LG JB-B2156QC Owners & Installation Manual Download Page 10

Page: 10 / 40

F). Outdoor Unit best location & piping.

The heat exchanger coils and panel vents of the
outdoor unit should be checked regularly. If clogged
with dirt or soot, the heat exchanger and panel vents
may be professionally steam cleaned.

Note:

Dirty or clogged coils will reduce the operating
efficiency of the system and cause higher

operating costs.

Outdoor Unit

Indoor Unit

Outdoor Unit

(Side)

(Rear)

Air outlet

vents

Air intake

vents

Connecting Wire

Connection Pipe
Drain Hose

Control Cover

(Rear)

(Side)

Air outlet

vents

Air intake

vents

Connecting Wire

Connection Pipe
Drain Hose

Control Cover

Model

Capacity

Indoor dimension

Outdoor Dimnesion

LB-B2156QC

1.5 TR

1180

575

190

800

260

555

590

305

LB-B2206QC

2 TR

1180

575

190

800

260

555

590

305

LB-B2256QC / LB-B2258QC

2.5 TR

1180

575

190

870

320

655

545

350

JB-B2156QC

1.5 TR

1180

575

190

870

320

655

545

350

JB-B2258QC

2.5 TR

1180

575

190

870

320

800

545

350

LMA36B2ALI

1.5x2 TR

1180

575

190

870

320

655

545

350

LMA48B2ALI

2.0x2 TR

1180

575

190

906

406

1135

606

465

LMA60B2ALI

2.5x2 TR

1180

575

190

906

406

1135

606

465

Summary of Contents for JB-B2156QC

Page 1: ...aining proper product maintenance and preventing improper use PRECAUTIONS Pay close attention to precautions in order to prevent potential hazards and damage from misuse or improper installation LG is not responsible for any damages caused by misuse of the product LG LowStaticHideAwayTypeAirConditioner OWNER S INSTALLATION MANUAL LG P No MFL62760202 ...

Page 2: ...rill ø70mm 1 Preparation of Piping 12 Pipes Gas side Liquid side Insulated drain hose Insulation materials FlaringTools set 1 Connecting the pipes to the Outdoor Unit 14 A Circuit Breaker Detail 16 Screw driver Hexagonal Wrench 4mm 5mm Gas leak Detector 2 4 3 12 14 14 16 Index Page No Selection of best location of indoor 04 Ceiling dimension Hanging blot detail 05 Filter convertible option 06 Drai...

Page 3: ...its 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 sh...

Page 4: ...ationship between the unit and suspension bolts Installation the ceiling opening to clean the filter or service under the product A Selection of the best location of Indoor Inspection hole 600 x 600 Control box H 20 or more Suitable dimension H is necessary to get a slooe to drain as aiven in the fiaure Side view unit mm 600 600 A Min B Min Ceiling Service Space A B Capacity Btu h A B 18 24 30k 60...

Page 5: ...575 93 190 21 1065 163 1100 Dimension Capacity Btu h A B C D E F G H I J C E G D A J B I F H Drainage hole Drain Pump use M10 Nut M10 washer X 4 X 4 M10 Nut M10 washer X 4 X 8 CASE 2 POSITION OF CONSOLE BOLT 5 Select and mark the position for fixing bolts Drill the hole for set anchor on the face of ceiling Insert the set anchor and washer onto the suspen sion bolts for locking the suspension bolt...

Page 6: ...el Rear C Filter convertible option 6 CAUTION Ceiling Drain Pump use Drainage hole Front of view 1 Install declination of the indoor unit is very important for the drain of the duct type air conditioner 2 Minimum thickness of the insulation for the connecting pipe shall be 19mm The unit must be horizontal or declined to the drain hose connected when finished installation ...

Page 7: ... 1 Never fail to have an individual power specialized for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control box cover 2 Provide a circuit breaker switch between power source and the unit 3 The screws which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected duri...

Page 8: ...ation 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 Insulation Is the unit fully insulated Ground Is the unit safely grounded THERMAL INSULATION TEST AND CHECK Make sure that there is no clearance here Overlap with thermal insulator for piping Thermal ins...

