SPLIT TYPEAIR CONDITIONERCASSETTE TYPE (60Hz)

Indoor unit Outdoor unitMC24Y3F MR24UY3F

CONTENTSSPECIFICATIONS . . . . . . . . . . . . . . . . . . . .1DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . 2REFRIGERANT SYSTEM DIAGRAM. . . . .4CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . 5

ERROR CONTENTS . . . . . . . . . . . . . . . . .

7INDOOR PCB CIRCUIT DIAGRAM . . . . . .. . . . 8OUTDOOR PCB CIRCUIT DIAGRAM11

DISASSEMBLY ILLUSTRATION . . . . . . . 13PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . 21ACCESSORIES. . . . . . . . . . . . . . . . . . . . .23

INDOOR UNIT H x W x D

DIMENSIONS

INDOOR UNIT Gross / Net

Gross / NetOUTDOOR UNIT

WEIGHT

POWER SOURCECOOLINGRUNNING

CURRENT HEATING

INPUT WATTSCOOLING

HEATING

E.E.R.COOLING

HEATING

STARTING CURRENTMOISTURE REMOVAL

AIRCIRCULATION HIGH

FAN MOTOR

TYPE

DISCRIMINATIONPRECHARGED REFRIGERANTREFRIGERANT TYPE R410A

Discrimination

High speed

High speed

INDOOR UNIT( Cool / Heat ) Middle speed

Low speed

DiscriminationOUTDOOR UNIT( Cool / Heat )

TYPE COOLING & HEATING

INDOOR UNIT MC24Y3F

OUTDOOR UNIT MR24UY3FCOOLING CAPACITYHEATING CAPACITY

97 lb / 75 lb (44 kg / 34 kg)

154 lb / 141 lb (70 kg / 64 kg)

9.2 / 10.1 A

10.4 / 11.4 A2.10 / 2.10 kW

2.37 / 2.37 kW3.10 / 3.10 kW/kW3.00 / 3.00 kW/kW

9.5 A6.3 Pts/h (3.0 l/hr)

617cfm (1,050 m3/hr)

1 230 / 208 V 60Hz

Total enclosed type,4 poles, Inverter,Twin Rotary

TNB220FPBM94 lb 3 oz, 1,900 g

Super low

MFA-24RPT490 r.p.m. / 440 r.p.m.430 r.p.m. / 380 r.p.m.360 r.p.m. / 330 r.p.m.

MFE-45ROM850 r.p.m. / 900 r.p.m.

- / 250 r.p.m.

22,200 / 22,200 BTU/h24,200 / 24,200 BTU/h

ELECTRICAL DATA COMPRESSOR AND REFRIGERANT

H x W x DOUTDOOR UNIT 32-3/4" x 35-1/2" x 13" inch( 830 x 900 x 330 mm )

9-3/4" x 32-3/4" x 32-3/4" inch( 246 x 830 x 830 mm )

2009.05.21 1

SPECIFICATIONS

MAX PIPE LENGTHMAX PIPE HEIGHT

Pipe length 49 ft. (15 m)

66 ft. (20 m)FULLCHARGE

98 ft. (30 m)

131 ft. (40 m)

164 ft. (50 m)

164 ft (50 m)98 ft (30 m)

4 lb 3 oz (1,900 g)4 lb 10 oz (2,100 g)5 lb 8 oz (2,500 g)6 lb 6 oz (2,900 g)7 lb 5 oz (3,300 g)

ADDITIONAL CHARGE

NOISE LEVELHigh speed

INDOOR UNIT Middle speed

Low speed

Cool

Heat

45 dB43 dB38 dB

OUTDOOR UNIT53 dB55 dB

0.424 oz / ft. (40 g / m)

INDOOR UNITunit : inch (mm)

DIMENSIONS

2006.05.18 2

9-3/4"(246)

9-1/4"(235)

9-25/32"(248.5)

