Friedrich MW18C3F User manual

SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED TYPE
ERROR CONTENTS ..................
Indoor unit Outdoor unit
MW18C3F MR18C3F
CONTENTS
SPECIFICATIONS ..................... 1
OUTLINE AND DIMENSIONS ........... 2
ACCESSORIES ...................... 16
REFRIGERANT SYSTEM DIAGRAM ...... 3
CIRCUIT DIAGRAM ................... 4
INDOOR PCB CIRCUIT DIAGRAM 5
OUTDOOR PCB CIRCUIT DIAGRAM 8
10
.....
.......
DISASSEMBLY ILLUSTRATION ........ 11
PARTS LIST ......................... 14

2006.03.06 1
INDOOR UNIT
HxWxD
HxWxD
275 x 790 x 215 mm
OUTDOOR UNIT 578 x 790 x 300 mm
10-13/16 x 31-1/8 x 8-7/16 inch
22-3/4 x 31-1/8 x 11-13/16 inch
DIMENSIONS
INDOOR UNIT Gross / Net
Gross / Net
26 lbs. / 20 lbs. (12 kg / 9 kg)
OUTDOOR UNIT
97 lbs. / 88 lbs. (44 kg / 40 kg)
WEIGHT
SPECIFICATIONS
TYPE COOLING ONLY INVERTER
INDOOR UNIT MW18C3F
OUTDOOR UNIT MR18C3F
COOLING CAPACITY 18,000 Btu/h (5.28 kW)
POWER SOURCE 208 - 230 V
FREQUENCY 60 Hz
RUNNING CURRENT 7.7 A
INPUT WATTS 1.73 kW
E.E.R. 3.05 kW /kW
MOISTURE REMOVAL 5.9 Pt/h (2.8 L/hr)
AIR CIRCULATION -High 412 cfm (700 m3/hr)
FAN MOTOR
TYPE Hermetic type, 4 pole, 3 phase,
DC inverter motor, Rotary
DISCRIMINATION DA130A1F-25F
REFRIGERANT
R410A
2-9/16 lbs. (1,150 g)
POWER SOURCE 208 - 230 V
HIGH-SPEED
1,480 r.p.m.
INDOOR UNIT
MED-SPEED
1,260 r.p.m.
LOW-SPEED
1,040 r.p.m.
QUIET
850 r.p.m.
OUTDOOR UNIT 860 r.p.m.
ELECTRICAL DATA
COMPRESSOR
INDOOR UNIT
25 dB
OUTDOOR UNIT 50 dB
44 dB
32 dB
38 dB
NOISE LEVEL
REFRIGERANT (R410A)
Pipe Length
49 ft. (15 m)
2-9/16 lbs. (1,150 g)
FULL CHARGE 66 ft. (20 m)
HIGH
MED
LOW
QUIET
2-3/4 lbs. (1,250 g)
ADDITIONAL REFRIGERANT
3/16 oz./ft. (20 g/m)

DIMENSIONS
Models : MW18C3F / MR18C3F
unit : inch (mm)
2006.03.06 2
10-13/16 (275)
31-1/8 (790)
8-7/16
(215)
13-11/16 (347)
22-3/4 (578)
1-7/8 (48)
3/8 (10)
12-5/8 (320)
20 (508)
21-1/4 (540)
13/16 (20)
11-13/16
(300)
4-15/16 (125)
2-5/8
(66)
31-1/8 (790)

REFRIGERANT SYSTEM DIAGRAM
2-Way valve
Strainer
Strainer
Sub-heat
exchanger
( INDOOR )
3-Way valve
Muffler
4-Way valve Expansion valve
Heat exchanger
( INDOOR )
Heat exchanger
( OUTDOOR )
Sub-accumulator
Compressor
Cooling
Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 1/2" (12.7 mm)
Model : MW18C3F / MR18C3F
2006.02.28 3

