LG LCN380CP, LCU240CP, LCU380CP, LCN240CP Service Manual

LG

Ceiling Cassette
Air Conditioner

SERVICE MANUAL

LG

CAUTION

website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html

• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

2 Ceiling Cassette Air Conditioner

TABLE OF CONTENTS

Table of contents Page

1. Models List .......................................................................................................................3

2. Safety Precautions ...........................................................................................................4

3. Feature & Benefits ...........................................................................................................8

4. List of Functions .............................................................................................................11

5. Function of Remote Control ...........................................................................................12

6. Specifications .................................................................................................................14

7. Dimensional Drawings ...................................................................................................16

8. Wiring Diagrams.............................................................................................................20

9. Refrigerant Cycle Diagrams ...........................................................................................22

10. Installation ....................................................................................................................23

11. Trouble Shooting Guide................................................................................................33

12. (3-Way)Valve ................................................................................................................49

13. Electronic Control Device.............................................................................................53

14. Exploded View and Replacement Parts List ................................................................54

Models List

Service Manual 3

Nominal Capacity

Indoor Units Outdoor Units Power Supply

Btu/h Type Model Name Model Name Ø,V,Hz

24K Ceiling Cassette LCN240CP LCU240CP

1Ø, 208-230V, 60Hz

38K Ceiling Cassette LCN380CP LCU380CP

1.1 Cooling Only

Models List

Safety Precautions

4 Ceiling Cassette Air Conditioner

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must
be followed.

■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.

■ Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

■ Installation

Be sure not to do.

Be sure to follow the instruction.

Do not use a defective or under­rated circuit breaker. Use this
appliance on a dedicated circuit.

• 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 and breaker.

• Improper wiring or installation may
cause fire or electric shock

Use the correctly rated break­er or fuse.

• There is risk of fire or electric
shock.

Do not modify or extend the
power cable.

• There is risk of fire or electric
shock.

Safety Precautions

Service Manual 5

■ Operational

Do not install, remove, or re­install the unit by yourself
(customer).

• There is risk of fire, electric shock,
explosion, or injury.

Be cautious when unpacking
and installing the product.

• Sharp edges could cause injury.
Be especially careful of the case
edges and the fins on the con­denser and evaporator.

For installation, always con­tact the dealer or an
Authorized Service Center.

• There is risk of fire, electric shock,
explosion, or injury.

Do not install the product on a
defective installation stand.

• It may cause injury, accident, or
damage to the product.

Be sure the installation area
does not deteriorate with age.

• If the base collapses, the air condi­tioner could fall with it, causing
property damage, product failure,
and personal injury.

Do not let the air conditioner
run for a long time when the
humidity is very high and a
door or a window is left open.

• Moisture may condense and wet or
damage furniture.

Do not touch(operate) the
product with wet hands.

• There is risk of fire or electrical
shock.

Do not place a heater or other
appliances near the power
cable.

• There is risk of fire or electric
shock.

Do not let electric parts of the
product get wet.

• There is risk of fire, failure of the
product, or electric shock.

Safety Precautions

6 Ceiling Cassette Air Conditioner

■ Installation

Do not open the inlet grill of the product during
operation. (Do not touch the electrostatic filter,
if the unit is so equipped.)

• There is risk of physical injury, electric shock, or prod­uct failure.

Be cautious that water could not enter the
product.

• There is risk of fire, electric shock, or product damage.

Always check for gas (refrigerant) leakage after
installation or repair of product.

• Low refrigerant levels may cause failure of product.

Install the drain hose to ensure that water is
drained away properly.

• A bad connection may cause water leakage.

Do not store or use flammable gas or com­bustibles near the product.

• There is risk of fire or failure of product.

If strange sounds, or small or smoke comes
from product. Turn the breaker off or discon­nect the power supply cable.

• There is risk of electric shock or fire.

Gasolin

Safety Precautions

Service Manual 7

Keep level even when installing the product.

• To avoid vibration or water leakage.

Use two or more people to lift and transport
the product.

• Avoid personal injury.

Use a soft cloth to clean. Do not use harsh
detergents, solvents, etc.

• There is risk of fire, electric shock, or damage to the
plastic parts of the product.

Do not touch the metal parts of the product
when removing the air filter. They are very
sharp!

• There is risk of personal injury.

Do not step on or put anyting on the product.
(outdoor units)

• There is risk of personal injury and failure of product.

