LG LB-E4881HL Installation Instructions Manual Download

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ENGLISH

CEILING DUCT TYPE AIR CONDITIONERS

INSTALLATION INSTRUCTIONS

• Please read this instruction sheet completely before installing the product.
• When the power cord is wanted to replace, replacement work shall be performed by authorized

personnel only.

• Installation work must be performed in accordance with national wiring standards by authorized

personnel only.

P/No.: 3828A20021G

Air filters(Optional)

Remote Controller

Air intake vents

(Side)

(Rear)

Air intake vents

Air outlet vents

Piping
Drain hose

Connecting wire

Control cover

Air outlet vents

(Side)

(Rear)

Air outlet

vents

Air intake

vents

Connecting Wire

Drain Hose

Connection Pipe

Control Cover

(Side)

(Rear)

Air intake
vents

Air outlet vents

Piping

Drain hose

Control cover

Connecting wire

Indoor Unit

Outdoor Unit

ENGLISH

Summary of Contents for LB-E4881HL

Page 1: ...med in accordance with national wiring standards by authorized personnel only P No 3828A20021G Air filters Optional Remote Controller Air intake vents Side Rear Air intake vents Air outlet vents Piping Drain hose Connecting wire Control cover Air outlet vents Side Rear Air outlet vents Air intake vents Connecting Wire Drain Hose Connection Pipe Control Cover Side Rear Air intake vents Air outlet v...

Page 2: ...ssure Air Flow 20 OUT LINE OF INSTALLATION Installation works Installation Parts Required tools 1 Selection of the best location 4 2 Indoor unit installation 5 Four Type A screws Connecting cable Level Screw driver Electric drill Hole core drill ø70mm 1 Preparation of Piping 12 Pipes Gas side 1 2 5 8 3 4 Liquid side 1 4 3 8 1 2 Insulated drain hose Insulation materials Flaring Tools set 1 Connecti...

Page 3: ... units securely and attach the wires firmly to the terminal board connecting sections so the stress of the wires is not applied to the sections Incomplete installation could cause injury due to fire electric shock the unit falling or a leakage of water Consult the dealer from whom you purchased the unit or special installer Incomplete installation could cause a personal injury due to fire electric...

Page 4: ...wning 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 Following descriptions are for the Top Discharge Type outdoor unit 120Cm clearance req...

Page 5: ... 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 C 1 3 mm D G H I E F A B C D E F G H I 18K BTU h 942 880 466 54 575 30 87 750 186 24K BTU h 942 880 466 54 575 30 87 750 186 30K BTU h 1242 1180 492 54 600 30 87 830 186 1072 1010 492 54 600 30 87 750 186 1242 1180 492 54 600 30 8...

Page 6: ...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 M10 Nut W3 8 or M10 Suspension ...

Page 7: ...ward 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 duct type air conditioner 2 ...

Page 8: ... 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 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 crip for thermal ...

Page 9: ...de 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 unit Tapping screw Loca...

Page 10: ... and that can support the weight of unit and withstand its vibrations Keep a maintenance space One side must be 90Cm for service Two of the remaining three sides may be 30Cm Use two spanners when connect 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 check all joints Add refrigerant if piping...

Page 11: ...mper 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 fitted Capac...

Page 12: ... 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 flared section and do flaring work again Copper tub...

Page 13: ... 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 described in the followin...

Page 14: ...ng 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 4 Connecting Pipes to the Outdoor Unit 5 Checking the Drainage 14 Liquid side piping Smaller Dia Gas side piping Bigger Dia Torque wrench Outdoor unit Pipe size Torque 1 4 ...

Page 15: ...minals on the outdoor unit 4 N 5 6 3 L 1 L 2 N 4 N 5 6 7 8 3 L 4 N 5 6 7 3 L Terminals on the indoor unit 1 2 4 5 3 Cooling Heating type Terminals on the indoor unit Terminals on the outdoor unit Terminals on the outdoor unit 1 2 4 5 3 1 L 2 N POWER INPUT R S T N The power cord connected to the outdoor unit should be complied with the following specifications Rubber insulation type H05RN F approve...

Page 16: ...hem 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 plate 7 Confirm that the cable thickness is as specified in the power sources specificatio...

Page 17: ...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 17 In case of the Outdoor unit being installed below position of the Indoor unit In case of the Outdoor Unit being installed ...

Page 18: ...d 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 the stems of the 2 way and 3 way valves...

Page 19: ... wire housing for standard motor housing for higher external static Pressure 15mmAq 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 11 13 15 17 19 21 23 Indoor Unit 1 Terminal Local Supply Block Terminal Local Supply Block Terminal L...

Page 20: ...4 62 50 48 5 46 46 Med 49 5 48 46 44 42 40 40 5 Low 43 5 42 40 5 38 5 37 35 33 5 LB D1861HL CL LB D2461HL CL LB E4881HL CL LB E6081HL CL LB F3061HL CL LB F3661HL CL LB F3681HL CL LB F4261HL LB F4281HL 1 The above table shows the correlation of External Static Pressure AIR FLOW 2 Duct work must be designed within the range of on installing the unit 3 Change the wiring diagram referring to page 19 o...

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