CIRCUIT DIAGRAM
INDOOR UNIT
OUTDOOR UNIT
Model :
MW18C3F / MR18C3F
2006.02.28 4
RED
WHITE
BLACK
RED
WHITE
BLACK
RED
BLACK
WHITE
YELLOW
BLUE
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
WHITE
RED
YELLOW YELLOW
BLACK
BLACK
BROWN
BROWN
BLACK
BLACK
WHITE
WHITE
RED
BLACK
BLACK
BLACK BLACK
GREEN
CN71
W10
W11
W7
W9
W8
CN801
W4
W2
W1
W3
CN40
CN30
CN70 1
5
4
3
2
6
1
5
4
3
2
6
1
5
4
3
2
6
1
5
4
3
2
1
3
2
1
3
2
6
1
4
3
2
1
4
3
2
1
3
2
1
3
2
1
3
2
1
3
2
2
21
1
L1 L23
2
1
FUSE
5A-250V
TO INDOOR UNIT POWER SUPPLY
G
TERMINAL
FUSE 20A-250V
PIPE TEMP. THERMISTOR
DISCHARGE PIPE TEMP. THERMISTOR
OUTDOOR TEMP. THERMISTOR
REACTOR
FAN MOTOR
COMPRESSOR
EXPANSION VALVE
4-WAY VALVE
4WV
EV
FM
CM
S(S)
C(T)
R(R)
CONTROLLER PCB ASSY
ORANGE
RED
YELLOW
PINK
BLUE
BLACK
BLACK
BLACK
BLACK
YELLOW
BLUE
WHITE
BLACK
RED
RED
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
GRAY
GRAY
WHITE
BLACK
RED
GREEN /
YELLOW
G
321
1
6
5
4
3
2
1
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
777
1
2
1
2
1
3
2
1
3
2
CN1
CN7
CN5 CN6 CN2
CN3
CN10
CN201
W1
W3
W2
THERMAL FUSE
102
TERMINAL
TO OUTDOOR UNIT
VARISTOR
FUSE
3.15A
FAN MOTOR
STEP MOTOR
PIPE TEMPERATURE
THERMISTOR
ROOM TEMPERATURE
THERMISTOR
SW
POWER CIRCUIT
FM
M
CONTROLLER PCB ASSY
INDICATOR PCB ASSY

CN3-1 BLACK
CN3-2 BLACK
CN2-1 BLACK CN2-2 BLACK
CN7-1 RED CN7-2 ORANGE CN7-3 YELLOW CN7-4 PINK CN7-5 BLUE
CN4-6 RED CN4-4 BLACK CN4-3 WHITE CN4-2 YELLOW CN4-1 BLUE
CN3-1
CN3-2 CN3-3
CN3-4
CN3-5
CN10-2 WHITE
CN10-1 RED
CN10-3 BLACK
CN3-2 WHITE
CN3-1 RED CN3-4 WHITE
CN3-5 WHITE
CN3-7 WHITE
CN3-8 WHITE CN3-9 WHITE
1
7
6
5 4 3 2
1
7
6
5 4 3 2
1
5 4 3 2
1
5 4 3 2
6
2 3 4 5
1
1
3
1
3
1
2
CN11
B2B-XH
W1
WHITE
W2 BLACK
W3 RED
CN12
B3B-XH
CN6
2P-SCN
1
5 4 3 2
1
2
1
2
CN5
2P-SAN
CN2
53325-0510
CN3
S7B-ZR-3.4 ZHR-07
CN7 B3B-XASK
CN10 B5B-XASK
CN8 BS5P-SHF-1AA
TEST
CN1 S5 (6-5) B-XARK
FAN MOTOR LOUVER
PIPE TEMPERATURE THERMISTOR
ROOM TEMPERATURE THERMISTOR
REMOTE CONTROL UNIT
CONTROLLER PCB ASSY
K04CP-0504WSE-C1
INDICATOR PCB ASSY
K02CB-0300HSE-D0
CN201 JB20-07HG
EX-OUT EX-I N
OUTDOOR UNIT
TERMINAL BOARD
TERMINAL FUSE
103
N
L
SERIAL
EARTH EARTH
TERMINAL
N
L
3
F. M. M
EXTERNAL COMMUNICATION CONNECTOR
CONTROL UNIT
EZ-005EWSE
INDOOR PCB CIRCUIT DIAGRAM Model : MW18C3F
2006.02.28 5

