Central Control Connection at Indoor Unit

Connecting central control at the indoor unit side.

Compressor Input Current Limit

Setting the compressor input current limit.

Operation Modes and Controllers

Power Consumption Display

Displaying power consumption on the wired remote controller.

Base Pan Heater Operation

Operation mode for base pan heater.

Low Temperature Heating Defrost

Setting for overall defrost in low temperatures (heating).

Comfort Cooling Operation

Reducing ODU energy consumption without thermo-off.

Self-Diagnosis Function and Error Codes

Error Indicator and Display

How errors are indicated and displayed on units and controllers.

Indoor Unit Related Errors

List of indoor unit related errors and their causes.

Outdoor Unit Related Errors

Outdoor Unit Error Codes and Causes

Table listing outdoor unit errors, titles, and causes.

Additional Outdoor and HR Unit Errors

Outdoor Unit Error Codes and Causes (continued)

Listing further outdoor unit errors, titles, and causes.

Network and HR Unit Related Errors

Errors related to network and HR unit communication.

Refrigerant Leak Cautions and Concentration Limits

Refrigerant Leak Introduction and Limits

Information on R410A refrigerant and concentration limits.

Countermeasures for Exceeding Concentration Limits

Actions to take when refrigerant concentration limits are exceeded.

Limiting Concentration Checking Procedure

Steps to check and calculate refrigerant concentration limits.

Minimum Room Capacity Calculation

Method to calculate minimum room capacity.

Seaside Installation Guidelines

Seaside Installation Cautions

Warnings against corrosive gases and sea wind direct exposure.

Outdoor Unit Location Selection for Seaside

Guidelines for selecting outdoor unit location near the seaside.

Airborne Noise Emission Information

Information on airborne noise levels and exposure.

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