5CIM0-04C

Features
1.8 Ceiling concealed duct - low static pressure

1.8.1 Features

Models : AMNH096BTG0 [MB09AHL NT0] / AMNH126BTG0 [MB12AHL NT0] / AMNH186BTG0 [MB18AHL NT0] AMNH09GB1A0 [MB09AHL N10] / AMNH12GB1A0 [MB12AHL N10] / AMNH18GB2A0 [MB18AHL N20] / AMNH24GB2A0 [MB24AHL N20]
Compact & light design and easy installation Flexible duct is easy to install, regardless of room size or heater position. It can be installed even in a limited space and saves construction cost with slim thickness (Linear E.S.P. Control)
Low noise design 2-thermistor control(main body & remote controller) LCD wired remote controller Wireless remote controller(accessory) Group controller Simple central controller(accessory) Weekly progam Hygienic and easy to clean filter
LGs high technology provide easy and low cost design of duct work. Desired E.S.P. can also be set through LCD wired remote control. Setting of the desired E.S.P. gives required combination of E.S.P. and airflow. High head drain pump(700mm, accessory) 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.

1/50~1/100 Drain pipe

Max. MAX 700mm

Drain pump

Duct (L)

List of functions

1.8.2 List of functions
Category Function Air supply outlet Airflow direction control (left & right) Airflow direction control (up & down) Auto swing (left & right) Auto swing (up & down) Airflow steps(Fan / Cool / Heat) CHAOS swing CHAOS wind (Auto wind) Jet cool (Power wind) Swirl wind Deodorizing filter Plasma air purifier Prefilter(Washable / Anti-fungus) Drain pump E.S.P. control Electric heater (Operation) High ceiling operation Hot start Self diagnosis Soft dry operation Auto changeover Auto cleaning Auto elevation grille Auto operation(Artificial intelligence) Auto restart operation Child lock Forced operation Group control Sleep mode Timer (On/Off) Timer (weekly) Two thermistor control Standard wired remote controller Deluxe wired remote controller Simple wired remote controller Wired remote controller(for hotel use) Wireless remote controller(simple) Wireless LCD remote control General central control(Non LGAP) Dry contact Central control(LGAP) PDI(Power Distribution Indicator) PI 485 CTIE Zone control Thermistor AMNH096BTG0 [MB09AHL NT0] 1 3/3/3 X O X X X O ABDPT O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0 PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA AMNH126BTG0 [MB012AHL NT0] 1 3/3/3 X O X X X O ABDPT O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0 PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA AMNH186BTG0 [MB18AHL NT0] 1 3/3/3 X O X X X O ABDPT O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0 PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA -

Air flow

Air purifying

Installation

Reliability

Convenience

Individual Control

CAC Network Function

Special Function Kit Others
O : Applied X : Not applied : No relation Option : Model name & price are different according to options, and assembled in factory with main unit. Accessory : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package.

Category

Function Air supply outlet Airflow direction control (left & right) Airflow direction control (up & down) Auto swing (left & right) Auto swing (up & down) Airflow steps(Fan / Cool / Heat) CHAOS swing CHAOS wind (Auto wind) Jet cool (Power wind) Swirl wind Deodorizing filter Plasma air purifier Prefilter(Washable / Anti-fungus) Drain pump E.S.P. control Electric heater (Operation) High ceiling operation Hot start Self diagnosis Soft dry operation Auto changeover Auto cleaning Auto elevation grille Auto operation(Artificial intelligence) Auto restart operation Child lock Forced operation Group control Sleep mode Timer (On/Off) Timer (weekly) Two thermistor control Standard wired remote controller Deluxe wired remote controller Simple wired remote controller Wired remote controller(for hotel use) Wireless remote controller(simple) Wireless LCD remote control General central control(Non LGAP) Dry contact Central control(LGAP) PDI(Power Distribution Indicator) PI 485 CTIE Zone control Thermistor
AMNH09GB1A0 [MB09AHL N10] 1 3/3/3 X O X X X O O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0 PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA -
AMNH12GB1A0 [MB12AHL N10] 1 3/3/3 X O X X X O O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0 PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA -

AMNH18GB2A0 [MB18AHL N20] 1 3/3/3 X O X X X O O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0 PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA -
AMNH24GB2A0 [MB24AHL N20] 1 3/3/3 X O X X X O O O O O X X O O O X O O O O O PQRCUDS0 PQRCUCA0 PQRCFCS0)" PQWRHSF0 X PQDSB O PQNUD1S00 PMNFP14A0 X ABZCA -

