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DELUXE HIGH WALL MINI SPLITSERVICE MANUAL

MODEL : HMC036KDT1HMH036KDT1

CAUTION

-BEFORE SERVICING THE UNIT, READ THE "SAFETYPRECAUTIONS" IN THIS MANUAL.-ONLY FOR AUTHORIZED SERVICE PERSONNEL.

International Comfort Products

2 MPS Multi Air Conditioner

Multi Air Conditioner Service Manual

TABLE OF CONTENTS

Safety Precautions......................................................................................................................................3

About MPS ...................................................................................................................................................7

Product Specifications ......................................................................................................................................8

Dimensions ........................................................................................................................................................10

Refrigeration Cycle Diagram .............................................................................................................................12

Wiring Diagram ...................................................................................................................................................13

Electronic Control Device ..................................................................................................................................14

Schematic Diagram ...........................................................................................................................................17

Functions ............................................................................................................................................................20

Operation Details................................................................................................................................................23

2-way, 3-way Valve..............................................................................................................................................30

Cycle Troubleshooting Guide............................................................................................................................34

Electronic Parts Troubleshooting Guide ..........................................................................................................35

Installation ..........................................................................................................................................................42

Operation ............................................................................................................................................................56

Disassembly of the parts (Indoor unit).............................................................................................................58

Exploded View and Replacement Parts List ....................................................................................................60

Service Manual 3

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions mustbe followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

Meanings of symbol used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING Installation

Be sure not to do.

Be sure to follow the instruction.

Do not use a defective orunderrated circuit breaker.Use this appliance on a dedi-cated circuit.

• There is risk of fire or electric shock.

Do not let the air conditionerrun for a long time when thehumidity is very high and adoor or a window is left open.

• Moisture may condense and wet ordamage furniture.

Always ground the product.


Install the panel and the coverof control box securely.


Always install a dedicated cir-cuit and breaker.

• Improper wiring or installation maycause fire or electric shock

Use the correctly rated break-er or fuse.



Safety Precautions

Operational

Do not modify or extend thepower cable.


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

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

Be cautious when unpackingand installing the product.

• Sharp edges could cause injury. Beespecially careful of the case edgesand the fins on the condenser andevaporator.

For installation, always con-tact the dealer or anAuthorized Service Center.

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

Do not install the product on adefective installation stand.

• It may cause injury, accident, or dam-age to the product.

Be sure the installation areadoes not deteriorate with age.

• If the base collapses, the air condition-er could fall with it, causing propertydamage, product failure, and personalinjury.

Do not touch(operate) theproduct with wet hands.

• There is risk of fire or electrical shock.

Do not place a heater or otherappliances near the powercable.

• There is risk of fire and electric shock.

Do not allow water to run intoelectric parts.

• It may cause There is risk of fire, fail-ure of the product, or electric shock.

Service Manual 5

Safety Precautions

Do not open the inlet grille of the product dur-ing operation. (Do not touch the electrostaticfilter, if the unit is so equipped.)

• There is risk of physical injury, electric shock, or product fail-ure.

Be cautious that water could not enter theproduct.

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

Do not store or use flammable gas or com-bustibles near the product.

• There is risk of fire or failure of product.

If strange sounds, or smell or smoke comesfrom product. Turn the breaker off or discon-nect the power supply cable.

• There is risk of electric shock or fire.

Gasolin


Operational

Safety Precautions

Use two or more people to liftand transport the product.

• Avoid personal injury.

Use a soft cloth to clean. Donot use harsh detergents, sol-vents, etc.

• There is risk of fire, electric shock, ordamage to the plastic parts of the prod-uct.

Do not touch the metal partsof the product when removingthe air filter. They are verysharp!

• 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 throughthe air inlet or outlet while the product is oper-ated.

• There are sharp and moving parts that could cause personalinjury.

CAUTION Installation

Wax Thinner

check for gas (refrigerant)leakage after installation orrepair of product.

• Low refrigerant levels may cause fail-ure of product.

Install the drain hose toensure that water is drainedaway properly.

• A bad connection may cause waterleakage.

Keep level even wheninstalling the product.

• To avoid vibration or water leakage.

90˚

About MPS

About MPS

Conventional (On/Off Operation)

• During a Conventional Air Conditioning Cycle, the Compressor must turn on and off to reach desired Temperature setting.

• A large portion of power is used during Restart.This causes unnecessary power consumption.

27

25

23

21

19

00:05 0:10 0:15 0:20

Operation time (min)

Indo

or T

emp

(°C

)

ON OFF ON OFF

MPS

• MPS(Multi Power System) is a power saving system With Two rotary compressors of different capacity (60% & 40%) Operating an A/C at high power until it reaches desired temperature.

• And when it reaches the temperature, only the 40% Capacity rotary compressor operates.

27

25

23

21

19

00:05

100% operation 40% operation

0:10 0:15 0:20Operation time (min)

Indo

or T

emp

(°C

)

Service Manual 7

MPS (Multi Power System)


Product Specifications


1. HMC036KDT1

34,200/36,000 22,800/24,000 11,400/12,000 208/230V

- - - -

3.6 2.4 1.2 at 230V

1Ø, 208/230V, 60Hz

Indoor – – 8

Outdoor 63

Indoor – – 40/38/36at 230V

Outdoor 54

4,020/4,020 2,530/2,530 1,340/1,340

– – –

17.9/17.9 11.6/11.6 5.9/5.9208/230V

– – –

8.5/8.9 9.0/9.5 8.5/8.9

– – –

Indoor 888x287x170

Outdoor 870 x 1060 x 320

Indoor 9

Outdoor 78

Liquid 6.35(1/4)

Gas 12.7(1/2)

2,500 – – at 7.5m

O

L.C.D Wireless

O

O

Operation2-Unit On 1-Unit On3-Unit On Remarks

UnitItem

Cooling Capacity

Heating Capacity

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w

C.O.P. -

Dimensions(W x H x D) mm

Net. Weight kg

Service Valve mm(Inch)

Refrigerant(R-22) g

Airflow Direction Control(Up & Down)

Remote Controller Type

Sleeping Operation

Drain Hose

Cooling

Heating

Cooling

Heating

Cooling

Heating

Runnig

Current

Btu/h(kcal/h)

( Hi / Med / Low )

Service Manual 9


2. HMH036KDT1

34,600/36,000 23,040/24,000 11,500/12,000 208/230V

– – –

3.6 2.4 1.2 at 230V

1Ø, 208/230V, 60Hz

Indoor – – 8

Outdoor 63

Indoor – – 40/38/36at 230V

Outdoor 54

3,920/3,920 2,660/2,660 1,500/1,500

– – –

17.5/17.5 12.2/12.2 6.7/6.7208/230V

– – –

8.8/9.2 8.7/9.0 7.7/8

– – –

Indoor 888 x 287 x 170

Outdoor 870 x 1060 x 320

Indoor 9

Outdoor 78

Liquid 6.35(1/4)

Gas 9.52(3/8)

2,500 780 780 at 7.5m

O

L.C.D Wireless

O

O

Operation2-Unit On 1-Unit On3-Unit On Remarks

UnitItem

Cooling Capacity

Heating Capacity

Moisture Removal /h

Power Source ø, V, Hz

Air Circulation /min

Noise Level dB(A)

Input W

A

E.E.R. Btu/h.w

C.O.P. -

Dimensions(W x H x D) mm

Net. Weight kg

Service Valve mm(Inch)

Refrigerant(R-22) g

Airflow Direction Control(Up & Down)

Remote Controller Type

Sleeping Operation

Drain Hose

Cooling

Heating

Cooling

Heating

Cooling

Heating

Runnig

Current

Btu/h(kcal/h)

( Hi / Med / Low )


Dimensions

1. Indoor Unit

Dimensions

Installation plate

A

A

ø70mm

CenterCenter

ø70mm

Left rear piping Right rear piping

A

A

D

H

W

Tubing hole cover

W mm 888

H mm 287

D mm 170

HMC036KDT1, HMH036KDT1MODEL

DIM

Service Manual 11

Dimensions

2. Outdoor Unit

L6L7 L8L9

L4

H

L5

W

D L1

L3

L2

L10

L11L

11L1

1L1

1L1

1

Gas side3-way valve

Liquid side2-way valve

HMC036KDT1, HMH036KDT1MODEL

DIM

W mm 870

H mm 1038

D mm 320

L1 mm 360

L2 mm 340

L3 mm 25

L4 mm 1035

L5 mm 25

L6 mm 546

L7 mm 160

L8 mm 160

L9 mm 44

L10 mm 64.5

L11 mm 50

Indoor Side Outdoor Side

B A

4- WAY Valve

COMP BCOMP AA

ccum

.

C

Indoor Side Outdoor Side

B A

COMP BCOMP A

Acc

um.