Do not insert hands or other objects through
the air inlet or outlet while the product is oper­ated.

• There are sharp and moving parts that could cause
personal injury.

90˚

Wax

Thinner

■ Operational

8 Ceiling Cassette Air Conditioner

Features & Benefits

Environment Friendly Refrigerant :

- LG Ceiling Cassette Air Conditioners uses environ­ment friendly refrigerant, which don't do any harm to
the environment.

Plasma Air Purifier :

- It removes not only microscopic contaminants &
dust, but also house mites, pollen, and pet fur to help
preventing allergic diseases like asthma.It provides
odor free, dust free and allergy free air.

Group Control :

- It enables to control as much as 16 units with the
help of one wired remote controller. All the units will
follow same setting of temperature & other sub func­tions.

Central Control :

- It enables to control 16 x 8 = 128 units with the help
of 8 controllers. All units can be put on and off from
one Central Room. For Setting Temperature, Fan
Speed and other sub functions, access the respec­tive LCD wired remote controller of each unit.

Jet Cool :

-In this mode, quick and fast cooling is done. Cold and

high velocity air is supplied to the room till the indoor
temperature reaches 18°C. The unit will continue to
run in jet cool mode till the Indoor temperature reach­es 18°C.

12 16........

........

IonizerPre-filter

Dust particles

dusts

Odour

Dust
electrode
discharge

Odor molecule

+6.5KV
discharge

aluminum coated
electrode(-)
(3.25KV discharge)

Generating

plasma

+

+

+

+

+

Dusts Collection

Polluted
Air

Purified
fresh Air

Main
PCB

Controller

# 1

Controller

# 2

Controller

# 8

M

1

Sub

1

M

2

Sub

2

M

16

Sub

16

M

17

Sub

17

M

18

Sub

18

M

128

Sub
128

Features & Benefits

Swirl Swing

- It is the function for comfort cooling/heating operation.

- The diagonal two louvers are opened the
more larger than the other louvers.
After one minute, it is opposite.

Space Control

Vanes angle can be controlled by pair, considering its
installation environment.

- For example direct drafts can be annoying, leading
to discomfort and reduced productivity vane control
helps to eliminate this problem.

- Easily controlled by wired remote control.

- Air Flow can be controlled easily regarding any
space environment.

Auto Restart Operation :

- Whenever there is electricity failure to the unit, and after resumption of the power, unit will start in the same
mode prior to the power failure. Memorized condition are on / off condition, operating mode (cooling/heating),
set temperature and fan speed.The unit will memorize the above conditions and start with same memorized
condition.

Two Thermistor Control :

- There may be a significant difference between the temperature taken at the installed product and indoor tem­perature. Two thermistor control provides option to control temperature by referring any of the two tempera­tures. With the help of the slide switch at the back of the LCD wired remote controller, selection of the desired
thermistor for controlling the unit can be done. One thermistor is in the Indoor unit & the other one is in the
LCD wired remote.

Service Manual 9

Features & Benefits

71

Vane 2

Swirl Swing(New)4- Open(Conventional)

Swirl Swing(New)4- Open(Conventional)

2.4% 4.8%100% Improved

Comparison of Air Flow Types

Comparison of Floor
Temp. Distribution(20°C)

Vane 1 Close OpenOpen

Open

Open

Open

Close CloseOpen

Vane 3 Close Open Close CloseOpen

OpenOpen Close CloseOpen

Vane 2

OpenOpen

Time

Close CloseOpen

Vane 4

Vane 1

Vane 3

Vane 2

Time

Vane 4

Vane 3

Vane 4

Vane 1

10 Ceiling Cassette Air Conditioner

Features & Benefits

High Ceiling Operation

- According to the height of ceiling installation, it pro­vides variability of indoor fan motor rpm. If the height
of installation is low then you can adjust low rpm of
indoor fan motor. On the other hand if the height of
the installation is high you can adjust high rpm of
indoor fan motor. Selection of speed can be done by
slide switch at the back of the LCD wired remote.

ex:

Water Drain Pump :

- In some of the places natural drainage is not possi­ble. For such places drain pump is very useful. It
removes condensed water from the unit.

Time Delay Safety Function :

- It delays restarting of the compressor by three min­utes thereby preventing damage to the compressor.

Zero Standby Power:

- Due to SMPS (Switching Modulation Power Supply)
technology, there is almost zero power consumption
in the standby mode.

