LG LT-C182QLE0 Installation Manual Download Page 2

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Ceiling Cassette Air Conditioner

Ceiling Cassette Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety Precautions

..............................3

Introduction

..........................................6

Symbols used in this Manual ............6

Features ............................................6

Installation

............................................7

Installation Tools ................................7

Installation of Indoor,
Outdoor Unit ......................................8

Air purging .......................................23

Test running.....................................25

Installer Setting -PQRCUSA0..........27

Installation guide at the seaside......37

❏

Connecting cable

❏

Pipes: Gas side

Liquid side

❏

Hanging Bolt
(W 3/8 or M10 length 650mm)

❏

Insulated drain hose

❏

Additional Drain hose
(Inner Dia.............32mm)

❏

Horizontal meter

❏

Screw driver

❏

Electric drill

❏

Hole core drill (ø70mm)

❏

Flaring Tools set

❏

Torque Wrenches

❏

Hexagonal Wrench (4mm, 5mm)

❏

Gas-leak detector

❏

Owner’s Manual

❏

Installation Manual

❏

Thermometer

Installation

Requirements

Required Parts

Required Tools

Summary of Contents for LT-C182QLE0

Page 1: ... 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 TYPE Ceiling Cassette www lg com ...

Page 2: ...3 Test running 25 Installer Setting PQRCUSA0 27 Installation guide at the seaside 37 Connecting cable Pipes Gas side Liquid side Hanging Bolt W 3 8 or M10 length 650mm Insulated drain hose Additional Drain hose Inner Dia 32mm Horizontal meter Screw driver Electric drill Hole core drill ø70mm Flaring Tools set Torque Wrenches Hexagonal Wrench 4mm 5mm Gas leak detector Owner s Manual Installation Ma...

Page 3: ...air the product There is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse There is risk of fire or elect...

Page 4: ...e Turn the main power off when cleaning or maintaining the product There is risk of electric shock Do not store or use flammable gas or combustibles near the product There is risk of fire or failure of product If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire When the product is soaked flooded or...

Page 5: ...se a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on or put anyting on the product outdoor units There is risk of personal injury and failure of product Always ins...

Page 6: ...lerts 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 Introduction Symbols used in this Manual Features Anti bacteria Air Outlet Air Inlet Remote Controller ...

Page 7: ...stallation Installation Tools Figure Figure Name Screw driver Electric drill Measuring tape Knife Hole core drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas leak detector Thermometer Horizontal meter Flaring tool set Name ...

Page 8: ...t sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles Unit mm Ceiling Ceiling Board Ceiling Board 300 or more Above 2500 400 or less 1000 or more 500 or more 500 or more 300 or less Flo...

Page 9: ... Size mm inch Length A m Elevation B m Gas Liquid Standard Max Standard Max LT H182QLE0 12 70 1 2 6 35 1 4 7 5 30 5 20 30 LT H242QLE0 15 88 5 8 6 35 1 4 7 5 30 5 20 35 LT H302PLE0 15 88 5 8 6 35 1 4 7 5 50 5 30 25 LT H362NLE0 15 88 5 8 6 35 1 4 7 5 50 5 30 45 LT H482MLE0 19 05 3 4 9 52 3 8 7 5 50 5 30 45 LT H602MLE0 19 05 3 4 9 52 3 8 7 5 50 5 30 50 LT C182QLE0 12 70 1 2 6 35 1 4 7 5 30 5 20 30 LT...

Page 10: ...e that the ventilation fan for smoke collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner Make enough distance from a cooking room to install the air conditioner in such a place where it may not suck in oily steam 2 Avoid installing air conditioner in such circumstances where cutting oil mist or iron po...

Page 11: ...0 1 100 CAUTION Tighten the nut and bolt to prevent unit falling Remote Controller Installation Although the room temperature sensor is in the indoor unit the remote controller should be installed in such places away from direct sunlight and high humidity Installation of the remote controller Select places that are not splashed with water Select control position after receiving customer approval T...

