SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED type
Models
Indoor unit
Outdoor unit
MR24C3F
MR24Y3F
MW24C3F
MW24Y3F
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . 1
DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . 2
REFRIGERANT SYSTEM DIAGRAM . . . . 3
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . 4
INDOOR PCB CIRCUIT DIAGRAM . . . . . 5
OUTDOOR PCB CIRCUIT DIAGRAM . . . 8
ERROR CONTENTS . . . . . . . . . . . . . . . . 13
DISASSEMBLY ILLUSTRATION . . . . . . . 14
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . 20
STANDARD ACCESSORIES . . . . . . . . . . 22
SPECIFICATIONS
NOISE LEVEL
MW24C3F
MR24C3F
24,200 BTU/hr
-
MW24Y3F
MR24Y3F
INDOOR UNIT
47 dB
41 dB
36 dB
32 dB
52 dB
C 47 dB / H 45 dB
C 41 dB / H 41 dB
C 36 dB / H 36 dB
C 32 dB / H 32 dB
C 52 dB / H 53 dB
HIGH
MED
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
INDOOR UNIT
24,200 BTU/hr
27,600 BTU/hr
LOW
QUIET
OUTDOOR UNIT
ELECTRICAL DATA
POWER SOURCE
208 V / 230 V
208 V / 230 V
60Hz
REFRIGERANT CHARGE (R410A)
FREQUENCY
60Hz
10.1 A
-
3 lb. 8 oz. (1,600 g)
15 m
20 m
25 m
30 m
Pipe Length
COOLING
RUNNING CURRENT
HEATING
10.1 A
3 lb. 12 oz. (1,700 g)
3 lb. 15 oz. (1,800 g)
4 lb. 3 oz. (1,900 g)
0.2 oz./ft. (20 g / m)
FULL CHARGE
AMOUNT
10.8 A
2,310 W
-
COOLING
INPUT WATTS
2,310 W
2,470 W
18.0
HEATING
ADDITIONAL CHARGE
SEER
18.0
6.3 Pts/hr
(3.0 L/hr)
6.3 Pts/hr
(3.0 L/hr)
MOISTURE REMOVAL
647 cfm
(1,100 m3/hr)
647 cfm
(1,100 m3/hr)
AIR CIRCULATION -High
COMPRESSOR
TYPE
Hermetic motor compressor,
4 poles, Involute scroll type
DISCRIMINATION
POWER SOURCE
5CS160 XAA23
208 V / 230 V 60Hz
3 lb. 8 oz ( 1,600 g )
REFRIGERANT
R410A
FAN MOTOR
POWER SOURCE
208 V / 230 V
1,310 r.p.m.
1,120 r.p.m.
940 r.p.m.
HIGH
MED
INDOOR UNIT
LOW
QUIET
COOL
HEAT
830 r.p.m.
1,000 r.p.m.
-
1,000 r.p.m.
1,050 r.p.m.
OUTDOOR UNIT
DIMENSIONS
12-5/8 x 39-1/4 x 9 inch
INDOOR UNIT
H x W x D
H x W x D
320 x 998 x 228 mm
22-3/4 x 31-1/8 x 12-3/8 inch
578 x 790 x 315 mm
OUTDOOR UNIT
WEIGHT
40 / 31 lbs. (18 / 14 kg )
106 / 97 lbs. (48 / 44 kg )
Gross / Net
Gross / Net
INDOOR UNIT
OUTDOOR UNIT
2006.03.14
1
OUTLINE AND DIMENSIONS
Unit : inch (mm)
INDOOR UNIT
12-5/8"
(320)
39-1/4" (998)
9" (228)
OUTDOOR UNIT
20" (508)
3/4" (20)
23-1/4" (540)
4-15/16" (125)
2-3/8"
11-13/16" (300)
(60)
31-1/8" (790)
2006.02.23
2
REFRIGERANT SYSTEM DIAGRAM
Models : MW24C3F / MR24C3F
MW24Y3F / MR24Y3F