Child Lock Function:

-It prevents the children or others from tampering the

control buttons. Unit can be controlled by the wireless
remote controller. This can be easily set by pressing
timer key & Min key simultaneously. After child lock is
set, pressing any key will displaye CL on the LCD for
3 seconds and all the keys will be ineffective.

Self Diagnosis Function:

- This function provides diagnosis of the unit. An
error code will be displayed on the LCD wired
remote controller & diagnosis can be done as per
the code indication. The same is also printed on
key cover of the LCD wired remote controller.

5~6W

Others LG

0.5W

CHILD LOCK

-Display

Selection Height RPM

Lower 2.4m 700/600/500

Standard 2.7m 750/650/550

Higher 3.0m 800/700/600

Service Manual 11

List of Functions

• Ceiling Cassette

Model Ceiling Cassette

Features

Air Discharge Outlet 4 4
Airflow Direction control (left & right) - ­Airflow Direction control (up & down) Auto Auto
Airflow Steps(Fan / Cool /Heat) 3/4/- 3/4/­Auto Changeover - ­Auto Operation o o
Auto Restart Operation o o
Auto Swing o o
Central Control Accessory Accessory
CHAOS Wind (Auto wind) - ­Child Lock Function o o
Cooling & Fan Operation o o
Coolling, heating & Fan Operation - ­Defrost / Deicing - ­Deodorizing Filter - ­Drain Pump o o
E.S.P. Control - ­Electric Heater - ­Energy Saving Gold Fin - ­Environment Friendly Refrigerant o o
Fire Alarm Function - ­Forced Operation o o
Group Control o o
High Ceiling Operation o o
Hot Start - ­Jet Cool - ­Low Ambient Control - ­Plasma Air Purifier Optional Optional
Prefilter(Washable / Anti-fungus) o o
Restart Delay (3-minutes) o o
Self Diagnosis o o
Sleep Mode o o
Soft Dry Operation o o
Swirl Swing o o
Tele Control - ­Temperature Control o o
Test Function o o
Time Delay Safety function o o
Timer (weekly) o o
Two Thermistor Control o o
Space Control o o
Wired LCD Remote Controller o o
Wireless Remote Controller o o
Zero Standby Power o o
Zone Control - -

LC240CP LC380CP

Notes :

O : Basic

Optional : Factory-Installed

Accessory : Field-Installed

- : Not available on this system

List of Functions

12 Ceiling Cassette Air Conditioner

Function of Remote Control

1. Wireless LCD Remote Control

Function of Remote Control

Cooling Operation

Auto Operation

Healthy Dehumidification Operation

Operation Mode

ON

OFF

CANCEL

SET

°C/°F

AUTO CLEAN

1

3

5

4

9

10

12

18

16

7

2

8

13

15

11

6

Flip-up door
(opened)

Signal transmitter

17

14

1. START/STOP BUTTON

Operation starts when this button is pressed and
stops when the button is pressed again.

2. OPERATION MODE SELECTION BUTTON

Used to select the operation mode.

3. ROOM TEMPERATURE SETTING BUTTONS

Used to select the room temperature.

4. INDOOR FAN SPEED SELECTOR

Used to select fan speed in four steps
low, medium and high.

5.

JET COOL

Used to start or stop the speed cooling.(speed cooling
operates super high fan speed in cooling mode.)

6. AUTO SWING BUTTON

Used to stop or start louver movement and set the
desired up/down airflow direction.

7. ON/OFF TIMER BUTTONS

Used to set the time of starting and stopping opera­tion.

8. TIME SETTING BUTTONS

Used to adjust the time.

9. TIMER SET/CANCEL BUTTON

Used to set the timer when the desired time is
obtained and to cancel the Timer operation.

10. SLEEP MODE AUTO BUTTON

Used to set Sleep Mode Auto operation.

11. AIR CIRCULATION BUTTON

Used to circulate the room air without cooling.

12. ROOM TEMPERATURE CHECKING BUTTON

Used to check the room temperature.

13. PLASMA AIR CLEAN BUTTON

Used to start or stop the plasma-purification func­tion.

14. HORIZONTAL AIRFLOW DIRECTION CONTROL
BUTTON (OPTIONAL)

Used to set the desired horizontal airflow direction.

15. RESET BUTTON

Used prior to resetting time.

