LG LB-F4280HL User Manual

ENGLISHCEILING DUCT TYPE AIR CONDITIONERSINSTALLATION INSTRUCTIONS• Please read this instruction sheet completely before installing the product.• When

10Flared connection (Union)Flared connection(Service valve, Ball valve)Use a seemliness tubeFactory chargedIndoorOutdoorREFRIGERANT PIPINGINSTALLATION

ENGLISHOutdoorIndoorControl terminal boardControl boxControl box cover(On which the ElectricWiring Connection is put)Main terminal boardControl termin

123-1. Preparation of Piping3. Connecting Pipes to the Indoor UnitMain cause of gas leakage is defect inflaring work. Carry out correct flaring workin

ENGLISH6) Pipe bendingAnnealed copper pipe with small diameter (ø6.35 or ø9.52) can be easily bent manually. Inthis case, secure large R(radius) for t

1) Connecting the pipes to theOutdoor unit1. Align the center of the pipings andsufficiently tighten the flare nut withfingers.2. Finally, tighten the

ENGLISH1) Connecting cables to the Indoor Unit Connect the wires to the terminals on the control board individually according to theoutdoor unit con

3) Connecting the cable to theOutdoor Unit1. Remove the Cover control from the unitby loosening a screw.Connect the wires to the terminals onthe contr

ENGLISH4) Form the pipings 1. Wrap the connecting portion of indoorunit with the Insulation material andsecure it with two Plastic Bands. (for therigh

7. Air Purging of the Connecting Pipes and the Indoor Unit18Indoor unitOutdoor unitLiquid sideCLOSEOPENVaccum pumpGas sideClosedClosed2-way valve/3-wa

1.The following should be always observed for safety ...32. Installation of Indoor, Outdoor unit3. Connecting Pipes to the

ENGLISH31. The following should be always observed for safety• Please report to or take consent by the supply authority before connecting to the syste

4Indoor unitOutdoor unitBAMore than30cmMore than30cmMore than70cmSunroofFence orobstaclesH600600Top view(unit: mm)Front viewFrontInspection hole(600X6

ENGLISH2. Indoor unit installation Installation of UnitInstall the unit above the ceiling correctly.• Apply a joint-canvas between the unit andduct t

6• Select and mark the position for fixingbolts.• Drill the hole for set anchor on the faceof ceiling.• Insert the set anchor and washer ontothe suspe

ENGLISHCeilingCAUTION1~3mmDrainage holeDrainage holeMake sure to be closed.UnitDrainage pipe(Local supply)Thermal insulator(Local supply)Drainage hole

8• Drill the piping hole with 70mm dia, holecore drill.• Piping hole should be slightly slant to theoutdoor side.INSULATION, OTHERSInsulate the joint

ENGLISH9INSTALLATION OF REMOTE CONTROL BOXInstall the remote control boxand cord correctly.• Although the room temperature sensor is in the indoor uni