LG Electronics MFL39817303 installation manual Installation Instructions

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Wall Mounted Mini-Split System

Single Zone

INSTALLATION INSTRUCTIONS

IMPORTANT!

Please read this instruction sheet completely before installing the product.

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

WARNING

Installation or repairs made by unqualified persons can result in hazards to you and others.

Installation MUST conform with local building codes or, in the absence of local codes, with the National Electrical Code NFPA 70/ANSI C1-1993 or current edition and Canadian Electrical Code Part1 CSA C.22.1.

The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.

CAUTION: Improper installation, adjustment, alteration, service or maintenance can void the warranty. The weight of the condensing unit requires caution and proper handling procedures when lifting or moving to avoid personal injury. Use care to avoid contact with sharp or pointed edges.

Safety Precautions

Always wear safety eye wear and work gloves when installing equipment.

Never assume electrical power is disconnected. Check with meter and equipment.

Keep hands out of fan areas when power is connected to equipment.

R-410A causes frostbite burns.

R-410A is toxic when burned.

NOTE TO INSTALLING DEALER: The Owners Instructions and Warranty are to be given to the owner or prominently displayed near the indoor Furnace/Air Handler Unit.

WARNING

When wiring:

Electrical shock can cause severe personal injury or death. Only a qualified, experienced electrician should attempt to wire this system.

Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death.

Ground the unit following local electrical codes.

Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

When transporting:

Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your finger.

When installing...

... in a wall: Make sure the wall is strong enough to hold the unit's weight.

It may be necessary to construct a strong wood or metal frame to provide added support.

... in a room: Properly insulate any tubing run inside a room to prevent "sweating" that can cause dripping and water damage to wall and floors.

... in moist or uneven locatinons: Use a raised concrete pad or concrete blocks provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

... in an area with high winds: Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

... in a snowy area(for Heat Pump Model): Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When connecting refrigerant tubing

Keep all tubing runs as short as possible.

Use the flare method for connecting tubing.

Check carefully for leaks before starting the test run.

When servicing

Turn the power OFF at the main power box(mains) before opening the unit to check or repair electrical parts and wiring.

Keep your fingers and clothing away from any moving parts.

Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced.

ENGLISH

Installation Manual 3

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Contents Room Air Conditioner Table of Contents Installation Instructions No installation may cause a fire and electrical shock Be sure not to do Be sure to follow the instructionIt may cause injury or an accident Operation Otherwise, it may do harm to your health Otherwise, it may cause water leakageOtherwise, it may cause dispute with the neighbors Otherwise, it may cause vibration or water leakageFeatures Symbols used in this ManualInstallation Parts Installation ToolsRead carefully, and then follow step by step Installation Map Select the best Location Indoor unitOutdoor unit Piping Length and Elevation Fixing Installation Plate Drill a Hole in the WallType Putting nut on Flaring WorkCutting Tubes Burrs removalFoamed polyethylene or equivalent is recommended Connecting the PipingCheck IndoorLbf .ft Indoor unit installationFor left rear piping Piping for passage through piping hole Bad case Good caseMove the link upward and close the front panel Connecting the CablesHow to use the front panel OutdoorFront panel removing Connect the wires to the terminals on Refix the cover control to the original positionWith the screw How to connect wiring to the terminals For strand wiringConnecting cable Pour a glass of water on the evaporator Checking the DrainageTo check the drainage Drain pipingForming the Piping Air Purging Air purgingAir purging with vacuum pump If bubbles come out, the pipes have leakage Soap water methodEvacuation Finishing the jobEvaluation of the performance Prepare remote controllerTest Running Settlement of outdoor unitPump Down Pump Down ProcedureSelecting the locationOutdoor Unit Installation guide at the seasideMemo Room Air Conditioner No. MFL39817303