11-3/4" (298.5)

12" (305.5)

1-3/16"(30)

37" (940)

37"(940)

2-3/

8"(6

0)

Drain inside Dia. ø1-1/4" (ø32)

outside Dia. ø1-1/2" (ø37)

3-15/16"(100)

2-3/4"(70)

7-7/8"(200)

9-25/32"(248.5)

11-3/4" (298.5)

12" (305.5)2-3/8"(60)

3-15/16"(100)

2-3/4"(70)

29-17/32"(750)

32-3/4"(830)

29-17/32" (750)

32-3/4" (830)

OUTDOOR UNITunit : inch (mm)

2006.05.18 3

3"(77)35-1/2" (900)

32-3/4"(830)

17-3/8"(440)

7/8"(21)

3/8"

(9)

15-3/4" (400)

13" (330)1-1/4"(31)

1/2"(12)

7-3/4"(196)

5-3/4" (147)

6-3/4" (170)

3-7/8"

(99)

14-5/8"(370)

25-5/8" (650)

Air Flow

Evaporator

OUTDOOR UNIT

PressureCheck Valve

Condenser

4-wayValve

High PressureSwitch

Accumulator

Muffler

Compressor

ExpansionValve Refrigerant Pipe

9.52mm (3/8")

Charging Valve

ChargingValve

Refrigerant Pipe15.88mm (5/8")

INDOOR UNIT

StrainerStrainer

REFRIGERANT SYSTEM DIAGRAM

: COOL

: HEAT

2006.05.18 4

CIRCUIT DIAGRAM

INDOOR UNIT

2006.05.18 5

YELLOWYELLOW

BLACKBLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

PURPLEBLUE

REDWHITE

WHITEREDRED

WHITE

WHITEWHITE

GREEN /YELLOW

WHITE WHITEYELLOWYELLOW

ORANGE ORANGERED REDBROWN BROWN

WHITEBLACK

RED

GREEN

BLACK

WHITE

RED

GRAY

GRAY

BLACK

BLACK

1 21 21 21 2

1

6532

1

6532

1

5432

1

5432

1

5432

1

5432

1

32

1

32

1

32

1

32

1

32

1

32

1

32

1

32

1

32

1

32

12

12

12

12

12

12

CN7 CN8

CN4

CN5

CN1

CN16

CN6

CN17

CN15

CN103 2 1

N

Use

T3.1

5A-2

50V

Fuse

onF1

01

TERMINAL

TO REMOTE CONTROL UNIT

PIPE TEMPERATURE THERMISTOR

ROOM TEMPERATURE THERMISTOR

STEP MOTORM

FLOAT SWITCH

DRAIN PUMP MOTORM

FAN MOTOR

F M

FAN MOTORCAPACITOR

G

TERMINAL

TO OUTDOOR UNIT

32(N)