Heat exchanger
3-Way
valve
( INDOOR )
Muffler
2-Way
valve
4-Way valve
Strainer
Expansion valve
Strainer
Heat exchanger
( OUTDOOR )
Strainer
Cooling
Heating
Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 5/8" (15.88 mm)
2006.02.23
3
INDOOR PCB CIRCUIT DIAGRAM
Models :
MW24C3F
MW24Y3F
TERMINAL BOARD
N
N
L
THERMAL
FUSE 103
L
CONTROL UNIT
MW24C3F : EZ-005CWSE
MW24Y3F : EZ-00523HSE
OUTDOOR
UNIT
SERIAL
3
EARTH TERMINAL
EARTH
RED
WHITE
BLACK
GREEN
INDICATOR PCB ASSY
K05CY-0500HSE-D0
TM4
22007
W4
TM2
22007
TM1
22007
CONTROLLER PCB ASSY
MW24C3F : K05CX-0507WSE-C1
MW24Y3F : K05CX-0506HSE-C1
CN6
5P-SAN
1
2
3
4
5
CN201
JB20-07HG
CN11
B07B-9ASK
CN2
SJH20-05WS
CN11-1
CN11-2
CN11-3
CN11-4
CN11-5
CN11-6
CN11-7
RED
1
1
LOUVER
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
2
3
4
5
6
2
3
4
5
6
( RIGHT / LEFT )
CN2-1
CN2-2
CN2-3
CN2-4
CN2-5
RED
1
2
3
4
5
ORANGE
YELLOW
PINK
M
M
M
BLUE
7
7
CN5
SJH20-06WS
LOUVER
( UP / DOWN )
CN5-1
CN5-2
CN5-3
CN5-4
CN5-5
RED
1
2
3
4
5
ORANGE
YELLOW
PINK
BLUE
CN8
B06B-PASK
DIFFUSER
CN8-1
CN8-2
CN8-3
CN8-4
CN8-5
RED
1
2
3
4
5
ORANGE
YELLOW
CN3
2P-SCN
PIPE TEMPERATURE THERMISTOR
PINK
CN3-1
CN3-2
BLACK
1
BLUE
BLACK
2
CN1
2P-SAN
ROOM TEMPERATURE THERMISTOR
CN1-1
CN1-2
BLACK
1
BLACK
2
CN10
B06B-XARK
FAN MOTOR
CN13
B5P-SHF-1AA
CN10-6
RED
1
2
3
4
5
6
CN10-4
CN10-3
CN10-2
CN10-1
BLACK
WHITE
CN13-1
CN13-2
CN13-1
CN13-1
CN13-1
1
2
3
4
5
F. M.
YELLOW
BLUE
TEST
2006.02.23
5
CONTROLLER PCB ASSY
MW24C3F : K05CX-0507WSE-C1
MW24Y3F : K05CX-0506HSE-C1
Models :
MW24C3F
MW24Y3F
T2
MY064
H I C FOR SERIAL COMMUNICATIONS
280V
D7
1NH42
6
POWER SUPPLY CIRCUIT
D12 D2F20U
D10 D1FL20U
5
4
3
2
1
12V
D9 D1FL20U
R79, R81 - R84
5V
10K <1/10W> x 5
T1-12
W5
TH1
5D - 11
8
9
10
I C 26
20V
C4
100P
<D>
R45 100K
<RS - 2W>
C6
150/
1 315V
R67
150
<1/10W>
R70
1.2K
<1/10W>
C32
0.01
<ECQE>
I C26-10
I C26-14
JM5
AUTO RESTART / PLUG ON
I C1-76
4
4
2
1
1
14
27
R106
1.0K
</2W>8
5
5
3
3
18
8
10
6
(3)
(2)
VA6
470V
<TNR>
5V
3
C35
0.01 <F>
2
2
TEMPERATURE CORRECTION-1
JM6
JM7
I C1-42
I C1-41
I C1-75
I C1-74
K1-4
R64
1.8K
<1/10W>
R53
5.6K
R48
34K
TM2
L1
D8
1SS355
F1
I C26-10
TEMPERATURE CORRECTION-2
REMOTE CONTROL SWITCHING-1
REMOTE CONTROL SWITCHING-2
4
+
R46
47
4
3
T1
0.7A - 5.0MH
<1/10W> <1/10W>
C13 0.01
250V
FH1
Q7
2SA1037AK
<Q>2
FH2
I C8
5V
VA3
VA2
JM8
R114 390
<1/10W>
D6
GS I B460L
TOP243 <1/2W>
C38
0.1 <F>
1
3
470V
<TNR>
1
470V
<TNR>
4
OFGERING POWER R105