VA1 270V <TNR>
VA2 270V <TNR>
F1
3.15A - 250V
W2
BLACK
W1 WHITE
W3 RED
W4 GREEN
GND
TERMINAL BOARD
3N L
C3
0.22
<LE>
1
1
5 7 8
4
4
3
2
1
610
7
5
4
1
2
2 3
2
4
3
L1
D1
R2 2.2 <RGG-5W>
160V
5V 5V
20V
++
+
C5
100/
420V
D2 1NH42 D3
D1FL20U
R4 100K
<RS - 2W>
R41 10K
<1/10W>
(1%)
R42 49.9K
<1/10W>
(1%)
R43 1K
<1/10W>
R44 1K
<1/10W> R39 10K
<1/10W> R28 10K
<1/10W>
R29 10K
<1/10W>
C7 0.01 <ECQE>
C11 0.01
<F>
IC5
TNY266P
R5 2.0M <1/2W>
R7 18K
<1/10W>
D4
D2FL20U
C13
330 / 25V
EN/UVD
S
S
S S
BP
C10 100/ 35V
C6 0.1
<F> C12
4700P <E>
C15 0.01 <B>
C45 0.1
<F>
C46 0.1
<F>
T1
ETS19AB1P8AG
CN5
1
1 2
2
ROOM TEMPERATURE THERMISTOR
HEAT EXCHANGER THERMISTOR
13.5V
C A
REF
IC8 TL431 I LP
IC11 PS2501L-1 <KD / KE>
R9 8.25K <1/10W> (1%)
R11 1K <1/10W>
R8 34K <1/10W> (1%)
R10 47K <1/10W>
A
A
1 2
4 3
A
18 14 10
5 4 3 2 1
IC10
8 7 6 5 4 3
3
3
2
2
2
1
1
1
5V
D7 DAN202K
20V 15V
R3 1K
<1/2W>
IC7 78M15
C16 0.1 <F>
C18 0.1 <F>
C17 330/ 25V
+
1
2
3
IGO
R27 390 <1/10W>
C34 0.01 <B>
C33 0.01 <B>
5V
Q2 DTC124EUA
Q1 DTC124EUA
R25 10K <1/10W> R26 390
<1/10W>
13.5V 12V 5V 5V
5V 5V
5V
CN7 B3B-XASK
112
2
33
+++
IG
O
D6 D1F60
C19 330/ 25V
IC6 NJM7805
2 1 3
4 5
VDD NC
NC
VOUT GND
IC2 BD4842
C20 0.1 <F>
C24 0.1 <F>
C26 0.1 <F>
C25 0.1 <F>
C23 10/ 25V
C22 330/ 25V
IC1
UPD780058
REM
WIR
61 62 63 64 65 66 73 72 76 77 78 79 80
60 27 28 29 30 31 32 34 35
1 2 3 11 12 13 14
36 37 38 39 40 41 42
15 43 16 17 18 44 45 46 47 48
8 9 10 52 53 54 55 56
49 50 51 19 20 21 22
57 58 59 5 6 71 70
23 24 25 26
69 4 67 33
74 68 75 7
P00 P01 P02 P03 P04
VDD0 VDD1 AVR F 0 AVR F 1 RST
P05 XT1 XT2 P10 P11 P12 P13 P14 P15 P16 P17
P50
P51 P52 P53 P54 P55 P56 P57 P60 P61 P62
P20 P21 P22 P23 P24 P25 P26 P27
P63 P64 P65 P66 P67 P70 P71 P72
P30 P31 P32 P33 P34 P35 P36 P37 P40 P41
P120 P121 P122 P123 P124 P125 P126 P127 P130 P131
P42 P43 P44 P45 P46 P47
IC X1 X2
AGND GND0 GND1
RXD TXD
VPP
1
3
2
X1 5.00MHz <CSTS>
5V
5V
R21 1K <1/10W>
R22 10K <1/10W>
R24 10K <1/10W>
C27 0.1 <F>
IC3
8 4 6 5
1 2 3 7
VCC D0 TEST GND
CS SK D1 NC
12V
BZ
R38 10K <1/10W>
BZ1 PKM13EPY-4000
IC4-6 LN2003
11 6
RXD TXD VPP
R23
5V
R80
R81 R82 R83 10K <1/10W> x4
330 <1/10W> x6
R84 R85 R86 R87 R89
5V
R15 R20
R16 R17
R18
R19
10K <1/10W> x6
5V
JM7 JM6 JM5 JM4 JM3 JM2
R37 R36 R35 R34
330 <1/10W> x4
5V
R33 R30
R32R31
10K <1/10W> x4
1 2 3 4 5
CN8 BS5P-SHF
TIMER SHORT CIRCUIT CLOCK DO DI
TEST
IC13 PS2501L-1 <KD / KE> IC12 PS2501L-1 <KD / KE>
1
2
3
R50 330 <1/10W>
R53 1K <1/10W>
R54 10K <1/10W>
R56 6.8K <1/4W>
R55 4.7K <1/10W>
Q6 DTC124EUA
5V 15V
15V
5V
C50 1000P <R>
C62 0.1 <F>
1 2
4 3
4 3
1 2
R51 1K <1/4W>
(1%)
R66 390 <1/4W>
(1%)
R65 10K <1/10W> R64 28K
<1/10W>
(1%)
R63 15.4K <1/10W>
(1%)
R68 1K <1/10W>
R62 10K <1/10W>
R67 10K <1/10W>
R52 820 <1/4W>
(1%) AA
+
C53 100 / 16V
DC FAN MOTOR
CN1 S5 (6-5) B-XARK
CN2 53325-0510
CN10 B5B-XASK
15V
160V
D50 RD27M <B> A
123456
IC4-4 LN2003
IC4-5 LN2003
IC4-3 LN2003 IC4-2 LN2003 IC4-1 LN2003
4 3 2
1
13 14 15
16
12V
5432 1
512
5V
JP5
D61 DAN217U
D60 D1F60
12V
12V
12V
12V
12V
IC9
8 4
12V
IC4
9
8
WIR
5V
IC9-2 BA10393F
IC9-1 BA10393F
76
5
-
+
12
3
-
+
54321
RED WHITE BLACK
REM C60
1000P <R>
C81 0.01 <B>
C80 100 / 16V
R61 10K <1/10W> R60 47
<1/10W>
5V
+
765 43 21
CN3 S7B-ZR-3.4
MANUAL AUTO SWITCH (KSM0632B)
LOUVER
ROOM TEMPERATURE CORRECTION 1 ROOM TEMPERATURE CORRECTION 2
AUTO RESTART HOME AUTOMATION
CUSTOM CODE 2 CUSTOM CODE 1
CONTROLLER PCB ASSEMBLY
K04CP-0504WSE-C1
Model : MW18C3F
C35 0.1 <F> C36 0.1 <F> C37 0.01 <B> C38 0.1 <F>
CN6
C29 10K C30 1000P <R> C31 1000P <R>
IC4-7 LN2003
512
JP SETTING
REMOTE CONTROL UNIT
INDICATOR PCB
JP2 JP3JP4
JP1
R6 100K
<1/10W>
2006.02.28 6