Specifications

1.8.3 Specifications
Indoor unit type Model Power supply Cooling capacity Heating capacity Current Fan Nominal running current Motor type Fan type Motor output x Number of unit Air flow rate(H/M/L) External static pressure Capacitor Drive Coil Weight Air filter Sound level (H/M/L) Piping connections Drain Dehumidification rate Safety devices Temperature sensor Referigerant Referigerant control Connectable outdoor unit Power and transmission interunit cable No.x mm2 R410A Multi F /F DX series 4*0.75 Liquid Gas OD/ID dB(A)+3 mm(inch) mm(inch) mm l/h Row x Columns x FPI Body mm mm(inch) kg(lbs) Dimensions(WxHxD) Body cmm cfm mmAq F/Vac /V/Hz kW Btu/h kW Btu/h A Ceiling Concealed Duct - Low Static AMNH096BTG0 [MB09AH NT0] 1/ 220~240/ 50 2.64 9,000 2.93 10,000 0.56 Induction Sirocco Fan 35 x 1 8/7/6 282/246/2.5/400 Direct Drive 2R x 12C x 18 650*230*535(25.6*9.0*21.1) 22(48.5) Long Life Filter 34/32/30 6.35 (1/4) 9.52(3/8) 32/25 1.0 Thermistor AMNH126BTG0 [MB012AH NT0] 1/ 220~240/ 50 3.52 12,000 3.87 13,000 0.56 Induction Sirocco Fan 35 x 1 10/9/8 352/317/2.5/400 Direct Drive 3R x 12C x 18 22(48.5) Long Life Filter 37/34/31 6.35 (1/4) 9.52(3/8) 32/25 1.2 Fuse, Thermal Protector for Fan Motor Thermistor R410A Multi F /F DX series 4*0.75 Thermistor R410A Multi F /F DX series 4*0.75 AMNH186BTG0 [MB18AH NT0] 1/ 220~240/ 50 5.27 18,000 5.80 19,800 0.83 Induction Sirocco Fan 47 x 1 13.5/12/10 477/424/2.5/370 Direct Drive 2R x 12C x 18 29(63.9) Long Life Filter 38/36/34 6.35 (1/4) 12.7(1/2) 32/25 2.0
650*230*535(25.6*9.0*21.1) 1000*230*535(39.4*9.0*21.1)
LEV(in Outdoor unit or BD) LEV(in Outdoor unit or BD) LEV(in Outdoor unit or BD)
Note : 1. Capacities are based on the following conditions: Cooling: - Indoor Temperature 27C(80.6F) DB /19C(66.2F) WB - Outdoor Temperature 35C(95F) DB /24C(75.2F) WB Heating: - Indoor Temperature 20C(68F) DB / 15C(59F) WB - Outdoor Temperature 7C(44.6F) DB / 6C(42.8F) WB Piping Length - Interconnecting Piping Length 7.5m - Level Difference of Zero. 2. Wiring cable size must comply with the applicable local and national code.

Conversion Formula kW = Btu/h 0.0002931 CFM = CMM 35.3
Indoor unit type Model Power supply Cooling capacity Heating capacity Current Fan Nominal running current Motor type Fan type Motor output x Number of unit Air flow rate(H/M/L) External static pressure Capacitor Drive Coil Weight Air filter Sound level (H/M/L) Piping connections Drain Dehumidification rate Safety devices Temperature sensor Referigerant Referigerant control Connectable outdoor unit Power and transmission interunit cable No.x mm2 Thermistor R410A Liquid Gas OD/ID dB(A)+3 mm(inch) mm(inch) mm l/h Row x Columns x FPI Body mm mm(inch) kg(lbs) Dimensions(WxHxD) Body cmm cfm mmAq F/Vac /V/Hz kW Btu/h kW Btu/h A AMNH09GB1A0 [MB09AHL N10] 1/ 220~240/ 50 2.64 9,000 2.93 10,000 0.7 Induction Sirocco fan 118 8/7/6 282/246/2 Direct Drive 2R x 12C x (35.3) Long Life Filter 31/26/25 6.35 (1/4) 9.52(3/8) 32/25 1.0
Ceiling Concealed Duct - Low Static AMNH12GB1A0 [MB12AHL N10] 1/ 220~240/ 50 3.52 12,000 3.87 13,000 0.7 Induction Sirocco fan 118 10/9/8 352/317/2 Direct Drive 2R x 12C x (35.3) Long Life Filter 33/31/26 6.35 (1/4) 9.52(3/8) 32/25 1.2 Thermistor R410A AMNH18GB2A0 [MB18AHL N20] 1/ 220~240/ 50 5.27 18,000 5.80 19,800 0.7 Induction Sirocco fan 118 13.5/12/10 477/424/2 Direct Drive 2R x 12C x 19 21(46.3) Long Life Filter 34/31/29 6.35 (1/4) 12.7(1/2) 32/25 2.0 Thermistor R410A AMNH24GB2A0 [MB24AHL N20] 1/ 220~240/ 50 7.03 24,000 7.74 26,400 0.7 Induction Sirocco fan 118 x 1 17.5/16/15 618/565/2 Direct Drive 2R x 12C x 19 21(46.3) Long Life Filter 34/31/29 9.52(3/8) 19.05(3/4) 32/25 2.0 Thermistor R410A
820*190*575(32.3*7.48*22.6) 820*190*575(32.3*7.48*22.6) 1,100*190*575(43.3*7.48*22.6) 1,100*190*575(43.3*7.48*22.6)
Fuse, Thermal Protector for Fan Motor
LEV(in Outdoor unit or BD) LEV(in Outdoor unit or BD) LEV(in Outdoor unit or BD) LEV(in Outdoor unit or BD) Multi F /F DX series Multi F /F DX series Multi F /F DX series Multi F /F DX series 4*0.75 4*0.75 4*0.75 4*0.75

Dimensions

1.8.4 Dimensions
CEILING CONCEALED DUCT AMNH096BTG0 [MB09AHL NT0]

678 208

No. Part Name Air suction flange Air discharge flange Gas pipe connection Liquid pipe connection Drain pipe connection Power supply connection 5

Remark

525 190

Technical Specification

Power supply Cooling Capacity Heating Capacity /V/Hz kW Btu/h kW Btu/h Piping Connections Drain (OD/ID) Liquid() Gas() mm(inch) mm(inch) mm 1/ 220~240 / 50 2.64 9,000 2.93 10,000 6.35(1/4) 9.52(3/8) 32/25
Note 1. Unit should be installed in compliance with the installation manual in the product box. 2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 3. The Unit is powered from the outdoor unit. Therefore power cable should be connected with the outdoor unit.
76, Seongsan-dong, Changwon City, Gyeongnam, 641-713, Korea www.lge.com/airconditioner

CHASSIS CODE: BT

383 570
CEILING CONCEALED DUCT AMNH09GB1A0 [MB09AHL N10]
No. Part Name Air suction flange Air discharge flange Gas pipe connection Liquied pipe connection Drain pipe connection Power supply connection 3 4
Power supply Cooling Capacity Heating Capacity Piping Connections Drain(OD/ID) Liquid() Gas() /V/Hz kW Btu/h kW Btu/h mm(inch) mm(inch) mm 1/ 220~240 / 50 2.64 9,000 2.93 10,000 6.35(1/4) 9.52(3/8) 32/25

