Friedrich MR24C3F User Manual

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  
8
Models :  
MR24C3F  
MR24Y3F  
CONTROLLER PCB ASSY  
K05CU-0507HUE-C1  
C64  
10K  
<1/10W>  
C64  
10K  
<1/10W>  
2006.02.23  
9
Models :  
MR24C3F  
MR24Y3F  
2006.02.23  
10  
Models :  
MR24C3F  
MR24Y3F  
TR PCB ASSY ( I P M )  
K05CZ-0500HUE-TR0  
2006.02.23  
11  
Models :  
MR24C3F  
MR24Y3F  
CAPACITOR PCB ASSY  
K05DG-0500HUE-P0  
YELLOW  
SMOOTHING CIRCUIT  
B
W12  
WHITE  
P
W7  
YELLOW  
B
B
R200  
220K  
<2W>  
C202  
660/  
450V  
C200 C201  
+
660/ 660/  
450V 450V  
+
+
BLUE  
B
N
W13  
VIOLET  
W8  
BLUE  
B
B
POWER_G  
2006.02.23  
12  
ERROR CONTENTS  
Display  
Error  
Error  
Operation  
LED  
Timer LED  
2 flash  
3 flash  
4 flash  
5 flash  
8 flash  
2 flash  
3 flash  
2 flash  
3 flash  
4 flash  
8 flash  
2 flash  
3 flash  
4 flash  
7 flash  
8 flash  
2 flash  
3 flash  
5 flash  
6 flash  
2 flash  
3 flash  
2 flash  
3 flash  
5 flash  
2 flash  
3 flash  
4 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  
Serial signal error  
Normal  
Wired remote controller error  
Indoor temperature thermistor open / short  
Heat exchanger middle thermistor open / short  
Indoor unit thermistor error  
2 flash  
Discharge thermistor open / short  
Heat exchanger thermistor open  
Outdoor unit thermistor error 3 flash  
Outdoor temperature thermistor open / short  
Compressor temperature thermistor open / short  
Forced automatic SW welded  
Main relay welded  
Indoor unit control error  
4 flash  
Power interruption error  
VDD permanent stop protection  
reverse VDD permanent stop protection  
Current trip error  
CT abnormal  
5 flash  
Outdoor unit control error  
Compressor location detection error  
Outdoor unit fan drive system abnormal  
Abnormal lock  
Indoor fan motor error  
Refrigerant cycle error  
6 flash  
7 flash  
Abnormal rotation  
Discharge Temperature abnormal  
Cooling high pressure abnormal rise  
Pressure switch trouble  
Active filter voltage trouble (second time)  
Active filter voltage trouble (first time)  
PFC circuit error  
Optional function error  
Model error  
8 flash  
Blinking  
Blinking Model error  
13  
2006.01.20  
DISASSEMBLY ILLUSTRATION  
Models : MW24C3F, MW24Y3F  
5
5
4
1
6
4
2
2
2006.02.23  
14  
32  
34  
36  
33  
35  
28  
31  
27  
29  
9
30  
8
26  
23  
22  
10  
Models : MW24C3F, MW24Y3F  
37  
38  
39  
53  
41  
42  
55  
16  
49  
48  
40  
52  
47  
17  
2006.02.23  
Models : MR24C3F, MR24Y3F  
2006.03.14  
18  
Models : MR24C3F, MR24Y3F  
44  
40  
43  
46  
45  
41  
42  
25  
55  
2006.03.14  
19  
PARTS LIST  
INDOOR UNIT  
㪧㪸㫉㫋㩷㪥㫆  
MW24C3F  
㪩㪼㪽㩷㪥㫆  
㪛㪼㫊㪺㫉㫀㫇㫉㫀㫆㫅  
㪦㫉㪻㪅㩷㪨㩾㫋㫐  
MW24Y3F  
1
2
Front Panel Total Assy  
Intake Grille Assy  
Air Filter  
9315335081  
9315336064  
9315014016  
9306755010  
9315010018  
9315024015  
9306628017  
9315331014  
9315335074  
9315336064  
9315014016  
9306755010  
9315010018  
9315024015  
9306628017  
9315331014  
4
5
Clamper Grille  
6
Receiver Window  
Crossflow Fan Assy  
Bearing C Assy  
Casing Assy  
8
9
10  
22  
23  
26  
27  
28  
29  
30  
31  
R and L Louver  
Spacer B  
9311997016  
9312441013  
9367677009  
9315347015  
9315349019  
9315354013  
9315350015  
9315251015  
9311997016  
9312441013  
9367677009  
9315347015  
9315349019  
9315354013  
9315350015  
9315251015  
Drain Cap  
Evaporator Assy  
Evaporator Assy B  
Connection Pipe Assy  
Distributor Assy  
Water Seal  
32  
33  
34  
35  
36  
37  
38  
39  
Evaporater Holder R  
Evaporater Holder L  
Rear Bracket  
9314994012  
9314995019  
9315022011  
9315013019  
9315411013  
9707090086  
9314996023  
9314997020  
9314994012  
9314995019  
9315022011  
9315013019  
9315411013  
9707090079  
9314996023  
9314997020  
Filter Guide  
Filter Guard  
Controller PCB Assy  
Control Box  
Control Cover  
40  
41  
42  
46  
47  
48  
52  
53  
Motor Case  
Terminal Earth  
DC Brushless Motor  
Motor, Step  
Motor, Step  
Motor, Step  
Gear A  
9314998027  
9315028013  
9602163014  
9900384029  
9900384036  
9900139063  
9309994003  
9900385019  
9314998027  
9315028013  
9602163014  
9900384029  
9900384036  
9900139063  
9309994003  
9900385019  
Terminal  
55  
-
Display PCB Assy  
Remote Controller  
9707210019  
9315027160  
9707210019  
9315027153  
2006.02.23  
20  
OUTDOOR UNIT  
Parts No.  
