LG GBUH186HSS0 Installation Manual Download Page 1

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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.

Summary of Contents for GBUH186HSS0

Page 1: ...e 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: ... 26 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 ø70mm Pipes Gas side 5 8 3 4 Liquid ...

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

Page 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...

Page 5: ...he 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 whe...

Page 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...

Page 7: ...n cleaning 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 ...

Page 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...

Page 9: ...rce 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 ...

Page 10: ...n abnormal cycle Oil trap should be installed every 10 meters Gas Liquid Standard Max Standard Max 30k Btu h 15 88 5 8 6 35 1 4 7 5 50 5 30 50 36k Btu h 1Ø C O 15 88 5 8 9 52 3 8 7 5 50 5 30 35 36k Btu h 3Ø 15 88 5 8 6 35 1 4 7 5 50 5 30 40 48k Btu h 19 05 3 4 9 52 3 8 7 5 50 5 30 70 60k Btu h 19 05 3 4 12 7 1 2 7 5 50 5 30 Capacity Pipe Size Length A m Elevation B m Additional Diameter Ø refriger...

Page 11: ...at 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 1282 1230 477 56 590 30 120 1006 29...

Page 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 ...

Page 13: ...s 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 duc...

Page 14: ...3 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 Overlap ...

Page 15: ... 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 control ...

Page 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...

Page 17: ...FRIGERANT 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 is finished chec...

Page 18: ...rform 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 circuit breaker ...

Page 19: ...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 figure If flare is n...

Page 20: ...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...

Page 21: ...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 Liquid side piping Smaller Dia Gas side piping Bigger Dia Torque wrench Outdoor unit Pipe size kgf m ...

Page 22: ...1 L 2 N 3 4 R POWER INPUT POWER INPUT 380 415V 3N 50Hz POWER INPUT 220 240V 50Hz S T N Therminals on the outdoor unit Therminals on the outdoor unit Therminals on the outdoor unit 1 L 2 N 3 380 415V 3N 50Hz Therminals on the indoor unit 1 L 2 N 3 R POWER INPUT S T N Therminals on the outdoor unit 1 L 2 N 3 380 415V 3N 50Hz Heating Pump type Therminals on the indoor unit 1 L R S T N 2 N 3 1 L 2 N 3...

Page 23: ... 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 20mm GN YL 20mm GN YL NORMALCROSS SECTIONA AREA 0 75mm 2 30 36 42k 1 25mm2 48 60k NORMAL CROSS SECTIONAL AREA 20mm GN YL 20mm GN YL 1 Phase 1P 3 Phase 3P4W Cooling Only Heat Pump CAUTION Make sure that the screws of the te...

Page 24: ...firm 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 tro...

Page 25: ...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 aroun...

Page 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 ...

Page 27: ...nue 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 gas s...

Page 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...

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

Page 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...

Page 31: ...13 0 459 255 255 255 255 Hi 18 0 636 241 230 200 1 Med 16 5 583 249 243 231 192 Lo 14 0 494 255 255 255 246 Hi 28 0 988 255 254 250 243 216 Med 26 0 918 255 255 255 251 237 Lo 24 0 847 255 255 255 255 249 Hi 32 0 1130 245 238 225 205 1 Med 29 0 1024 253 250 245 235 208 Lo 26 5 935 255 255 255 251 237 Hi 40 1412 Med 35 1235 237 230 223 215 205 195 Lo 30 1058 253 248 242 235 226 216 Hi 50 1764 168 1...

Page 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...

Page 33: ...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 the o...

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

Page 35: ...P No 3828A22234H ...

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