CHASSIS CODE: B1

CEILING CONCEALED DUCT AMNH126BTG0 [MB12AHL NT0]
No. 1 Air suction flange Air discharge flange Gas pipe connection Liquid pipe connection Drain pipe connection Power supply connection 4 5

Part Name

Power supply Cooling Capacity Heating Capacity /V/Hz kW Btu/h kW Btu/h Piping Connections Drain (OD/ID) Liquid() Gas() mm(inch) mm(inch) mm 1/ 220~240 / 50 3.52 12,000 3.87 13,000 6.35(1/4) 9.52(3/8) 32/25

170 230

CEILING CONCEALED DUCT AMNH12GB1A0 [MB12AHL N10]
Power supply Cooling Capacity Heating Capacity Piping Connections Drain(OD/ID) Liquid() Gas() /V/Hz kW Btu/h kW Btu/h mm(inch) mm(inch) mm 1/ 220~240 / 50 3.52 12,000 3.87 13,000 6.35(1/4) 9.52(3/8) 32/25

CEILING CONCEALED DUCT AMN186BTG0 [MB18AHL NT0]
Part Name Air suction flange Air discharge flange Gas pipe connection Liquid pipe connection Drain pipe connection Power supply connection

208 188

Power supply /V/Hz kW Cooling Capacity Heating Capacity Piping Connections Drain (OD/ID) Liquid() Gas() Btu/h kW Btu/h mm(inch) mm(inch) mm 1/ 220~240 / 50 5.27 18,000 5.80 19,800 6.35(1/4) 12.7(1/2) 32/25

CHASSIS CODE: BT1

CEILING CONCEALED DUCT AMNH18GB2A0 [MB18AHL N20]

40 165

Power supply Cooling Capacity Heating Capacity

/V/Hz kW Btu/h kW Btu/h

1/ 220~240 / 50 5.27 18,000 5.80 19,800
Piping Connections Drain(OD/ID)

Liquid() Gas()

mm(inch) mm(inch) mm
6.35(1/4) 12.7(1/2) 32/25

CHASSIS CODE: B2

CEILING CONCEALED DUCT AMNH24GB2A0 [MB24AHL N20]
No. 1 Air suction flange Air discharge flange Gas pipe connection Liquied pipe connection Drain pipe connection Power supply connection 4 5
Power supply Cooling Capacity Heating Capacity Piping Connections Drain(OD/ID) Liquid() Gas()
/V/Hz kW Btu/h kW Btu/h mm(inch) mm(inch) mm
1/ 220~240 / 50 7.03 24,000 7.74 26,400 6.35(1/4) 12.7(1/2) 32/25
Note 1. Unit should be installed in compliance with the installation manual in the product box.
2. Unit shall be grounded in accordance with the local regulations or applicable national codes. 3. The Unit is powered from the outdoor unit. Therefore power cable should be connected with the outdoor unit.

Piping diagrams

1.8.5 Piping diagrams
Heat exchanger Heating Gas pipe connection port (flare connection)

Cooling

Th3 Th1
Sirocco Fan Th2 Liquid pipe connection port (flare connection)
Th1 : Thermistor for suction air temp. Th2 : Thermistor for liquid line temp. Th3 : Thermistor for gas line temp.
I Refrigerant pipe connection port diameters
Model AMNH096BTG0 [MB09AHL NT0] AMNH09GB1A0 [MB09AHL N10] AMNH126BTG0 [MB12AHL NT0] AMNH12GB1A0 [MB12AHL N10] AMNH186BTG0 [MB18AHL NT0] AMNH18GB2A0 [MB18AHL N20] AMNH24GB2A0 [MB24AHL N20] 12.7 6.35 9.52 6.35 Gas Liquid

Wiring diagrams

1.8.6 Wiring diagrams

1) Wiring diagrams

ROOM. IN-PIPE. OUT-PIPE. CENTRAL CONTROL REMOTE TELE CONTROL THERMISTOR CONTROL THERMISTOR THERMISTOR DRY CONTACT

A/CL UNIT

PTC HEATER
CN-CC ZONE CONTROL CN-ZONE

CN-PIPE1

CN-REMO CN-PIPE2

CN-ROOM

CN-AIRC

CN-PTC

CN-OUT

VENTILATION E/HEATER

FLOAT S/W

CN-FLOAT

GN/YL BR
CN-DISP CN-MOTOR CN-DPUMP CN-POWER

OPTION

RF-REMOTE CONTROL

3854A20419A

Connector Number CN-POWER CN-MOTOR CN-D/PUMP CN-DISP CN-FLOAT CN-ZONE CN-CC CN-PIPE1 CN-PIPE2 CN-ROOM CN-REMO CN-AIRC CN-PTC CN-OUT
Location AC power supply BLDC fan motor output Drain pump output RF-Remote control Float switch input Zone control output Central control output Pipe senser Discharge pipe sensor Room sensor Remote control Air clean PTC heater Ventilation/Electric heater

1(L) 2(N)

TO OUTDOOR UNIT

Wiring Diagrams

2) PCB
CN_MOTOR CN_PIPE2 CN_PIPE1
CN_FLOAT CN_POWER CN_ZONE

CN_DPUMP

CN_AIRC

CN_REMO

CN_ROOM
External pressure setting for tuning
1.8.7 External pressure setting for
(E.S.P. Control) provide required constant air flow rate irrespective of E.S.P. charge.
(1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. I Without zone system 1. Position V-H, F-H: This position sets the maximum E.S.P. as a default set. 2. Position V-L: This position sets the minimum E.S.P. as a default set. I With zone system 1. Position V-H: Maximum E.S.P. setting & Fan speed is varied according to the state of dampers by micom. 2. Position F-H: Maximum E.S.P. setting & Fan speed doesn't vary according to the opening & closing of dampers. 3. Position V-L: Minimum E.S.P. setting & Fan speed is varied according to the state of dampers by micom. *Maximum: 18/24k - 2mmAq Minimum: All-0mmAq (3) Move the slide switch to set position.
TH R13H R12H CO1H OP5R16H OP4

R14H OP3 SW TH

OP1 R19H R11H

V-L F-H V-H

REMO MAIN 2TH R17H

OP7 R18H OP6

LO STAND HI

C070 R03S R04S R02S R01S

Zone state / Defrost E.S.P
(4) Close the rear cover and check if it works normally.