C

ex)

Solenoid Valve

L.E.V

3-Way Valve

2-Way Valve

Capillary


Refrigeration Cycle Diagram

Refrigeration Cycle Diagram

1. HMH036KDT1

2. HMC036KDT1

Wiring Diagram

Service Manual 13

Wiring Diagram

Indoor Unit

Outdoor Unit

MOTOR

PILLARTERMINAL

STEPMOTOR

MAIN PCB ASSY

FORCEDOPERATIONAUTORESTART

REMOTECONTROL

THERMISTOR(OUT PIPE)

THERMISTOR(IN PIPE/AIR)

3854A24002C

CN

-MO

TOR

CN-DISP1

DISPLAY PCB ASSY

INDOOR WIRING DIAGRAM

TO OUTDOOR UNIT

C

RD BK BR BL

G V S

CN

-PO

WE

R

CN

-U/D

CN

-TH

1C

N-T

H2

SW

01F

COR

WH

WH

WH

RD

RD

BR

BR

BK

BK

BKYLBK

BK BK

WH

RDOR

OR

BLYL

RDBLYL

BK

BK

WH

WH

BL RD

YL

YL

GN/YL

CN-LEV(A) CN-LEV(B) CN-LEV(C)

CN-COM 1

CN-COM 2

CN-FAN

CN-RY_SV

CN-TH2

CN-POWER1 CN-POWER2

CN-COM 3

RY-COMP A 3 4

3 4RY-COMP B

F2(FUSE 250V T3.15A)

MAIN AC PCB ASSY

MAIN DC PCB ASSY

F1 : FUSE 250V 2.5ACo : CAPACITORTM.TB : TERMINAL BLOCKCN : CONNECTORRY : RELAY4WV : 4WAY VALVESV : SOLENOID VALVE

THERMISTOR(PIPE)THERMISTOR(AIR)

F1

F1

TOINDOORUNIT-A

POWERSUPPLY

1(L)

TM(POWER)

TM(PILLAR)

TB1

TB2

TB3

TB4

PR

PR

OLP

Co

CS

R

Co

Co

Co

6 8

2

0 1

4

H

C

F

H

C

F

LEVA

LEVB

LEVC

COMP-A

COMP-B

3854A24002D

FMo1

FMo2

OUTDOOR WIRING DIAGRAM

2(N)

BK

BK

BRBL

GVS

CRDTOINDOORUNIT-B

BKBRBL

GVS

CRDTOINDOORUNIT-C

BKBR

GN/YL

BL

GVS

F1

F1

F1

F1

CN-TH1THERMISTOR(DISCHARGE1)THERMISTOR(DISCHARGE2)

CS

R

COR

WH

WH

WH

RD

RD

BR

BR

BK

BK

BKYLBK

BK BK

WH

RDOR

OR

BLYL

RDBLYL

YLBK

BK

BK

WH

WH

BL RD

YL

BK

YL

YL

GN/YL

CN-COM 1

CN-COM 2

CN-FAN

CN-RY_SV

CN-TH2

CN-POWER1 CN-POWER2

CN-COM 3

RY-COMP A 3 4

3 4RY-COMP B

F2(FUSE 250V T3.15A)

MAIN AC PCB ASSY

MAIN DC PCB ASSY

F1 : FUSE 250V 2.5ACo : CAPACITORTM.TB : TERMINAL BLOCKCN : CONNECTORRY : RELAY4WV : 4WAY VALVESV : SOLENOID VALVE

THERMISTOR(PIPE)THERMISTOR(AIR)

F1

F1

TOINDOORUNIT-A

POWERSUPPLY

1(L)

TM(POWER)

TM(PILLAR)

TB1

TB2

TB3

TB4

PR

PR

OLP

Co

CS

R

Co

Co

Co

6 8

2

0 1

4

H

C

F

H

C

F

LEVA

LEVB

LEVC

COMP-A

COMP-B

3854A24002B

FMo1

FMo2

4WVSV

OUTDOOR WIRING DIAGRAM

2(N)

BK

BK

BRBL

GVS

CRDTOINDOORUNIT-B

BKBRBL

GVS

CRDTOINDOORUNIT-C

BKBR

GN/YL

BL

GVS

F1

F1

F1

F1

CN-TH1THERMISTOR(DISCHARGE1)THERMISTOR(DISCHARGE2)

CS

R

CN-LEV(A) CN-LEV(B) CN-LEV(C)

HMC036KDT1HMH036KDT1

HMC036KDT1 HMH036KDT1


Electronic Control Device


Indoor Unit

• MAIN P.C.B DC ASM

Service Manual 15


Outdoor Unit

ASM P/N : 6871A20479APCB P/N : 6870A90186A

CN_OOO

C51M

R22M

D05M

ZD03M

TRA

NS6

2003.11.10

CN_P

OW

ER2

- ~

R36M

+~

R11M

BD01

M

NT

C

SMPS

C12M

C10D

1 3 65

R34M

C28M

C30M

C19M

C07M

Q06

M

C22M

R35M

Q09M

R24M

ZD02M

D06M

R37M

C32M

C33M

R25M

ZD01M

R23M

R12M

R10M

Q03M

D04

M

C23M

C10M

R13M

D02M

TRANS5

L10M

TRANS3

TRA

NS4

L011M

L12M

13 12

L09M

C29M

9 78

C17M

TRA

NS2

TRANS1

L02M

L08M

L07M

L06M

L05M

C18M

D03M

R09M

L01M

C06M

D01M

IC01

A

C08D

R02D

C04

D

C01D

L01D

Q08M

D01D

C31M

C25M

L02D

R33M

IC04D

C02D

C03D

C07D

C05D

R30M

R31M Q07

M

CN_LEV(C)

C52M

L01HC0

2A

RY_FAN(L)

IC01K

C26M

R32M

C27M

R28M

Q05

M

IC05

M

C14

M

C21M

R20M

C16M

C15M

R21M

R16M IC04M

IC03M

C02M

R29M

R27M

R26M

R19M

C24

M

CN_COM3

C13M

R18M

R14

M

R17M

R15M

CN_COM1

Q04

M

CN_COM2

RY_4WAY

R08M

Q02

M

R04

MR0

3M

C09M

C05M

R07M

C04

M

R06M

RY_LIQ

R02MC03M

RY_GAS

R01M

Q01

MC01M

IC03K

L4(D

)

L3(C

)

L2(B

)

L1(A

)

IC02K

Q01

Z

OSC

01B

CN_RY_FAN

CN_POWER1

RY_FAN(H)

R05M

3

RY_COMP(B)

C11M

L03M

L04

M

NF03M

CN_RY_SV

NF05M NF04M NF02M NF01M

SW01

F

CN_LEV(B) CN_LEV(A)

C50M

LED0

1T

CN_T

H1CN

_JIG

CN_T

H2

RY_COMP(A)

4

4

PCB P/N : 6870A90195AASM P/N : 6871A20500

C04J

R01J

NF01J

C07J

C05J C06J

NF02J

C09J

C03J

C01J

GND1

D01J

C02J

CN_TAB1(N)

ZNR01J

CN_POWER2

C08J

GND2

FUSE(250V/T5A)CN_TAB2(L)

CN_POWER1

• MAIN P.C.B DC ASM



Display P.C.B ASM

Service Manual 17

Schematic Diagram

Schematic Diagram

Indoor Unit

PKM

13EP

P-4

002

OSC

01B

3.6V

CST

-8.0

0MT

W

R21H

~R2

5H

50V

8

R11H

~R1

4H

R02F

12.1

K

C06D

103

AUT

O R

EST

ART

REM

OT

E CO

NT

ROL

FORC

ED O

PERA

TIO

N

SWIT

CHLI

MIT

CN-S

W

COM

NO

NC

123

123

Opt

ion

14 23

SW01

F

5V

5V 6.2K

R06F

R04

F6.

2K

470

uF25

V

C05D

+

DC5V

7805

1N4

148

D99

IC02

DO

I

470

uF25

V

C03D

104

50V

C04

D+

DC12

V

7812

IC01

DO

I

C DS Q

ST93

C46C

B6

R13H

R12H

20K

R11H

OJ2H

OJ1H

OJ3H

R14

H

5 93C4

6B

EEPR

OM

Vss

7 6DU O

RG

Vcc

OJ4H4321

210

K

+

50V

C02D

104

680u

F25

V

C01D

10K

R97

KA39

3IC

9-1

-4

OR2

HO

R5H

DC 5

V

R96

20K

OR3

H~0R

5HO

R4H

OR3

H

DC12

V3

1+

8

10K

OR1

H56

KR9

510

K

R21H

R24

H

R25H

5V

12.1

K1%

55

Ope

rati

on

RECE

IVERV

cc

GN

D

Vou

t

Slee

p

CMP

Tim

er

11

220

10V

C02L

LED2

LED1

LED4

LED3

44 5 2 6

5 62

CN-D

ISP

7 337

RDPK OR

YL

22 1

1

4 3

4 3

rece

iver

R01G

~R0

4G

220

STEP

PIN

G M

OT

OR

(UP/

DOW

N)

BLCN

-U/D

4

104

C02D

5V

11 1076

5V

45

48

35

46

47

1314

3334

2 646337325756 1

KID6

5004

AF

IC01

GKI

D650

04A

F

14 1213

3 54

9

1516

8 1 2

HVB

OUT

IC01

M

9

7 84 65

18

555450515253

1716

1920

2161

62

10

7

R01B

,1M

R01T

~R0

5T

8

5V

123

119

106

7

40

543

42

29 41

31 30 4438

220

0.01 R2

2H

R23H

25V

10V

R02A

,20K

C01A

5V

C02A

21

3

KID6

5004

AF

5924

2223

1560

25 26 36 28 2739

49

58

15 2

12 5

11 6

13 4

14 3

5V

16 1

9

8

IC02

M

R02L

,1K

C01L

680

pF

R81

1K

R02B

,10K

50V

C81

103

5V

rece

iver

R02E

,20

R01E

5.1K

R01L

1KBZ

01E

PK

321

2 2

STEP

PIN

G M

OT

OR

(LEF

T/R

IGHT

)

BL

3 3

4 4

5 5

1 1CN

-L/R

OR

YL

RD

Opt

ion

PIPE

-TH

2 3 4

DC12

V

CN-M

OT

OR

44

INDO

OR

FAN

MO

TO

R

33

22

11

DC 5

V

+

11

CN-D

C/DC

104

,50V

C07D

RXE2

50PO

LY S

W

~

100u

F63

V

C92

44

55

2 3

2 3

1/4

W75

0R9

9

11

11 42 3

HVB

OUT

+7

KSC7

536

IC01

AKI

A70

36P

5V

C91

103

1%

6.