Page 9: ...tile substances Could damage the surfaces of the air conditioner Clean the filter with a vacuum or warm soapy water If very dirty wash with a solution of detergent in lukewarm water If hot water 50 C or more is used filter may be deformed After washing with water dry well in the shade Re install the air filter Air Filter The air filters behind Indoor unit the suction side should be checked and cle...

Page 10: ...n Pipe Drain Hose Control Cover H D W W H D L2 L1 Rear Side Air outlet vents Air intake vents L1 L2 Connecting Wire Connection Pipe Drain Hose Control Cover Model Capacity Indoor dimension Outdoor Dimnesion W D H W D H L1 L2 LB B2156QC 1 5 TR 1180 575 190 800 260 555 590 305 LB B2206QC 2 TR 1180 575 190 800 260 555 590 305 LB B2256QC LB B2258QC 2 5 TR 1180 575 190 870 320 655 545 350 JB B2156QC 1 ...

Page 11: ... installed at a distance of 15m 150g of refrigerant should be added 15 5 x 15g 150g 10cm Gas Liquid standard Max standard Max 1 5 TR 1 2 1 4 7 5 30 5 15 R 22 15gm 2 TR 5 8 1 4 7 5 30 5 15 R 22 20gm 2 5 TR 5 8 3 8 7 5 30 5 15 R 22 25gm LB B2156QC LB B2206QC Length A meter Model Additional Gas Charge Pipi Sizes Dia In Inch Capacity Elevation B meter 1 5 TR 5 8 3 8 7 5 80 5 35 R 410 30gm JB B2156QC J...

Page 12: ...ing 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 work with figure If flare is noted to b...

Page 13: ...azing 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 following 8 Refrigerant piping...

Page 14: ... sensor about 6 feet above the floor in an area with good air circulation at an average temperature Do not install the IR remote sensor where it can be affected by Drafts or dead spots behind doors and in corners Hot or cold air from ducts Radiant heat from sun or appliances Concealed pipes and chimneys Uncontrolled areas such as an outside wall behind the remote controller This IR remote sensor i...

Page 15: ...nsor cable is connected as factory default Fixate the IR Remote Sensor cable to the guide slot Use the screws for fixate the unit firmly on the wall Installation board Front side of installation board Rear side of installation board Bottom Wall Side Wall Side Wall Side Wall Side Wall Side Do not install the cable to be 10m or above It can cause communication error When installing the extension cab...

Page 16: ... adequately disconnect all supply lines must be fitted Capacity of circuit breaker Outdoor Indoor Main power source Switch box Circuit Breaker Warranty will be null void if wiring is not as per installation instructions Model Capacity 1 Phase 3 Phase LB B2156QC 25 NA LB B2206QC 25 NA LB B2256QC 32 NA LB B2258QC NA 20 JB B2156QC 25 NA JB B2258QC 1 5 TR 2 TR 2 5 TR 2 5 TR 1 5 TR 2 5 TR NA 20 A Circu...

Page 17: ...E NEUTRAL COMP GND PHASE NEUTRAL COMP GND 3ø415 V Power Supply NORMAL CROSS SECTIONAL AREA WIRE NO SPECIFICATION 1 2 3 7 8 9 10 11 2 3 5 mm 2 1 25 mm 5 CORE 3 CORE T1 T2 T3 RD WH BK COMP L1 L2 L3 A2 A1 T1 T2 T3 Magnetic Contactor BL YL RD RD 18 15 BL YL RD RD BK TERMINAL A 1 R 2 S 3 T MOTOR 1 ORANGE CAPACITOR 1 YELLOW BK TERMINAL C TERMINAL B 7 N G L 8 9 10 11 12 From Indoor Signal 3ø 415V Power S...

Page 18: ... 9 10 11 12 RD BR BK BL GREEN RD BK SIGNAL 1Ø 230V INPUT MAINS SUPPLY TO INDOOR FAN MOTOR1 R C S OR YL RD H C F CAP 1 BK BK R S COMP 1 C WH TB2 BK TB1 RD RD RD 8 2 0 1 4 6 BK BK BR GR YL BK RD TERMINAL BLOCK A 1 2 3 4 5 6 RD BR BK BL GREEN RD BK SIGNAL 1Ø 230V INPUT MAINS SUPPLY TO INDOOR OUTDOOR WIRING DIAGRAM OUTDOOR WIRING DIAGRAM TERMINAL A TERMINAL B 12 B 3Ø415 V POWER SUPPLY N G Y R TO INDOO...