CAUTION

Select the position after checking duct work and E.S.P. of the unit. Maunfactured in the position F-H.
How to Set E.S.P. on the remote controller?
Procedure of RPM change: Ex) External static pressure is 4mmAq for model name "AMNH246BHA0". To protect the unit, compressor is designed to be off during E.S.P. setting.
Push the "On/Off" button. The unit will start.

AUTO SWING

OPERATION

SET TEMP

Room Temp

FAN SPEED HI MED LO

SUB FUNCTION

Time Timer

Operation unit
AUTO Heater Preheat JET Defrost Humidify Filter Out door ZONE 3 4

Program set

On Off Set no. Time 01
Push the "Timer" and "Wind" button simultaneously for more than 3 seconds.
Push the "Up" of "Down" button for E.S.P. adjustment. And, adjust the number which you want.(In this example, the number is "190". Refer to the table on the next page.)
Note: The range of selection is from 1~254. Since, the display is two digit only. If the range selection is above 100 then the third digit will appear in the screen as shown.(setting value : 190)
Shift the fan speed mode by pressing the fan speed button. And then, adjust numbers of next steps by repeating the stage 3. (In this example, the numbers are "220" and "235" respectively. Push the "Timer" and "Wind" button simultaneously for more than 3 seconds. Then, wind data is memorized by the EEPROM of the main PCB.
07 On Off Set no. Time 01
External pressure setting for tuning E.S.P. setting value (reference)
Static pressure(mmAq) Model name AMNH096BTG0 [MB09AHL NT0] Step(Hi/Med/Lo) 8 CMM 7 CMM 6 CMM 10 CMM AMNH126BTG0 [MB012AHL NT0] 9 CMM 8 CMM 14 CMM AMNH186BTG0 [MB18AHL NT0] 13 CMM 12 CMM 1 Setting value 2

[ Notes ]

1. To get the desired Airflow & E.S.P. combination from the table set the matching value from the table. Value other than that in table will not give the combinations of airflow & E.S.P. which are mentioned in the table. 2. Table data is based at 230V. According to the fluctuation of voltage, air flow rate varies.

Sound levels

1.8.8 Sound levels

Overall

Notes:

Ceiling 2.0m Microphone

- Data is valid at nominal operation condition - Reference accoustic pressure OdB = 20Pa - Sound level will vary depending on a range of factors such as the construction(acoustic absorption coefficient) of particular room in which the equipment is installed. - The operating conditions are assumed to be standard(KS conditions)

Sound pressure level

AMNH096BTG0 [MB09AHL NT0]
AMNH126BTG0 [MB012AHL NT0]
AMNH186BTG0 [MB18AHL NT0]

70 NC-70

Sound pressure level (dB re 20Pa )

NC-65 NC-60

NC-55 NC-50 NC-45 NC-40 NC-35
30 NC-30 NC-25 NC-20 NC-8000
Octave band center frequency (Hz)

Controller

1.8.9 Controller

1) Wired remote controller

3 Signal receiver 13 14

Timer Cancel

Holiday Plasma SET/CLR

Program
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 or heating. 5. Electric heater button(Not available) Used to set the electric heater. 6. Fan speed button Used to set desired fan speed. 7. Operation mode selection button Used to select the operation mode. Auto operation mode. Cooling operation mode. Soft dry operation mode. Heating operation mode.(except cooling model) 8. Timer cancel button Used to cancel the timer.
9. Timer set button Used to set the timer when the desired time is obtained. 10. Week button Used to set a day of the week. 11. Program button Used to set the weekly timer. 12. Holiday button Used to set a holiday of the week. 13. Time set button Used to set the time of the day and change the time in the weekly timer Function. 14. Set and clear button Used to set and clear the weekly timer. 15. Room temperature checking button Used to check the room temperature. 16. Plasma air clean button(Not available) 17. Reset button Used to set the current time and clear the setting time.
C Display temperature can be different from actual room temperature if the remote controller is installed at the place where sun-rays are falling directly or the place nearby heat source.
2) Wireless remote controller(accessory)
This air-conditioner is equipped with wired remote controller basically. But if you want to have the wireless remote controller, you pay for it. Signal transmitter Transmits the signals to the signal receiver. 1. Fan operation button Used to circulate room air without cooling or heating. 2. Cooling operation button 3. Soft dry operation button Used to dehumidify without overcooling. 4. Heating operation button (Heat pump model only) 5. Timer set button Used to set the timer when the desired time is obtained. Then the wired remote controller is set up to 24 hours by an hour but the wireless remote controller is set up to 7 hours by an hour. Therefore, if you want to set over 7 hours, use the wired remote controller. 6. Fan speed button Used to set the desired fan speed.

7. On/Off button Operation starts when this button is pressed, and stops when the button is pressed again. 8. Set temperature button Used to set the temperature when the desired temperature is obtained 9. Auto operation button 10. Plasma air clean button(Not available) 11. Electric heater button(Not available) Used to set the electric heater.
for handling the remote controller Aim at the signal receiver on the wired remote controller so as to operate. The remote control signal can be received at a distance of up to about 7m. Be sure that there are no obstructions between the remote controller and the signal receiver. Do not drop or throw the remote controller. Do not place the remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source. Block a strong light over the signal receiver with a curtain or etc. so as to prevent the abnormal operation. (ex:electronic quick start, ELBA, inverter type fluorescent lamp)

Static pressure(mmAq) Model name Step(Hi/Med/Lo) 10.5CMM AMNH096BPA0 9CMM 8.5CMM 11.5CMM AMNH126BPA0 10CMM 8.5CMM

2 Setting value 230 251

[ Notes ]
1. To get the desired Airflow & E.S.P. combination from the table set the matching value from the table. Value other than that in table will not give the combinations of airflow & E.S.P. which are mentioned in the table. 2. Table data is based at 230V. According to the fluctuation of voltage, air flow rate varies.