2KR0

4H

KA39

3IC

9-2

R90

1KR9

3 10

K-

5

DC 5

VR9

2 10

KR9

14

.7K

6

1

%

CN-T

H1

1%

5V

12.1

KR0

2H

24 334 2

11

CN-T

H2

5V

6.2k

R26H

3 223

PIPE

-TH

ROO

M-T

H

12V

12

12

CN-H

VB

Opt

ion

33

HVB

OUT


Schematic Diagram

Outdoor Unit

P07

SW01

F

OR2

H,O

R7H,

OR1

0H:9

1K,O

R3H-

4H,

OR8

H-9H

,OR1

1H-1

2H:1

5K(E

TC:

20K)

R03T

11

DC 5

V

56K

R04

T1K

1 2

7036

P

IC01

A

CN-J

IG

3434

22

JIG

_RX

JIG

_TX

DC 5

V

10K

R01T

1KR02T

C01H

-C04

H : 1

03

P21

21

JIG

_RX

26

OSC

01B

CST

-8.0

0MG

W

JIG

_TX

+3

C02A 10

R03A

,100 50

V

25V

0.01

C01A

R02A

,4.7

KR0

1A,1

K

Xin

Vss

Xou

tR0

1B,1

M2524

P22

RESE

T2322

P20

19R0

1F,1

K

R02F

,10K

R02G

,10K

R01G

,10K

R04

G,1

0K

R03G

,10K

P32

29

30P3

3

2827

P31

P30

L4(C

)

L3(C

)

L1(A

)

L2(B

)

PWM

(A)

PWM

(C)

PWM

(B)

P53

P54

46

47

P52

45

51

P60

50

P62

P63

P61

5253

31

P37

34 35 36P4

1

P40

3332

P36

P35

RX(C

)

RX(B

)

TX

(C)

RX(A

)

TX

(B)

1413

P13

P12

P34

1110 12

P10

P11

TX

(A)

CN-L

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DC 5

V

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23 1

23 1

5 4

5 4

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4

220

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11

3 2

3 2

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55

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33

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P74

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39 40

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P46

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5V

Service Manual 19

Schematic Diagram

23.2

K

8.06

K

8.06

K

23.2

K

23.2

K

8.06

K

1% 1%

51.1

K

102

100V

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1%9.1k

R27M

100u

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5 46

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F25

V

C26M

R28M

13K

1%

15

+

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22

51.1

K

10K

1

2.94

K

67

4.7

K

PWM

(C)

35.7

K

4.3

K

R26M

10.2

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3 2121

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6.04

K

KRA

101M

Q07

MDC

5V

7

3K5.

23K

39.2

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K

2020

9 8

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102

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2.94

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67

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(B)

35.7

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4.3

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10.2

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4M

23121

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6.04

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DC 5

V

7

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39.2

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208

209

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51.1

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102

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820

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P(B)

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51.1

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334

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1M

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473

KC2

7M

28

10K

R32M

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680u

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102M

561*2

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D

35V

470

UF

12uH

L01D

1000

UF

35V

220u

FC0

5D 10V

220u

FC0

3D

DC 5

V

DC 1

5V

IC04

D

C06D

50V

10378

05

C07D

50V

++

103

C02D

470

uF

+

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MT

15V

C08D 10

3

50V

L02D

12uH

D101 FB

12

OUT

R202

9 7

+

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GN

D

PC20

1

D201

R201

D202

268

C102BPTN

Y

S

D

13

+

C101

R102

OUT

GN

D

3N

C

DC 0

V65

PC20

1

GN

D

NC

DC 3

10V

1IN

R101

D01D

1N4

937

RY-F

AN

(L)

RY-F

AN

(H)

RY-G

AS

LIV

E1

33

CN-P

OW

ERN

EUT

RAL

1

FUSE

ZN

R01J

250V

/T5A

INR1

4D4

71K

SVC5

61D-

14A

1

COM

P B

COM

P A

43

LIV

E2

43

NF0

1M

HOT

GA

S

FAN

LO

W

FAN

HI

1 1

NF0

2M

1 1

1

NF0

4M

NF0

3M

1

CN-F

AN

COM

(A)

COM

(B)

COM

(C)

DKS-

10D-

22 1/2W

560K

R11M

51.1

K

472

/250

VC1

9M

C16M

100V

473

K

8 210

KR2

0M

IC05

M

63V

C17M

680u

F

+

C18M

821K

1KV

L06M

L05M

FMX

12S

D03M

Q02

M2S

D222

0

51.1

K

R06M

220

334

KR0

8M10

0K

1.5K

103K

100V

R09M

C09M

Vm

(A)

ERB-

44

-08

D04

M

84

6

S/W

TRA

NS3

L08M

L07M

112

C23M

1KV

222K

R23M

3W68K

C22M

MT

15V

94S/

W T

RAN

S2

3

2

7Q

03M

30,1

WR1

3M

ZD0

1M12

V20

0R1

2M

472

/250

VC0

7M

C04

M4

73K

100V

8 2

R07M

10K

IC04

M

C05M

+

63V

680u

FC0

6M82

1K1K

V

L02M

L01M

D01M

FMX

12S

ERB-

44

-08

D02M

84

6

S/W

TRA

NS1

L03M

L04

M

112

1KV

C11M

222K

3W68K

R10M

C10M

+N

TC

450

V33

0UF

C12M

COM

(B)

320

TX

(B)

1KR1

4K

102

C03K

TX

(C)

RX(C

)

RX(B

)

RY-L

IQ

RY-4

WA

Y

R15K10

KR1

2K

10K

R16K

3 21

8 4

20

8 4

75 6

R10K 1K

C02K

102

21

4

IC03

K

4

75 6

8

COM

(C)

DC 1

5V

Vm

(C)

Vm

(B)

DC 1

5V

DC 0

V

BD01

MD1

5XB6

0

DC 3

10V

RX(A

)

DC 1

5V

TX

(A)

DC 5

V

R13K 1K

1KR0

1K1K

R09K

10K

R07K

R05K

R11K

10K

C01K1K

102

8 4

75 6

10K

R06K

IC02

K

10K

R08K

8

R02K

R04

K

10K

R03K

IC01

K 231

8 4

20

COM

(A)

Vm

(A)

DC 1

5V

LIQ

UID

1

NF0

5M

1

1 1

4W

AY

32 4

32 4

3 14

3 1

CN-C

OM

3

4

4 1 2

4 1 2

CN-C

OM

2

2 31

CN-C

OM

1

2 31


Functions

Functions

• Room temperature sensor. (THERMISTOR)

• Maintains the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 seconds at the starting.

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low, Chaos

--- Lights up in operation--- Lights up in Sleep Mode--- Lights up in Timer Mode

--- Lights up in Deice Mode(for Heat pump model)

--- Lights up in Compressor operation(for Cooling model)

• Intermittent operation of fan at low speed.

• The fan is switched to low(Cooling), med(Heating) speed.• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

• The fan is switched to intermittent or irregular operation• The fan speed is automatically switched from high to low speed.

• The louver can be set at the desired position or swingup and down automatically.

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Operation indication Lamps (LED)

OUTDOOR

Health Dehumidification Operation

• Both the indoor and outdoor fanstops during deicing.

• Hot start after deice ends.

• The indoor fan stops until theevaporator piping temperature will bereached at 28°C.

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic

Airflow Direction Control

Deice (defrost) control (Heating)

Hot-start Control (Heating)

Service Manual 21

Functions

Remote Controller

JET COOL

Healthy Dehumidification Operation Mode.( )

Operation Mode Selection

(Cooling model only)

(Heating model only)

Cooling Operation Mode.( )

Heating Operation Mode.( )

Auto Operation Mode.( )

Sleep Operation

˚C To ˚F Swtiching Button

Room, Temperature Display

Setting the Time or Timer

Airflow Direction Control

Operation ON/OFF

Temperature SettingTEMPERATURE LOWHIGH

Timer SelectionON OFF

˚C / ˚F

Timer SettingSET

Timer CancelCANCEL

Fan Operation Mode

Reset

Fan Speed Selection

(Low) (Med) (High) (CHAOS)

Down to 18°C(64˚F)

Up to 30°C(86˚F)Cooling

: Cancel Sleep Mode, Timer ON or Timer OFF

: 1, 2, 3, 4, 5, 6, 7, Off Timer

: Fan Operates without cooling or heating.

: High: 39°C(102˚F) LOW : 11°C(52˚F)

Down to 16°C(60˚F)

Up to 30°C(86˚F)Heating

: OFF, ON, OFF ON


Display Function

Self-diagnosis Function

Display Function

1

(3times)

3sec 3sec

(5times)

3sec

(twice)

3sec 3sec

(once)

3sec 3sec 3sec

2

3

5

8

ErrorCode

Error LED(Indoor body operation LED)

Error contents SVC check point

• Indoor suction temperature thermistor open/short.

• Indoor pipe temperature thermistor open/short.

• Indoor TH ass'y check

• Outdoor TH ass'y check

• Resetting of remocon operating mode

• Communication line/circuit check

• Outdoor suction temperature thermistor open/short.

• Outdoor pipe temperature thermistor open/short.

• Abnormal operation of multi product. (Simultanueous operation of cooling and heating)

• Indoor fan lock

• Poor communication

• Check indoor fan motor and outdoor PCB ass'y

• Cooling, Soft Dry, Fan, Heating • Cooling, Soft Dry, Fan

• Sleep Mode • Sleep Mode

• Timer Mode • Timer Mode

• Hot-start, Defrost

Operation Indicator

Timer Indicator

Sleep Timer Indicator

Defrost Indicator

Operation Indicator

Timer Indicator

Sleep Timer Indicator

Compressor on IndicatorOUT

DOOR

Error Indicator

• The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.• Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.• If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.• After error occurrence, if error is released, error LED is also released simultaneously.• To operate again on the occurrence of error code 12, be sure to pull out power cord and then re-insert.• Having or not of error code is different from Model.

1. Heating Model 2. Cooling Model

Service Manual 23

Operation Details

Operation Details

Main Unit Function1) C/O Model

Operation Indicator• On while in appliance operation, off while in appliance pause• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)

Sleep Timer Indicator• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause

Timer Indicator• On while in timer mode (on/off), off when timer mode is completed or canceled.

Comp. Running Incidator• While in appliance operation, on while in outdoor unit compressor running, off while in compressor off

2) H/P Model

Operation Indicator• On while in appliance operation, off while in appliance pause• Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)

Sleep Timer Indicator• On while in sleep timer mode, off when sleep timer cancel or appliance operation pause

Timer Indicator• On while in timer mode (on/off), off when timer mode is completed or canceled

Defrost Indicator• Off except when hot start during heating mode operation or while in defrost control

Cooling Mode Operation• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan

stop.• When it reaches 0.5°C above the setting temp, they start to operate again.

Compressor ON Temp Setting Temp+0.5°CCompressor OFF Temp Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote control. While in compressornot running, operating with the low airflow speed regardless of the setting.