72006.02.28
Model : MW18C3F
+
5V
C201
0.1
<F>
R201
47
<1/4W>
C202
47/
10V
I C201
GP1UM261R
5V5V
CN201
1
1
1
1
2
2
2
2
2
1
3
VCC
OUT
GND
D206 SLR-325
D204 SLR-325
D203 SLR-325
D201 SLR-325
1
6
8
7
5
4
3
2
9

Model : MR18C3F
2006.02.28 8
INVERTER ASSEMBLY
EZ-005SHUE
OUTDOOR PCB CIRCUIT DIAGRAM
TO INDOOR UNIT
F201 20A-250V
F202 5A-250V
UL1015 AWG14 W101 BLACK UL1015 AWG20 W102 BLACK UL1015 AWG20 W103 BLACK UL1015 AWG20 W100 WHITE
TERMINAL
UL1015 AWG14
BLACK
UL1015 AWG14
WHITE
UL1015 AWG20
RED
UL1015 AWG16
GREEN
W1 ( A-1 )
W2 ( B-1 )
W4 ( D-1 ) W3 ( C-1 )
B B B B
BB
W10 W11
W7
W9
W8
B B B
UL3271 AWG16
BLACK
UL3271 AWG14
WHITE
UL3271 AWG14 RED
UL3271 AWG16
RED
UL3271 AWG16
WHITE
EMI FILTER
U
V
W
BLACK BLACK
RED
BLACK
WHITE
YELLOW
YELLOW
BROWN
WHITE
ORANGE
BLUE
BROWN
RED
1 6 5 4 3 2
1 6 5 4 3 2
1 3 2
BLACK
WHITE
RED
CN30
B2P3-VH-B-C
BLACK
CN801
B5P6-VH-B-L
WHITE
CN40
B6B-XARK-1-A
RED
CN71 B04B-PASK-1 WHITE CN70 B03B-PASK-1 WHITE
1 4 3 2
1 3 2
BLACK BLACK
BLACK BLACK
BROWN BROWN
DISCHARGE TEMPERATURE THERMISTOR
PIPE TEMPERATURE THERMISTOR
OUTDOOR TEMPERATURE THERMISTOR
N
L
SERIAL
1
2 3
AC208-230V 60Hz
REACTOR
EXPANTION VALVE
DC FAN MOTOR
4-WAY VALVE
COMPRESSOR
A
C. M.
F. M.
M
CONTROLLER PCB ASSY
K05CM-0507HUE-C1
L1 L2