Page 12: ...e product so as not to make a gap with the wall side and to prevent shaking after the installation 2 Can set up Wired remote controller cable into three directions Setup direction the surface of wall reclamation upper right If setting up remote controller cable into upper and right side please set up after removing remote controller cable guide groove Remove guide groove with long nose Reclamation...

Page 13: ...rating 4 Please connect indoor unit and remote controller using connection cable 5 Please use extension cable if the distance between wired remote controller and indoor unit is more than 10m Please check if connector is normally connected Connecting cable Indoor Unit side When installing the wired remote controller do not bury it in the wall It can cause damage in the temperature sensor Do not ins...

Page 14: ... damaged it must be replaced by a special cord or assembly available from the manufacturer or its service agent 20mm GN YL NORMAL CROSS SECTIONAL Heat Pump Model 5 lines Cooling Model 4 lines Wiring Connection Open the control box cover and connect the Remote controller cord and Indoor power wires Remote Controller Cable Connecting Cable Terminal Block of Outdoor Unit 1 L 2 N 1 L 2 N 3 4 1 L 2 N 3...

Page 15: ... make proper tighterning impossible Over tightening the terminal screws may break them When none are available follow the instructions below Do not connect wiring of different thicknesses to the power terminal block Slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure below Precautions when laying power wiring Round pressure...

Page 16: ... REGULATION Main power source Switch box Refrigerant pipe Circuit Breaker Use circuit breaker or time delay fuse ELECTRICAL WIRING CONNECTING THE CABLE TO OUTDOOR UNIT 1 Remove the Cover control from the unit by loosening a screw Connect the wires to the terminals on the control board individually as following 2 Secure the cable onto the control board with the holder clamper 3 Refix the cover cont...

Page 17: ... Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 5 Check Compare the flared work with figure below If flare is noted to be defective cut off the flared section and do flaring work again If the piping and the drain hose are in common direction bund...

Page 18: ... in indoor and outdoor connection After completing the piping connection execute vacuum drying for the connecting piping and the indoor unit The vacuum drying must be carried out using the service ports of both the liquid and gas side valves CAUTION Use two wrenches and tighten with regular torque Outdoor unit Liquid side Flare connection Flare connection Gas side Indoor unit Spanner Torque wrench...

Page 19: ...el 2 Remove the Corner covers of the panel 3 Fit the panel on the unit by inserting hooks as shown in picture 4 Insert two screws on diagonal corners of panel Do not tighten the bolts completely The fixing screws are included in the indoor unit box Check the alignment of panel with the ceiling Height can be adjusted using hanging bolts as shown in picture Insert the other two screws and tighten al...

Page 20: ...as Display connector CN DISPLAY Vane control connector CN VANE 1 2 8 Close the cover for control box 9 Fit the link on the panel as shown in picture The link is included in the front panel unit box TM TN TP 10 Attach the other side of link on the filter guide of inlet grille Install the air inlet grille and filter on the panel TM TN TP 11 Install the air inlet grille and Filter on the panel Screw ...

Page 21: ...of water The air conditioner uses a drain pump to drain water Use the following procedure to test the drain pump operation Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operating and noise when electrical wiring is complete When t...

Page 22: ...nt piping gas piping thick piping and drain piping add further 10mm to 30mm thickness material Indoor unit Thermal insulator accessory Fastening band accessory Refrigerant piping HEAT INSULATION 1 Wrap the connecting portion of indoor unit with the Insulation material and secure it with two Plastic Bands for the right pipings If you want to connect an additional drain hose the end of the drain out...

Page 23: ...evacuating the system take a leak test for the piping and tubing between the indoor and outdoor unit Air purging with vacuum pump 1 Check that both liquid and gas pipe between indoor and outdoor have been properly connected 2 Remove the service valve cap from both the gas and liquid side on the outdoor unit 3 Confirm that both the liquid and gas side valve are set to the closed position 4 Connect ...

Page 24: ...or unit connections by a soft brush to check for leakage of the connecting points of the piping 5 If bubbles come out the pipes have leakage Gas side Liquid side Cap Hexagonal wrench 2 way valve Open 3 way valve Close Evacuation 1 If the system is found free from all leakages relive the nitrogen pressure by loosening the charge hose connector at nitrogen cylinder Disconnect the hose from cylinder ...

