LG Multi F242CX Installation Manual Download Page 2

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Multi Air Conditioner

Multi Air Conditioner Installation Manual

TABLE OF CONTENTS

Safety Precautions

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

Introduction

........................................8

Symbols used in this manual..........8

Features ...........................................8

Installation

..........................................9

Selection of the best location..........9

Piping Length and Elevation ...........9

Drill a Hole in the Wall...................10

Flaring Work...................................10

The Indoor Unit Installation...........12

Checking the Drainage .................15

Wired Remote Controller
Installation ......................................16

Connecting the Cables..................18

Optional Operation ........................21

❏

Connecting cable

❏

Pipes: Gas side

Liquid side

❏

Insulation materials

❏

Additional drain pipe

❏

Level gauge

❏

Screw driver

❏

Electric drill

❏

Hole core drill(ø70mm)

❏

Flaring tool set

❏

Specified torque wrenches
1.8kg.m, 4.2kg.m, 5.5kg.m,
6.6kg.m
(different depending on model No.)

❏

Spanner ........................Half union

❏

A glass of water

❏

Screw driver

❏

Hexagonal wrench(4mm)

❏

Gas-leak detector

❏

Vacuum pump

❏

Gauge manifold

Installation

Requirements

Required Parts

Required Tools

Summary of Contents for Multi F242CX

Page 1: ...letely before installing the product When the power cord is damaged replacement should 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 ESPAÑOL ...

Page 2: ...e Drainage 15 Wired Remote Controller Installation 16 Connecting the Cables 18 Optional Operation 21 Connecting cable Pipes Gas side Liquid side Insulation materials Additional drain pipe Level gauge Screw driver Electric drill Hole core drill ø70mm Flaring tool set Specified torque wrenches 1 8kg m 4 2kg m 5 5kg m 6 6kg m different depending on model No Spanner Half union A glass of water Screw d...

Page 3: ... to do Be sure to follow the instruction Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product Th...

Page 4: ... Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Operation Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Take care to ensure that power cable cou...

Page 5: ... the product or electric shock Do not store or use flammable gas or combustibles near the product There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury elect...

Page 6: ... will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Do not expose the skin directly to cool air for long periods of time Don t sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods work...

Page 7: ...tion or damage Do not insert hands or other objects through the air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury Do not drink the water drained from the product It is not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury Replace th...

Page 8: ...o the air conditioner This symbol indicates special notes NOTICE Introduction Symbols used in this Manual Features Air Intake Vents Air Outlet Vents Connecting Wires Piping Drain Hose Base Plate Air Outlet Air Intake side rear Connection pipe Drain hose Connecting wire Control cover Air filters Air outlet vents Air intake vents Remote Controller ...

Page 9: ... shall easily connect with the outdoor unit The place where the unit is not affected by an electrical noise The place where air circulation in the room will be good There should not be any heat source or steam near the unit H 600 600 Top view unit mm Front view Front Inspection hole 600X600 Control box 1000 Piping Length and Elevation Total A B C 30 30 45 45 Max Room A B C 15 15 15 15 Standard len...

Page 10: ...es purchased locally 2 Measure the distance between the indoor and the outdoor unit 3 Cut the pipes a little longer than measured distance 4 Cut the cable 1 5m longer than the pipe length Burrs removal 1 Completely remove all burrs from the cut cross section of pipe tube 2 Put the end of the copper tube pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubi...

Page 11: ...rrow mark Cone Yoke Handle Bar A Check 1 Compare the flared work with the figure by 2 If a flared section is defective cut it off and do flaring work again Slanted Inside is shiny without scratches Smooth all round Even length all round Surface damaged Cracked Uneven thickness Improper flaring mm inch mm Ø6 35 1 4 1 1 1 3 Ø9 52 3 8 1 5 1 7 Ø12 7 1 2 1 6 1 8 Ø15 88 5 8 1 6 1 8 Ø19 05 3 4 1 9 2 1 Ou...

Page 12: ...he unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vibration A place where service can be easily performed CASE 1 POSITION OF SUSPENSION BOLT CASE 2 POSITION OF CONSOLE BOLT Unit mm Drainage hole M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 A B C 1 3 mm D G H I E F J A B...

