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INSTALLATION OF UNIT

17

ENGLISH

5

Please connect indoor unit and remote controller using connection cable.

6

Please use extension cable if the distance between wired remote controller and the product is
more than 10m(32.8ft).

<Meaning of wire color>

Please check if connector is normally connected.

Connecting cable

Product

side

When installing the wired remote controller, do not bury it in the wall. 
(It can cause damage in the temperature sensor.) 

Do not install the cable to be 50m(164ft) or above. 
(It can cause communication error.)

• When installing the extension cable, check the connecting direction of the connector of the

remote controller side and the product side for correct installation.

• If you install the extension cable in the opposite direction, the connector will not be

connected.

• Specification of extension cable: 2547 1007 22# 2 core 3 shield 5 or above.

• Apply totally enclosed noncombustible conduit in case of local building code Requiring

plenum cable usage.

CAUTION

!

12V

Red

Signal

Yellow

GND

Black

1,MFL67445803,영영  2018. 2. 19.  영영 5:00  Page 17

Summary of Contents for AK-Q240BC01

Page 1: ...ng the product 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 www lg com Copyright 2012 2018 LG Electronics Inc All Rights Reserved ENGLISH ESPAÑOL PORTUGUÊS 1 MFL67445803 영영 2018 2 19 영영 5 00 Page 1 ...

Page 2: ...or many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You can find them on a labe...

Page 3: ...re 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 cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit...

Page 4: ...e gas and open a window for ventilation before turn the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the circuit breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the prod...

Page 5: ...se 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 let the air conditioner run for a long time when the humidity is very high and a door or...

Page 6: ...13 Condensate Drain Piping 13 Filter Installation 13 Down flow filter bracket installation guide 15 Installation of Remote Controller Accessory 19 Electronic Wiring 20 Field Wiring 24 Connect the cable to the Product 26 Dip Switch Setting in Indoor Main PCB 26 Group Control 27 Evaporator Fan Adjustment 28 Trial Run Mode 29 Self Diagnosis Function 34 Starting the Unit 35 Final Installation Checklis...

Page 7: ...s 10 12 5 15 RT Front View Return Air outlet vents Control access panel Compressor access panel Supply Motor Access Panel Air outlet vents Drain Hole Air intake vents Rear View INTRODUCTION 1 MFL67445803 영영 2018 2 19 영영 5 00 Page 7 ...

Page 8: ... Features 20 23 25 RT Front View Return Air outlet vents Control access panel Compressor access panel Supply Motor Access Panel Air outlet vents Drain Hole Air intake vents Rear View 1 MFL67445803 영영 2018 2 19 영영 5 00 Page 8 ...

Page 9: ...EARANCE 860mm CLEARANCE 1 160mm CLEARANCE 860mm CLEARANCE 1 160mm C A E D B Tool 10 12 5 15 RT A 484 19 1 16 B 864 34 1 32 C 482 18 31 32 D 206 8 1 8 E 126 4 31 32 F 913 35 15 16 G 130 5 1 8 H 800 31 1 2 CLEARANCE 860mm CLEARANCE 1 160mm CLEARANCE 860mm CLEARANCE 1 160mm E F D C A B H G Figure 1A Figure 1B Figure 1C Tool 10 12 5 15 RT A 484 19 1 16 B 427 16 13 16 C 482 18 31 32 D 642 25 9 32 E 92 ...

Page 10: ...ol 20 23 25 RT A 616 24 1 4 B 678 26 11 16 C 655 25 25 32 D 60 2 3 8 E 125 4 29 32 F 882 34 23 32 G 115 4 17 32 H 860 33 27 32 CLEARANCE 860mm CLEARANCE 1 160mm CLEARANCE 860mm CLEARANCE 1 160mm E F C A B H G D Figure 1A Figure 1B Tool 20 23 25 RT A 655 25 25 32 B 457 18 C 616 24 1 4 D 196 7 23 32 E 116 4 9 16 F 882 34 23 32 G 116 4 9 16 H 860 33 27 32 H G F E A B C D TOP VIEW RETURN RETURN SUPPLY...

Page 11: ...nd Rigging Rig the unit using either belt or cable slings The sling eyelet must be placed through the lifting holes in the base rail of the unit The point where the slings meet the lifting eyelet should be at least 1 8m above the unit Use spreader bars to prevent excessive pressure on the top of the unit during lifting Roof Mounted Unit On new roofs the curb should be welded directly to the roof d...