16. 2nd F Button

Used prior to using modes printed in blue at the bot­tom of buttons.

17. AUTO CLEAN (OPTIONAL)

Used to set Auto Clean mode.

18. °C/°F SWITCH BUTTON

Used to switch temperature reading from Centigrade
to Fahrenheit.

❈ The wireless remote controller do not operate the swirl mode.❈ The wireless remote controller do not operate the swirl mode.

Service Manual 13

Function of Remote Control

Timer Cancel 2ndF

Program Week

Hour Min

Holiday

Set/Clr

RESET

Plasma

Operation unit

Humidify

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

3

10

12

14

15

11

13

18

16

2

1

5

4

8
9

7

17

1234

ZONE

2ndF

No Func

AUTO
JET
SLo

1 Operation display

Displays the operation conditions.

2 On/Off Button

Operation starts when this button is pressed, and
stops when the button is pressed again.

3 Set Temperature Button

Used to set the temperature when the desired tem­perature is obtained.

4 FAN Operation Button

Used to circulate room air without cooling.

5 Fan Speed & Jet Cool Button

Used to set the desired fan speed and select jet
cool mode.

6 Operation Mode Selection Button

Used to select the operation mode.

• Auto Operation Mode

• Cooling Operation Mode

• Soft Dry Operation Mode

7 Auto Swing Button

Used to swing up and down.

8 Room Temperature Checking Button

Used to check the room temperature.

9 Plasma Air Clean Button

Used to start or stop the plasma-purification function.

10 Timer Cancel Button

Used to cancel the timer.

11 Timer Set Button

Used to set the timer when the desired time is
obtained.

12 Week Button

Used to set a day of the week.

13 Program Button

Used to set the weekly timer.

14 Holiday Button

Used to set a holiday of the week.

15 Time Set Button

Used to set the time of the day and change the
time in the weekly timer Function.

16 Set and Clear Button

Used to set and clear the weekly timer.

17 Swirl Button

Used to select swirl swing mode.

18 Reset Button

Used to set the current time and clear the setting
time.

2. Wired LCD Remote Control

❈ The wireless remote controller do not operate the swirl

mode.

14 Ceiling Cassette Air Conditioner

3 * 2.1

4 * 2.1
1 / 4 (6.35)
1 / 2 (12.7)

7.5

30/15

ø25

-

7,034(6,048)

24000

-

-

2500

11.5

1, 208-230, 60

93

2.81(2.42)

9.6

-

-

18~30(64-86)

3.3

Capillary Tube

LCN240CP
LCU240CP

PT-CFC

Cooling Capacity

W(kcal/h)

Btu/h

Heating Capacity

W(kcal/h)

Btu/h
Input Cooling/Heating W
Running Current Cooling/Heating A
Power Supply ø,V,Hz
Power Factor %

E.E.R Cooling

W/W(kcal/hW)

Btu/hW

C.O.P Heating

W/W(kcal/hW)

Btu/hW
Setting Temperature Range(cool/heat) °C
Dehumidification Rate l/h
Refrigerant Control
Refrigerant Charge g(oz), type

System

Indoor Unit
Outdoor Unit
Decoration Panel

Indoor Unit LCN240CP

Output W
Model

Indoor fan motor

No. of Poles
Input W
Running Current A
Capacitor µF/Vac

Indoor Fan

Type
No. Used / Diameter EA/mm(inch)

Indoor Fan RPM

Cooling(H/M/L) rpm

Heating(H/M/L) rpm
Air Circulation Indoor (H/M/L) CMM(CFM)
Noise Level
(Sound Press,1m)

Indoor(H/M/L) dB(A)±3
Temperature Controller

Tube Size (OD) inch(mm)
Indoor Coil Fins per inch

No. of Rows & Column

Indoor inch(mm)
Dimensions (W*D*H)

Panel inch(mm)
Net Weight Indoor kg(lbs)

Outdoor Unit LCU240CP

Locked Rotor Amp. A

Type

Quantity No.

