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Indoor Unit

Installation

Mixture connection with indoor units and Fresh Air Intake Unit

In case of connecting with standard indoor unit and Fresh Intake Unit, separate Fresh Air Intake
Unit with standard units.

(Because setting temperature are different.)

Other than those, it is same with Group Control 1.

GND
Signal
12 V

LGAP Network System

Display Error Message

FAU

Master

FAU

Slave

Master

Slave

FAU

Standard

FAU

Standard

FAU

* FAU : Fresh Air Intake Unit
Standard: Standard Indoor Unit

3. Group Control 3

Содержание CEA Series

Страница 1: ... performed in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly INSTALLATION MANUAL AIR CONDITIONER P NO MFL42803120 http www lghvac com www lg com Copyright 2010 2018 LG Electronics Inc All Rights Reserved ENGLISH FRANÇAIS ESPAÑOL ...

Страница 2: ... 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...

Страница 3: ... Specified torque wrenches different depending on model No o Spanner Half union o A glass of water o Screw driver o Hexagonal wrench o Gas leak detector o Vacuum pump o Gauge manifold o Owner s manual o Thermometer Safety Precautions 4 Introduction 7 Installation Selection the best location 8 Preparation of Piping 10 Plumbing materials and stor age methods 12 Drain piping work 14 How to connect wi...

Страница 4: ...ates the possibility of injury or damage to properties only Be sure not 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 produ...

Страница 5: ...ized Service Center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand It may cause injury accident or damage to the product 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 Use a vacuum pump or Inert ...

Страница 6: ...r hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it 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...

Страница 7: ...el Air Filter Air Inlet Air Inlet Air filter At Air Inlet Remote Controller TEMP This symbol alerts you to the risk of electric shock This symbol alerts you to hazards that could cause harm to the air conditioner This symbol indicates special notes NOTICE Symbols Used in this Manual Features CEA CFA Type CEU CFU Type ...

Страница 8: ...nclined Where nothing blocks the air passage Where condensate can be properly drained Where sufficient clearance for installation and maintenance can be ensured Where there is no possibility of flammable gas leakage Where optimum air distribution can be ensured Where piping between indoor and outdoor units is possible within the allowable limit Refer to the installation manual of the outdoor unit ...

Страница 9: ...ws Both left and right 3 Lift the front panel of the unit To close perform the procedure in opposite order 1 Use the installationmount for installation Check whether the wall is strong enough to bear the weight of the unit or not if there is a risk reinforce the wall before installing the unit 2 The unit requires a minimum 100 mm clearance on the underside for air intake Also ensure the unit is le...

Страница 10: ...laring work using flaring tool as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 4 Check n Compare the flared work with figure below n If flare is noted to be defective cut off the flared section and do flaring work again Main cause of gas leakage is defect in flaring work Carry out correct flaring work in the following procedure Copper tube 90 Slante...

Страница 11: ...ntil the shaft contacts the main body seal 3 Make sure to tighten the cap securely For the tightening torque refer to the table on the below CAUTION Always use a charge hose for service port connection After tightening the cap check that no refrigerant leaks are present When loosening a flare nut always use two wrenches in combination When connecting the piping always use a spanner and torque wren...

Страница 12: ...not cold and warm Clogging of EEV Capillary Gas shortages Degradation of refrigerant oil Poor insulation of the compressor Do not cold and warm Countermeas ure No moisture in the pipe Until the connection is completed the plumbing pipe entrance should be strictly controlled Stop plumbing at rainy day Pipe entrance should be taken side or bottom When removal burr after cutting pipe pipe entrance sh...

Страница 13: ...ld not block the outlet side When the internal pressure in pipe is above the atmospheric pressure pinhole is occurred and it is a leakage cause CAUTION 1 Always use the nitrogen not use oxygen carbon dioxide and a Chevron gas Please use the following nitrogen pressure 0 02MPa Oxygen Promotes oxidative degradation of refrigerant oil Because it is flammable it is strictly prohibited to use Carbon di...

Страница 14: ... referrig to the figure Fasten both ends with clamps Installation Indoor unit Thermal insulator accessory Fastening band accessory Insulation for fitting accessory For liquid piped Insulation for fitting accessory For gas piped liquid pipe Refrigerant piping Clamp 6 4 accessory HEAT INSULATION Drain piping work Drain piping must have downward 1 50 to 1 100 be sure not to provide up and down slope ...

Страница 15: ...re that the screws of the terminal are free from looseness How to connect wirings Remove the electric parts Box cover and connect the wiring Power Supply wiring ground wiring Field wiring Transmission wiring Field wiring WARNING Loose wiring may cause the terminal to overheat or result in unit malfunction A fire hazzard may also exist Therefore be sure all wiring is tightly connected Connection me...

Страница 16: ... 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 rated voltage marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 In a wet or moist area always install an...

Страница 17: ...nd wiring you must use round pressure terminals 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 For wiring use the designated power wire and connect firmly then secure to prevent outside...

Страница 18: ...re Do not install the remote controller where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Uncontrolled areas such as an outside wall behind the remote controller This remote controller is equipped with a seven segment LED display For proper display of the remote controller LED s t...

Страница 19: ...n Console Region selection Etc N A Default N A Default Selection of Master or Slave Selection of Dry Contact Mode Fan continuous operation N A Selection of Ventilator link age Selection of up down side Vane Selection tropical region Spare Master Wired Wireless remote controller Selection of Manual or Auto operation Mode Continuous operation Removall Linkage Removal Up side Down side Vane General m...

Страница 20: ...nly connect serial signal and GND lines between slave indoor unit LGAP Network System No 3 Off No 3 On The Master indoor unit is possible to recognize Dry Contact and Central Controller only In case of Central controller and Group controller at the same time it is possible to connect standard 2series indoor units or later since Feb 2009 In case of Central controller setting the Central controller ...

Страница 21: ... LGAP Network System 6 In case of Group Control it is possible to use following functions Selection of operation options operation stop mode set temperature Control of flow rate High Middle Low It is not possible at some functions Master Slave setting of indoor units be set possible using a PCB Dip Switch It is possible to connect indoor units since Feb 2009 In the other cases please contact LGE I...

Страница 22: ...ate Fresh Air Intake Unit with standard units Because setting temperature are different Other than those it is same with Group Control 1 GND Signal 12V LGAP Network System Display Error Message FAU Master FAU Slave Master Master Master Slave FAU Standard Standard FAU FAU Standard Standard FAU FAU Fresh Air Intake Unit Standard Standard Indoor Unit 3 Group Control 3 ...

Страница 23: ...of indoor unit function Maximum 2wired remote controllers can be connected with 1 indoor unit LGAP Network System Display Error Message Master Master Slave Wired remote controller 2 Indoor unit 1 4 2 Remote Control Installation Slave Master Master PZCWRC G3 Master Slave PZCWRC 2 Indoor unit 2 EA Wired remote controller PZCWRCG3 cable used for connection PZCWRC2 cable used for connection Indoor uni...

Страница 24: ...24 Indoor Unit ...

Страница 25: ...ase call the installing contractor of your product as warranty service will be provided by them CANADA Service call Number 888 LG Canada 888 542 2623 Numéro pour les appels de service LG Canada 1 888 542 2623 ...

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