10K
C8 0.47
275V
I C26-14
VA1
470V
<TNR>
JM10
6
5
4
1
2
3
3
C37 C
+
820/ A
25V
D
F
S
C
L
X
R76 7.87K
<1/10W>
1%
3
1
3
1
TM4
2
<1/10W>
3
2 RI ECF19
TL431 I LPR
D14
2 DAN202K
C14 0.01
250V
I C1-6
3
2
2
C29
0.1
<F>
C50
0.01
<B>
1
R103
390
<1/10W>
R38
15K
1
2
(95)
Q11
DTC124EUA
I C15
PS2501L-1
<KD / KE>
1
JP SETTING
Q10
DTC124EUA
R34 6.8K
<1/10W>
C33
33/
<1/10W>
C54
0.01
<B>
+
(1)
TM1
35V
I C1-47
I C1-46
VA4 VA5
470V 470V
<TNR> <TNR>
(97)
7V
I C2
NJM7805
5V
(96)
JM3
C27
47/
16V
R42
270
<1/10W>
(76)
+
1
3
I
O
D4
D1FL20U
T1-12
15V LINE ON-OFF CONTROL
G
W3
280V
POWER RELAY
2
ABNOMAL VOLTAGE DETECTOR
C22
0.1
<F>
C19
330/
25V
C12
0.1
C17
330/
25V
C20
0.1
<F>
C21
0.1
<F>
C18
10/
25V
+
C25
0.1
<F>
I C20
JM9
78M15
+
20V
(18)
+
15V
(20)
A
5V
(4)
R111 330K
<1/2W>
<F>
1
3
1
O
3
I
R108
G
D15
MTZJ30B
5V
10K
(90)
2
(77)
2
<1/10W>
I C17
PS2501L-1
<KD / KE>
K1-4
3
R112 62K
<1/2W>
12V
5V
C39
100/
35V
C42
330/
25V
I C1-38
C56
0.1
<F>
1
2
4
3
5V
5V
+
+
R77 10K
<1/10W>
R78 10K
<1/10W>
K1
DW12D1
I C18-5
uLN2003
C52
1000P
<R>
CN9
R107
1.0K
<1/10W>
(91)
1
2
4
1
A
R37 10K <1/10W>
R40 10K <1/10W>
I C27
PS2501L-1
<KD / KE>
4
3
(92)
2
2
3
5
12
RESET
1
(93)
3
R65 330
<1/10W>
1
2
(19)
Q12
DTC144EUA
(94)
4
5
6
R72 100K <1/10W>
R8 1.0K <RS - 2W>
A
I C 1
uPD780148
5V
VPP
5V
12V
(48)
CN8
6
44
9
P00
P01
P02
VDD
LUVER OPERATING CIRCUIT
DIFFUSER
R35
43
42
EVDD 31
P50 56
P51 55
P52 54
I C1-43
5
I C7-3 uLN2003
I C7-4 uLN2003
14
3
I C1-42
I C1-41
I C1-40
I C1-39
I C1-38
41 P03
40 P04
39 P05
38 P06
18 P10
19 P11
20 P12
21 P13
22 P14
23 P15
24 P16
(49)
(50)
(51)
13
4
3
4
EEPROM
5
12 I C7-5 uLN2003
53
P53
5V
R39 10K <1/10W>
I C6
52
51
50
49
P54
2
1
I C7-6 uLN2003
6
5V
CN2
5
P55
P56
P57
ROOM TEMP. PIPE TEMP. THERMISTOR
BR93LC46
8
4
7
5
CS
SK
D I
NC
1
2
3
6
VCC
DO
(52)
CS
C26
0.1
<F>
I C7-7 uLN2003
7
10
1
4
R14 1.0K
<1/10W>
NC
P60 33
P61 32
P62 29
ALAM
RC
RIGHT / LEFT
3
CN1
(53)
(54)
(55)
16
I C16-1 uLN2003
15 I C16-2 uLN2003
GND
1
R52
100K
<1/10W>
2
2
1
C15
0.1
<F>
28
P64 48
R1
100K
<1/10W>
P63
ROOM TEMPERATURE
R2 10K
<1/10W>
1%
I C1-28
I C16-3 uLN2003
25
6
11
I C18-6 uLN2003
I C18-1 uLN2003
14
P17
3
2
80 P20
79 P21
78 P22
77 P23
76 P24
47
46
45
72
P65
P66
P67
I C1-47
I C1-46
6
5
(56)
1
P70
(57)
(58)
16
2
4
3
L6
BLm18
<BD102>
P71 71
I C1-76
UP / DOWN
15
I C18-2 uLN2003
I C18-3 uLN2003
I C18-4 uLN2003
75
74
70
69
68
67
P25
P26
P72
P73
P74
P75
R13 1.0K
<1/10W>
I C1-75