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4.2 High Ceiling operation
Function to Control the Air Volume by Ceiling Height Control of the air intensity has been made possible by employing a height-control algorithm for the interior fan. According to the height of the 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.
installation on the higher ceiling Installation on the normal-height ceiling

Elevation Choice

Conditions of Release
- When the elevation is low: lower than 2.4m in height. - Operate the device at one level lower than the standard level. - When the elevation is standard: about 2.7m in height. - Operate the device at the standard air flow level. - When the elevation is high: higher than 3.0m in height. - Operate the device at one level higher than the standard level.

Low Standard Hi

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5. Reliability

5.1 Hot start
When heating is started, the indoor fan is stopped or very slow to prevent the cold air carry out When the temp. of heat exchanger reach 30C(model by model), indoor fan is started.
5.2 Self-diagnosis Function
The air conditioner installed can self-diagnosed its error status and then transmits the result to the central control. Therefore, a rapid countermeasure against failure of the air conditioner allows easy management and increases the usage life of air conditioner. Refer to trouble shooting guide.

5.3 Soft dry operation

6.3.2 Fuzzy Operation for Dehumidification
According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5C or more below the setting temp, the compressor is turned off. When 0.5C or more above the setting temp, the compressor is turned on. Compressor ON Temp Setting Temp + 0.5C Compressor OFF Temp Setting Temp+0.5C At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 26C Intake Air Temp 25C 24C Intake Air Temp<26C Intake Air Temp+1C 22C Intake Air Temp<24C Intake Air Temp+0.5C 18C Intake Air Temp<22C Intake Air Temp Intake Air Temp<18C 18C When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as in dehumidification operation.

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6.3.3 Fuzzy Operation for Heating
According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3C or more above the setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on. Compressor ON Temp Setting Temp Compressor OFF Temp Setting Temp + 3C At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time. 20CIntake Air Temp Intake Air Temp + 0.5C Intake Air Temp<20C 20C When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule. While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to the intake air temperature and the setting temperature. Notes: The Temp. of Comp. Turn ON and OFF is different in heating mode and fuzzy operation for heating. Please, refer page 11
6.4 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.

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6.5 Child Lock Function
This function prevents children or others from tampering with the control buttons on the unit. It is then controlled by the remote controller. All the buttons on indoor display panel will blocked. The unit will be controlled only by remote controller. The function is used to restrict children to not to use the air conditioner carelessly.(CL is an abbreviated form of Child Lock.)

Function setup

AUTO SWING OPERATION

SET TEMP

FAN SPEED
HI AUTO Heater Preheat MED Defrost Humidify LO JET Filter Out door ZONE 3 4

On Off Set no. Time 01

Cancel

Program

Holiday

PLASMA

1 If you press the preset and minute setup button for 3 seconds at the same time, the operation condition switches to the child lock function and will be indicated as "CL" on the indication monitor. At that time, remote control doesn't switch to the selected mode and "CL" appears on the indication monitor for 3 seconds if you press another button. However, it normally performs the actions of the room temperature indication function and wireless remote control.

Set/Clr Hour Min

Function cancel
1 Press the preset and minute setup button over 3 seconds at the same time. In that case, the child lock function cancels and will be indicated as the previous condition.

6.6 Forced operation

To operate the appliance by force in case when the remote control is lost, the forced operation selection switch is on the main unit of the appliance, and operate the appliance in the standard conditions. The operating condition is set according to the outdoor temp. and intake air temperature as follows. Indoor temp. over 24C 21~24C below 21C Operating Mode Cooling Healthy Dehumidification Heating Setting temp. 22C 22C 22C High speed Setting speed of indoor fan
The unit select the last operation mode in 3 hours. Operating procedures when the remote control can't be used is as follows : - The operation will be started if the ON/OFF button is pressed. - If you want to stop operation, re-press the button.

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6.7 Group Control

6.7.1 Operation Summary

Where several products are linked, one specific control device can control a specific number of products.

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7. Special Function & KIT

7.1 Zone Controller

This feature can be used to control the operation of the Air Conditioning Unit where each zone (maximum of 4 zones) has a separate thermostat and damper motor, your Air Conditioning

Room1 Thermostat

Room2 Thermostat
Damper Motor Damper Motor

Zone control sub PCB

Room3 Thermostat

Room4 Thermostat

7.2 Low Ambient control
This Function is for cooling operating in outdoor low temperature. If outdoor temperature drops below certain temperature, liquid back is prevented by reducing outdoor fan speed. It can prevent frosting of evaporator and keep cooling operation

Outdoor pipe T2C

Outdoor Fan Speed

Setting Speed

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7.3 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.
7.4 Auto Elevation Grille
Auto Elevation Grille is automatically down to height of max. 3.1 m. So it enables to install the Indoor unit at high ceiling space. And Auto Elevation Grille makes you cleaning the filter easily.
I ELEVATION GRILL (REMOTE CONTROLLER_Accessory)
Main Components of Lift Grill

Signal transmitter

Lift grill front panel assembly Bolts for installation (4 EA, P/No. 3A00255K) Instruction manual

Ascend Descend

Remote Controller for lift grill
How to Use Remote Controller
As for operation of Remote Controller, use it by directing the transmitter part of Remote Controller to the receiver part of front panel directly under front panel. Do not drop it down or into water. Or else there is worry about trouble failure. Do not press hard the Remote Controller button with nail (ballpoint pen or other sharp substance). Or else there is worry about trouble failure. In case when obstacle such as curtain hides the signal reception part of receiver in between the space interval, Remote Controller operation is infeasible.