Page 19: ...N PUMP is Optional SENSOR JUMPER SENSOR ASSY Indoor Wiring Diagram Model JB B2156QC R410 Gas Charge Model Outdoor Wiring Diagram Model JB B2156QC R410 Gas Charge Model 1ph 230V To Indoor 3 2 1 GR BR BL HP SWITCH 4 5 6 78 9 BR GR GR BL BR BL BL BR BL Magnetic Contactor A1 A2 L1 L2 T1 T2 BK T B1 BK T B2 WH OUT MOTOR OR GR GR C S R RD COMP YL BK H C F OUTDOOR WIRING DIAGRAM 3854A20372B FUSE 19 NOTE C...

Page 20: ...agram Model JB B2258QC R410 Gas Charge Model Outdoor Wiring Diagram Model JB B2258QC R410 Gas Charge Model TERMINAL B L N G S N To Indoor 1Ø 230V From Indoor R S 2 1 3 6 5 4 1 2 3 T TERMINAL A 3Ø 415V Power Supply RD WH BK T2 COMP T1 T3 T2 Magnetic Contactor L1 T1 L2 L3 T3 A1 A2 TERMINAL C MOTOR 1 ORANGE CAPACITOR YELLOW RD RD BK RD YL BL BK YL BL 3854A20396B RD BL RD RD RD BK BK 3ø MONITORING REL...

Page 21: ...outdoor unit should be with the following specifications CAUTION 20mm GN YL NORMAL CROSS SECTIONAL AREA 1 25mm2 18 24K 20mm GND Capacity 18 24 K BTU h 1 Phase 2 5mm2 NORMAL CROSS SECTIONAL AREA Make sure that the screws of the terminal are free from looseness WARNING 18 24 30K BTU h Applied Model LB B2156QC LB B2206QC LB B2256QC JB B2156QC 1 Input 1 phase power supply into outdoor wire specificati...

Page 22: ...connected to the indoor and outdoor unit should be with the following specifications CAUTION Capacity 30K BTU h 3 Phase 2 5mm2 NORMAL CROSS SECTIONAL AREA Make sure that the screws of the terminal are free from looseness WARNING 1 Input 3 phase power supply into outdoor cable specification 4 core 2 5 sq mm2 Separable Earthing Wire 1 2 3 R Y GND 2 For connection between of Indoor and Outdoor unit w...

Page 23: ...with the following specifications CAUTION 20mm GN YL NORMAL CROSS SECTIONAL AREA 1 25mm2 36 48K 20mm GND Capacity 36 48 K BTU h 1 Phase 2 5mm2 NORMAL CROSS SECTIONAL AREA Make sure that the screws of the terminal are free from looseness WARNING 36 48K BTU h Applied Model LMA36B2ALI LMA48B2ALI 1 Input 1 phase power supply into outdoor wire specification 2 For connection between of Indoor and Outdoo...

Page 24: ...availible from the manufacturer of its service agent The connecting cable connected to the indoor and outdoor unit should be with the following specifications CAUTION Capacity 60K BTU h 3 Phase 2 5mm2 NORMAL CROSS SECTIONAL AREA Make sure that the screws of the terminal are free from looseness WARNING 1 Input 3 phase power supply into outdoor cable specification 4 core 2 5 sq mm2 Separable Earthin...

Page 25: ...ring 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 plate 7 Confirm that the cable thickness is as sp...

Page 26: ...o 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 26 In case of the Outdoor unit being installed below position of the Indoor unit In case of the Outdoor Unit being installed abo...

Page 27: ...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 28: ...ndard 6 LG COMP POWER FILTER TIMER ON OFF 4 2 5 3 1 Signal Recepter 28 LG COMP POWER FILTER TIMER ON OFF Forced Operation Use the ON OFF button when remote control is not available TIMER Lights up during timer operation Signal Receptor Receives the signal from remote control signal receiving sound switch on one long beep FILTER SIGN Lights up after 240 hours from the time of first power on operati...