Healthy Dehumidification Mode• When the dehumidification operation input by the remote control is received, the intake air temperature is

detected and the setting temp is automatically set according to the intake air temperature.26°C ≤ Intake Air Temp 25°C24°C ≤ Intake Intake Air Temp<26°C Intake Air Temp-1°C18°C ≤ Intake Intake Air Temp<24°C Intake Air Temp-0.5°CIntake Air Temp<18°C 18°C


Operation Details

• While in compressor off, the indoor fan repeats low airflow speed and pause.• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidifica-

tion operation and 4-min compressor off repeat.Compressor ON Temp. Setting Temp+0.5°CCompressor OFF Temp. Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

Heating Mode Operation(H/P model)• When the intake air temp reaches +3°…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.+3°C

• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 20°C, when above 28°C , itoperates with the low or setting airflow speed. When the indoor pipe temp is between 20°C and 28°C, it oper-ates with Super-Low(while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C, when above 35°C , itoperates with the low airflow speed.

• If overloaded while in heating mode operation, in order to prevent the compressor from OLP operation, theoutdoor fan is turned on/off according to the indoor pipe temp.

• While in defrost control, both of the indoor and outdoor fans are turned off.

Defrost Control(H/P model)• Defrost operation is controlled by timer and sensing temperature of outdoor pipe.• The first defrost starts only when the outdoor pipe temperature falls below -6°C after 45 minutes passed from

starting of heating operation and more than 10 minutes operation of compressor.• Defrost ends after 9/6 minutes passed from starting of defrost operation or after the outdoor fan operates

within max. 2 minutes 30 seconds when the outdoor pipe temperature rises over 12°C even it before 12 min-utes.

• The second defrost starts only when the outdoor pipe temperature falls below -6°C after 45 minutes passedfrom ending of the first defrost and more than 10 minutes operation of compressor.

Heating overload(H/P models)• Outdoor fan ON/OFF by sensing outdoor pipe temperature.• Outdoor fan is OFF if pipe temperature is over 6.5°C and outdoor fan is ON if pipe temperature is below 0°C.• Outdoor fan is off if any one part is heating overload condition.

Service Manual 25

Operation Details

Fuzzy Operation (C/O Model)• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting

temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.Compressor ON Temp Setting Temp + 0.5°CCompressor OFF Temp Setting Temp + 0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.26°C ≤ Intake Air Temp 25°C24°C ≤ Intake Air Temp < 26°C Intake Air Temp + 1°C22°C ≤ Intake Air Temp < 24°C Intake Air Temp + 0.5°C18°C ≤ Intake Air Temp < 22°C Intake Air TempIntake Air Temp<18°C 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, theFuzzy key value and the intake air temperature at that time are compared to select the setting temperatureautomatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to thetemperature.

Fuzzy Operation (H/P Model)• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since

the operation off, the operation mode is selected.• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only

the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake airtemp at that moment as follows.24°C ≤ Inatake Air Temp Fuzzy Operation for Cooling21°C ≤ Inatake Air Temp<24°C Fuzzy Operation for DehumidificationInatake Air Temp<21°C Fuzzy Operation for Heating

• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more belowthe setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressoris turned on.Compressor ON Temp Setting Temp +0.5°CCompressor OFF Temp Setting Temp + 0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.26°C≤ Intake Air Temp 25°C24°C≤ Intake Air Temp<26°C Intake Air Temp + 1°C22°C≤ Intake Air Temp<24°C Intake Air Temp + 0.5°C18°C≤ Intake Air Temp<22°C Intake Air TempIntake Air Temp<18°C 18°C


• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the tem-perature.


Operation Details

2) Fuzzy Operation for Dehumidification

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more belowthe setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressoris turned on.Compressor ON Temp Setting Temp + 0.5°CCompressor OFF Temp Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.26°C ≤ Intake Air Temp 25°C24°C ≤ Intake Air Temp<26°C Intake Air Temp+1°C22°C ≤ Intake Air Temp<24°C Intake Air Temp+0.5°C18°C ≤ Intake Air Temp<22°C Intake Air TempIntake Air Temp<18°C 18°C


• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as indehumidification operation.

3) Fuzzy Operation for Heating

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more abovethe setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.Compressor ON Temp Setting TempCompressor OFF Temp Setting Temp + 3°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.20°C≤Intake Air Temp Intake Air Temp + 0.5°CIntake Air Temp<20°C 20°C


• While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to theintake air temperature and the setting temperature.

Airflow Speed Selection• The airflow speed of the indoor fan is set to high, medium, low, or chaos (auto) by the input of the airflow

speed selection key on the remote control.

On-Timer Operation• When the set time is reached after the time is input by the remote control, the appliance starts to operate.• The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached.• If the appliance is operating at the time set by the timer, the operation continues.

Service Manual 27

Operation Details

Off-Timer Operation• When the set time is reached after the time is input by the remote control, the appliance stops operating.• The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached.• If the appliance is on pause at the time set by the timer, the pause continues.

Off-Timer <=> On-Timer Operation• When the set time is reached after the on/off time is input by the remote control, the on/off-timer operation is

carried out according to the set time.

Sleep Timer Operation• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote control while in appli-

ance operation, the operation of the appliance stops.• While the appliance is on pause, the sleep timer mode cannot be input.• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperature

increases by 1°C. After another 30 min elapse, it increases by 1°C again.• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set to

the low.• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set to

the medium.

Chaos Swing Mode• By the Chaos Swing key input, the upper/lower vane automatically operates with the Chaos Swing or they are

fixed to the desired direction.• While in Chaos Swing mode, the angles of cooling and heating cycle operations are different.

Chaos Natural Wind Mode• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the air-

flow mode is operated for 2~15 sec. randomly by the Chaos Simulation.

Jet Cool Mode Operation (C/O Model)• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

Jet Cool Mode Operation (H/P Model)• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in the othermode operation (cooling, dehumidification, ventilation), the Jet Cool mode is operated.• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C.• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.


Operation Details

Auto Restarting Operation• When the power is restored after a sudden power failure while in appliance operation, the mode before the

power failure is kept on the memory and the appliance automatically operates in the mode on the memory.• The slide switch on the main unit of the appliance should be on the Auto Restarting position in order that the

Auto Restarting operation is available.• Operation Mode that is kept on the memory

- State of Operation ON/OFF- Operation Mode/Setting Temp/Selected Airflow Speed- Sleep Timer Mode/Remaining Time of Sleep Timer (unit of hour)

Slide Switch

FORCEDOPERATION

AUTORESTART

REMOTECONTROL

Forced Operation (C/O Model)• To operate the appliance by force in case that the remote control is lost, the forced operation selection switch

is on the main unit of the appliance to operate the appliance in the standard conditions.• When the power is supplied while the slide switch is on the forced operation position, or when the slide switch

position is switched to the Auto Restarting position (or test operation) or switched from the remote control posi-tion to the forced operation position while the power is on, the forced operation is carried out.

• When the slide switch position is switched from the forced operation position to the Auto Restarting position orthe remote control position, the forced operation is canceled and the appliance stops operating.

• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed ofairflow.

• While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times toindicate the forced operation.

Forced Operation (H/P Model)• To operate the appliance by force in case that the remote control is lost, the forced operation selection switch

is on the main unit of the appliance to operate the appliance in the standard conditions.• When the power is supplied while the slide switch is on the forced operation position, or when the slide switch

position is switched to the Auto Restarting (or test operation) position or switched from the remote control posi-tion to the forced operation position while the power is on, the forced operation is carried out.

• When the slide switch position is switched from the forced operation position to the Auto Restarting position orthe remote control position, the forced operation is canceled and the appliance stops operating.

• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed of airflow.• In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operation

condition is set according to the intake air temperature as follows.24°C≤Intake Air Temp Cooling Mode Operation, 22°C, High Speed21°C≤Intake Air Temp<24°C Dehumidification Operation, 23°C, High SpeedIntake Air Temp<21°C Heating Mode Operation, 24°C, High Speed

• While in forced operation, the key input by the remote control has no effect and the buzzer sounds 10 times toindicate the forced operation.

Service Manual 29

Operation Details

Remote Control Operation Mode• When the remote control is selected by the slide switch on the main unit, the appliance operates according to

the input by the remote control.

Protection of the evaporator pipe from frosting• If the indoor pipe temp is below 0°C in 7 min. after the compressor operates without any pause while in cool-

ing cycle operation mode, the compressor and the outdoor fan are turned off in order to protect the indoorevaporator pipe from frosting.

• When the indoor pipe temp is 7°C or higher after 3 min. pause of the compressor, the compressor and theoutdoor fan is turned on according to the condition of the room temperature.

Buzzer Sounding Operation• When the appliance-operation key is input by the remote control, the short "beep-beep-" sounds.• When the appliance-pause key is input by the remote control, the long "beep—" sounds.• When a key is input by the remote control while the slide switch on the main unit of the appliance is on the

forced operation position, the error sound "beep-beep-beep-beep-beep-" is made 10 times to indicate that theremote control signal cannot be received.


2-way, 3-way Valve

2-way, 3-way Valve

2-way Valve (Liguid Side) 3-way Valve (Gas Side)

Works Shaft position Shaft position Service port

Shipping Closed Closed Closed(with valve cap) (with valve cap) (with cap)

Air purging Open Closed Open(Installation) (counter-clockwise) (clockwise) (push-pin or with

vacuum pump)

Operation Open Open Closed(with valve cap) (with valve cap) (with cap)

Pumping down Closed Open Open(Transfering) (clockwise) (counter-clockwise) (connected

manifold gauge)

Evacuation Open Open Open(Servicing) (with charging

cylinder)

Gas charging Open Open Open(Servicing) (with charging

cylinder)

Pressure check Open Open Open(Servicing) (with charging

cylinder)

Gas releasing Open Open Open(Servicing) (with charging

cylinder)

3.

2.

1.

4.

5.

6.

Flare nut

To piping connection

Open positionClosed position

Flare nut

Valve cap

To piping connection

Open positionClosed position

Hexagonal wrench(4mm)

To outdoor unit

Pin

Service port

Service port cap

To outdoor unit

Service Manual 31

2-way, 3-way Valve

• Procedure1. Confirm that both the gas side and liquid side

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 operatethe valve stems.

2. Operate the unit for 10 to 15 minutes.

3. Stop operation and wait for 3 minutes, then con-nect the manifold gauge to the service port ofthe gas side valve.- Connect the hose of the gauge with the push

pin to the service port.

4. Air purging of the charge hose.- Open the Low-handle valve on the gauge

slightly to air purge from the hose.

