LG Electronics LCN240CP Adjusting air volume to the height of ceiling, Group Control, Procedure

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Installation

2) Adjusting air volume to the height of ceiling

You can choose the RPM(or air volume) of indoor motor according to the height of ceiling to supply the com- fortable atmosphere to consumers.

Procedure

1. Choose the selectable position in the table after measuring the height of ceiling.

Ceiling height

Mode of slide switch

Change of air volume

Remark

 

 

 

 

more than 3.3m(10.8ft)

High Ceiling

Increasing

Maunfactured in stan-

 

 

 

2.7~3.3m(8.9~10.8ft)

Standard

-

dard mode

 

 

 

less than 2.7m(8.9ft)

Low Ceiling

Decreasing

 

 

 

 

 

2. In the case of changing the height as "high" or "low", open the rear cover of the wired remote-controller.

3.Move the slide switch to the set position.

4.Close the rear cover and check if it works nomally.

1

2

3

Slide switch for ceiling height

1

2

3

1

2

3

3) Group Control

It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent.

Wiring design

Main PCB

Indoor Unit 1

 

Terminal(Local Supply)

 

 

Block

Connector

 

 

 

 

RED(12V)

RED(12V)

Main PCB

 

YL(SIGNAL)

YL(SIGNAL)

YL(SIGNAL)

BR(GND)

BR(GND)

#1

BR(GND)

Indoor Unit 2

Terminal(Local Supply)

Block

Connector

 

YL(SIGNAL)

Main PCB

BR(GND)

#2

 

....

Indoor Unit 16

 

 

Terminal(Local Supply)

 

 

Block

Connector

 

 

 

....

YL(SIGNAL)

YL(SIGNAL)

Main PCB

BR(GND)

BR(GND)

#16

 

 

 

Connecting Cable(Local Supply)

AUTO SWING

OPERATION

SET TEMP

FAN SPEED

SUB FUNCTION

 

 

 

Room Temp

HI

AUTO

Heater

Preheat

 

 

 

 

MED

JET

Defrost

Humidify

 

 

 

 

LO

 

Filter

Out door

 

 

 

Time

ZONE

 

1 2 3 4

Timer

Operation unit

Program set

 

 

 

 

On Off

 

 

 

 

 

 

 

Set no. Time

01

03 05 07

09 11 13

15 17

19

21

23

Wired Remote Controller

Single Control

S/W GR Group Control 1

Group Control 2

Remote

Controller

PCB

CAUTION

Using the supplied Wired Remote Controller, wire them like above.

Move S/W GR to "Group Control 1" position.

Check the line color of the wire.

Be careful not to exchange the color of wires.

The maximum length of connecting wire should be below 200m(656ft)(25) on connecting each units.

Use a wire more than 0.5mm2

Service Manual 31

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Contents Ceiling Cassette Air Conditioner Table of Contents Local model name Models ListIndoor units Outdoor unitsInstallation Safety PrecautionsDo not let electric parts of the product get wet Do not install, remove, or reDefective installation stand OperationalBe cautious that water could not enter the product Do not step on or put anyting on the product. outdoor units Keep level even when installing the productThinner Use two or more people to lift and transport the productFeatures & Benefits Two Thermistor Control Swirl SwingSpace Control Auto Restart OperationWater Drain Pump Time Delay Safety FunctionZero Standby Power High Ceiling OperationCeiling Cassette List of FunctionsWireless LCD Remote Control Function of Remote ControlNd F Button Wired LCD Remote Control Indoor unit type Ceilling Cassette 4way Model SpecificationsAT-C243HLFO AT-C343HLFO Model No. LCN240CP/LC240CPI/LCN340CP/LC340CPI Dimensional DrawingsModel No. LCU240CP/LC240CPO Model No. LCU340CP/LC340CPO Indoor Unit Wiring DiagramsLCU340CP/LC340CPO Outdoor UnitCooling Only Models Refrigerant Cycle DiagramsOutdoor Unit InstallationSelect the best location Indoor UnitSettlement of outdoor unit Indoor Unit Installation24k/34k Btu/h 1Ø Cooling & Heating type Wiring ConnectionAir conditioner unit Piping side Installation of Decoration PanelHeat Insulation Heat Insulation and pipingsDrain Piping of Ceiling Cassette Drain Pipe WorkDrain test Test running Precautions in Test RUNEvaluation of the performance Connection of power supplyTwo Thermistor System Optional OperationRemote Controller Adjusting air volume to the height of ceilingProcedure Wiring designCycle Troubleshooting Guide Troubleshooting GuideTrouble analysis Trouble Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller When cooling does not operate When indoor Fan does not operate Trouble 5 When Vertical Louver does not operate Self-diagnosis Function Indoor ErrorOutdoor Error Error IndicatorCheck Point Troubleshooting CH01, CH02, CH06Troubleshooting CH03 Troubleshooting CH04 Troubleshooting CH05, CH53 Troubleshooting CH24, CH25 Constant Troubleshooting CH32, CH33Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Troubleshooting CH51, CH60 Troubleshooting CH61, CH62 Way Valve Liguid Side Way Valve Gas Side Way ValveSet the liquid side valve to the closed position ProcedurePumping down Air purging of the charge hoseEvacuation Mount the valve caps and the service port capsAll amount of refrigerant leaked Connect the gauge to the charging cylinder Mount the valve stem nuts and the service port nutGas Charging After EvacuationMain P.C.B ASM Electronic Control DeviceModel No. LCN240CP/LCN340CP Exploded View and Replacement Parts ListDescription Remarks Parts ListModel No. LCU240CP Description Remarks LCU240CP / LC240CPO Model No Description Remarks LCU340CP / LC340CPO Model No. PT-CDC1 Description Remarks PT-CDC1 No A20911A

LCN240CP specifications

LG Electronics has long been a leading player in the home appliance market, renowned for its innovative approach to technology and design. One of its standout products is the LG LCN240CP, a state-of-the-art refrigerator that embodies the brand's commitment to quality and performance.

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