Page 12: ... barrier The outside ductwork must be weather proofed between the unit and the building When attaching ductwork to a horizontal unit provide a flexible water tight connection to prevent noise transmission from the unit to the ducts The flexible connection must be indoors and molded out of heavy canvas Change Airflow Horizontal flow to Down flow Conversion 1 Remove the covers from the down flow ope...

Page 13: ... convenient drain system 3 Trapped 4 Must not be connected to closed drain system Filter Installation This Unit Filters are anti bacteria and washable type The filter is placed in the flange connected on the return opening It can be removed by opening the cover plate on the side of the flange The flange can be detached and connected to the bottom return opening when down flow installation is requi...

Page 14: ...14 INSTALLATION OF UNIT ENGLISH 3 Fit the filter TOP View 4 Use a screw to connect the Bracket_2 to Bracket_3 TOP View Filter Bracket_2 Bracket_3 1 MFL67445803 영영 2018 2 19 영영 5 00 Page 14 ...

Page 15: ...se insert wired remote controller connection cable to the CN REMO in indoor PCB or connect directly local connection cable to terminal block in control box It should be use supplied local connection cable permitted in each national standard 10 12 5 15RT Use when needed CN REMO Remote controller connection 1 MFL67445803 영영 2018 2 19 영영 5 00 Page 15 ...

Page 16: ...ooves 2 1 3 2 3 Wall Side Wall Side Connecting order Wall Side Wall Side Separating order 16 INSTALLATION OF UNIT ENGLISH 2 Please fix tightly using provided screw after placing remote controller setup board on the place where you like to setup Please set it up not to bend because poor setup could take place if setup board bends Please set up remote controller board fit to the reclamation box if t...

Page 17: ... temperature sensor Do not install the cable to be 50m 164ft or above It can cause communication error When installing the extension cable check the connecting direction of the connector of the remote controller side and the product side for correct installation If you install the extension cable in the opposite direction the connector will not be connected Specification of extension cable 2547 10...

Page 18: ...te controller 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 remote controller is equipped with a seven segment LED display For proper display of the remote controller LED s the remote controller shoul...

Page 19: ...allation manual If power supply circuit has a lack of capacity or electric work deficiency it may cause an electric shock or fire The circuit diagram is not subject to change without notice Be sure to connect wires according to the circuit diagram Connect the wires firmly so that not to be pulled out easily Connect the wires according to color codes by referring the circuit diagram If the supply c...

Page 20: ... leakage without connection to pipe Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally R...

Page 21: ...thout connection to pipe Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the ...

Page 22: ... consists of the equipment utilizing the multiple power sources If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase may break the compressor and other parts CAUTION R L1 S L2 T L3 Switch ELCB Power supply 3 Phase 3 Wires 60...

Page 23: ...rated manner because this system consists of the equipment utilizing the multiple power sources If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase may break the compressor and other parts CAUTION R L1 S L2 T L3 Switch ELCB...

Page 24: ...ect the wires to the terminals on the control board individually as the following 2 Secure the cable onto the control board with the holder clamper 3 Refix the cover control to the original position with the screw 4 Use a recognized circuit breaker between the power source and the unit A disconnection device to adequately disconnect all supply lines must be fitted The power source must be supplied...

Page 25: ...te 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness 7 Do not install an earth leakage circuit breaker in a wet or moist area 8 The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point fuse breaking disturbance of the normal function of the ov...

Page 26: ...that the color of wire If the main PCB is not directly connected to the wired remote controller set the Dip switch 3 in the main PCB as ON position OFF Master ON Slave Please connect with same type unit Single Package If there were connected with different type Indoor unit It is can not operate some functions Indoor Unit 1 Terminal Local Supply Block Terminal Local Supply Block Terminal Local Supp...

Page 27: ...pproximates total system external static pressure Then locate the appropriate airflow rate on CMM for your unit The value obtained represents the break horsepower for the evaporator fan motor and the fan RPM The indoor fan speed is changed by opening or closing the adjustable motor sheave See Figure 8 NOTE Fan Break Horsepower BkW listed in the Table is the percentage range of nameplate amperage t...