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Part 2 Functions & Controls How to Operate the Lift Grill
Always stop the air conditioner operation for safety before operating lift grill. Take heed _ there is worry about dust fall etc. when suction grill descends. In case when the set automatic stop distance goes wrong, check the set value of operation panel and confirm if there is neither obstacle nor mankind. When you are not to remove obstacle, stop the operation before touching the obstacle.

Discharge temperature Intake temperature

Discharge temperature

3.1.3 Settlement of outdoor unit I Anchor the outdoor unit with a bolt and nut(10mm) tightly and horizontally on a concrete or rigid mount. I When installing on the wall, roof or rooftop, anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake. I In the case when the vibration of the unit is conveyed to the hose, secure the unit with an anti-vibration rubber.

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3.2 CVT Type
3.2.1 Connection of power supply
1) Connect the power supply cord to the independent power supply. Circuit breaker is required. 2) Prepare the remote control. Insert two batteries provided. Remove the battery cover from the remote controller. Slide the cover according to the arrow direction. Insert the two batteries. (Two "R03" or "AAA" dry-cell batteries or equivalent.) Be sure that the (+) and (-) directions are correct. Be sure that both batteries are new. Re-attach the cover. Slide it back into position. 3) Operate the unit for fifteen minutes or more.
3.2.2 Evaluation of the performance
1) Measure the temperature of the intake and discharge air. 2) Ensure the difference between the intake temperature and the discharge one is more than 8C (Cooling) or reversely (Heating).

Thermometer

3.2.3 Selection of the slide switch according to installation method
1) In case the indoor unit is installed on the floor, please change the side switch which is on the Main PCB Assembly to the 'BOTTOM' state. 2) In case the indoor unit is installed under the ceiling, please change the slide switch which is on the Main PCB Assembly to the ' CEILING' state. The initial state of the slide switch is set for the bottom installation.

CN_INSTALL

CEILING BOTTOM

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3.3 Ceiling Cassette Type
3.3.1 PRECAUTIONS IN TEST RUN
The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated.
CAUTION: For test run, carry out the cooling operation first even during winter season. If heating operation is carried out first, it leads to the trouble of compressor. Carry out the test run more than 5 minutes without stopping. (Test run will be cancelled 18 minutes later automatically)

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Error code 73 Description EEPROM Check Sum Error Cond. Pipe Th High Heatsink Th High Cond. Pipe Th Low Heatsink Th Error (Open/Short) Outdoor BLDC Fan Lock PFC Fault Error(S/W) LED 1 (Red) 6times 6times 6times 6times 6times 6times 7times LED 2 (Green) O 1time 2times 3times 5times 7times 3times Indoor Status Off Off Off Off Off Off Off

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2. Pumping Down
Indoor unit Liquid side 2-Way valve

Outdoor unit

Gas side

Closed

3-Way valve

CLOSE CLOSE

Purge the air

Procedure

(1) Confirm that both the 2-way and 3-way valves are set to the open position. Remove the valve stem caps and confirm that the valve stems are in the raised position. Be sure to use a hexagonal wrench to operate the valve stems. (2) Operate the unit for 10 to 15 minutes. (3) Stop operation and wait for 3 minutes, then connect the charge set to the service port of the 3-way valve. Connect the charge hose with the push pin to the service port. (4) Air purging of the charge hose. Open the low-pressure valve on the charge set slightly to air purge from the charge hose. (5) Set the 2-way valve to the closed position. (8) Disconnect the charge set, and mount the 2way and 3-way valves stem nuts and the service port nut. Use torque wrench to tighten the service port nut to a torque of 1.8 kg.m. Be sure to check for gas leakage. (6) Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg/cm2g. (7) Immediately set the 3-way valve to the closed position. Do this quickly so that the gauge ends up indicating 3 to 5kg/cm2g.

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3. Evacuation (All amount of refrigerant leaked)
Liquid side Outdoor unit 3-Way valve

Indoor unit

Vacuum pump

OPEN OPEN Vacuum Gage

(1) Connect the vacuum pump to the center hose of charge set center hose (2) Evacuation for approximately one hour. Confirm that the gauge needle has moved toward 0.8Torr. (3) Close the valve (Lo side) on the charge set, turn off the vacuum pump, and confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). (4) Disconnect the charge hose from the vacuum pump. Vacuum pump oil. If the vacuum pump oil becomes dirty or depleted, replenish as needed.

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Yes Recheck power and installation condition

I Comp checking method

Comp U V W Resistance() at 20C Terminal U-V V-W W-U Copper pipe Inverter Constant comp. comp. 0.64 0.64 0.64 0.8 0.8 0.8

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4. Trouble Shooting I 27/30/40k

LED01M LED02M

U,V,W CONNECTOR
1. Wait until inverter PCB DC voltage is discharged after main power off. 2. Pull out V, V, W COMP connector. 3. Set multi tester to resistance mode. 4. If the value between P and N terminal of IPM is short(0) or open(hundreds M), PCB needs to be replaced.(IPM damaged) 5. Set the multi tester to diode mode. 6. In case measured value is different from the table, PCB needs to be replaced.(PCB damaged).
P 27 U 26 V 25 W 24 Nu Nv Nw 21 P 27 U 26 V 25 W 24 Nu Nv Nw 21

0.4 ~ 0.6 V

PFC_IPM chec U, V, W R S
In case that the control box is opend and before checking electrical parts, it should be checked that the LED 01M, 02M turned off(wait 7 minutes after main power OFF), otherwise it may cause electrical shock.

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4. Trouble Shooting I 48/56k

LED01M

LED02M
CN(N)_BLUE U,V,W CONNECTOR

CN(L)_BRWON

1. Wait until inverter PCB DC voltage is discharged after main power off. 2. Pull out CN(L), CN(N) connectors and U,V,W COMP Connector. 3. Set multi tester to resistance mode. 4. If the value between P and N terminal of IPM is short(0) or open(hundreds M), PCB needs to be replaced.(IPM damaged) 5. Set the multi tester to diode mode. 6. In case measured value is different from the table, PCB needs to be replaced.(PCB damaged).