Page 29: ...B Remote Control Preparation 29 ...

Page 30: ...on Cooling Model Heat Pump Model Your unit shall have either Type A or Type B Remote Control ON Signal transmitter Flip up door closed 2 4 5 1 3 ON Signal transmitter Flip up door closed 2 4 5 1 3 JET COOL A SWING POWER TEMP FAN SPEED MODE TYPE A TYPE B 6 6 30 4 INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low medium high or CHAOS JET COOL Used to start or stop the speed coolin...

Page 31: ...ation See page 38 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating See page 39 5 ROOMTEMPERATURE CHECKING BUTTON Used to check the room temperature 6 7 8 8 RESET BUTTON Used prior to resetting time or after replacing batteries ON OFF CANCEL SET 3 4 6 1 2 7 5 Flip up door opened Signal transmitter 3 4 6 1 2 7 5 Flip up door opened Signal transmitter JET COOL A SWING ...

Page 32: ...door of the remote controller Set the temperature lower than the room temperature The temperature can be set within a range of 18 C 30 C at intervals of 1 C Set the fan speed again with the door of the remote controller still closed You can select the fan speed in 3 steps low medium high Each time the button is pressed the fan speed mode is shifted 1 2 3 4 Cooling operation A SWING POWER TEMP FAN ...

Page 33: ... you want to change the set temperature press the Room Temperature Setting buttons The cooler or warmer you feel the more times up to two times you should press the button The set temperature will be changed automatically During Auto Operation You cannot control the indoor fan speed It has already been set by the Fuzzy rule If the system is not operating as desired manually switch to another mode ...

Page 34: ...ification mode on the operation selection button the product starts to run the dehumidification function It automatically sets the room temp and airflow volume to the best condition for dehumidification based on the sensed current room temp In this case however the setting temp is not displayed on the remote controller and you are not able to control the room temp either During the healthy dehumid...

Page 35: ... Close the door of the remote controller Set the temperature higher than the room temperature The temperature can be set within a range of 18 C 30 C at intervals of 1 C Set the fan speed again with the door of the remote controller still closed You can select the fan speed in Three steps low medium high Each time the button is pressed the fan speed mode is shifted 1 2 3 4 ON ON MODE A SWING POWER ...

Page 36: ...on mode selection button airflow volume selection temp setting button or the JET COOL button again NOTICE Press the Start Stop button The unit will respond with a beep Press the Jet Cool button to operate the speed cooling mode and the unit will operate at super high fan speed on cooling mode for 30 minutes To cancel the Jet Cool mode press the Jet Cool buttons 1 2 3 A SWING POWER TEMP FAN SPEED J...

Page 37: ...tions printed blue color under buttons Check the indication of 2nd function on the display of the remote controller 2nd function disappears in a short time automatically or when the button is pressed again 1 2 3 For more details refer to functions next pages JET COOL A SWING POWER TEMP FAN SPEED MODE SLEEP CANCEL TIMER ON OFF SET FAN ROOM TIMER ON OFF CANCEL SET 37 ...

Page 38: ...g the batteries you should press the reset buttons to reset the time Press the Start Stop button 2 Press 2nd F button and check if 2nd F icon is on 3 Press the Time Setting buttons until the desired time is set 4 Press the Timer SET button Check the indicator for A M and P M NOTICE 1 Make sure the time is set correctly on the display of the remote controller 2 Press 2nd F button 3 Press the ON OFF...

Page 39: ...y for 3 seconds once you listen beep sound remove your hand Note 1 Forced operation button location varies with model Use for ON OFF the unit in case of remote misplace LG COMP POWER FILTER TIMER ON OFF Error Diagnosis Sr No ERROR CODE DIAGNOSIS 1 2 3 4 5 CH 01 CH 02 CH 05 CH 04 Check room thermistor Check pipe thermistor CN Pipe In Check Option PCB EPROM Check float sensor Jumper DESCRIPTION Reco...

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