LG HT-C186HLA1 Installation Manual

Cassette type air conditioner

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LG Cassette Type
Air Conditioner
INSTALLATION MANUAL
IMPORTANT
• Please read this installation manual completely before
installing the product.
• When the power cord is damaged, replacement work shall
be performed by authorized personnel only.
• 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.
Visit us at : http://www.lgservice.com
LG

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Summary of Contents for LG HT-C186HLA1

  • Page 1 Visit us at : http://www.lgservice.com LG Cassette Type Air Conditioner INSTALLATION MANUAL IMPORTANT • Please read this installation manual completely before installing the product. • When the power cord is damaged, replacement work shall be performed by authorized personnel only.
  • Page 2: Table Of Contents

    Cassette Type Air Conditioner Installation Manual TABLE OF CONTENTS Installation Required Parts Required Tools Requirements Safety Precautions......3 • Connecting cable • Horizontal meter • Pipes: Gas side • Screw driver Liquid side Introduction........6 • Electric drill • Hanging Bolt Symbols used in this Manual..6 •...
  • Page 3: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. • Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. This symbol indicates the possibility of death or serious injury.
  • Page 4 Safety Precautions Do not modify or extend the power cable. Be cautious when unpacking and installing the product. • There is risk of fire or electric shock. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.
  • Page 5 Safety Precautions • Installation Always check for gas (refrigerant) leakage after Install the drain hose to ensure that water is installation or repair of product. drained away properly. • Low refrigerant levels may cause failure of • A bad connection may cause water leakage. product.
  • Page 6: Introduction

    Introduction Introduction Symbols used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that may cause harm to the air conditioner. This symbol indicates special notes. NOTICE Features Anti-bacteria filter Intake Air Outlet 6 Cassette Type Air Conditioner...
  • Page 7: Installation

    Installation Installation Installation Tools Figure Name Figure Name Screw driver Ohmmeter Electric drill Hexagonal wrench Measuring tape, Knife Ammeter Hole core drill Gas-leak detector Thermometer, Spanner Horizontal meter Torque wrench Flaring tool set Manifold gage Vacuum pump R-22 Installation Manual 7...
  • Page 8: Installation Of Indoor, Outdoor Unit