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Display code Title Cause of error Input Over Current(27/30/40k-17A 48/56k-29A ) Check point & Normal condition 1. Malfunction of Compressor 2. Blocking of Pipe 3. Low Voltage Input 4. Refrigerant, Pipe length, Blocked.
1. Check Pipe clogging/distortion 2. Check Covering (Indoor/Outdoor Unit) 3. Check EEV connector assemble condition/normal operation 4. Check refrigerant pressure Reassemble or manage if abnormality found 1. Check resistance between each terminal of compressor (0.188 7%) 2. Check insulation resistance between compressor terminal and pipe (over 50M ) Replace compressor if abnormality found 1. Check inverter PCB assembly U,V,W connector connection condition 2. Check wire disconnection and wiring 3. Check compressor terminal connection condition (bad contact) Reassemble if abnormality found

Yes Are the resistance Between each phase and insulation resistance of Inverter compressor normal? Yes Is compressor Wire connection condition normal? Yes
Is inverter PCB assembly power connection normal?
Check connection between inverter PCB assembly and bridge diode(misconnection, disconnection) wiring again if abnormality found

Is input voltage normal?

Check L~N phase is 220V 15% Check connection condition and wiring if power is abnormal

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1. Check the power source.(220V 15%) 2. Check the fan operation is right. 3. Check the current. 4. Check the install condition. 5. Check the CT Sensor Output signal (27/30/40k - Check output the CT Sensor : DC 2.50.2V) (48/56k - Check output pin 1.2 of the CT Sensor : 5V )
< Input Power Source Check Point >
< Main PCB> <CT Sensing Check Point>

< Inverter PCB>

<CT Sensing Check Point>

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Display code Title Cause of error Check point & Normal condition Check point & Normal condition Check theCN_(L),CN_(N) Connection. At not operating : DC Link voltage(280V ) At Comp operating : DC Link voltage(340V )

DC Link Low voltage

DC Link volt is below 140Vdc
No Is input voltage normal ? Yes No Is Inverter PCB assembly Power connection normal? Check connection from terminal block to Inverter PCB assembly CN(L), CN(N) Check L~N Voltage is 220V15%
Yes No Is Inverter PCB Normal? Yes Recheck power and installation condition Replace inverter PCB assembly

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1. Check the WCN_P(L),P(N) Connection condition at the Main PCB.(Refer to outdoor wiring diagram) 2. Check the DC Link voltage at not operating(280V ) 3. Check the DC Link voltage at Comp operating(340V ) 4. Check DC Link Sensing Signal :2.4~2.8V (Refer the Picture)
< Input Power Source Check Point > 27/30/40k

< Main PCB>

<DC Link Voltage Check Point>
<DC_LINK Sensing Check Point>

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48/56k

N GND L

<Connection Check Point>

DC_LINK GND

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Display code Title Cause of error Check point & Normal condition
Check the connection CN_L/PRESS,H/PRESS Check the components.
I Error diagnosis and countermeasure flow chart
Is high pressure switch connector connected to PCB?* Yes No

Connect securely

Is high pressure switch connector short during off time?** Yes
Replace high pressure switch
Is SVC valve open? Yes Is this error appeared again after reset? Yes Is high pressure more than 2500kPa at manifold gauge? Yes Is high pressure of LGMV similar as at manifold gauge? Yes Check pipe is blocked or not and take measure

<Main PCB>

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Display code Title Cause of error Check point & Normal condition 1. Overload operation (Pipe clogging/Covering/EEV defect/Ref.overcharge) 2. Compressor damage (Insulation damage/Motor damage) 3. Input voltage abnormal (L, N) 4. Power line assemble condition abnormal 5. Inverter PCB assembly damage (input current sensing part)
AC input instant over current error (Matter of software)
Inverter PCB input power current is over 48A(peak) for 2ms
Check L~N phase voltage is 220V 10% Check connection condition and wiring if power is abnormal
Is AC input Wire connection condition normal? Yes
1.Check L,N connection condition 2.Check wire disconnection and wiring Reassemble if abnormality found
Is compressor Wire connection condition normal? Yes
No Check inverter PCB assembly IPM normality Replace inverter PCB assembly

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< Noise Filter wiring Check Point >
< Main PCB wiring Check Point >

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< Inverter PCB wiring Check Point >

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A7UW428FA3/A8UW488FA3/A9UW548FA3
1. Check the input power AC230V. (Outdoor, Indoor unit) 2. Check the communication wires are correctly connected. Adjust the connection of wire Confirm the wire of "Live", "Neutral" 3. Check the resistance between communication line and GND. (Normal : Over 2M) 4. Check the connector for communication is correctly connected. 5. If one indoor unit is operated normally, outdoor PCB is no problem. Check the another indoor unit. * CH05 is displayed at indoor unit, CH53 is displayed at outdoor unit. 6. If all indoor unit is displayed CH05 but outdoor PCB not display 1) In Case of CH05, Check the Connection CN-POWER, CN-COMM at the Main PCB CN-MAIN at the Noise Filter 2) In Case of CH53, Check the Connection CN-COMM at the Main PCB CN-MAIN-COMM, CN-AC-220V at the Inverter PCB CN- INVERTER at the Noise Filter

CN-COMM

< MAIN PCB >

CN-INVERTER CN-MAIN

< Noise Filter >

CNAC-220V

CNMAIN-COMM

< INVERTER PCB >

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Yes Are the resistance Between each phase and insulation resistance of Inverter compressor normal? Yes Is compressor Wire connection condition normal? Yes 1. Check inverter PCB assembly U,V,W connector connection condition 2. Check wire disconnection and wiring 3. Check compressor terminal connection condition (bad contact) Reassemble if abnormality found 1. Check resistance between each terminal of compressor (1.083~1.123 5%) 2. Check insulation resistance between compressor terminal and pipe (over 50M ) Replace compressor if abnormality found
Comp U V W Resistance() at 20C Terminal U-V V-W W-U Copper pipe Inverter comp. 1.083 1.123 1.096
Resistance() at 20C Terminal U-GND V-GND W-GND Inverter comp. 50M 50M 50M