Page 28: ...up down wind flow control wind direction start stop button 4 If pressing button long for 3 seconds it enters into remote controller setter setup mode If pressing once shortly it enters into user setup mode Please press more than 3 seconds for sure Please cancel the right and left of wind direction for RAC product 1 Setup figure 01 blinks at the lower part of indication window 2 To Increase Belt Te...

Page 29: ...Only System is turned off by Slave high pressure switch 2 5 1 Master Unit Input Voltage High Low Voltage Master Unit input voltage is abnormal 2 Slave Unit Input Voltage High Low Voltage For 20 23 25RT Only Slave Unit input voltage is abnormal 2 6 1 Master Inverter Compressor Start Failure The First Start Failure by Master Inverter Compressor Abnormality 2 Slave Inverter Compressor Start Failure F...

Page 30: ...tion for 3 minutes in condition less than differential pressure 400kPa 4 0 1 Master Inverter Compressor CT Sensor Fault Master Inverter Compressor CT Sensor open or short 2 Slave Inverter Compressor CT Sensor Fault For 20 23 25RT Only Slave Inverter Compressor CT Sensor open or short 4 1 1 Master Inverter Compressor Discharge Temperature Sensor Fault Master Inverter Compressor Discharge Temperatur...

Page 31: ...on boarding 2 Slave Communication Error with Inverter Controller For 20 23 25RT Only Slave Controller part cannot receive inverter control signals usually happens after on boarding 5 9 2 Series Installation Error For 20 23 25RT Only Different capacity of the EEPROM 6 0 1 Inverter PCB EEPROM Error of Master Access Error of Inverter PCB of Master 2 Inverter PCB EEPROM Error of Slave For 20 23 25RT O...

Page 32: ...T Only Slave Fan Current is over 10A 7 9 1 Master Fan Start Failure Error Master Fan First Position Sensing Failure 2 Slave Fan Start Failure Error For 20 23 25RT Only Slave Fan First Position Sensing Failure 8 6 1 Master Main PCB EEPROM Error Communication Fail between Master Main MICOM and EEPROM or omitting EEPROM 2 Slave Main PCB EEPROM Error For 20 23 25RT Only Communication Fail between Slav...

Page 33: ...tlet pipe Temperature Sensor Error For 20 23 25RT Only Eva outlet pipe Temperature Sensor open or short 1 5 1 1 Failure of operation mode conversion at Master Pressure unbalance between Masters 2 Failure of operation mode conversion at Slave For 20 23 25RT Only Pressure unbalance between Slaves 1 7 3 1 Master Constant Speed Compressor Fault Comp locking Check Valve leakage comp dielectric break do...

Page 34: ... of the suction line valves Check the suction pressures and compare them to the normal operating pressures about from 700 1000kPa With the compressor operating check the line voltage at the unit The voltage should be within the range shown on the unit nameplate If low voltage is encountered check the size and length of the supply line from the main disconnect to the unit The line may be undersized...

Page 35: ... fins stroke the coil surface with a soft bristled brush Keep all vegetation away from the condenser coil area Routine Maintenance By Owner Is the condenser fan and indoor blower operating correctly with proper rotation and without undue noise Have voltage and running currents been checked to determine if it is within limits Have the air discharge grilles been adjusted to balance the system Has th...

Page 36: ...elt inspect wear and tension every three months to determine whether to replace 2 Condenser coils For cleaning 3 Safety Controls For mechanical cleaning 4 Electrical components and wiring For possible replacement or connection tightness 5 Condensate drain For cleaning 6 Inspect the unit duct connections to ensure they are physically sound and sealed to the unit casing 7 Inspect the unit mounting s...

Page 37: ...ete to prevent the sea wind from the sea The height and width should be more than 150 of the outdoor unit It should be keep more than 70 cm of space between outdoor unit and the windbreak for easy air flow CAUTION Air conditioners should not be installed in areas where corrosive gases such as acid or alkaline gas are produced Do not install the product where it could be exposed to sea wind salty w...

Page 38: ...INSTALLATION OF UNIT 38 ENGLISH 1 MFL67445803 영영 2018 2 19 영영 5 01 Page 38 ...

Page 39: ... México S A de C V Sor Juana lnés de la Cruz No 555 Col San Lorenzo Industrial Tlalnepantla de Baz Estado de México C P 54033 Tel 55 5321 1919 Página web http www lg com mx 1 MFL67445803 영영 2018 2 19 영영 5 00 Page 300 ...

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