LG LB-C186HSA2 Installation Manual Download

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LG Ceiling Duct-Type
Air Conditioner

INSTALLATION MANUAL

MODELS: LB-C186HSA2

LB-C246HSA2
LB-C306GTA2
LB-C366GTA2
LB-C428GTA2
LB-C488RTA0
LB-C608RTA0

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.

• Please retain this installation manual for future reference

after reading it thoroughly.

Summary of Contents for LB-C186HSA2

Page 1: ... 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 Please retain this installation manual for future reference after reading it thoroughly ...

Page 2: ...ng Pipes and the Indoor Unit 23 Group Control 24 Two Thermistor system 24 E S P External Static Pressure Setting 25 How to Set E S P 26 External Static Pressure air Flow 27 Auto Function Setting 27 Checking the Power Cord 28 Installation Requirements Required Parts Required Tools Four Type A screws Connecting cable Level Screw driver Electric drill Hole core drill ø70mm Pipes Gas side 5 8 3 4 Liqu...

Page 3: ... 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 There is risk of fire or electric shock Install the panel and the co...

Page 4: ...oduct 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 very high and a door or a window is left open Moistur...

Page 5: ...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 on the product Corrosion particularly on the con...

Page 6: ...ents Piping Drain hose Connecting wire Control cover Air Intake side rear Connecting Wire Drain Hose Power Wire Connection Tube Air Outlet Vents 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 Introduction Symbols Used in this Manual Features ...

Page 7: ...n 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 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 space...

Page 8: ...Length A m Additional refrigerant g m Pipe Size Diameter Ø Standard 7 5 7 5 7 5 7 5 7 5 7 5 7 5 Standard 5 5 5 5 5 5 5 Max 30 30 30 30 30 30 30 Max 15 15 15 15 15 15 15 18K BTU h 24K BTU h 30K BTU h 36K BTU h 42K BTU h 48K BTU h 60K BTU h CAUTION If 48k Model is installed at a distance of 15m 450g of refrigerant should be added 15 7 5 x 60g 450g Capacity is based on standard length and maximun all...

Page 9: ...e 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 Drainage hole A B C 1 3 mm D G H I E F 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 CASE 2 POSITION OF CONSOLE BOLT Unit mm 18K BTU h 948 880 3...

Page 10: ...washer onto the suspension bolts for locking the suspension 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 CAUTION Tighten the nut and bolt to prevent unit falling 1 Set anchor Old building New building 2 Plate washer 3 Spring washer 4 Nut 5 Suspension bolts...

Page 11: ...lways 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 of the...

Page 12: ...ood Drain Is the drainage 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 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 suppl...

Page 13: ...bers 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 Remote cont...

Page 14: ...even segment 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 ...

Page 15: ...es may be 30Cm REFRIGERANT PIPING INSTALLATION OF OUT DOOR 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 Perform air purge with R 22 or vacuum drying When piping work...

Page 16: ... the cord clamper to fix the cord Perform the electrical wiring work according 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...

Page 17: ...avoid to let burrs drop in the tubing 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 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 Check Compare the flared work with f...

Page 18: ...raight 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 v...

Page 19: ...wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Checking the Drainage Remove the Air Filter 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...

Page 20: ...on the indoor unit 1 L 1 L 2 N 2 N 4 5 3 Terminals on the outdoor unit 1 L 2 N 4 5 3 POWER INPUT Terminals on the indoor unit 1 L 2 N Terminals on the outdoor unit 2 N 4 3 5 1 L POWER INPUT R S T N 220 240V POWER INPUT 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...

Page 21: ...om 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 the rated voltage marked on the name pl...

Page 22: ...taping along the exterior wall and fix it onto the wall by saddle or equivalent Tape the Pipings and Connecting cable from bottom to top Form the pipings gathered by taping along the exterior wall and make the trap prevent water from entering into the room Fix the pipings onto the wall by saddle or equivalent Drain hose Taping Pipings Connecting cable Power supply cord Trap is required to prevent ...

Page 23: ... 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 wrench 6 Tighten the valve stem nuts of the 2 way valve and 3 ...

Page 24: ...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 Using the supplied Wired Remote Controller wire them like above Move slide switch 2 to Group position Ensure that the color of wire Open the rear cover of Remote Controller to set up the mode Selectable options are t...

Page 25: ...ing 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 30k 36k 42k 10mmAq 48k 60k 15mmAq Minimum All 0mmAq Move the slide switch to set position Close the rear cover and check if it works norm...

Page 26: ...t no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 FAN SPEED HI 2 Time SUB FUNCTION SET TEMP OPERATION AUTO SWING Preheat ZONE Operation unit Program 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 2 Timer 1 2 3 5 4 Timer Push the On Off button The unit will start Push the Timer and Wind butt...

Page 27: ...25 245 255 180 205 225 220 240 255 174 199 219 215 235 250 162 191 215 205 230 245 154 189 210 200 220 240 140 180 205 190 215 235 90 155 193 180 210 230 5 138 180 160 200 225 1 110 171 LB C488RTA0 LB C608RTA0 External Static Pressure air Flow Auto Function Setting COMP OFF Low Airflow Low Airflow Low Airflow Setting Airflow Low Airflow Setting Airflow Medium Airflow Setting Airflow High Airflow F...

Page 28: ...le building Terminal block change Occurrence of strange noise from compressor No variation of pressure gages Troubles and Solutions Troubles Solutions Outdoor unit circuit Change the R S wires to the terminal block If the main cable for power supply is connected incorrect or wrong it shall cause strange noise from the compressor and cooling operation does not work ...

Page 29: ...Installation Manual 29 ENGLISH Memo ...

Page 30: ...30 Ceiling Duct Type Air Conditioner Memo ...

Page 31: ...P No 3828A20330X ...

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