PFC5000-0702F
PFC5000 -0702F
C1 0.1/ 275V
C6 3.3/275V
C4 0.01/250V
C5 0.01/250V
L1
RCH4716-070PF07
LL25XB60 x 2
D100 D101
AOUS09LAC
AOUS12LAC
15V
L300 ELC0607RA
C209 0.1 <F>
+
C210 0.1 <F>
C211 0.1 <F>
C212 0.1 <F>
C221 0.1 <F>
C222 1.0 <B>
D203 MTZJ T-77 24B
C220 47 / 35V
W7 W8 W9
I C200
FSBS20CH60
C214 2200P <B>
R210 1.0K
DC V
UVW
WVU
R307 195K
<RN-1/2W>
R308 195K
<RN-1/2W>
15V
5V
5V
5V
5V
-12V
5V
C213 0.022 <F>
C219 1000P <B>
5V
5V
R339 10K R334
10K
1%
R220 1.0K
C320
0.15
<ECQB>
R336
10K
1%
R335
10K
1%
R333
10K
1%
D304
DAN217U
D303
DAN217U
C86
470P
<B>
C84
0.1 <F>
C206-C208 C215-C217
2200P <B> x 6
195K <RN-1/2W> 1% x 6
R306 R305
R304 R303
R301R302
U/50P
V/52P W/54P X/51P Y/53P Z/55P I PM-TRIP / 33P
I PM-G
IPM-G
I PM-G
IPM-G
POW_GND
P63 VCC
17
16
2
35
3
59 58 60
21
34 47
27
28
29
30
31
32 33
57
41
42
43
44
10
9
8
7 5
648
19
1
61 62
63 64
20
18
15
14
55 54
53
52
51 50
46 45
12
39 38 37 36
40
26
25
11
56
P62
P46 P12
P50
P37
P36 P40
MD2
P11
P26
P02 P03 P04 P05
P06
P07 P10
C
P20 P21 P22 P23 P57
P56 P55 P54
P52 P53
AVC C
P00
P01
P17 P13
P14
P15 P16
AVR
P24
P25
P30
P31
P32 P33
P34
P35
P60
P61
MD0
MD1
P44
P43
P42
P41
P45
RSTX
P27
15V DCV-F
T60
RPZ-1F
1 5
4 3 2
10
9 8
7
6
+C64
330/
25V
D60
D1FL20U
D61
D1FL20U
D62
D1FL20U
D63
1SS355 +C65
470/ 25V
12V
5V
+C68
100/ 25V
C67 0.1 <F>
R61 1.0K
-12V
+C69
100/ 25V
D64
1SS355
1
2
3
IO
G
IC60
BA7805
+
C66
100/
25V
IC50
TOP243P
1
2 3
45
7
8
M
S
S
S
S
CD
+
R51
47
C50
47/
35V
C300
100P
<CH>
R83 27K
<1/10W>
R81
1.0K
<1/16W>
+
I C302-2
BA2903F
C85
10/
25V
15V
-
+
2
31
12
13 14
+
-
15V
-12V
C115
0.1
<F>
C116
0.1
<F>
5V
R135
10K
1%
R504 10K
<1/10W>
I C500
MB90460
JM501
R500
10K
R502
1.0K JM500
R503
10K
C51
1.0
<B>
D53
UF4005
R57 0R0 C52
2200P
<E>
R56
150K
<2W>
R52
470K
<1/8W>
1%
R53
510K
<1/8W>
x3
R54 R55
L51
D52
1SS355
D50
1SS355
D51
UDZS8.2B
-6
5
7
33
21 21
7+5
6
3 2
1
+
-
-
C306
0.1
<F>
C305
0.1
<F>
C330 1000P <B>
I C300-2
BA4560
R332
4.7K
1%
R329 47K 1% R330
4.7K
1%
I C300-1
BA4560
R331
47K 1%
D302 RB751V
R328
1.0K
C311 1000P <B>
R327
22K
D301 DAN217U
1
2
3
3
1
21
2
3
+
-
R338 1%
I C302-1 BA2903F
Q300 DTC114EUA
C339
0.01
<F>
R337
100K 1%
C87 330P <B>
15V
R311 8.66K 1%
R309 5.76K 1%
R310 143 1%
20
19
18
17 16 15 14
13 12
11
10
9 8 7 6 5
4
3
2
121
22 23
24 25
26 27
VCC COM
IN IN IN
VFO CFOD
CSC
IN
VCC VB VS
IN
VCC VB
VS IN
VCC VB VS
NU NV
NW
U V
W
P
C218
0.1
<HCP>
R211
R212 R213
R214
R215
R216
R217
<1W>
1%
x7
6
UVW
-12V
D105
DAN217U
2
R155
100K
1%
W10 W11
W5 W6
R1
ZPR0RCH400
R152
4.7K
1%
R149
4.7K
1%
3
2
3
2
4
1
2
3
1
4
2
1
3
2
3
1
3
21
+5V
15V
R803 10K <1/10W>
R802 560 <1/4W>
15V
5V
R804
1.0K
C801 0.01 <F>
D600 DAN217U
Q801 DTA143EUA
Q800 DTC143EUA
R801 1.0K
<1/4W>
C800
100/
25V
L800
BL02Rn1
C802
0.1
<F>
CR30 RE1201
JM32
JM31
C137
0.1
<F>
K1
G4A-1A
or
DW12D1
+ +
-
-
5V
18 14 10 543
21
12
3
4
5
78
SA1
RA-302M
VA1 470V
<TNR>
VA2 470V
<TNR>
W1 W2 W3
43
12
-0
W4
HY I C1
HU2001 or GK30434
R75
10K
R76
10K
R77
10K
C73
0.1
<F>
C71
0.1
<F>
C72
0.1
<F>
12V 12V
IC40
TD62064
12V
IC80
uLN2003
D80 SLR-332
<RED> R80 2.2K
12V
2
7
9
16
4
5
12
13
3
6
11
14
1
8
10
15
O1
O4 O3 O2
GND1
I1
I4 I3 I2
COM1
COM2
NC1
NC2
GND4 GND3 GND2 1.5K <1/10W> x 4
R40 R43 R42 R41
16 15
14
13 12
11
10
9
1
5 8 7
6 4 3 2
1C 7C
6C
5C
4C 3C
2C
COM
1B
7B
6B 5B 4B
3B 2B
E
L40 5mmJP
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
2
3
1
2=3
L
N
R156
100K
1%
+
C20 0.1 <F>
15V
5V
15V
5V
R162
68K
1%
I C5-2
BA2903F
C130
0.1
<F>
C129
1000P
<B>
R159
4.7K
R161
1.5K
1%
I C105-1
BA2903F
R160
68K
1%
R163 10K 1%
+
+
6 57
1
2
3
-
-
R137 10K 1% R136 10K 1%
R138 10K 1%
D109
RB751V
R140
10K
1% -
+
6 57
R134
10K
1%
R133
10K
1%
I C104-1
BA2904F
I C104-4
BA2902F
R141
10K
1%
I C104-2
BA2902F
D108
RB751V
R139
10K
1%
R146 39K 1%
I C104-3
BA2902F
-8
+
9
10
3
21
-12V R143
39K
1%
R144
22K 1%
R145
22K 1%
C124 2200P <B>
C123 2200P <B>
3
21
3
1
4
2
12V
JM30
K30
FTR-F3
or
G5NB-1A
R22 1.0K <1/10W>
C21
0.047
<B>
R23
27K
<1/10W>
R20 1.0K
<1/10W>
R21 10K <1/10W>
R157
4.7K
C138 2.2/50V
195K <RN-1/2W> 1% x 4
R147 R148
R150
R151
D111 DAN217U
D110 DAN217U
I C3-1