Page 13: ...lts on the ceiling Mount the suspension bolts to the set anchor firmly Secure the installation plates onto the suspension bolts adjust level roughly using nuts washers and spring washers 1 Set anchor Old building New building 2 Plate washer 3 Spring washer 4 Nut 5 Suspension bolts Tighten the nut and bolt to prevent unit falling Local supply Set anchor Plate washer M10 Spring washer M10 Nut W3 8 o...

Page 14: ...drain with downward inclination 1 50 to 1 100 Prevent any upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe Install the P Trap or U Trap to prevent a water leakage caused by the blocking of intake air filter Applied U Trap Dimension 1 Install declination of the indoor unit is very important for the drain of the duct type air...

Page 15: ...gerant pipe Local supply Hose clip for thermal insulator Local supply Power cable Liquid pipe Thermal insulator Gas pipe Tape Checking the Drainage 1 Checking the Drainage 1 Remove the Air Filter 2 Check the drainage Spray one or two glasses of water upon the evaporator Ensure that water flows drain hose of indoor unit without any leakage Common direction of drain and piping Tape the tubing drain ...

Page 16: ... the under plate on the wall Separate the under plate from Remote control box Fix the cord clamps on the wall by ø 3 tapping screws accessory Fix the remote control cord DISASSEMBLING ELECTRICAL WIRING Wire and make sure that terminal numbers are matched on unit side and remote controller side The maximum length of the cord is 100m If the length of the cord exceeds 50m use a wire size greater than...

Page 17: ...D display For proper display of the remote controller LED s the remote controller should be installed properly as shown in Fig 1 The standard height is 1 2 1 5 m from floor level Operation unit ZONE 1 2 3 4 Humidify JET AUTO AUTO SWING OPERATION FAN SPEED Program set SUB FUNCTION SET TEMP Room Temp HI MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 ...

Page 18: ...that they may not be pulled out easily Connect the wires according to color codes referring to the wiring diagram If a power plug is not used provide a circuit breaker between power source and the unit as shown by The power cord connected to the outdoor unit should be complied with the following specifications UL ETL recognized or CSA certified The power connecting cable connected to the indoor an...

Page 19: ...rical 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 cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent of the r...

Page 20: ...itted Terminal on the OUTDOOR UNIT 1 L 1 L 2 N 2 N 3 A 3 B Terminal on the INDOOR UNIT A Unit 1 L 2 N 3 4 Terminal on the INDOOR UNIT B Unit 1 L 2 N 3 4 Terminal on the OUTDOOR UNIT 1 L 1 L 2 N 2 N 2 N 3 A 3 B 3 C 1 L Terminal on the INDOOR UNIT A Unit 1 L 2 N 3 4 Terminal on the INDOOR UNIT B Unit 1 L 2 N 3 4 Terminal on the INDOOR UNIT C Unit 1 L 2 N 3 4 POWER SUPPLY 1 L 2 N POWER SUPPLY 1 L 2 N...

Page 21: ...e of main body and of remote controller sensor 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally CAUTION Select the position after counselling with a customer In case of cooling mode room temperature is controlled by the main body sensor To control the room temperature by a wired remote controller install controller room temp sensor to sense the temperat...

Page 22: ...according to the state of dampers by micom 2 Position F H Maximum E S P setting Fan speed doesn t vary according to the opening Closing of dampers 3 Position V L Minimum E S P setting Fan speed is varied according to the state of dampers by micom Maximum 4 mmAq Minimum 0 mmAq 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally TH R14H SW TH REMO MAIN 2TH O...

Page 23: ... set Room Temp MED LO AUTO JET Heater Defrost Filter Humidify Out door Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 3 4 FAN SPEED HI 1 Timer 1 2 3 5 4 Timer Procedure of RPM change Ex External Static pressure is 4mmAq for 24k To protect the unit compressor is designed to be off during E S P setting Push the On Off button The unit will start Push the Timer and Wind button simultaneo...

Page 24: ...uctuation of voltage air flow rate varies NOTICE Static Pressure mmAq Setting Value 0 1 2 3 4 Model Name Step Hi Med Lo 12 5 CMM 225 223 220 210 180 12k 10 CMM 242 240 238 236 235 8 5 CMM 251 250 249 248 247 16 5 CMM 165 161 158 156 153 18k 14 5 CMM 182 178 174 170 168 13 CMM 195 190 186 183 180 18 CMM 147 145 143 140 138 24k 16 5 CMM 159 156 153 152 149 14 CMM 180 177 174 171 169 ...

Page 25: ...P No MFL35865802 ...

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LG Multi F242CX, Installation Manual

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