1

CONTROLLERPCBASSY

POWER SUPPLYPCB ASSY

L

OUTDOOR UNIT

2006.05.18 6

ORANGEYELLOWWHITE

BLUEBROWNRED

BLUEYELLOWWHITEBLACK

RED

BLACK

BLACK

REDRED

BLACK

BROWN

BLUE

BROWN

BLACK

RE

DB

RO

WN

BLA

CK

BLA

CK

WH

ITE

BLA

CK

BLA

CK

WH

ITE

WH

ITE

GR

EE

N

BLACK

WHITE

BLACK

RED

YELLOW

BLUE

YELLOW

ORANGEREDBROWN

BLACK

BLACK

WHITE

BROWN

BLACKBLACK

WHITEWHITE

RED RED

RED

CN1

CN1

CN34

W9 W8

W200W11

W10

W17

W16

CN27

CN802

W12

W13

CN407

CN30

CN37

W303

W304

W305

CN21 CN22 CN23 CN26 CN25

1

65432

1 432

1

65432

1

5432

1

32

12

1 32

1 2 1 2 1 2 1 2 1 2

1

65432

1 32TM102

TM101 W3 W6 W7 W4 W5

G G2 (N)1 3 L N

EARTH EARTH

EXPANSION VALVE COILE V

F M FAN MOTOR

SOLENOID COIL4WV

HIGH PRESSURE SWITCH

FUSEF4 T 5A-250V

FUSEF2 T 3.15A-250V

EMI FILTER2T

L1

L2

PN

+ -

TERMINAL

CHOKE COIL

COMPRESSOR

CONNECTOREMI FILTER

1TU

V

WW

U

V

DISCHARG TEMPERATURETHERMISTOR

PIPE TEMPERATURETHERMISTOR

OUTDOOR TEMPERATURETHERMISTOR

COMPRESSOR TEMPERATURETHERMISTOR

HEAT SINK TEMPERATURETHERMISTOR

POWER SUPPLY PCB ASSY

CONTROLLER PCB ASSYACTIVEFILTER

MODULE

Model:MC24Y3F

CONTROLLERPCBASSEMBLY

K01AL-050LHSE-C1

2006.05.25

7

INDOORPCBCIRCUITDIAGRAM

Model:MR24UY3F

POWERSUPPLYPCBASSY

K04BA-0500HUE-P0

CONTROLLERPCBASSY

K04AW

-0502HUE-C1

INVERTERASSEMBLY

EZ-005FHUE

2006.05.25

8

OUTDOORPCBCIRCUITDIAGRAM

600/450V

x4

2006.05.25

9

CONTROLLERPCBASSEMBLY

K04AW

-0502HUE-C1

Model:MR24UY3F

5V

TM101

TM102

C112

0.015

<YE>

C113

0.015

<YE>

C111

3.3

<LE>

L4RCH4730-021PF07

C107

3.3

<LE>

TM100

L2N200500K1D7C

CT1CT-1B 5V

D60DAN217U

C640.1

<F>

R68

22K

<1/10W

>

C650.1

<F>

VR1

B2K

+ R61

3.74K

<1/10W

>(1%)

C60

220/16V

<PJ>

R60

1.0K

<1/10W

>(1%)

SA100

RA-302M

C106

3.3

<LE>

C104

0.033

<YE>

C105

0.033

<YE>

C101

3.3

<LE>

VA101

470V

<TNR>

VA102

470V

<TNR>

B BBB BBB

BLACK

WHITE

TOINDOORUNIT

POWERSOURCE

230V

60Hz

EARTH

ACVOLTOUT

W5

W6

BLACK

WHITE

W7

GREEN

W3

W8

BLACK

WHITE

W9

W4

L1RCH4730-021PF07

CN1

B3B-XASK-1-A

WHITE

CTOUT

1 2 3

POWERSUPPLYPCBASSEMBLY

K04BA-0500HUE-P0

2006.05.25

10

Model:MR24UY3F

ERROR CONTENTS(indoor unit)

SU MO TU WE TH FR SA

(1) Stop the air conditioner operation.(2) Press the master control button and the fan control button simultane-

ously for 2 seconds or more to start the test run.

Unit number (usually 0)

Error code

(3) Press the start/stop button to stop the test run.

[SELF-DIAGNOSIS]When the error indication "E:EE" is displayed, follow the following items toperform the self-diagnosis. "E:EE" indicates an error has occurred.

1. REMOTE CONTROLLER DISPLAY(1) Stop the air conditioner operation.

(2) Press the set temperature buttons simultaneously for 5 sec-onds or more to start the self-diagnosis.Refer to the following tables for the description of each error code.

Test run display

(3) Press the set temperature buttons simultaneously for 5 sec-onds or more to stop the self-diagnosis.

Ex. Self-diagnosis

2. CHECKING DRAINAGE

To check the drain, remove the water cover and fill with 2 to 3 of water asshown in figure.The drain pump operates when operating in the cooling mode.