Model

Maker
Compressor Capacity W(Btu/h)

Motor Type

Motor Input W

Oil Type

Oil Charge cc

O.L.P Type(Model Name)

Tube Size (OD) inch(mm)
Outdoor Coil Fins per inch

No. of Rows & Column

Output W

Model
Outdoor fan motor

No. of Poles

Input W

Running Current A

Capacitor µF/Vac

Type
Outdoor Fan

No. Used / Diameter EA/inch(mm)

Discharge Side / Top

Speed rpm
Air Circulation Outdoor CMM(CFM)
Noise Level
(Sound Press,1m)

Outdoor dB(A)±3

SVC Valve

Liquid

inch(mm)

Gas
Dimensions (W*H*D) Outdoor inch(mm)
Net Weight Outdoor kg(lbs)

Others

Power Supply Cable(With Earth Cable)

No.* mm

2

Conncecting Cable(With Earth Cable)

Connecting Tube

Liquid Side inch(mm)

(ø. Socket Flare)

Gas Side inch(mm)

Length, std m

Max length/elevation m
Drain hose (ID ø)

Indoor Unit mm

Outdoor Unit mm

40.3

6

121

0.53

4.0/ 440

Turbo Fan

1/382(15)

600 / 540 / 480

-

15.0/14.0/13.0(530/494/459)
43/41/39

Thermistor

0.275(7)
21

2R 12C

29.3*29.4*11.5(744*744*292)

33.5*33.5*1.18(850*850*30)
24(52.9)

62

Rotary

2

GK120K

LG

3,531(12,050)

PSC
1220

FVC68D

700

External

0.275(7)
20

2R 36C

67.2

6

120

0.54

6 / 370

Propeller

1/18.1(460)

Side Discharge

850

58(2048)

55

1 / 4 (6.35)
1 / 2 (12.7)

34.2*25.8*12.6(870*655*320)
57(125.6)

Specifications

Specifications

Notes: 1. Capacities are based on the following conditions:

Cooling: - Indoor Temperature 26.7°C(80.0°F) DB /19.4°C(67.0°F) WB

- Outdoor Temperature 35.0°C(95.0°F) DB /23.9°C(75.0°F) WB

- Interconnecting Piping Length 7.5m

- Level Difference of Zero.

2. Due to our policy of innovation some specifications may be changed without notification.

Service Manual 15

Specifications

LCN380CP
LCU380CP

PT-CDC

Cooling Capacity

W(kcal/h)

Btu/h

Heating Capacity

W(kcal/h)

Btu/h
Input Cooling/Heating W
Running Current Cooling/Heating A
Power Supply ø,V,Hz
Power Factor %

E.E.R Cooling

W/W(kcal/hW)

Btu/hW

C.O.P Heating

W/W(kcal/hW)

Btu/hW
Setting Temperature Range(cool/heat) °C
Dehumidification Rate l/h
Refrigerant Control
Refrigerant Charge g(oz), type

System

Indoor Unit
Outdoor Unit
Decoration Panel

Indoor Unit LCN380CP

Output W
Model

Indoor fan motor

No. of Poles
Input W
Running Current A
Capacitor µF/Vac

Indoor Fan

Type
No. Used / Diameter EA/mm(inch)

Indoor Fan RPM

Cooling(H/M/L) rpm

Heating(H/M/L) rpm
Air Circulation Indoor (H/M/L) CMM(CFM)
Noise Level
(Sound Press,1m)

Indoor(H/M/L) dB(A)±3
Temperature Controller

Tube Size (OD) inch(mm)
Indoor Coil Fins per inch

No. of Rows & Column

Indoor inch(mm)
Dimensions (W*D*H)

Panel inch(mm)
Net Weight Indoor kg(lbs)

52.5

6

175

0.76

4 / 450

Turbo Fan

1/460(18.1)

560 / 520 /480

-

25/23/21(883/812/742)

40/38/36

Thermistor

0.275(7)
21

2R 12C

33.0*33.0*11.3(840*840*288)

37.4*37.4*1.2(950*950*30)
33(72.7)

11,137(9,576)

38000

-

-

4000

18.3

1, 208-230, 60

93

2.78(2394)

9.5

-

-

18~30/(64-86)

4.0

Capillary Tube

5 * 3.3
4 * 2.1

1 / 4 (6.35)

5 / 8 (15.88)

7.5

35/15

ø25

-

63

Rotary

2

GJ176K GJ208K

LG

18100

PSC

FVC68D

500 500

Internal

0.275(7)

18

2R 52C

72

6

151

0.63

6 / 370

Propeller

2/18.1(460)

Side Discharge

880

105(3708)

58

1 / 4 (6.35)

5 / 8 (15.88)

35.4*48.2*14.6(900*1225*370)
93 (205.0)

