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ENGLISH

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LG Concealed Duct
Air Conditioner

INSTALLATION MANUAL

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.

Содержание LB-C306GSS0

Страница 1: ...tely 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 ...

Страница 2: ...6 Group Control 28 Two Thermistor system 28 E S P External Static Pressure Setting 29 How to Set E S P 29 External Static Pressure air Flow 31 Checking the Power Cord Test Running 32 Installation Guide at the Seaside 33 Installation Requirements Required Parts Required Tools Four Type A screws Connecting cable Level Screw driver Electric drill Hole core drill ø70 mm Pipes Gas side 5 8 3 4 Liquid s...

Страница 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...

Страница 4: ...ure 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 Moisture may condense and wet or damage furniture Do not store or use flammable gas or combustibles near the product There is risk of fire or failure of product Take care to ensure that power cable could not be pulled out or damaged during operation There is...

Страница 5: ...ve the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock When the product is soaked flooded or submerged contact an Authorized Service Center There is risk of fire or electric shock Be cautious that water could not enter the product There is risk of fire electric shock or product damage Ventilate the product from time to time...

Страница 6: ...ld damage the neighborhoods It may cause a problem for your neighbors 90 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 condenser and evaporator fins could cause product malfunction or inefficient operation Do not...

Страница 7: ...eaning or maintaining the product Be careful and avoid personal injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn or explode If the liquid from the batteries gets onto...

Страница 8: ...cover Side Rear Air outlet vents Air intake vents Connecting Wire Drain Hose Connection Pipe Control Cover Air intake vents Piping Drain hose Connecting wire Control cover 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 Ma...

Страница 9: ... 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 spaces indicated by arrows from the wall ceiling fence or other obstacles Take the weight of the air conditioner int...

Страница 10: ...nce 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 30 kBtu h 15 88 mm 5 8 6 35 mm 1 4 7 5 50 5 30 45 36 kBtu h 1Ø 15 88 mm 5 8 6 35 mm 1 4 7 5 50 5 30 60 36 kBtu h 3Ø 15 88 mm 5 8 6 35 mm 1 4 7 5 50 5 30 40 42 kBtu h 19 05 mm 3 4 9 52 mm 3 8 7 5 50 5 30 60 48 kBtu h 19 ...

Страница 11: ... 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 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...

Страница 12: ...sher 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 ...

Страница 13: ...w 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 of ...

Страница 14: ... 03 kcal m hr C NOTICE After all workings are finished check the working and operation Air distribution Is the air circulation good 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 Overla...

Страница 15: ...ers 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 Remote co...

Страница 16: ...en 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 05...

Страница 17: ...he remaining three sides may be 30 cm 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 R22 or vacuum d...

Страница 18: ...he 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 fitted Capacity of circui...

Страница 19: ...p 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 figure If flare is note...

Страница 20: ...ight 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 val...

Страница 21: ...g 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 Liquid side piping Smaller Dia Gas side piping Bigger Dia Torque wrench Outdoor unit Outside Diameter Torque m...

Страница 22: ... type Terminals on the indoor unit 1 L 2 N 4 5 3 Terminals on the outdoor unit 1 L 2 N 4 5 3 Terminals on the indoor unit 1 L 2 N 4 5 3 Terminals on the outdoor unit 1 L 2 N 4 5 3 30 36 kBtu h 1Ø Cooling only type Cooling Heating type 2 N 3 4 5 1 L 4 N 3 L Terminals on the outdoor unit Terminals on the indoor unit POWER INPUT 220 240 V 1 L 2 N 5 2 N 3 4 5 1 L 4 N 3 L Terminals on the outdoor unit ...

Страница 23: ... agent The connecting cable connected to the indoor and outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approved by HAR or SAA CAUTION 20 mm GN YL 20 mm GN YL NORMALCROSS SECTIONA AREA 0 75 mm2 30 36 42 kBtu h 1 25 mm2 48 60 kBtu h NORMAL CROSS SECTIONAL AREA Capacity 30 kBtu h 36 kBtu h 42 kBtu h 48 kBtu h 60 kBtu h 1 Phase 5 5 mm2 5 5 mm2 3 Phase ...

Страница 24: ...irm 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 plate 7 Confirm that the cable thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following trou...

Страница 25: ...ing 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 Trap is required to prevent water from entering into electrical parts Seal a small opening a...

Страница 26: ... gauges and dry nitrogen gas cylinder to this service port with charge hoses CAUTION Be sure to use a manifold valve for leakage test If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P S I G Next ...

Страница 27: ...ontinue to vacuumize over 10 minutes more 2 When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump Finishing the job 1 With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve 2 Turn the valve stem of gas side valve counter clockwise to fully open the valve 3 Loosen the charge hose connected to the g...

Страница 28: ...L 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 th...

Страница 29: ...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 30 kBtu h H P 10 mmAq 30 kBtu h C O 36 42 kBtu h 8 mmAq 48 60 kBtu h 15 mmAq Minimum All 0 mmAq Move the slide switch to set position Close the rear cover and check if it works normally CA...

Страница 30: ...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 1 Timer 1 2 3 5 4 Timer Push the On Off button The unit will start Push the Timer and Wind button...

Страница 31: ...173 190 230 245 253 205 225 235 180 205 225 150 175 190 230 245 253 199 219 230 174 199 219 148 175 190 150 235 250 191 215 220 162 191 215 130 170 190 1 230 248 189 210 215 154 189 210 1 155 190 180 205 210 140 180 205 155 193 200 90 155 193 138 180 190 5 138 180 110 171 185 1 110 171 CMM Static Pressure mmAq Setting Value Model Name Step Hi Med Lo LB H306GSS0 LB C306GSS0 LB C366GSS0 LB H366GSS0 ...

Страница 32: ...vice valve 2 Measure the temperature of the intake and discharge of air 3 Ensure the difference between the intake temperature and the discharge is more than 8 C 4 For reference the gas side pressure of optimum condition is as below Cooling If the actual pressure are higher than shown the system is most likely over charged and charge should be removed If the actual pressure are lower than shown th...

Страница 33: ... 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 the opposite side of the sea wind direction 2 In case to install the outdoor unit on the seaside set...

Страница 34: ...34 Concealed Duct Air Conditioner Memo ...

Страница 35: ...P No 3828A20573L ...

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