BA4560
R126
100K
1%
C119
0.1
<F>
15V
3
1
R154
120K
5V
R131
10
1%
R142 1.2K 1%
C117 1.0 <B>
R132
2.2K
-
-
+
+
2
31
1
2 3
+
5 67
4 1
I C3-2
BA4560
R153
120K 1% 10K 1% x 2
R127 R128
I C103-1
BA4560
R129 100K 1%
2
1
3
2
1
3
0.20 <1W> 1% x 8
Q103
DTC143EUA
Q102
DTC143EUA
DC V R200 39
<1/2W>
D200
U1JU44 x 3
D201 D202
DC V
R105 195K <RN-1/2W> 1%
F100
15A-250V
F50
3A
+
FH1
FH2
F4
BET 3.15A-250V
R104
220K
<2W>
R203 330K
C205 0.1 <F>
C204 47 / 35V
R202 330K
C203 0.1 <F>
C202 47 / 35V
++
R201 330K
C201 0.1 <F>
C200 47 / 35V
5V
L130 ELC0607RA
5V
C140 0.1 <F>
5V-2
15V
+
C139
2.2/
50V
I C103-2 BA4560
-12V
C120 0.1 <F>
R171 4.7K
33
11
22
13
10
11 +
-
I C102-4
BA2901F
I C102-2
BA2901F
-
+
7
5 6
R121
100K
1%
C113 2700P <B> C142
0.1
<F>
I C100
TA8316
C105
0.1
<F>
R124 4.7K
R125 4.7K
R120 4.7K 1%
R166 3.9K
R158 3.9K
4.7K 1% x 2
R122
R123
5V
R106 195K <RN-1/2W> 1%
15V
+C104
10/ 25V
15V-2
D102
1NH42
R103
100
<1/2W>
R102
47K
Q100
GT30J122
3
2
1
C103 0.1 <HCP>
R167 10K
C106
0.1 <F>
5V-2 D106
DAN217U R219
1.0K
R206 R209 R208
R207
R205
R204
390 <1/10W> x 6
R218 4.7K
<1/10W>
R107
3.83K
1%
3
21
+
48
9
-
+
R113 4.7K
1% R110
6.8K
C107
0.1
<F>
C108
2.2/
50V
R1
15K
1%
C136
0.01
<F>
I C102-3
BA2901F
15V
C110
0.1
<F>
C112
0.1
<F>
+C109
2.2/50V
R111
10K
1
5
7 3
2
6 4
GAT I N
SI
DI
NC GND
SO
VCC
+
7
61
-
D115
DAN217U
D114 DAN217U
5V-2
L100 BL02Rn1
R108 47
<1/4W>
R109 22
<1/4W>
4
22
23
13
2
49
24
13
P51
X0 X1
AGND
GND
GND
X500 8.00MHz <CSTS>
C500
0.1
<F>
5V
5V
C570 0.1 <F>
5V
I C570
BR93LC46
1
2
3
6
8 4
7
5
CS
SK
DI NC
VCC
DO
NC
GND
5V
R570
10K
5V
I C101
TC 74HC00AF
1
2
3 4
5
6 7
14
13 12
11
10
9
8
1
2 3
4 5
6
78
9
10
11
12 13
14
R168
22K
R169
22K
R165
22K
5V
C128 0.1 <F>
C127
2.2/
50V
+
+
R164
22K
C126 2.2/ 50V
C125
0.1
<F> D112
DAN217U
3
12
3
12
D113 DAN217U
5V
+C134
0.1 <F>
C132 2.2/ 50V
+
C133
2.2/
50V
C131
0.1
<F>
R170 68K
C580
0.1
<F>
R584 22K
R583 1.0K
R582 10K
R581 10K
+
C502 0.1 <F>
C503
0.1
<F>
C501
10/25V
IC560
S80842
2 1
3
4
VDD
OUT
NC
GND
JM101 JM102 JM103
JM100
TEST
10K x 4
R90
R91R92
R93
L50
BLm21AG610
x2
R585
1.0K
-
I C102-1
BA2901F
4
52
+
D107
RB751V
R118
10K 1%
D119
10K
1%
R116
15K
1%
R117 22K 1% C135
1000P <B>
C111
4700P
<B>
R115
22K 1%
R112 10K 1%
C141
1000P
<B>
R101
4.7K
5V-2
REACTOR
EARTH
AC208 - 230V 60Hz
SERIAL
V4-AC / I C80-3
SO / I C80-2
PR / I C80-5
TD / 4P
TA / 6 P TE / 5P ACV / 7P
DCV / 8P
I PM-CR / 9P
ACFAN / 28P
PR / 31P
V4-DC / 29P
V4-AC / 27P
SO / 32P
LED / 30P EPV3 / 44P
EPV4 / 43P EPV2 / 42P
E2CS / 41P
I PM-TRIP / 33P
SO / 32P
PR / 31P
LED / 30P
V4-DC / 29P
ACFAN / 28P
V4-AC / 27P
CP-POS / 47P
T AUX3 / 21P TTXD/60P
PFC / 58P
TEST / 59P
CT / 3P
PFCSW / 35P FANPW M / 2P FANIN/17P
FANIN/17P
EPV3 / 44P EPV4 / 43P EPV2 / 42P EPV1 / 45P
ACFAN / I C80-6 PR / I C80-5 V4-DC / I C80-4
V4-AC / I C80-3
SO / I C80-2
TE / 5P TD / 4P
TA / 6 P
FANPWM / 2P
PIPE TEMP. THERMISTOR
DISCHARGE TEMP. THERMISTOR
OUTDOOR TEMP. THERMISTOR
CN70
EXPANSION VALVE
CN40 B6B-XARK-1-A
RED
CN801 B5P6-VH-B-L WHITE
FAN MOTOR
DCV-F POW_GND
POW_GND
CN30 B2P3-VH-B-C
4-WAY VALVE
GREEN
WHITE
BLACK
SERVICE
RED
5V
L70 BL02Rn1
C40
0.1
<F>
R71
4.75K
1%
R72
6.65K
1%
R73
38.3K 1%
C75
0.1
<F>
CN71
12V
5V
R130
220
1%
C572
0.01 <F>
R560
100K
C561 0.01 <F>
R561
1.0K
1
2 3 4 5 6
7
8 9
10
PFC-TRIP / 46P PFCEN / 14P PFCAW / 35P
I PM-CR / 9P
DCV / 8P
CT / 3P
ACV / 7P
CP-POS / 47P
/ T ICS / T RES
TCK TAUX3 T MODE T RXD
T TXD
TAUX
PFCEN / 14P
PFC / 58P
ZXL / 37P
SI/48P
ZXH / 36P
TEST / 59P
MD2 / 63P
MD1/64P
MD0 / 1P
E2CS / 41P E2SK / 40P
E2D I / 39P
T MODE / 18P
MD1 / 64P
MD2 / 63P
TCK / 62P
TRXD / 61P
MD0 / 1P
/ T RES / 19P
S I / 48P
PFCEN / 14P
Z/55P
W/54P
Y / 53P
V / 52P X / 51P
U/50P
PFC-R RIP / 46P
EPV1 / 45P
E2D I / 39P
ZXL / 37P
ZXH / 36P
E2SK / 40P
T AUX / 25P
/ T RES / 19P
T CK / 62P
T AUX3 / 21P
T MODE / 18P TRXD/61P
T TXD / 60P
TAUX/25P
DCV-F
POW_GND
POW_GND
POW_GND
CN580 B10B-PASK-1
WHITE
COMP
COMP
SERVICE
C100-C102 660/450V x 3
++
JM101 JM102 JM103
JM100
TEST
+
R407
R406
R405
R403
R404
R400 R401
R402
CONTROLLER PCB ASSY
K05CM-0507HUE-C1
Model : MR18C3F
2006.02.28 9