5. Set the liquid side valve to the closed position.

6. Operate the air conditioner at the cooling cycleand stop it when the gauge indicates 1kg/cm2g.

7. Immediately set the gas side valve to the closedposition.- Do this quickly so that the gauge ends up indi-

cating 1kg/ g.

8. Disconnect the charge set, and mount the liquidside and gas side valve caps and the serviceport nut.- Use torque wrench to tighten the service port

nut to a torque of 1.8kg.m.(4.2kg*m/5.5kg*m)

- Be sure to check for gas leakage.

Indoor unit

Outdoor unit

Liquid side

Close

Gas side

2-Wayvalve

Open3-Wayvalve

manifold gauge

Indoor unit Liquid side

Close

Gas side

2-Wayvalve

Open3-Wayvalve

Hi- handle(CLOSE)

Low-handle(CLOSE)

(1) Pumping down


2-way, 3-way Valve

(2) Evacuation(All amount of refrigerant leaked)

• Procedure1. Confirm that both the liguid side valve and gas

side valve are set to the opened position.

2. Connect the vaccum pump to the center hose ofthe manifold gauge.

3. Connect the service port of the gas side valve tothe low side of the gauge.

4. Connect power supply to outdoor unit.5. Evacuation for approximately one hour.

- Confirm that the gauge needle has movedtoward-76 cmHg (vacuum of 4 mmHg or less).

6. Close the Low handle of the gauge turn off thevacuum pump, and confirm that the gauge nee-dle does not move(approximately 5 minutesafter turning off the vacuum pump).

7. Disconnect the charge hose from the vacuumpump.- Vacuum pump oil.

If the vacuum pump oil becomes dirty or deplet-ed,replenish as needed.

8. Mount the valve caps and the service port caps.

Indoor unit

Outdoor unit

Liquid side

Open

Gas side

2-Wayvalve

Open3-Wayvalve

manifold gauge


Open

Gas side

2-Wayvalve

Open3-Wayvalve

Vacuum pump

Hi- handle(OPEN)

Low-handle(OPEN)

Service Manual 33

2-way, 3-way Valve

(3) Gas Charging(After Evacuation)

• Procedure1. Connect the gauge to the charging cylinder.

- Connect the charge hose which you disconnect-ed from the vacuum pump to the valve at thebottom of the cylinder.

- If you are using a gas cylinder, also use a scaleand reverse the cylinder so that the system canbe charged with liquid.

2. Purge the air from the charge hose.- Open the valve at the bottom of the cylinder and

press the check valve on the charge set to purgethe air. (Be careful of the liquid refrigerant). Theprocedure is the same if using a gas cylinder.

3. Open the low handle on the gauge and chargethe system with liquid refrigerant.- If the system can not be charged with the speci-

fied amount of refrigerant, it can be chargedwith a little at a time (approximately 150g eachtime) while operating the air conditioner in thecooling cycle; however, one time is not suffi-cient, wait approximately 1 minute and thenrepeat the procedure(pumping down-pin).

4. Immediately disconnect the charge hose fromthe gas side valve's service port.

- Stopping partway will allow the gas to be dis-charged.

- If the system has been charged with liquidrefrigerant while operating the air conditionerturn off the air conditioner before disconnectingthe hose.

5. Mount the valve stem nuts and the service portnut.- Use torque wrench to tighten the service port

nut to a torque of 1.8 kg.m.(4.2kg.m/5.5kg.m.)- Be sure to check for gas leakage.

manifold gaugeChargingcylinder

Hi- handle(OPEN)

Low-handle(OPEN)Check valve

Indoor unit

Outdoor unit

Liquid side

Open

Gas side

2-Wayvalve

Open3-Wayvalve


Open

Gas side

2-Wayvalve

Open3-Wayvalve

This is different from previous procedures.Because you are charging with liquid refrigerantfrom the gas side, absolutely do not attempt tocharge with larger amounts of liquid refrigerantwhile operating the air conditioner.


Cycle Troubleshooting Guide

Cycle Troubleshooting GuideTrouble analysis1. Check temperature difference between intake and discharge air and operating current.

All amount of refrigerant leaked out.Check refrigeration cycle.

Refrigerant leakageClog of refrigeration cycleDefective compressor

Excessive amount of refrigerant

Normal

Notice:Temperature difference between intake and discharge air depends on room air humidity. When the room airhumidity is relativery higher, temperature difference is smaller. When the room air humidity is relatively lowertemperature difference is larger.

2. Check temperature and pressure of refrigeration cycle.

Notice:1. The suction pressure is usually 4.5~6.0 kg/cm2G at normal condition.2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with

putty.

Temp. difference : approx. 0°CCurrent : less than 80% of

rated current

Temp. difference : approx. 8°CCurrent : less than 80% of

rated current

Temp. difference : less than 8°CCurrent : over the rated

current

Temp. difference : over 8°C

Temp. Difference

Operating Current

Suction pressure Temperature(Compared with (Compared with Cause of Trouble Description

the normal value) the normal value)

High Defective compressor Current is low.Defective 4-way reverse valve

Normal Excessive amount of High pressure does not quicklyrefrigerant rise at the beginning of operation.

Insufficient amount of Current is low.Lower Higher refrigerant(Leakage)

Clogging Current is low.

Higher

Service Manual 35

Electronic Parts Troubleshooting Guide


(* Refer to Electronic Control Device drawing and Schematic diagram.)

Turn off Main Power

Turn on Main Power

Does "beeping" sound is made from the Indoor Unit?

Primarily, the operating condition of Micom is OK.Check the voltage of power(About AC 220V/AC240V, 60Hz)

• Main power's voltage• Voltage applied to the unit• Connecting method of Indoor/Outdoor connecting

cable• Check Fuse (Outdoor PCB Ass'y)• Check Varistor

ZNRØ1J(Outdoor PCB Ass'y)

Check the connection housing for contacting

• Connector related to CN-DC/AC• Display PWB Ass'y Check

Check each load(Indoor/Outdoor Fan Motor,Compressor, Stepping Motor etc.) and contactingcondition of related connector

PCB Board Operation Check

Items

• Power Transformer(Outdoor unit)- Input Voltage- Output Voltage

• IC01D(7812) Output(Indoor/Outdoor unit)


• IC01A(KIA7036, Reset IC)X01(8MHz)

• Replace Trans

• Replace IC01D

• Replace IC02D

• Replace faulty parts

- About AC220V/240V±10% - Check the power voltage- About AC14±3V

• DC +12V

• DC +5V

• Voltage of Micom No. 2,(DC +4.5V over) and Soldering condition.

Content Remedy

NO YES

(After 10 seconds)

1. The Outdoor Unit does not operate at all



Turn on Main Power

While the compressor has been stopped, the compressor does notoperate owing to the delaying function for 3 minutes after stopped.

Caused by other parts except the remote controlCause by the remote control

When the mark( ) is displayed in LCD screen, replacebattery.

Check the contact of CN-DISPI connector.

When the compressor stopped Indoor Fan is driven by a low speed.At this point the wind speed is not controlled by the remote controller.(When operated in the Sleeping Mode, the wind speed is set to thelow speed by force.)

Check DISP PWB Ass'y- Voltage between CN DISP1 - : DC +5V

When the detect switch(double key) inside the remotecontroller door is fault, it is impossible to operatetemperature regulating( / ) and wind speed selecting.

Check the connecting circuit between the remote con-troller MICOM (No. ) - R17(2Ω) - IR LED - Q1 -R16(2.2KΩ).

Check point

• Check the connecting circuit between PIN -R01L(1K) - C01L(680PF) - MICOM PIN

• Check Receiver Ass'y

2. The product is not operate with the remote controller.

Service Manual 37


3. When cooling does not operate

Turn on Main Power

Operate "Cooling Mode( )" by setting the desired temperature of theremote controller is less than one of the indoor temperature by 1°C at least.

When in Air Circulation Mode, Compressor/Outdoor Fan is stopped.

Check the sensor for indoor temperature is attached as close as to beeffected by the temperature of Heat Exchanger(EVA).

When the sensor circuit for indoor temperature and connector are in badconnection or are not engaged, Compressor/Outdoor Fan is stopped.

• Check the related circuit of R02H(12.1K), R01H(1.0K), R04H(6.2K),R03H(1.0K) (Indoor unit).

• Check the indoor temperature sensor is disconnected or not(About 10kΩ / at 25°C).

Check if connection line (Indoor/Outdoor) is complied with Wiring Diagram.

Check Outdoor Unit(PCB Ass'y)

Correct connection line

Good connection Bad connection



4. When indoor Fan does not operate.(or "ON/OFF" led of display blinks 8 times)

Turn off Main power

Check it (Indoor/Outdoor)the connection line is complied with Wiring Diagram

Check the line fuse in the outdoor unit

Check the connection of CN-MOTOR

check the operation of blower by manual


Check POLY S/W in indoor PCB Ass'y

If it is opened If it is shorted

Exchange Indoor PCB Ass'y Check the outdoor PCB Ass'y

Bad connection Good connection

Service Manual 39


5. When Vertical Louver does not operate.

• Confirm that the Vertical Louver is normally geared with the shaft ofStepping Motor.

• If the regular torque is detected when rotating the Vertical Louver withhands Normal

• Check the connecting condition of CN-U/D Connector• Check the soldering condition(on PWB) of CN-U/D Connector

If there are no problems after above checks

• Confirm the assembly conditions that are catching and interfering partsin the rotation radial of the Vertical Louver

Check the operating circuit of the Vertical Louver

• Confirm that there is DC +12V between pin (RED) of CN-U/D andGND.



6. When Heating does not operate

Operate “Heating Mode( )” by setting the desired temperature of theremote control is higher than one of the indoor temperature by 2°C atleast.

In heating Mode, the indoor fan operates in case the pipe temperatureis higher than 28°C.

Check the connector of intake and pipe sensor(thermistors)

• Check the related circuit of R02H(12.1K), R01H(1.0K), R04H(6.2K),R03H(1.0K).

• Check the indoor room temperature is disconnected or not (about10KΩ/at 25°C).

• Check the indoor pipe temperature is disconnected or not (about5KΩ/at 25°C).

Turn ON Main Power

Check if connection line (Indoor/Outdoor) is complied with Wiring Diagram.