    Installation Installation of Indoor, Outdoor Unit Selection of the best location 1) Indoor unit • There should not be any heat source or steam near the unit. Ceiling Ceiling Board • There should not be any obstacles to prevent Ceiling Board the air circulation.
  • Page 9 3) Select a well-drained place. 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water...
  • Page 10 5) Piping length and the el e v ation Pipe Size Length Elevation *Additional Capacity (Diameter: Ø ) refrigerant(g/m) Liquid Standard Max. Standard Max. 1/4" 1/2" HT-C186HLA1 (6.35mm) (12.70mm) 5/8" 1/4" HT-C246HLA1 (15.88mm) (6.35mm) 1/4" 5/8" HT-C306HLA0 (6.35mm) (15.88mm) 1/4" 5/8"...
  • Page 11 Installation Ceiling opening dimensions and hanging bolt location Unit : mm • The dimensions of the paper model for installing are Hanging bolt the same as those of the ceiling opening dimensions. • Select and mark the position for fixing bolts and piping hole.
  • Page 12 Installation The Indoor Unit Installation Ceiling Keep the length of the bolt Hanging bolt from the bracket to 40mm (W3/8 or M10) Flat washer for M10 Air Conditioner body (W3/8 or M10) (accessory) Ceiling board Ceiling board Spring washer (M10) Flat washer for M10 (accessory) Paper model...
  • Page 13 Installation WIRED REMOTE CONTROL INSTALLATION DISASSEMBLING Front case • Separate the under plate from Remote control box. Lever carefully Remote control • Fix the cord clamps on the wall by the box open box body using a screw ø 3 tapping screws (accessory). driver, etc.
  • Page 14 Installation Wiring Connection Open the control box cover and connect the remote control cord and Indoor power wires. Indoor Power cord Fire prevention cover Remote Connector Controller cord guide cover Fire prevention cover fitting screw(1 unit) Cord, clip Connector guide cover fitting screw(2 units) Terminal Block in Indoor Terminal Block in Indoor...
  • Page 15 Installation ELECTRICAL WIRING 1. All wiring must comply with LOCAL REGULATIONS. 2. Select a power source that is capable of supplying the current required by the air conditioner. 3. Feed the power source to the unit via a distribution switch board designed for this purpose. 4.
  • Page 16 Installation Connecting Pipes to the Indoor Unit • Preparation of Piping Main cause of gas leakage is defect in flaring Copper Slanted Uneven Rough tube 90° work. Carry out correct flaring work in the following procedure. 1) Cut the pipes and the cable. •...
  • Page 17 Installation Piping Connection 1. Form the piping according to its routing. Avoid bending Liquid side and bending back the same piping point more than three times. (This will result in hardening the pipe.) Indoor 2. After deforming the piping, align centers of the union unit fitting of the indoor unit and the piping, and tighten them Outdoor...
  • Page 18 Installation Installation of Decorative Panel(Elevation Grille) The decorative panel has its Before installing the decorative panel, installation direction. always remove the paper template. 1. Temporarily fix two decorative panel fixing screws (hexagon M5 screw) on the unit body. (Tighten by amount 10mm in length.) The fixing screws (hexagon M5 screw) are included unit box.
  • Page 19 Installation Elevation Grill (Remote Controller_Accessory) • Main Components of Lift Grill Signal transmitter  Lift grill front panel assembly  Bolts for installation (4 EA, P/No. 3A00255K)  Instruction manual Ascend  Remote Controller for lift grill Descend Stop • How to Use Remote Controller As for operation of Remote Controller, use it by directing the transmitter part of Remote Controller to the receiver part of front panel directly under...
  • Page 20 Installation • How to Operate the Lift Grill • Always stop the air conditioner operation for safety before operating lift grill. • Take heed _ there is worry about dust fall etc. when suction grill descends. • In case when the set automatic stop distance goes wrong, check the set value of operation panel and confirm if there is neither obstacle nor mankind.
  • Page 21 Installation CAUTION: Install certainly the decorative panel. Cool air leakage causes sweating. Water drops fall. Good example Bad example Air conditioner unit Air conditioner Cool air leakage unit (no good) Ceiling Ceiling board board Decorative Decorative panel panel Fit the insulator (this part) and be careful for cool air leakage Indoor Unit Drain Piping Upward...
  • Page 22 Installation HEAT INSULATION 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C). Fastening band (accessory) 2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions with Mist"...
  • Page 23: Test Running

    Installation In case of the Outdoor Unit being installed above position of the Indoor Seal a small opening Unit. around the pipings with gum type sealer. 2. Tape the Pipings and Connecting cable from bottom to top. Trap 3. Form the pipings gathered by taping along the exterior wall, and make the trap prevent water from entering into the room.
  • Page 24 Installation 2) Connection of power supply 1. Connect the power supply cord to the independent power supply. • Circuit breaker is required. 2. Operate the unit for 15 minutes or more. 3) Evaluation of the performance 1. Measure the temperature of the intake and discharge air.
  • Page 25: Optional Operation

    Installation Optional Operation Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room temperature is controlled by the thermistor of the main body. •...
  • Page 26 Installation Adjusting air volume to the height of ceiling You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the comfortable atmosphere to consumers. Procedure 1. Choose the selectable position in the table after measuring the height of ceiling. Ceiling height Mode of slide switch Change of air volume...
  • Page 27 Installation Group Control(Optional Wiring) It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent. Main PCB Indoor Unit 1 Indoor Unit 2 Indoor Unit 16 Terminal(Local Supply) Terminal(Local Supply) Terminal(Local Supply) Block Block Block...
  • Page 28 P/No.: 3828A20896 K Printed in Thailand After reading this manual, keep it in a place easily accessible to the user for future reference.

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