I C1-74
I C1-73
(36)
PIPE TEMPERATURE
1
CN3
3
14
2
1
1
73 P27
REMOTE CONTROL COMMUNICATION
12V
13
4
7
6
5
4
P30
P31
P32
2
(59)
R6 49.9K
<1/10W>
C16
0.1
<F>
P76 66
P77 65
3
I C1-6
L7
BLm18
<BD102>
CN5
12V
12V
I C16-4 uLN2003
I C16-5 uLN2003
I C16-6 uLN2003
I C16-7 uLN2003
4
13
12V
P33 P120
3
(37)
I C1-4
I C1-64
I C1-63
I C1-3
CS
9
9
9
64 P40 P130 17
12
5
63
62
P140 26
P141 27
P41
P42
I C16
I C7
I C18
6
11
I C5-2
BA10393F
8
12V
C23
0.1
8
8
8
61 P43 P142 34
7
10
60
59
35
36
I C5
5V
P44 P143
P45 P144
6
5
R21 15.4K
<1/10W>
1%
-
7
<F>
12V
+
4
58 P46 P145 37
BEN
5V
R30
10K
I C5-1
BA10393F
57 P47 AVREF
1
8
5V
R95 10K <1/10W>
R97 10K <1/10W>
R98 10K <1/10W>
R99 10K <1/10W>
D2
D1F60
12V
BUZZER
BZ1
14 RST*
12
X1
I C
VPP
2
3
<1/10W>
3
1
R22 28K
<1/10W>
1%
10
11
2
REGC
-
1
I C18-7
uLN2003
REMOTE CONTROL UNIT
+
RESET
2
13 X2
CN6
GND
R7 100K
<1/10W>
(75)
12V
(86)
D3
DAN217U
AGND
15 XT1
16 XT2
1
<RED>
EGND
30
7
10
(31)
(32)
(33)
X1
8.38MHz
<CSTLS>
1
2
3
4
5
5V
(87)
3
B Z
JP5
R54 10K
<1/10W>
2
3
4
5
16
1
<WHITE>
<BLACK>
I C1-28
I C1-73
TEST
(88)
(89)
5V
(72)
I C1-4
R17
10K
2<1/10W>
R31 390
<1/4W>
1%
I C7-1
uLN2003
R109 10K
<1/10W>
R9
0R0
1
C31
0.1
<F>
2
1
3
4
5
NC VDD
VOUT
GND
NC
5V
12V
JP SWITCHING
R4 10K
<1/10W>
(34)
(35)
C59 0.1 <F>
C47 0.1 <F>
C48 0.1 <F>
C49 0.1 <F>
RESET
R90 - R93
330 <1/10W> x 4
C34
0.1
<F>
R20 1.0K <1/10W>
CN13
I C11
BD4842
R110 10K
<1/10W>
5V
CN11
7
(65)
R101 330
<1/10W>
L3
BLm11
<A601>
LED
MANUAL AUTO SWITCH
5V
(66)
(67)
(68)
(69)
(70)
(71)
R57 330 <1/10W>
R60 330 <1/10W>
R58 330 <1/10W>
R59 330 <1/10W>
6
5
4
3
2
1
CN14
(43)
3
2
1
OUTSIDE COMMUNICATION
I C25
PS2561L-1-V
R32 10K
<1/10W>
(74)
OUTSIDE COMMUNICATION
INPUT
(44)
(101)
1
4
R33 1.0K
<1/10W>
(73)
I C1-3
3
2
C51
0.01
<B>
I C1-40
C28
R113 47
<1/10W>
C53
1000P
<R>
SW1
C40
100/
16V
+
L3
BLm11
<A601>
0.01
<B>
C41
0.01
<B>
R88 1.0K
<1/10W>
R102 390 <1/10W>
R104 10K <1/10W>
LED FOR INDICATOR & REMOTE CONTROL UNIT
I C10
I C1-64
I C1-63
THE SWITCH FOR OPENING
AND CLOSING OF A PANEL
5V
15V
PS2501L-1
<KD / KE>
5V
I C7-2
uLN2003
THE CIRCUIT FOR FAN MOTERS
12V
R51 1.0K
<1/4W>
1%
R94 330
<1/10W>
R43 330
<1/10W>
C36
100/36V
+
1
4
DC FAN
CN10
I C22
PS2561L-1-V
2
340V
15
R115
10K
<1/10W>
2
3
(79)
1
4
K10
G5N-1A
1
R55
820
<1/4W>
6
5
4
3
2
1
(42)
(45)
2
1
(15)
(14)
3
CN16
2
3
C1
0.1
I C1-39
I C1-43
4
Q6
DTC124EUA
2
2
A
A
OUTSIDE COMMUNICATION
OUTPUT
15V
5V
1
2
3
<HCP>
C55
0.01
<B>