Check Outdoor Unit(PCB Ass'y)


Good connection Bad connection

Service Manual 41


7. Outdoor unit does not operate at all.

8. Communication error

PCB Board Operation Check in Outdoor

Items

• Power Transformer(Outdoor unit)- Input Voltage- Output Voltage



• IC01A(KIA7036, Reset IC)X01(8MHz)

• Replace Trans

• Replace IC01D

• Replace IC02D

• Replace faulty parts

- About AC220V/240V±10% - Check the power voltage- About AC14±3V

• DC +12V

• DC +5V

Content Remedy

• The control data can be transmitted or received between indoor and outdoor unit with one signal cable.

• If the data be disturbed by any noise level and misconnection, the unit will be operated incorrectly. In thiscase, the indoor unit blinks the operation and operation LED on display and indoor fan, outdoor fan, COMPare not operated.

• The unit can be reoperated by On/Off control of Remocon.

Check Outdoor Unit

Turn off Main Power

• Check the electrical wiring diagram of outdoor side.• Check the abnormal condition for the component of

Compressor/Outdoor Fan Motor/4-way.• Check the “open” or “short” of connecting wires between indoor and

outdoor.


Installation

Installation(1) Installation of Indoor, Outdoor unit

Front

Right Rear right

Rear left

Down right

Left

More than 5 cm

More than eye-level

More than5 cm

More than5 cm

more than 70cm(27.6 inch)



A

B

Indoor unit

Outdoor unit

1) Selection of the best location1. Indoor unit

• There should not be any heat source or steamnear the unit.

• There should not be any obstacles to preventthe air circulation.

• A place where air circulation in the room will begood.

• A place where drainage can be easily obtained.

• A place where noise prevention is taken intoconsideration.

• Do not install the unit near the door way.

• Ensure the spaces indicated by arrows fromthe wall, ceiling, fence, or other obstacles.

2. Outdoor unit• If an awning is built over the unit to prevent

direct sunlight or rain exposure, be careful thatheat radiation from the condenser is notrestricted.

• There should not be any animals or plantswhich could be affected by hot air discharged.

• Ensure the spaces indicated by arrows fromthe wall, ceiling, fence, or other obstacles.

3. Piping length and the elevation

Pipe Size

GAS LIQUID

Max. pipinglengthA (m)

Max.Elevation

B (m)

1/2"(3/8") 1/4" 15 7.5

Service Manual 43

Installation

2) Indoor Unit InstallationThe mounting wall should be strong and solidenough to protect it from the vibration.

1. Mount the installation plate on the wall withfour Type "A" screws.(If mounting the unit on the concrete wall, consid-er using anchor bolts.)

• Always mount the Installation plate horizontallyby aligning the marking-off line by means of thethread and a level.

2. Drill the piping hole with 70mm dia. holecoredrill.• Line according to the arrows marked on lower

the left and the rght side of the Installation Plate.The meeting point of the extended line is thecenter of the hole.

• Drill the piping hole at either the right or the leftand the hole should be slightly slant to the out-door side.

Installation Plate

marking-off line

Thread

Weight

Type "A" screw

ø70mm ø70mm

5~7m

m

A

A

A

A

Indoor Outdoor

Wall

Left rear piping Right rear piping

The lower left and the right side ofInstallation Plate


Installation

1) Preparation of pipings1. Cut the pipes and the cable.

• Use the accessory piping kit or the pipes pur-chased locally.

• Measure the distance between the indoor andthe outdoor unit.

• Cut the pipes a little longer than the measureddistance.

• Cut the cable 1.5m longer than the length of thepipe.

2. Remove burrs.• Remove burrs from cut edges of pipes.

• Turn the pipe end toward down to avoid themetal powder entering the pipe.

Caution:If burrs are not removed, they may cause a gasleakage.

3. Flaring the pipes.• Insert the flare nuts, mounted on the connection

ports of both indoor and outdoor unit, onto thecopper pipes. Some refrgerant gas may leak,when the flare nuts are removed from the indoorunit, as some gas is charged to prevent theinside of the pipe from rusting.

• Fit the copper pipe end into the Bar of flare toolabout 0~0.5mm higher. (See illustration)

• Flare the pipe ends.

4. Tape the flaring portion to protect it from thedust or damages.

90 Slanted

Pipe cutter

Rough

Reamer

Pipe

Point down

"A"

Bar

Copper pipe Clamp handle Red arrow mark

Cone

BarYoke

Handle

Inclined Cracked Uneventhickness

Surfacedamaged

= Improper flaring =

When properly flared, the internal surface flare willevenly shine and be of even thickness.Since the flare part comes into contact with the connec-tors, carefully check the flare finish.

"A"; ø12.7 mm (1/2") →0~0.5 mmø9.52 mm (3/8") →0~0.5 mmø6.35 mm (1/4") →0~0.5 mm

(2) Piping and Drainage of Indoor Unit

Service Manual 45

Installation

2) Connection of Pipings1. Remove the installation plate

• Pull the two '∆' marked portion of bottom of thechassis and pull the installation plate out of chas-sis.

2. Route the drain hose and the indoor tubing.

For left rear piping

3. Route the tubing and the drain hose straightbackwards(see figure).

4. Insert the connecting cable into the indoorunit through the piping hole.• Do not connect the cable to the indoor unit.

• Make a small loop with the cable for easy con-nection later.

5. Tape the tubing, drain hose and the connectingcable. Be sure that drain hose locates at thelowest side of the bundle.Locating at the upper side can be a reason thatdrain water overflows drain pan inside the unit.

Installation plate

Pull

Pull

Connecting cable

Gas side piping

Liquid side pipingDrain hose

• To remove the holder, pressthe bottom of the chassisnear the holder upwardsand the tab is clear of itshole.

• Turn it clockwise approx.90° and remove it.

Tubing holder

Press

Pull


Installation

Connectingcable

Drain hose

Indoor unit tubing Flare nut Pipings

SpannerTorque wrench

Plastic bandsInsulation material

Press the lower left and right side of the unitagainst the Installation Plate until the hooksengage with their slots (sound click).

6. Indoor unit installation.• Hook the indoor unit onto the upper position of

the installation plate. (Engage the two hooks ofthe rear top of the indoor unit with the upperedge of the installation plate.)Ensure the hooks are properly seated on theinstallation plate by moving it in left and right.

7. Connecting the pipings to the indoor unit.• Align the center of the pipings and sufficiently

tighten the flare nut with fingers.

• Finally, tighten the flare nut with torque wrenchuntil the wrench clicks.Wrench tightening the flare nut with forquewrench, ensure the direction for tightening fol-lows the arrows on the wrench.

8. Wrap the insulation material around the con-necting portion.

CAUTION: Take care to arrange the pipings,drain hose and cables as the rightupper picture for inserting it into theindoor unit and refixing the tubingholder easily.

Pipe Size Torque

Liquid Side (1/4") 1.8kg m

Gas Side (3/8") 4.2kg m

Gas Side (1/2") 5.5kg m

Wrap the insulation material around the connectingportion.

Service Manual 47

Installation

9. Set the pipings and the connecting cable tothe back of the chassis with the tubingholder.• Hook the edge of tubing holder to tap on chas-

sis and push the bottom of tubing holder to beengaged in the bottom of chassis.

10. Indoor unit installation.• Hook the indoor unit onto the upper portion of

installation plate. (Engage the two hooks of therear top of the indoor unit with the upper edgeof the installation plate.)Ensure the hooks are properly seated on theinstallation plate by moving it in left and right.

Drain hose

Tubing holder

Taping

Piping

Push2

Hook1

Connectingcable

Drain hose

Press the lower left and right side of the unitagainst the Installation Plate until the hooksengages with their slots (sound click).


Installation

Gas side piping

Gas side piping

Evaporator side piping

Evaporator side piping

Torque wrench

B-UNIT

C-UNIT

A-UNITOutdoor unit

A

B

C

1) Connecting the pipings to the Outdoorunit

1. Align the center of the pipings and sufficientlytighten the flare nut with fingers.

2. Finally, tighten the flare nut with torquewrench until the wrench clicks.• When tightening the flare nut with torque wrench,

ensure the direction for tightening follows thearrow on the wrench.

Pipe Size Torque

Liquid Side (1/4") 1.8kg.m

Gas Side (3/8") 4.2kg.m

Gas Side (1/2") 5.5kg.m

(3) Connecting Pipings and the cable to Outdoor unit

Service Manual 49

Installation

Outdoor unit

GN/YL

20mm

GN/YL

20mm

AWG 18

AWG 12

WARNINGWARNING

NOTENOTE

Over 5mm

Holder forpower supply

cord

Connectingcable

Cover control

Terminal block

Power supplycable

A-UNIT

SVGC

B-UNIT

SVGC

C-UNIT

SVGC

Terminal BLOCK

SVGC

Terminal BLOCK

SVGC

L1 L2

Power Source208/230V AC(High voltage)

Indoor A-UNIT Indoor B-UNIT

Terminal BLOCK

SVGC

Indoor C-UNIT

Connecting cable(Low voltage)Connecting cable(Low voltage)Connecting cable(Low voltage)

Connection of the cable1. Remove the cover control from the unit by

loosening the screw.

2. Dismount caps on the conduit panel.3. Temporarily mount the conduit tubes on the conduit

panel.4. Connect the wires to the terminals on the control

board individually as the following.5. Secure the cable onto the control board with the

holder (clamper).6. Ground the unit in accordance with local codes.7. Refix the cover control to the original position with

the screw.8. Use lock nuts to secure the conduit tubes.

1. Separately wire the high and low voltage line.

2. Use heat-proof electrical wiring capable ofwithstanding temperature up to 167˚F.

3. Use outdoor and waterproof connection cable ratedmore than 300V for the connection between indoorand outdoor unit. (For example, Type SJO-WA)

• Be sure to comply with local codes while running thewire from the indoor unit to the outdoor unit(size of wireand wiring method, etc).

• Every wire must be connected firmly.

• No wire should be allowed to touch refrigerant tubing,the compressor or any moving parts.