Page 25: ...w out temperature wind velocity wind volume voltage current presence of abnormal vibration and noise operating pressure piping temperature compressive pressure As to the structure and appearance check following items Is the circulation of air adequate Is the draining smooth Is the heat insulation complete refrigerant and drain piping Is there any leakage of refrigerant Is the remote controller swi...

Page 26: ... fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires 4 Specification of power source 5 Confirm that electrical capacity is sufficient 6 Be sure that the starting volta...

Page 27: ... be responsible for the results In this case free service cannot be provided Function Code Value If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it enters into user setup mode Please press more than 3 seconds for sure 1 When you enter the setting mode initially Function code is displayed on the bottom of the LCD screen 2 Some catego...

Page 28: ...ed 02 Low 5 Ceiling Height 05 03 High 04 Very High 01 V H 02 F H 6 Static Pressure 06 03 V L 04 F L 7 Master Setting 07 00 Slave 01 Master 8 Override Setting 08 00 Slave 01 Master 9 Dry Contact 09 00 Auto Off 01 Auto On 10 Release 3 Min 10 01 Set Delay 11 Zone State 11 01 Variable 02 Fixed 12 Celsius 12 00 Celsius Optimized only for U S A Fahrenheit Switching 01 Fahrenheit 13 Zone Type 13 00 Zone ...

Page 29: ...02 High 03 Super High 5 Product Direction 05 01 Normal 02 Opposite 6 Quick Refresh Priority 06 01 Supply Air First 02 Exhaust Air First 7 Master Setting 07 00 Slave 01 Master 8 Override Setting 08 00 Slave 01 Master 9 Dry Contact 09 00 Auto Off 01 Auto On 10 Release Of 3 Minute Delay 10 01 Set 11 Zone State 11 01 Variable 02 Fixed 12 Humidification for Singular 13 00 Not in Use Ventilation 01 Use ...

Page 30: ...button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it enters into user setup mode Please press more than 3 seconds for sure Please cancel the right and left of wind direction for RAC product 1 Setup figure 01 blinks at the lower part of indication window 2 After installing the product you must run a Test Run mode For details related to this operat...

Page 31: ...sing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 7 If entering into address setup mode by using button it indicates as picture below 2 If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing on...

Page 32: ...if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected The function of 2TH has different operation characteristics according to the product Temperature sensor selection Function 01 Remote controller Operation in remote controller temperature sensor 02 Indoor unit Operation in indoor unit temperature sensor 03 2TH Cooling Operation...

Page 33: ...ere is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected This function is to adjust FAN Airflow rate according to ceiling height For ceiling type product Ceiling height setting is available only for some products Ceiling height of Very high function may not exist depending on the indoor unit Refer to the product manual for more details C...

Page 34: ...de if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 It is a function for settings in group control or 2 remote controller control Remote controller Function Master Indoor unit operates based on master remote controller at group control Master is set when delivering from the warehouse Slave Setup all remote controllers exce...

Page 35: ...ontact mode setup menu as picture below 2 Pressing button will exit settings mode After setup it automatically gets out of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 Dry contact function is the function that is possible to use only when dry contact equipment is separately purchased setup Please refer to dr...

Page 36: ...ut of setup mode if there is no button input for 25 seconds When exiting without pressing set button the manipulated value is not reflected 5 Function Plasma purification Electric heater Dehumidifier Elevation grill Ventilation kit Code 20 21 22 23 24 Setting feature for indoor unit when Air cleaning Heater Dehumidifier Up down grill Ventilation KIT is newly installed or installed unit is removed ...

Page 37: ...tment on the heat exchanger Periodic more than once year cleaning of the dust or salt particles stuck on the heat exchanger by using water Selecting the location Outdoor Unit 1 If the outdoor unit is to be installed close to the seaside direct exposure to the sea wind should be avoided Install the outdoor unit on the opposite side of the sea wind direction 2 In case to install the outdoor unit on ...

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