Description  
Ref No.  
MR24C3F  
MR24Y3F  
1
2
3
4
5
6
7
8
Top Panel Assy  
Seal (Top)  
9309230057  
9309228016  
9314809019  
9308884015  
9309236028  
9308885012  
9308880017  
9309237049  
9309230057  
9309228016  
9314809019  
9308884015  
9309236028  
9308885012  
9308880017  
9309237049  
Cabinet Sub Assy  
Blow Grill  
Cabinet Right Assy  
Fan Ring  
Grip  
Switch Cover Assy  
10  
11  
12  
13  
14  
16  
18  
20  
4-Way Valve  
9900163013  
9900056018  
9315303011  
9315302014  
313728262708  
9309909014  
9313432027  
9315296023  
9900163013  
9900056018  
9315303011  
9315302014  
313728262708  
9309909014  
9313432027  
9315296023  
Pulse Motor Valve  
Condenser Assy B  
Condenser Assy  
Thermistor Spring A  
Propeller Fan  
Motor Bracket Assy  
Base Assy  
21  
22  
24  
25  
32  
3-Way Valve Assy  
2-Way Valve Assy  
Cord Clamp  
9315414014  
9313062019  
9307271014  
9703874024  
9900057039  
9315414014  
9313062019  
9307271014  
9703874024  
9900057039  
Terminal, 5 Pin  
Expansion Valve Coil  
33  
34  
35  
Outdoor Temp. Thermistor  
DC Brushless Motor  
Compressor Assy  
9703516108  
9602110018  
9315297013  
9703516108  
9602110018  
9315297013  
36  
37  
38  
39  
40  
Emblem Rear  
9312661015  
9704220059  
9704219091  
9970055010  
9707121124  
9312661015  
9704220059  
9704219091  
9970055010  
9707121124  
Heat Exchanger Thermistor  
Discharge Thermistor  
Solenoid  
Inverter PCB Assy  
41  
42  
43  
Power PCB Assy  
Power PCB Assy  
TR PCB Assy  
9707128055  
9707129052  
9707125054  
9707128055  
9707129052  
9707125054  
44  
45  
46  
ACTPM  
Fuse Holder  
Fuse  
9703457012  
0500158072  
0600086039  
9703457012  
0500158072  
0600086039  
50  
51  
52  
53  
Pulse Motor Valve Assy  
JNT PIPE(3WV)AS  
PIPE(COND OLT)AS  
PIPE(COND ILT)AS  
9315310019  
9315308016  
9315304018  
9315305015  
9315310019  
9315308016  
9315304018  
9315305015  
54  
55  
Discharge Pipe Assy  
Chock Coil  
9315312013  
9900366018  
9315312013  
9900366018  
2006.03.14  
21  
STANDARD  
ACCESSORIES  
Name and Shape  
Part No.  
Wall hook bracket  
9315023018  
Remote control unit  
9315027160  
(for cooling only)  
9315027153  
(for heat and cool)  
Remote control  
unit holder  
9305642045  
0600185534  
Battery (penlight)  
Cloth tape  
9310519004  
0700076046  
0700019036  
Tapping screw (big)  
Tapping screw (small)  
Drain pipe  
9301102000  
(for heat and cool)  
22  
2006.02.23  
0602G3029  

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