Water cover

Drain pipe

Watering pot

Error code Error contents

Communication error

Room temperature sensor open

Room temperature sensor short-circuited

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor short-circuitedOutdoor heat exchanger temperature sensor

Power source connection error

Float switch operated

Outdoor temperature sensor

Discharge pipe temperature sensor

Model abnormal

Indoor fan abnormal

01

Communication error00

020304050608090A0c1112

Error code Error contents

Outdoor signal abnormal

Excessive outdoor pressure (permanent stop)

Compressor temperature sensor

Pressure switch error

IPM error

CT error

Active filter module (AFM) error

Compressor does not operate

Outdoor unit fan error

Communication error(inverter multicontroller)2 way valve sensor error

Expansion valve error

Connection indoor unit error

131415161718191A1b1c1d1E1F

2006.05.25 11

(indoor unit remote controller)

(indoor unit outdoor unit)

ERROR CONTENTS(outdoor unit)

1. Make a TEST RUN in accordance with the in-stallation instruction sheet for the indoor unit.

2. OUTDOOR UNIT LEDS

Error contents

Communication error(Indoor unit - Outdoor unit)

Discharg pipe temperature sensor

Outdoor heat exchanger temperature sensor

Outdoor temperature sensor

Compressor temperature sensor

Heat sink temperature sensor

Pressure switch abnormal

IPM error

Compressor rotor position cannot detect

Compressor cannot operate

Outdoor fan abnormal (upper fan)

Outdoor fan abnormal (lower fan)

No error

LED

1 flash

2 flash

3 flash

4 flash

7 flash

8 flash

9 flash

12 flash

13 flash

14 flash

15 flash

16 flash

lighting

2006.05.18 12

When a malfunction occurs in the outdoor unit, the LED onthe circuit board lights to indicate the error. Refer to the fol-lowing table for the description of each error according to theLED.

SPECIAL INSTALLATIONSETTINGPUMP DOWN (Refrigerant collecting operation)

1. When the product is stopped:

Perform the following procedures to collect the refrigerantwhen moving the indoor unit or the outdoor unit.

1

2

3

4

Press the PUMP DOWN switch on the outdoor unit.(The LED on the outdoor unit circuit board lights.)

The pump down operation (cooling operation) be-gins right away. After oparation starts, close thethree-way valve (liquid).

After 2 - 3 minutes, operation stops. Close the three-way valve (gas) within one minute after operationsstops.

The LED will go out three minutes after it stops.Dis-connect the power supply after confirming that theLED has gone out.

*When the pump down operation is repeated, temporarily disconnectthe power supply after opening the closed valves (both liquid and gas).Reconnect the power supply after 2 - 3 minutes and perform the pumpdown operation.

*When the start of the operation after pump down operation has beencompleted, temporarily disconnect the power supply after opening theclosed valves (both liquid and gas).Reconnect the power supply after 2-3 minutes and be sure to performa test operation for cooling.

2. When the product is operating:

1

2

3

4

Press the PUMP DOWN switch on the outdoor unit.The LED on the outdoor unit circuit board lights, andoperation stops. At this point, recovery has not beencompleted, so do not close the two- and three-wayvalves.

The pump down operation (cooling operation) be-gins after three minutes. Close the three-way valve(liquid) after operation starts.

After 2 - 3 minutes, operation stops. Close the three-way valve (gas) within one minute after operationsstops.

The LED will go out three minutes after it stops. Dis-connect the power supply after confirming that theLED has gone out.

3-way valve(Liquid)

3-way valve(Gas)

DANGER

This part (Choke coil) generates high voltages.Never touch this part.