ERROR CONTENTS
Model : MW18C3F
2006.04.07 10
Error Operation
LED Timer LED
Serial signal error Normal
2 flash
3 flash
4 flash
5 flash
Serial signal (reverse) error, at operation start up
Serial signal (reverse) error, during oeration
Serial signal (forward) error, at operation start up
Serial signal (forward) error, during operation
Indoor unit thermistor error 2 flash
2 flash
Outdoor unit thermistor error 3 flash
3 flash
2 flash
3 flash
4 flash
Indoor unit control error 4 flash
2 flash
3 flash
7 flash
4 flash
8 flash
Display
Error
Outdoor unit control error 5 flash
2 flash
3 flash
5 flash
Indoor fan motor error 6 flash
2 flash
3 flash
Abnormal lock
Abnormal rotation
CT abnormal
Outdoor unit fan drive system abnormal
2 flash
Refrigerant cycle error 7 flash
3 flash
Optional function error
Model information error
8 flash
0.1 sec on/off 0.1 sec on/off
4 flash
6 flash
Current trip error
Main relay welded
Outdoor temperature thermistor open / short
Indoor temperature thermistor open / short
Heat exchanger thermistor open
Heat exchanger middle thermistor open / short
Discharge thermistor open / short
VDD permanent stop protection
reverse VDD permanent stop protection
Forced automatic SW welded
Power interruption error
Compressor location detection error
Model information error
Discharge Temperature abnormal
Cooling high pressure abnormal rise
PFC circuit error

