SPLIT TYPEAIR CONDITIONER

(60Hz)CASSETTE type

Models

Indoor unit Outdoor unit

MC24Y3F MR24UY3F

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 1

DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2

REFRIGERANT SYSTEM DIAGRAM . . . . . . . 4

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . 5

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

7INDOOR PCB CIRCUIT DIAGRAM . . . . . . . .

. . . . . . 8OUTDOOR PCB CIRCUIT DIAGRAM

11

DISASSEMBLY ILLUSTRATION . . . . . . . . . . 13

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 21

STANDARD ACCESSORIES . . . . . . . . . . . . . 23

INDOOR UNIT H x W x D

DIMENSIONS

INDOOR UNIT Gross / Net

Gross / NetOUTDOOR UNIT

WEIGHT

POWER SOURCE

COOLINGRUNNING CURRENT

HEATING

INPUT WATTSCOOLING

HEATING

E.E.R.COOLING

HEATING

STARTING CURRENT

MOISTURE REMOVAL

AIRCIRCULATION -High

FAN MOTOR

TYPE

DISCRIMINATION

REFRIGERANT R410A

DISCRIMINATION

HIGH-SPEED

HIGH-SPEED

INDOOR UNIT( Cool / Heat )

MED-SPEED

LOW-SPEED

DISCRIMINATIONOUTDOOR UNIT( Cool / Heat )

TYPE COOLING & HEATING

INDOOR UNIT MC24Y3F

OUTDOOR UNIT MR24UY3F

COOLING CAPACITY

HEATING CAPACITY

44 kg / 34 kg

70 kg / 64 kg

9.2 / 10.1 A

10.4 / 11.4 A

2.10 / 2.10 kW

2.37 / 2.37 kW

3.10 / 3.10 kW/kW

3.00 / 3.00 kW/kW

9.5 A

3.0 l/hr

1,050 m3/hr

1 230 / 208 V 60Hz

Total enclosed type, 4 poles,

Inverter, Twin Rotary

TNB220FPBM9

4 lb 3 oz, 1,900 g

S-LOW-SPEED

MFA-24RPT

490 r.p.m. / 440 r.p.m.

430 r.p.m. / 380 r.p.m.

360 r.p.m. / 330 r.p.m.

MFE-45ROM

850 r.p.m. / 900 r.p.m.

- / 250 r.p.m.

22,200 / 22,200 BTU/h

24,200 / 24,200 BTU/h

ELECTRICAL DATA

COMPRESSOR

H x W x DOUTDOOR UNIT32-3/4" 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 )

2006.05.25 1

SPECIFICATIONS

REFRIGERANT CHARGE (R410A)

MAX PIPE LENGTH

MAX PIPE HEIGHT

Pipe Length 49 ft. (15 m)

66 ft. (20 m)FULL CHARGEAMOUNT

98 ft. (30 m)

131 ft. (40 m)

164 ft. (50 m)

50 m

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 REFRIGERANT

NOISE LEVEL

HIGH-SPEED

INDOOR UNIT MED-SPEED

LOW-SPEED

COOL

HEAT

45.0 dB

43.0 dB

38.0 dB

OUTDOOR UNIT53.0 dB

55.0 dB

0.424 oz / ft. (40 g / m)

INDOOR UNIT

unit : 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 UNIT

unit : 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 Pipe9.52mm (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

YELLOW

YELLOW

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

BLACK

PURPLE

BLUE

RED

WHITE

WHITE

REDRED

WHITE

WHITE

WHITE

GREEN /

YELLOW

WHITE WHITE

YELLOWYELLOW

ORANGE ORANGE

RED RED

BROWN BROWN

WHITE

BLACK

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 MOTOR

CAPACITOR

G

TERMINAL

TO OUTDOOR UNIT

32(N)

1

CONTROLLERPCBASSY

POWER SUPPLY

PCB 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 : MC24Y3FCONTROLLER PCB ASSEMBLY

K01AL-050LHSE-C1

2006.05.25 7

INDOOR PCB CIRCUIT DIAGRAM

Model : MR24UY3F

POWER SUPPLY PCB ASSY

K04BA-0500HUE-P0

CONTROLLER PCB ASSY

K04AW-0502HUE-C1

INVERTER ASSEMBLY

EZ-005FHUE

2006.05.25 8

OUTDOOR PCB CIRCUIT DIAGRAM

600/450V x 4

2006.05.25 9

CONTROLLER PCB ASSEMBLY

K04AW-0502HUE-C1

Model : MR24UY3F

5V

TM101

TM102

C112

0.015

<YE>C113

0.015

<YE>

C111

3.3

<LE>

L4

RCH4730-021PF07

C107

3.3

<LE>

TM100

L2

N200500K1D7C

CT1

CT-1B

5VD60

DAN217U

C64

0.1

<F>

R68 22K

<1/10W>

C65

0.1

<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

B

B

B

B

B

B

BLACK

WHITE

TO INDOOR UNIT

POWER SOURCE

230V

60Hz

EARTH

AC VOLT OUT

W5

W6BLACK

WHITE

W7

GREEN

W3

W8BLACK

WHITE

W9

W4

L1

RCH4730-021PF07

CN1

B3B-XASK-1-AWHITE

CT OUT

1

2

3

POWER SUPPLY PCB ASSEMBLY

K04BA-0500HUE-P0

2006.05.2510

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

DISASSEMBLY

ILLUSTRATION

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

3

4

52

2006.05.25 17

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

PARTS LIST

INDOOR UNITRef. Part No. Ord. Ref. Part No. Ord.No MC24Y3F Q'ty No MC24Y3F Q'ty32 Control Box Assy 67200589 472-3 RFM (Grille)-C 6720056234 Capacitor (Fan Motor) 67220259 472-4 RFM (Grille)-D 6720056361 Decoration Plate 67200591 472-5 RFM (Grille)-E 6720056471 Holder (Hook) 67200557 474 Turbo Fan Assy 6720058793 Filter 67200555 476-2 Washer(Turbo Fan) 67207465