The power cable connected to the outdoor unitshould be complied with the following specifications.(UL recognized and CSA certified)

CAUTION

The connecting cable connected to the indoor andoutdoor unit should be complied with the followingspecifications. (UL recognized and CSA certified)


Installation

Connection method of the connectingcable(Example)

(1) Dismount two-caps on the conduit panel.(2) Make a hole appropriate for the passage of connec-

tion cable through on cap by tool.(for low voltage line)

(3) Pass the connecting cable through the hole.(4) Properly connect the cable on the terminal block.(5) Fix the connection cable with clamp cord provided on

the unit not to have strain at the terminal when theconnection cable is pulled outside up to a 35 poundweight.

(6) Wind the vinyl tape round the connecting cable forsealing between the surface of the connection cableand cap.

(7) Mount the taped part of cable on the cap.(8) Finally, mount the holed cap with the wound cable on

the conduit panel.

When connecting each power wire to the correspondingterminal, follow instructions "How to connect wiring to theterminals" and fasten the wire tightly with the fixing screwof the terminal plate.

How to connect wiring to the terminalsFor solid core wiring (or F-cable)

(1) Cut the wire end with a wire cutter of wire-cutting pli-ers, then strip the insulation to expose the solid wireabout 25mm(15/16")

(2) Using a screwdriver, remove the terminal screw(s) onthe terminal plate.

(3) Using pliers, bend the solid wire to from a loop suit-able for the terminal screw.

(4) Shape the loop wire properly, place it on the terminalplater and tighten securely with the terminal screwusing a screwdriver.

For strand wiring(1) Cut the wire end with a wire cutter or wire-cutting pli-

ers, then strip the insulation to expose the strandwiring about 10mm(3/8").

(2) Using a screwdriver, remove the terminal screw(s) onthe terminal plate.

(3) Using a round terminal fastener or pliers, securelyclamp each stripped wire end with a round terminal.

(4) Position the round terminal wire, and replace andtighten the terminal screw using a screwdriver.

Loose wiring may cause the terminal to overheat orresult in unit malfunction. A fire hazard may also exist.Therefore, be sure all wiring is tightly connected.

WARNING

G

Terminalblock

Lock nut

Power supply line(1ø, 230/208V)

Conduit panel

Cap(Reuse)

Clamp cord

Hole(for low voltage line)Cap(Remove)Taping(for sealing)

Low voltage line(connecting cable)

Loop

Str

ip 2

5mm

(15/

16")

Insulation

Solid wire

High voltage

Low voltage

Str

ip 1

0mm

(3/8

")

Roundterminal

Connecting cable

Loosening theterminal blockscrew

Fastening the wire tightly

Strand wire

Service Manual 51

Installation

Connect the cable to the indoor unit1. Connect the wires to the terminals on the control

board individually according to the outdoor unit con-nection.• Ensure that the color of the wires of outdoor unit and the

terminal No. are the same as those of indoor unit respec-tively.(Refer to Wiring diagram on page11.)

2. Attach the Grille onto the cabinet.• Grasp lower the left and right side of the Grille and

engage four tabs on the top inside edge of the chassis.• Press the Grille toward the chassis until it will be back into

place.

CAUTIONCAUTION

AirConditioner Circuit Breaker

Use a circuitbreaker or timedelay fuse.

Connecting cable

Main power source

If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below.

Model

18k 1ø,230/208V 15A24k 1ø,230/208V 20A36k 1ø,230/208V 30A

Power source Fuse or breakerCapacity

• Be sure to refer to the wiring diagram label inside thecover control and carry out the correct field wiring.Wrong wiring can cause the unit to misoperate to resultin a fire hazard.

• Check local electrical codes and any specified wiringinstructions or limitations.

WARNING


Installation

1. To remove the front panel from the indoor unit,remove the front panel from the indoor unit cabinet. Set the air direction louvers up-and-down to the posi-

tion(horizontally) by hand. Remove the securing screws that retain the front

panel. Pull the lower left and right sides of the grilletoward you and lift it off.(9K Btu models: 2EA,12K Btu models: 3EA)

2. To check the drainage. Pour a glass of water on the evaporator. Ensure the water flows through the drain hose of the

indoor unit without any leakage and goes out thedrain exit.

3. Drain piping The drain hose should point downward for easy drain

flow.

Do not make drain piping.

1. Form the piping by wrapping the connecting por-tion of the indoor unit with insulation material andsecure it with two kinds of vinyl tapes. If you want to connect an additional drain hose, the

end of the drain outlet should be routed above theground. Secure the drain hose appropriately.

2. In cases where the outdoor unit is installed belowthe indoor unit perform the following. Tape the piping, drain hose and connecting cable

from down to up. Secure the tapped piping along the exterior wall using

saddle or equivalent

3. In cases where the Outdoor unit is installed abovethe Indoor unit perform the following. Tape the piping and connecting cable from down to

up. Secure the taped piping along the exterior wall. Form

a trap to prevent water entering the room. Fix the piping onto the wall by saddle or equivalent.

Pull the right andthe left side. Screw

• Trap is required to prevent water from enteringinto electrical parts.

Plasticband

Taping

Drain hose

Pipings

Connectingcable

Power supplycord

Seal a small opening around the pipings with gum type sealer.

Seal a small opening around the pipings with gum type sealer.

Trap

Trap

Downward slope

Do not raise Accumulateddrain water Tip of drain hose

dipped in waterAir

WavingWaterleakage

Waterleakage Ditch

Less than 50mm gap

Waterleakage

(4) Checking the drainage (5) Form the piping

Service Manual 53

Installation

(6) Air Purging of the Pipings and indoor unitThe air which contains moisture remaining in the is refrigeration cycle may cause a malfunction on thecompressor.

1. Confirm that both the liquid side valve and the gas side valve are set to the closed position.2. After connecting the piping, check the joints for gas leakage with gas leak detector.3. Remove the service port nut, and connect the gauge manifold and the vacuum pump to the service port

by the charge hose.4. Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below-76cmHg.5. Disconnect the charge hose and fit the nut to the service port.

(Tightening torque: 1.8kg.m)6. Remove the valve stem nuts, and fully open the stems of the 2-way and 3-way valves with a hexagon

wrench.7. Tighten the valve stem nuts of the 2-way valve and 3-way valve.

Indoor unit

Outdoor unit

Liquid side

Closed

Gas side

2-Wayvalve

Closed3-Wayvalve

manifold gauge


Closed

Gas side

2-Wayvalve

Closed3-Wayvalve

Vacuum pump

Hi- handle(OPEN)

Low-handle(OPEN)


Installation

(7) Maximum Length of Pipe and Freon Extra Charge

Multi Piping Type

36k 45m 15m 3m 7.5m 7.5m(148ft) (49.2ft) (9.8ft) (24.6ft) (24.6ft)

Capacity(Btu/h)Max total length

of all pipes(A+B+C)

Max length ofeach pipe(A/B/C)

Min length ofeach pipe(A/B/C)

Max Elevationbetween eachindoor unit and

outdoor unit (h1)

Max elevationbetween indoor

units (h2)

h2

h2

h1h1

A

B C

Oil trap

h1

CAUTION: Capacity is based on standard length and maximum allowancelength is on the basis of reliability. Oil trap should be installed every 5~7meters (16.4~23.0ft).

12K 1/2" 1/4"7.5m 30g/m

(24.6ft) (0.32oz/ft)

Gas Liquid Standard LengthAdditional

Refrigerant

Indoor Capacity(Btu/h)

Pipe Size

Service Manual 55

Installation

(8) Test running

Battery Cover

Discharge air

Bolt

Tubing connection

Settlement of Outdoor Unit

• Anchor the outdoor unit with a bolt and nut(ø10cm) tightly and horizontally on a concrete orrigid mount.

• When installing on the wall, roof or rooftop,anchor the mounting base securely with a nail orwire assuming the influence of wind and earth-quake.

• In the case when the vibration of the unit is con-veyed to the house, settle the unit with an anti-vibration rubber.

2) Evaluation of the performance1. Measure the temperature of the intake and

discharge air.2. Ensure the difference between the intake

temperature and the discharge one is morethan 8°C.

1) Connection of power supply1. Connect the power supply cord to the inde-

pendent power supply.2. Prepare the remote control.

• Insert two batteries provided.Remove the battery cover from the remote con-troller.

• Slide the cover according to the arrow direction.

Insert the two batteries.(Two "R03" or "AAA" dry-cell batteries or equiv-alent.)

• Be sure that the (+) and (-) directions are cor-rect.

• Be sure that both batteries are new.

Re-attach the cover.

• Slide it back into position.

3. Operate the unit at cooling operation modefor fifteen minutes or more.


Operation

Operation(1) Name and Function-Remote Control (Door Closed)

Signal transmitter

Transmits the signalsto the room air conditioner.

REMOTE CONTROL

6

1

3

5

4

2

Flip-up door(closed)

Signal transmitterSTART/STOP BUTTONOperation starts when this button is pressed and stopswhen the button is pressed again.

OPERATION MODE SELECTION BUTTONUsed to select the operation mode.

ROOM TEMPERATURE SETTING BUTTONSUsed to select the room temperature.

INDOOR FAN SPEED SELECTORUsed to select fan speed in four stepslow, medium, high, or CHAOS.

JET COOLUsed to start or stop the speedcooling. (Speed cooling operatessuper high fan speed in cooling mode.)

CHAOS SWING BUTTONUsed to stop or start louver movement andset the desired up/down airflow direction.

1

2

3

4

5

6

Service Manual 57

Operation

(2) Name and Function-Remote Control (Door Opened)

Signal transmitter

Transmits the signalsto the room air conditioner.

REMOTE CONTROL

ON OFF

SET CANCEL

˚C/˚F

Signal transmitter

4

5

6

7

8

1

2

3

1

2

3

4

5

6

7

8

ON/OFF TIMER BUTTONSUsed to set the time of starting and stopping operation.

TIME SETTING BUTTONSUsed to adjust the time.

TIMER SET/CANCEL BUTTONSUsed to set the timer when the desired time is obtained andto cancel the Timer operation.

SLEEP MODE AUTO BUTTONUsed to set Sleep Mode Auto operation.

AIR CIRCULATION BUTTONUsed to circulate the room air without cooling or heating(turns indoor fan on/off).

ROOM TEMPERATURE CHECKING BUTTONUsed to check the room temperature.

˚C TO ˚F SWITCHING BUTTON

RESET BUTTONUsed prior to resetting time or after replacing batteries.