DISASSEMBLY ILLUSTRATION
51
2
2
1
6
7
1
4
Option
5
5
Model : MW18C3F
2006.05.12 11

32
24
29
20
43
46
48
236
37
28
26
30
52
36
40
39
33
38
27
61-1
61-2
31
Model : MW18C3F
2006.06.08 12
21

141
2
7
18
5
19
29
10
20
24
26
32
12
13
6
39
3
35
22
21
25
14
36
37
37
11
4
34
8
16
15
Model : MR18C3F
2006.04.07 13
40

When you order parts, please make a photocopy of this page
and fill the number of the parts in the "Order" column.
INDOOR UNIT
PARTS LIST
--- Indicator PCB Assy 9705039032
Evaporator B Assy 9311275022
1 Air Filter 9309997011
2 Filter (Electric + ION) 9312152018
5
4
Clamper (Grille) 9306755010
6Front Panel 9309999053
7 Intake Grille Assy 9313566036
24 Crossflow Fan Assy 9307836015
37 Insulation (Pipe)-E 9304607007
38 Holder (Evaporator)-L Assy 9313174019
39 Holder (Evaporator)-R 9309983014
40 Water Seal 9312912018
43 Terminal 9701955114
46 Step Motor 9900139025
48 Fan Motor Assy 9602109012
51 Remote Control Unit 9315027061
52 Bracket Panel 9310001004
61-1 Flow Control Panel-U 9309991033
61-2 Flow Control Panel-Z 9309992030
236 Controller PCB Assy 9707193022
--- Pipe Temperature Thermistor 9702039042
---
---
Room Temperature Thermistor 9700801108
Holder (Filter) 9306602017
20 Gear-A 9309994003
21 Casing Assy 9311354079
26 Clamp (Motor) 9313724016
27 Shaft Holder-C Assy 9306628017
28 Drain Hose Assy 9314147012
29 Drain Cap Assy 9314493010
30 Wire Clamper 9313944018
32 Cover (Switch) 9313943011
33 Evaporator Total Assy 9313099015
36 Joint Pipe Assy 9313792015
(K04CP-0504WSE-C1)
Ref.
No. Description
Part No.
MW18C3F
Ord.
Q'ty
2006.06.08 14
31 Holder (Room Thermistor) 9311948018

When you order parts, please make a photocopy of this page
and fill the number of the parts in the "Order" column.
OUTDOOR UNIT
1 Top Panel Assy 9309230057
2 Top Panel Seal 9309228016
3 Cabinet Sub Assy 9314809040
4 Blow Down Grille 9308884015
5 Cabinet Right Assy 9309236011
6 Fan Ring 9308885012
7 Grip 9308880017
8 Switch Cover Assy 9309237049
10 4-Way Valve 9970056017
11 Expansion Valve Assy 9311641018
12 Strainer 9311440017
13 Condenser Assy 9311382027
14 Thermistor Spring-A 313728262708
15 Thermistor Spring-A 9300089012
16 Propeller Fan 9309909014
18 Motor Bracket 9308872012
19 Separator 9312971015
20 Base Assy 9308869081
21 3-Way Valve Assy 9315159014
22 2-Way Valve Assy 9313064013
24 Cord Clamp 9307271014
25 Terminal 9703874024
26 Inverter PCB Assy 9707039085
29 Fuse 0600382018
32 Expansion Valve Coil 9900057039
34 Fan Motor 9602133017
35 Compressor Assy 9313764012
36 Emblem Rear 9312661015
37
Thermistor Assy
(Heat Exchanger & Discharge Pipe)
9900148027
Thermistor
39 Solenoid Coil 9970033025
---
41 Intelligent Power Module 9705720015
---
Outdoor Temp. Thermistor 9900210045
9900041014
Ref.
No. Description Part No.
MR18C3F
Ord.
Q'ty
2006.08.22 15
40 Protective Net 9315319012

9305642045
Remote control
unit holder
Name and Shape
Part No.
MW18C3F
9310001004
9315027061
0600185534
0700076046
9310519004
9312153015
9311925033
Remote control
unit
Battery (penlight)
Cloth tape
Tapping screw (big)
Wall hook bracket
STANDARD
ACCESSORIES
9306602017
9304536000
Tapping screw (small)
( 3 x 12)
( 4 x 25)
0700019036
Air cleaning filter
Air cleaning filter
Seal A
frame
2006.03.06 16

0511G2949