122 Holder(LouverSupporter) 67200569 479 Float Switch 67200614127 Drain Hose 67200548 481 Insulation (Grille)-A 67200615138 Separate wall 67200600 481-1 Insulation (Grille)-B 67200616

146-1 Evaporator-A Assy 67200601 482 Pump Unit 67200617146-2 Evaporator-B Assy 67200602 484 Hook 67200618160 Kit (Drain Pan Sub Assy) 67200603 487 Hinge Wire (Grille) 67200619164 Motor, Induction 67220260 488 Drain Pan Plug 67200550168 Cabinet-E 67220210 514 ControlBox Cover 67200542

184-1 Thermistor Spring-A 67206400 522 Joint Gear 67200567187 Clamp No. 1219 67220226 541 TerminalBase 67201709195 Binder-C 67220227 541-1 TerminalCover 67201708197 Wind Guide Board 67220261 542 PanelBase 67200575212 Clamp NK-4N 67200453 543 Holder (Panel Frame) 67500576223 Control Box 67200590 544 Holder (Panel Base) 67500574226 Motor Gear 67200572 545 Panel Frame 67200577234 Room Temp. Thermistor 67203505 563 InnerBox 67200620235 Pipe Temp. Thermistor 67203506 565 EvaporatorHolderAssy 67200552236 Controller PCB Assy 67203713 625 Cord Bushing 67230030

(K01AL-05L1HSE-C1) 690 Joint-A 67200621240 Remote Control Unit 67200604 692 Joint Shaft 67200622244 Pipe CoverAssy 67200605 705 LouverAssy 67200593

253-A Wire Assy 67200606 710 Intake Grille 67200623320-1 Wire Clamp Metal 67200607 731-2 Holder 67200566334 Wire Cover 67200608 735 Distributor Assy 67200595

337-1 RFM (Eva. )-A 67200609 777-1 Hook (Grille)-A 67200558337-2 RFM (Eva. )-B 67200610 777-2 Hook (Grille)-B 67200559338 Motor Holder 67200573 798 Drain Pump Holder 67200594380 Locking Spacer 67207455 803 Cabinet-D 67220209

381-4 Spacer 67207464 814 Cabinet-C 67220208457 RFM (Drain Pan) 67200503 815-1 Terminal-3P 67200585

460-1 Pump Cover-A 67200611 815-2 Terminal-3P 67200584460-2 Pump Cover-B 67200612 834-1 Cover(Wire)-A 67200596462 Panel(Top)Assy 67200592 834-2 Cover(Wire)-B 67200597464 Cabinet-A Assy 67220206 835 Cushion (Pump) 67200545465 Cabinet-B Assy 67220207 847 LouverSupporter 67200570467 Drain Port 67200551 858 Spring (Grille) 67200565468 M10 Nut-A (Large) 67207462 875 Power Supply PCB Assy 67200598469 M10 Nut-B (Small) 67207463 876-2 Motor,Step 67200599

472-1 RFM (Grille)-A 67200560 896 Coupling Pipe Assy 67200613472-2 RFM (Grille)-B 67200561

2006.06.13 21

DescriptionDescription

OUTDOOR UNITRef. Part No. Ord.No MR24UY3F Q'ty1 Top Panel Sub Assy 672016402 Front Panel 672016013 Fan Guard 672016024 Grip Side 672016035 Service Panel Sub Assy 672016886 Right Panel 672016058 Propeller Fan Assy 672016079 Motor, Induction 67201608

10 Condenser-A Assy 6720160911 CoilChoke 6720163312 Strainer Assy 6720161113 Separate Wall Assy 6720164714 Cap Foot 6720165015 Base Assy 6720164817 3-Way Valve Assy (3/8) 6720161418 3-Way Valve Assy (5/8) 67201615

19 Check Joint Assy 6720161620 CompressorAssy 6720168922 4-Way Valve 6720161923 Solenoid 6720168124 Pressure Switch 6720162125 Inlet Pipe Cond A Assy 6720162226 Inlet Pipe Cond B Assy 6720169027 Outlet Pipe Cond A Assy 67201691

28 Expansion Valve Assy 6720169229 Coil (Expansion Valve) 6720142230 Distributor 6720169331 Discharge Pipe A Assy 6720169433 Terminal2P 6722018134 Terminal5P 6720163235 ACTPM 6720162736 Holder Thermo 67201628

37 Inverter PCB Assy 6720169538 Power PCB Assy 67201696---- Fuse 3.15A-250V 67201697---- Thermistor (Outdoor Temp.) 67201686---- Heat Exchanger Thermistor 67201698---- Thermistor (Discharge) 67201635---- Compressor Thermistor 67201637---- Thermistor 67201430

---- Heatsink Thermistor 67201685---- Transformer 67201699---- Varistor 67201700---- Arrester 67201701---- Relay 67201702---- Relay 67201703---- Switch Push 67201704---- Switch Slide 67201705

---- Drain Pipe Assy 67201706---- Drain Cap 67201707

2006.05.25 22

Description

INDOOR UNIT ACCESSORIES

OUTDOOR UNIT ACCESSORIES

Q’ty

2

2

4

4

1

1

2

2

1

1

Name and Shape

Coupler heatinsulation

Tapping Screw(flush heads)

Special nut A(large flange)

Special nut B(small flange)

Template

Binder(small)

Blower cover insulation

Hook wire

Remotecontroller

Remote controller 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

STANDARD

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