Disassembly of the parts (Indoor unit)

Disassembly of the parts (Indoor unit)Warning :Disconnect the unit from power supply before mak-ing any checks.Be sure the power switch is set to “OFF”.

To remove the Grille from the Chassis.• Set the up-and-down air discharge louver to open

position (horizontally) by finger pressure.• Remove the securing screws• To remove the Grille, pull the lower left and right

side of the grille toward you (slightly tilted) and liftit straight upward.

1. To remove the sensor, housing connect, stepmotor conductor with sensor holder, Motor,Evaporator & P.C.B.

Screw

Step MotorConductor

MotorConductor

SensorConductor

Service Manual 59

Disassembly of the parts (Indoor unit)

2. To remove the Control Box.• Remove securing screws.• Pull the control box out from the chassis care-

fully.

3. To remove the Discharge Grille.• Pull the discharge grille out from the chassis

carefully.

4. To remove the Evaporator.• Remove screws securing the evaporator and

the holder eva.

• Unhook the tab on the right inside of the chas-sis at the same time, slightly pull the evapora-tor toward you until the tab is clear of the slot.

5. To remove the Cross-Flow Fan• Loosen the screw securing the cross-flow fan

to the fan motor (do not remove).• Lift up the right side of the cross-flow fan and

the fan motor, separate the fan motor from thecross-flow fan.

• Remove the left end of the cross-flow fan fromthe self-aligning bearing.


Exploded View and Replacement Parts List


1353

16

2687

12

2671

1013

5311

3542

10

2499

51

1523

02

1355

00

1353

14

1599

01

3428

00

1314

1073

3010

3468

12

2632

30-1

2632

30-2

2687

14

3521

50

1468

11

3521

1B

3590

11

1. Indoor Unit

HMC036KDT1, HMH036KDT1

Service Manual 61


PART No.

HMC036KDT1 HMH036KDT1

131410 CHASSIS ASSEMBLY 3141A20003D 3141A20003D R

135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10023X 3531A10023X R

135316 GRILLE ASSEMBLY, FRONT 3531A10099J 3531A10099H R

135500 COVER 3550A10107A 3550A10107A R

146811 MOTOR ASSEMBLY, STEP 4681AR2727H 4681AR2727H R

152302 FILTER(MECH), A/C 5230A20004A 5230A20004A R

159901 VANE,HORIZONTAL 5990A30007A 5990A30007A R

249951 CONTROL BOX ASSEMBLY, INDOOR 4995A00003B 4995A00003A R

263230-1 THERMISTOR ASSEMBLY 6323A20003A 6323A20003A R

263230-2 THERMISTOR ASSEMBLY 6323A20024A 6323A20024A R

267110 REMOTE CONTROLLER ASSEMBLY 6711A20025M 6711A20026T R

268712 PWB(PCB) ASSEMBLY, DISPLAY 6871A30009Q 6871A30009Q R

268714 PWB(PCB) ASSEMBLY, MAIN 6871A20502B 6871A20502A R

342800 BEARING 3H02821B 3H02821B R

346812 MOTOR ASSEMBLY, DC 4681AR2295H 4681AR2295H R

35211B TUBE ASSEMBLY, TUBING 2H02449J 2H02449J R

352150 HOSE ASSEMBLY, DRAIN 5251AR2575H 5251AR2575H R

354210 EVAPORATOR ASSEMBLY, FIRST 5421A20032D 5421A20032D R

359011 FAN ASSEMBLY, CROSS FLOW 5901AR6141C 5901AR6141C R

733010 PLATE ASSEMBLY, INSTALL 1H00843A 1H00843A R

135314 GRILLE ASSY,INLET SUB 3531A10032W 3531A10032X R

DESCRIPTIONSVC

CODELOCATION

No.

Parts List - Indoor Unit



HMC036KDT1

5468

10

5590

10

5522

03-1

5522

03-2

5541

60-2

5541

60-1

5675

02

5540

31

4479

10

4304

10

4355

12

1353

01

4372

11

7382

90

7382

81

1372

13-2

1372

13-1

1353

14

5484

90

5521

12

5521

13

5521

17

5614

11-1

5614

11-2

5614

11-3

2632

30-1

2632

30-2

6499

50

6687

11-2

6687

11-1

W0C

ZZ-1

W0C

ZZ-2

4355

11

2. Outdoor Unit

Service Manual 63


PART No.

HMC036KDT1

135301 GRILLE, DISCHARGE 3530A20006B R

135314 GRILLE, REAR 3530A10176B R

263230-1 THERMISTOR ASSEMBLY 6323A20028A R


430410 BASE ASSEMBLY, OUTDOOR 3041AP7177D R

435511 COVER ASSEMBLY, CONTROL(OUTDOOR) 3551A10044B R

435512 COVER ASSEMBLY, TOP(OUTDOOR) 3H03266H R

437211 PANEL ASSEMBLY, FRONT(OUTDOOR) 3721A10109A R

447910 BARRIER ASSEMBLY, OUTDOOR 4791A10019B R

546810 MOTOR ASSEMBLY, OUTDOOR 4681AR1392X R

548490 ACCUMULATOR ASSEMBLY(MECH) 5211A21233B R

552112 TUBE ASSEMBLY, CONDENSER IN 5211A11010C R

552113 TUBE ASSEMBLY, CONDENSER OUT 5211A12001C R

552117 TUBE ASSEMBLY, SUCTION(OUTDOOR) 5211A10446C R

554031 CONDENSER ASSEMBLY, BENT 5403A20168C R

559010 FAN ASSEMBLY, PROPELLER 5901A10033A R

649950 CONTROL BOX ASSEMBLY, OUTDOOR 4995A00002B R

668711-1 PWB(PCB) ASSEMBLY, MAIN(AC) 6871A20500B R

668711-2 PWB(PCB) ASSEMBLY, MAIN(OUTDOOR) 6871A20479B R

137213-1 PANEL ASSEMBLY, SIDE 3721A10110A R

137213-2 PANEL ASSEMBLY, SIDE 3721A10111C R

552203-1 VALVE, SERVICE 2H01890U R

552203-2 VALVE, SERVICE 2H02479R R

554160-1 COMPRESSOR 2520UHGK2EA R

554160-2 COMPRESSOR 2520UMMK2BA R

561411-1 COIL ASSEMBLY, EXPANSION 6141A20018D R

561411-2 COIL ASSEMBLY, EXPANSION 6141A20018E R

561411-3 COIL ASSEMBLY, EXPANSION 6141A20018F R

W0CZZ-1 CAPACITOR, DRAWING 0CZZA20007Q R

W0CZZ-2 CAPACITOR, DRAWING 2H01451S R

567502 O.L.P 2H00599W R

738290 MANUAL, OWNERS 3828A22014K R

738281 MANUAL, SERVICE 3828A20412R R

DESCRIPTIONSVC

CODELOCATION

No.

Parts List - Outdoor Unit



HMH036KDT1

5468

10

5590

10

5522

03-1

5522

03-2

5541

60-2

5541

60-1

5540

31

4479

10

5675

02

4304

10

4355

12

1353

01

4372

11

1372

13-2

1372

13-1

1353

14

2632

30-1

2632

30-2

6499

50

6687

11-2

6687

11-1

W0C

ZZ-1

W0C

ZZ-2

5484

90

5521

12

5521

1F55

2113

5521

16

5614

10-1

5614

11-1

5614

11-2

5614

11-3

5614

10-2

4355

11

7382

90

7382

81

Service Manual 65


PART No.

HMH036KDT1

135301 GRILLE, DISCHARGE 3530A20006B R

135314 GRILLE, REAR 3530A10176B R



430410 BASE ASSEMBLY, OUTDOOR 3041AP7177D R

435511 COVER ASSEMBLY, CONTROL(OUTDOOR) 3551A10044A R

435512 COVER ASSEMBLY, TOP(OUTDOOR) 3H03266H R

437211 PANEL ASSEMBLY, FRONT(OUTDOOR) 3721A10109A R

447910 BARRIER ASSEMBLY, OUTDOOR 4791A10019B R

546810 MOTOR ASSEMBLY, OUTDOOR 4681AR1392X R

548490 ACCUMULATOR ASSEMBLY(MECH) 5211A21233A R

552112 TUBE ASSEMBLY, CONDENSER IN 5211A11010C R

552113 TUBE ASSEMBLY, CONDENSER OUT 5211A12001C R

552116 TUBE ASSEMBLY, REVERSING 5211A10448A R

554031 CONDENSER ASSEMBLY, BENT 5403A20168A R

559010 FAN ASSEMBLY, PROPELLER 5901A10033A R

561410-1 COIL ASSEMBLY, REVERSING VALVE 6141A20021A R

561410-2 COIL ASSEMBLY, SOLENOID 6141A20022A R

649950 CONTROL BOX ASSEMBLY, OUTDOOR 4995A00002A R

668711-1 PWB(PCB) ASSEMBLY, MAIN(AC) 6871A20500B R

668711-2 PWB(PCB) ASSEMBLY, MAIN(OUTDOOR) 6871A20479A R

137213-1 PANEL ASSEMBLY, SIDE 3721A10110A R

137213-2 PANEL ASSEMBLY, SIDE 3721A10111C R

552203-1 VALVE, SERVICE 2H01890U R

552203-2 VALVE, SERVICE 2H02479R R

554160-1 COMPRESSOR 2520UHGK2EA R

554160-2 COMPRESSOR 2520UMMK2BA R

561411-1 COIL ASSEMBLY, EXPANSION 6141A20018D R

561411-2 COIL ASSEMBLY, EXPANSION 6141A20018E R

561411-3 COIL ASSEMBLY, EXPANSION 6141A20018F R

W0CZZ-1 CAPACITOR, DRAWING 0CZZA20007Q R

W0CZZ-2 CAPACITOR, DRAWING 2H01451S R

567502 O.L.P 2H00599W R

55211F TUBE ASSEMBLY, SOLENOIDE 5211A00007A R

738290 MANUAL, OWNERS 3828A22014K R

738281 MANUAL, SERVICE 3828A20412R R

DESCRIPTIONSVC

CODELOCATION

No.

Parts List - Outdoor Unit

P/No.: 3828A20412RApril 2004

Printed in Korea

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