Outdoor Unit LCU380CP

Locked Rotor Amp. A
Type
Quantity No.
Model
Maker

Compressor Capacity W(Btu/h)

Motor Type
Motor Input W
Oil Type
Oil Charge cc
O.L.P Type(Model Name)
Tube Size (OD) inch(mm)

Outdoor Coil Fins per inch

No. of Rows & Column
Output W
Model
No. of Poles

Outdoor fan motor

Input W
Running Current A
Capacitor µF/Vac
Type

Outdoor Fan

No. Used / Diameter EA/inch(mm)
Discharge Side / Top

Speed rpm
Air Circulation Outdoor CMM(CFM)
Noise Level
(Sound Press,1m)

Outdoor dB(A)±3

SVC Valve

Liquid

inch(mm)

Gas
Dimensions (W*H*D) Outdoor inch(mm)
Net Weight Outdoor kg(lbs)

Others

Power Supply Cable(With Earth Cable)

No.* mm

2

Conncecting Cable(With Earth Cable)

Connecting Tube

Liquid Side inch(mm)

(ø. Socket Flare)

Gas Side inch(mm)

Length, std m

Max length/elevation m
Drain hose (ID ø)

Indoor Unit mm

Outdoor Unit mm

Notes: 1. Capacities are based on the following conditions:

Cooling: - Indoor Temperature 26.7°C(80.0°F) DB /19.4°C(67.0°F) WB

- Outdoor Temperature 35.0°C(95.0°F) DB /23.9°C(75.0°F) WB

- Interconnecting Piping Length 7.5m

- Level Difference of Zero.

2. Due to our policy of innovation some specifications may be changed without notification.

16 Ceiling Cassette Air Conditioner

292

292

212

150

54

90

90

192 117

70

110 110

850

850

850

850

744

658

572
744

Unit:mm

744 Unit size

744 Unit size

658 (Hanging bolt)

6666

790 (Ceiling opening)

790 (Ceiling opening)

572(Hanging bolt)

109

109

30

5

6

4

1

2

3

Number Name Descripition

1 Liquid pipe connection Ø6.35 flare (1/4")
2 Gas pipe connection Ø12.7 flare (1/2")
3 Drain pipe connection
4 Power supply connection
5 Air discharge grill
6 Air suction grill

(unit : mm)

Dimensional Drawings

1. Indoor Units

Model No.: LCN240CP

Dimensional Drawings

Service Manual 17

Dimensional Drawings

288

950

950

290

210.5

180

52

140

40

110

30

90

90

110

30

840

785

840

678

840 Unit size

840 Unit size

672 (Hanging bolt)

101.5101.5

875 (Ceiling opening)

875 (Ceiling opening)

785(Hanging bolt)

45

45

Unit:mm

4

1

2

3

950

950

5

6

Number Name Descripition

1 Liquid pipe connection Ø6.35 flare (1/4")
2 Gas pipe connection Ø15.88 flare (5/8")
3 Drain pipe connection
4 Power supply connection
5 Air discharge grill
6 Air suction grill

(unit : mm)

Model No.: LCN380CP

Model No.

Dim

W mm 870

H mm 800

D mm 320

L1 mm 370

L2 mm 25

L3 mm 340

L4 mm 775

L5 mm 25

L6 mm 546

L7 mm 162

L8 mm 162

L9 mm 54

L10 mm 74.5

L11 mm 79

LCU240CP

Gas side
3-way valve

Liquid side
3-way valve

W

D

L1

L2

L3

L6L7 L8 L9

L4

H

L11

L10

L5

18 Ceiling Cassette Air Conditioner

Dimensional Drawings

Model No.: LCU240CP

2. Outdoor Units

Service Manual 19

Dimensional Drawings

Model No.: LCU380CP

Model No.

Dim

W mm 900

H mm 1,225

D mm 370

L1 mm 460

L2 mm 45

L3 mm 410

L4 mm 1,135

L5 mm 90

L6 mm 550

L7 mm 175

L8 mm 175

L9 mm 112

L10 mm 120

L11 mm 83

LCU380CP

L6L7 L8

L9

L4

H

L11

L10

L5

W

D

L1

L2

L3

Gas side
3-way valve

Liquid side
3-way valve

20 Ceiling Cassette Air Conditioner

Wiring Diagrams

1. Indoor Unit

LCN240CP

Wiring Diagrams