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1. Wait until inverter PCB DC voltage is discharged after main power off. 2. Pull out CN-L1(R), CN-L2(S), CN-L3(T) and CN-COMP Connector. 3. Set multi tester to resistance mode. 4. If the value between P and N terminal of IPM is short(0) or open(hundreds M), PCB needs to be replaced.(IPM damaged) 5. Set the multi tester to diode mode. 6. In case measured value is different from the table, PCB needs to be replaced.(PCB damaged).
PFC_IPM check U, V, W R S T

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Display code Title Cause of error Check point & Normal condition 1. Malfunction of Compressor 2. Blocking of Pipe 3. Low Voltage Input 4. Refrigerant, Pipe length, Blocked.

Input Over Current

Is installation condition normal? No 1. Check Pipe clogging/distortion 2. Check Covering (Indoor/Outdoor Unit) 3. Check EEV connector assemble condition/normal operation 4. Check refrigerant pressure Reassemble or manage if abnormality found 1. Check resistance between each terminal of compressor 1.083~1.123 5% 2. Check insulation resistance between compressor terminal and pipe (over 50M ) Replace compressor if abnormality found 1. Check inverter PCB assembly U,V,W connector connection condition 2. Check wire disconnection and wiring 3. Check compressor terminal connection condition (bad contact) Reassemble if abnormality found
Check R~S/S~T/T~R phase voltage is 380V 10% R~N/S~N/T~N phase voltage is 220V 10% Check connection condition and wiring if power is abnormal.

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1. Check the power source.(200~240V) 2. Check the fan operation is right. 3. Check the current. 4. Check the install condition. 5. Check the CT Sensor Output signal (Check output pin 1.2 of the CT Sensor : 5V )

Tester

CT Sensor Output (at the INVERTER PCB)

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Display code Title Cause of error Check point & Normal condition Check point & Normal condition Check the TAB1 is connect. At not operating : DC Link voltage(260V ) At Comp operating : DC Link voltage(500V )
DC Link volt is below 300V
Is DC Link voltage under 380V ? No Check the DC link Voltage AD Input of Inverter PCB If AD Input is strange, change the Inverter PCB (refer the next page.)
Yes R~S/S~T/T~R phase voltage is 400V 10% R~N/S~N/T~N phase voltage is 220V 10% Check connection condition and wiring if power is abnormal.
Is input voltage normal ?
Is Inverter PCB assembly Power connection normal?
Check connection from terminal block to Inverter PCB assembly CN_L1(R), CN_L2(S), CN_L3(T)

Is Inverter PCB Normal?

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1. Check the Tab1 connection condition. (Refer to outdoor wiring diagram) 2. Check the CN_L1(R), CN_L2(S), CN_L3(T) connection condition 3. Check the DC Link voltage at not operating(380V ) 4. Check the DC Link voltage at Comp operating(500V ) 5. Check DC Link Sensing Signal (Refer the Picture)

GND 500Vdc 10% +

<INVERTER PCB>
DC Link Voltage INV oltage
<INPUT VOLTAGE Check Point>

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Display code Title Cause of error Abnomal Input Voltage (R,S,T -N /140Vac , 300Vac ) Check point & Normal condition
Check the power source. Check the components.
Is input voltage normal? No R~S/S~T/T~R phase voltage is 400V 10% R~N/S~N/T~N phase voltage is 220V 10% Check connection condition and wiring if power is abnormal.
<INVERTER PCB> Tester
< CH25 Check Point >
INPUT VOLTAGE INV VOL AGE

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1. Check the connection condition of PCB. 2. Check the connection condition of Comp. U,V,W wire. 3. Check the comp resistor and insulation resistance. 4. Check the IPM.(Refer 106 page) 5. Check the pressure of refrigerant. 6. Check the Service Valve Open.

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Display code Title Cause of error Check point & Normal condition Check the discharge pipe sensor for INV. Check the install condition for over load. Check the leakage of refrigerant. Check the Service Valve open. Check the outdoor fan.
D-pipe (Inverter) temp. high (105C )
1. Check the install condition for over load. 2. Check the Service Valve open. 3. Check the outdoor fan operating condition 4. Check the leakage of refrigerant.

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Display code Title Transmission Error Between (PFC Micom INV Micom) Cause of error Communication Error Between PFC Micom and INV Micom. Check point & Normal condition 1. Micom defect/Circuit defect 2. Different Micom S/W Version 3. ODU inverter PCB assembly damage
Is PFC Micom & INV Micom S/W Program normal? Yes

Upgrade Micom Program

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Display code Title Cause of error Check point & Normal condition Malfunction of current detection circuit. (Open / Short) The voltage of "C01N" Is 4.0Vdc(25A). Check CT Sensor output voltage : 2.5Vdc 5%
Is CT Sensor Output is right? Yes No Check the input voltage source (Is nomal the offset of R-N,T-N voltage) No If the CT Sensor output is not 2.5Vdc5% Replace the Inverter PCB
Is input voltage normal? Yes Recheck the Inverter PCB and installation condition
COMP CURRENT U,V,W U,V ,W <INVERTER PCB> INPUT VOLTAGE VOL AGE INV <INPUT VOLTAGE Check Point>

Outdoor fan lock

Outdoor fan is not operating
CH67(Outdoor fan lock) occurrence
Is fan connector condition right ?
Do right fan connector condition

Is Fan motor nomal?

Change abnomal motor
Yes Replace inverter PCB assembly
<INVERTER PCB connection>
<fan motor middle connection>
<FAN Motor Connection check>

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P/NO : MFL36552501

APRIL, 2008