R116 1.0K
<1/10W>
15V
(78)
1
CN20
R47 10K
<1/10W>
A
(46)
(100)
(13)
1
2
4
3
(12)
C30
1000P
<R>
R44
1.0K
<1/10W>
I C14
PS2501L-1
<KD / KE>
R56 R63 6.8K
4.7K <1/4W>
<1/10W>
(11)
2006.02.23
6
Models :
MW24C3F
MW24Y3F
INDICATOR PCB ASSY
K05CY-0500HSE-D0
5V
5V
CN201
1
2
3
4
5
6
7
D201
SLR-325
D202
SLR-325
D203
SLR-325
C201
0.1
<F>
5V
I C201
R201
GP1UM261R
47
<1/4W>
2
1
3
VCC
OUT
GND
+ C202
47/
10V
2006.02.23
7
OUTDOOR PCB CIRCUIT DIAGRAM
Models :
MR24C3F
MR24Y3F
INVERTER ASSY
EZ-0050AHUE
UL1015
AWG14
WHITE
EMI FILTER
N
L
3
2
1
UL1015
AWG14
BLACK
UL1015
AWG14
BLACK
POWER SOURCE
AC220 - 240V
50 / 60Hz
B
W1
EMI FILTER
UL1015
AWG20
RED
F200
TLC 25A - 250V, B
TM101
TM102
UL1015 AWG14 ORANGE
W28
B
B
W2
UL1015
AWG20
BLACK
+
INDOOR UNIT
UL1015
AWG20
WHITE
-
POWER SUPPLY PCB
K05CW-0500HUE-FL0
D100
D25XB60
UL1015 AWG14 BROWN
W29
B
B
W17
EMI FILTER
B
W18
F100
FSL 3.15A - 250V (EM)
UL1015
AWG16
GREEN
W16
B
UL1015 AWG14 RED
W3
B
CT I N / OUT
B
B
W19 W20
B
W9
B
W21
CN100
W17
B
CHOKE COIL
L = 0.3MH 30A
UL1015 AWG14 BLACK
EARTH
1
2
TR PCB ASSY ( I P M )
K05CZ-0500HUE-TR0
UL1015
AWG14
WHITE
UL1015
AWG14
WHITE
CAPACITOR PCB ASSY
K05DG-0500HUE-P0
L1
L2
UL1015
AWG14
YELLOW
EMI FILTER
+
RED
TM301
TM302
TM305
TM304
TM303
ACTPM
B
B
WHITE
BLACK
-
I C 404
SACT32010F1
C. M.
UL1015
AWG14
WHITE
UL1015
AWG14
BLUE
CN110
B2P3-VH-B-Y
YELLOW
CN1
B2B-XH-AM BLK
BLACK
TM600
TM601
W12
B
P
COMPRESSOR
UL1015 AWG14 x 3
3
1
1
2
AC VOLT I N
POWER RELAY CONTROL
CT I N / OUT
UL1015
AWG14
VIOLET
N1
N2
I O
W13
B
B
W4
CN301
B10B-XASK-1
WHITE
CN303
B2B-XH-AM
WHITE
EMI FILTER x 2
W307
B
SERIAL
RED
6
5
4
3
2
1
W306
B
I PM CONTROL
PEAK LOAD CURRENT
2
1
1
8
10
2
3
4
5
6
7
9
CN801
B5P6-VH-B-L
WHITE
RED
1
2
3
4
5
6
CONTROLLER PCB ASSY
K05CU-0507HUE-C1
BLACK
WHITE
YELLOW
BROWN
DC FAN MOTOR
F. M.
M
DC FAN MOTOR
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
1
2
3
4
5
6
CN700
B6B-XARK-1-A
RED
EXPANSION VALVE
CN40
B10B-XASK-1
WHITE
CN200
B2P4-VH-B-M
WHITE
C42
B2B-XH
WHITE
CN400
B4B-XASK-1-A
WHITE
4
3
2
4
1
1
8
I PM CONTROL
10
2
1
1
2
3
4
5
6
7
9
DC VOLT I N
PEAK LOAD CURRENT
ACTPM CONTROL
4-WAY VALVE
BLACK
BLACK
CN500
B2P3-VH-B-C
WHITE
1
3
CN60
B2B-XH-AM YEL
YELLOW
DISCHARGE TEMP. THERMISTOR
PIPE TEMP. THERMISTOR
BROWN
BROWN
1
2
CN61
B2B-XH-AM RED
RED
BLACK
BLACK
1
2
OUTDOOR TEMP. THERMISTOR
CN62
B2B-XAEK-1-A
BLUE
BLUE
BLUE
1
2
2006.02.23
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