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LG
Air Conditioner

INSTALLATION MANUAL

website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html

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.

Содержание L2-C366BA0

Страница 1: ...chsup html 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 ...

Страница 2: ...le 19 Air Purging 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 Level gauge Screw driver Electric drill Hole core drill ø50mm Horizontal meter 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 dri...

Страница 3: ... Manual 3 Installation Parts Provided Standard Type Air filters Optional Air outlet vents Air intake vents Remote Controller Side Rear Air intake vents Air outlet vents Piping Drain hose Control cover Connecting wire Indoor Unit Outdoor Unit ...

Страница 4: ...serious injury This symbol indicates the possibility of injury or damage WARNING Be sure not to do Be sure to follow the instruction Safety Precautions 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 disa...

Страница 5: ...on always contact the dealer or an Authorized 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 pe...

Страница 6: ...s may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage Keep level even when 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 ...

Страница 7: ...e 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 or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles 3 Piping length and the elevation Indoor unit Outdoor uni...

Страница 8: ...de as a figure for easy water 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...

Страница 9: ... 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 Local supply Set anchor Plate washer M10 Spring washer M10 Nut W3 8 or M10 Suspension bolt W3 8 or M10 CAUTION Tigh...

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: ...th and no sweating Gas leakage Is the piping connection correct Wiring Is the wiring connection correct Lock bolt Is the lock bolt of compressor loosened THERMAL INSULATION TEST AND CHECK 5 7mm 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 Local supply Hose cli...

Страница 12: ...al numbers are matched on unit side and remote controller side Main board CN REMO The maximum length of the cord is 100m If the length of the cord exceeds 50m use a wire size greater than 0 5mm2 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: ...ment LED 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...

Страница 14: ... its vibrations Keep a maintenance space One side must be 90Cm for service REFRIGERANT PIPING INSTALLATION OF OUTDOOR UNIT Perform the work according to the Service Manual or Installation Guide Select a location that satisfies the following conditions Install the unit firmly in place Use two spanners when connecting the refrigerant pipe to the unit Make a bend with a radius as large as possible Pe...

Страница 15: ...or unit Remove screws Use the cord clamper to fix the cord Perform the electrical wiring work according to the electrical wiring connection WIRING CONNECTION OUTDOOR UNIT Remove the control cover for wiring connection Use the cord clamper to fix the cord Earthing work Connect the cable of diameter 1 6mm2 or more to the earthing terminal provided in the control box and do earthing Please check Mode...

Страница 16: ... to avoid to let burrs drop in the tubing 3 Putting nut on Remove 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 w...

Страница 17: ...ipes 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 valves is...

Страница 18: ... nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure 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 Outdoor unit Torque wrench Gas side piping...

Страница 19: ... 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 In case of the Outdoor Unit being installed above position of the Indoor Unit Drain hose Taping Pipings Connecting cable Power supply cord Trap is required to prevent water f...

Страница 20: ... 4 N 5 6 7 Terminal on the INDOOR UNIT B UNIT 3 L 4 N 5 6 7 4 N 5 A 5 B Terminal on the INDOOR UNIT A UNIT 3 L 4 N 5 6 7 Terminal on the INDOOR UNIT B UNIT 3 L 4 N 5 6 7 3 L 4 N 5 3 L 4 N 5 Power cord 36K Btu h 48K Btu h CAUTION After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power specialized for the air conditioner As for the method...

Страница 21: ...e gas side valve are set to the closed position 2 After 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 th...

Страница 22: ...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 BR GND YL SIGNAL BR GND Remote Controller PCB Single Group Slide Switch2 Open the rear cover of Remote Controller to set up the mode Selectable options are three as follows Remo Sensing the room Temperature Indoor Unit S...

Страница 23: ...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 18K 24K 8mmAq Minimum All 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 O...

Страница 24: ... 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 Model Name L2NC246BRA0 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 bu...

Страница 25: ...i Med Lo 235 245 254 220 235 250 230 238 252 205 230 240 225 235 248 190 220 235 215 230 245 50 200 230 180 215 240 1 16 5 CMM 100 15 CMM 210 Table 1 Note 1 Be sure to set the value refering table 1 Unexpected set value will cause mal function 2 Table 1 is based at 230V According to the fluctuation of voltage air flow rate varies L2NC186BMA0 L2NC246BRA0 ...

Страница 26: ...26 Multi Type Ceiling Duct Air Conditioner Memo ...

Страница 27: ...P No 3828A20433A ...

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