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LG Ceiling Duct-Type
Air Conditioner

INSTALLATION MANUAL

LG

IMPORTANT

• Please read this installation 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.

ENGLISH

ESPAÑOL

Содержание AUUH306C

Страница 1: ...this installation 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 ENGLISH ESPAÑOL ...

Страница 2: ...of the Connecting Pipes and the Indoor Unit 21 Group Control 22 Two Thermistor System 22 E S P External Static Pressure Setting 23 How to set E S P 24 Installation guide at the seaside 25 Four Type A screws Connecting cable Pipes Gas side 1 2 5 8 3 4 Liquid side 1 4 3 8 1 2 Insulated drain hose Insulation materials Additional Drain hose Inner Dia 25 mm Level Screw driver Electric drill Hole core d...

Страница 3: ... Be sure to follow the instruction WARNING 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 ...

Страница 4: ...ectric 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 Do not let the air conditioner run for a long time when the humidity is...

Страница 5: ...hen installing the product To avoid vibration or water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors 90 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...

Страница 6: ...ct 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 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals ...

Страница 7: ...pacity is based on standard length and maximum allowance length is on the basis of reliability Improper refrigerant charge may result in abnormal cycle Oil trap should be installed every 10 meters Gas Liquid Standard Max Standard Max 7 5 50 5 30 35 7 5 50 5 30 35 1 4 6 35 mm 7 5 50 5 30 35 1 2 12 7 mm 1 4 6 35 mm 1 2 12 7 mm 1 4 6 35 mm 5 8 15 88 mm Capacity Pipe Size Length A m Elevation B m Addi...

Страница 8: ...er drainage A place where the 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...

Страница 9: ...sion bolts 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 CAUTION Local supply Set anchor Plate washer M10 Spring washer...

Страница 10: ...view Always lay the 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 ...

Страница 11: ...rainage smoothly and no sweating Gas leakage Is the piping connection correctly Wiring Is the wiring connection correctly Lock bolt Is the lock bolt of compressor loosened THERMAL INSULATION TEST AND CHECK 5 7 mm Indoor Outdoor WALL Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal insulator for refrigerant pipe Local supply Thermal insulator for piping Lo...

Страница 12: ...numbers are matched on unit side and remote controller side Main board CN REMO The maximum length of the cord is 100 m If the length of the cord exceeds 50 m use a wire size greater than 0 5 mm2 Remote controller CN REMO Remote control box body Lever carefully the box open using a screw driver etc Front case The lower part Face of wall Upper notch Upper flange Under plate Remote control cord Remot...

Страница 13: ...itioner can get good ventilation A place where it shall not annoy the neighbors A place where the unit shall be leveled and that can support the weight of unit and withstand its vibrations Keep a maintenance space Above 700 mm Above 300 mm Outdoor unit Above 300 mm Above 500 mm Face of wall Use two spanners when connect the refrigerant pipe to the unit Make a bend with a radius as large as possibl...

Страница 14: ...ng to the electrical wiring connection All wiring must comply with local requirements Select a power source that is capable of supplying the current required by the air conditioner Use a recognized circuit breaker between the power source and the unit A disconnection device to adequately disconnect all supply lines must be fitted Capacity of circuit breaker WIRING CONNECTION OUTDOOR UNIT Remove th...

Страница 15: ...ove flare nuts attached to indoor and outdoor units than put them on pipe tube having completed burr removal 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 If flare is noted to be defective cut off the ...

Страница 16: ...aight pipes generally using ready made sockets While brazing protect piping against heat with wet cloth to avoid damaging valve packing or burning thermal insulator with burner heat While brazing blow inert gas nitrogen gas or carbonic gas to prevent formation of oxidation film in copper piping otherwise the refrigerant circuit will clog The blowing of nitrogen gas or carbonic gas through 3 way va...

Страница 17: ... the direction for tightening follows the arrow on the wrench 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 Torque wrench Outdoor unit Gas side piping Bigger Dia Liquid side piping Smaller Dia Outside Diameter mm inch Ø6 35 Ø9 52 Ø12 7 Ø15 88 Ø19 05 1 4...

Страница 18: ...try of the power supply cord to the middle of live pin on the power plug should be over 1 8m Make sure that the screws of the terminal are free from looseness WARNING Cooling Heating type The power cord connected to the outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approved by HAR or SAA If the supply cord is damaged it must be replaced by a speci...

Страница 19: ... 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 voltage is maintained at more than 90 percent of th...

Страница 20: ... by taping along the exterior wall and fix it onto the wall by saddle or equivalent 2 Tape the Pipings and Connecting cable from bottom to top 3 Form the pipings gathered by taping along the exterior wall and make the trap prevent water from entering into the room 4 Fix the pipings onto the wall by saddle or equivalent In case of the Outdoor unit being installed below position of the Indoor unit I...

Страница 21: ...er connecting the piping check the joints for gas leakage with gas leak detector 3 Remove the service port nut and connect the gauge manifold and the vacuum pump to the service port by the charge hose 4 Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg 5 Remove the valve stem nuts and fully open the stems of the 2 way and 3 way valves with a hexagon ...

Страница 22: ...ime Off 01 03 05 07 09 11 13 15 17 19 21 23 Indoor Unit 1 Terminal Local Supply Block Terminal Local Supply Block Terminal Local Supply Block Main PCB 1 Main PCB 2 Main PCB 16 Wired Remote Controller Standard Indoor Unit 2 Main PCB Indoor Unit 16 Connector RED 12V YL SIGNAL BR GND RED 12V YL SIGNAL BR GND YL SIGNAL BR GND Connecting Cable Local Supply Connector Connector YL SIGNAL BR GND YL SIGNAL...

Страница 23: ... 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 24 kBtu h 6 mmAq Minimum 0mmAq 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 OP7 R18H R17H OP6 LO STAND SW HIGH H...

Страница 24: ...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 2 Timer 1 2 3 5 4 Timer Procedure of RPM change Ex External Static pressure is 4mmAq for Model Name LB H2460RH 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 simultaneously...

Страница 25: ...ide 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 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 t...

Страница 26: ...P No MFL38509406 After reading this manual keep it in a place easily accessible to the user for future reference Printed in Korea ...

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