PUMP DOWN SW (SW2)

692

544

710

469

468

858487

71

71

858

61

240

93

545

481 481

481

544

705

847

542

705

847

692

690

692

847

543543

544544

122

543

122

847

692

690

692

847

543

847

122690

847

692

226

338

522

122122

834-2

876-2

472-4

253-A

472-2

481-1

472-3

777-2

777-1

472-1

472-5

472-5

472-5

472-5

DISASSEMBLYILLUSTRATION

INDOOR UNIT

2006.05.25 13

479

467127

835 482798

835 484

465244

563

814

484484

464

462

164

484168

474

477

223

457 488

160

457

514

803

187

460-1

834-1

476-2

460-2

197

197

565

337-1

146-2

146-1

337-1

337-2

INDOOR UNIT

541334

541-1

815-1

2006.05.18 14

INDOOR UNIT

236

380

380

380

195

625

234

212 875

34

32

815-2

320-1

320-1

381-4

731-2

381-4

2006.05.18 15

INDOOR UNIT

138

735

184-1

235

896

2006.05.18 16

187

OUTDOOR UNIT 1

6

2006.07.06 17

4

3

52

17

18

10

13 11

9

15 14

8

OUTDOOR UNIT

2006.05.25 18

22

23

31

20

29

12

28

12

19

24

26

27

25

30

OUTDOOR UNIT

2006.05.24 19

37

38

33 34

36

35

OUTDOOR UNIT

2006.05.18 20

34 Capacitor (Fan Motor) 990027004961 Decoration Plate 937163102871 Holder (Hook) 936278200593 Filter 9362766005122 Holder (Louver Supporter) 9362799003127 Drain Hose 9365074008138 Separate wall 9362793001

195 Binder-C 313361275805

240 Remote Control Unit 9372266144244 Pipe Cover Assy 9362819015

337-1 RFM (Eva. )-A 9362749008337-2 RFM (Eva. )-B 9362750004338 Motor Holder 9362765008

380 Locking Spacer 313209391403

457 RFM (Drain Pan) 9362757003460-1 Pump Cover-A 9362775007460-2 Pump Cover-B 9362776004462 Panel (Top) Assy 9362806022464 Cabinet-A Assy 9362807012465 Cabinet-B Assy 9362808019

467 Drain Port 9362786003468 M10 Nut-A (Large) 313005446653469 M10 Nut-B (Small) 313005446759

32 Control Box Assy 9368533007

146-1 Evaporator-A Assy 9373799030146-2 Evaporator-B Assy 9373800033160 Kit (Drain Pan Sub Assy) 9370934014164 Motor, Induction 9601558026168 Cabinet-E 9362735001184-1 Thermistor Spring-A 313728262708187 Clamp No. 1219 313361271706

197 Wind Guide Board 9373444015

223 Control Box 9368523015226 Motor Gear 9362764001234 Room Thermistor 9703299025235 Pipe Temp. Thermistor 9703297014236 Controller PCB Assy 9705914230

(K01AL-05L1HSE-C1)

212 Clamp NK-4N 313714328805

253-A Wire Assy 9372714010320-1 Wire Clamp Metal 313483219905334 Wire Cover 9370624007

381-4 Spacer 0600118075

482 Pump Unit 9900360030484 Hook 9362736008487 Hinge Wire (Grille) 9362754002488 Drain Pan Plug 313005174654514 Control Box Cover 9368524005522 Joint Gear 9362772006541 Terminal Base 9368529017

542 Panel Base 9362759014543 Holder (Panel Frame) 9362761017544 Holder (Panel Base) 9362760010545 Panel Frame 9362758017563 Inner Box 9362797009565 Evaporator Holder Assy 9362802024625 Cord Bushing 9359240006

690 Joint-A 9362773003692 Joint Shaft 9362771009705 Louver Assy 9362836012710 Intake Grille 9362767019

735 Distributor Assy 9371325040777-1 Hook (Grille)-A 9362779012777-2 Hook (Grille)-B 9362778015

798 Drain Pump Holder 9362753005803 Cabinet-D 9362792004814 Cabinet-C 9362791007815-1 Terminal-3P 9306489083815-2 Terminal-3P 9703345012834-1 Cover (Wire)-A 9362789004834-2 Cover (Wire)-B 9362788007835 Cushion (Pump) 9362777001

847 Louver Supporter 9362770019858 Spring (Grille) 9362755009875 Power Supply PCB Assy 9704561329876-2 Motor, Step 9900362027

541-1 Terminal Cover 9368530006

731-2 Holder 0600241018

896 Coupling Pipe Assy 9371333038

PARTS LIST

INDOOR UNITRef. Description Part No. Ref. Description Part No.

2006.06.13 21

472-5 RFM (Grille)-E 9362742009474 Turbo Fan Assy 9362810012476-2 Washer (Turbo Fan) 9362756006477 Bellmouth-B 9362774000479 Float Switch 9900361020481 Insulation (Grille)-A 9362780001

481-1 Insulation (Grille)-B 9362781008

472-3 RFM (Grille)-C 9362740005472-4 RFM (Grille)-D 9362741002

472-1 RFM (Grille)-A 9362738002472-2 RFM (Grille)-B 9362739009

OUTDOOR UNIT

1 Top Panel Sub Assy 93744170252 Front Panel 93740940663 Fan Guard 93743300104 Grip Side 93741730135 Service Panel Sub Assy 93744150386 Right Panel 93740951488 Propeller Fan Assy 93663780209 Motor, Induction 9602114016

10 Condenser-AAssy 937443314811 Coil Choke 990036601812 Strainer Assy 937252401513 Separate Wall Assy 937522601514 Cap Foot 937434501415 Base Assy 937416618317 3-Way Valve Assy (3/8) 937220504418 3-Way Valve Assy (5/8) 9372205075

19 Check Joint Assy 937280203820 Compressor Assy 937371101822 4-Way Valve 990016401023 Solenoid 990016505524 Pressure Switch 990018601225 Inlet Pipe Cond AAssy 937346106726 Inlet Pipe Cond B Assy 937346305427 Outlet Pipe Cond AAssy 9374266050

28 Expansion Valve Assy 937094711329 Coil (Expansion Valve) 990005703930 Distributor 936912800431 Discharge Pipe AAssy 937226414033 Terminal 2P 970197101534 Terminal 5P 990020302335 ACTPM 970345701236 Holder Thermo 9372797013

37 Inverter PCB Assy 970564208938 Power PCB Assy 9705647046

---- Heatsink Thermistor 9900311018

---- Arrester 0600280147

---- Transformer 9702334024

---- Thermistor 9900041014---- Compressor Thermistor 9900156022---- Thermistor (Discharge) 9704219114---- Heat Exchanger Thermistor 9900374013---- Thermistor (Outdoor Temp.) 9900378035

---- Varistor 0000361224

---- Switch Slide 9701392018---- Switch Push 9703476013---- Relay 9900007010---- Relay 9900117016

---- Fuse 3.15A-250V 0600239534

---- Drain Pipe Assy 9303029015---- Drain Cap 313166024302

Ref. Description Part No.

2006.05.25 22

INDOOR UNIT

OUTDOOR UNIT

Q’ty

2

2

4

4

1

1

2

2

1

1

Name and ShapeCoupler heatinsulation

Tapping Screw(flush heads)

Special nut A(large flange)

Special nut B(small flange)

Template

Binder(small)

Blower cover insulation

Hook wire

Remotecontrol

Remote control cord

Application

For indoor side pipe joint

For installing the remotecontroller

For installing indoor unit

For installing indoor unit

For ceiling hole cutting

For fixing the remotecontroller cord

For discharged air

For installing intake grille

For connecting the remotecontroller

ACCESSORIES

Name and Shape Q'ty Application

For outdoor unit drainpiping work (May not besupplied, depending onthe model.)

1

5

Drain pipe

Drain cap

2006.05.25 23

0605G3089