Friedrich Metal Products MR09Y3G Service Manual
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED TYPE
C ONTE N T S
SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . .
1
DIMENSIONS
. . . . . . . . . . . . . . . . . . . . . . . .
2
REFRIGERANT SYSTEM DIAGRAM
. . . .
3
CIRCUIT DIAGRAM
. . . . . . . . . . . . . . . . . . .
4
ERROR DETECTION
. . . . . . . . . . . . . . . . .
5INDOOR PCB CIRCUIT DIAGRAM
. . . . . .
8OUTDOOR PCB CIRCUIT DIAGRAM
. . .
10
PARTS (Indoor unit)
. . . . . . . . . . . . . . . . . .
11
PARTS (Outdoor unit)
. . . . . . . . . . . . . . . . .
15
19
ACCESSORIES
. . . . . . . . . . . . . . . . . . . . .
Indoor unit Outdoor unit
MW09Y3G
MW12Y3G
MR09Y3G
MR12Y3G
M09YG. M12YG. Svc. Parts (07.2009)
S P E C I F I C A T I O N S
ELECTRICAL DATA
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
POWER SOURCE
FREQUENCY
RUNNING
CURRENT
INPUT WATTS
E.E.R. Cooling
COP Heating
MOISTURE REMOVAL
AIR
CIRCULATION
HIGH
MAXIMUM
CURRENT
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cooling
Heating
Cool & heat inverter
MW09Y3G
MR09Y3G
8,500 BTU/h
2.50 kW
10,000 BTU/h
2.93 kW
208 / 230 V
60 Hz
3.3 A
3.7 A
0.690 kW
0.770 kW
12.32 BTU/Wh
3.62 kW/kW
12.99 BTU/Wh
3.81 kW/kW
1.3 L/h
750 m3/h
750 m3/h
6.0 A
7.5 A
MW12Y3G
MR12Y3G
11,500 BTU/h
3.40 kW
14,000BTU/h
4.11 kW
208 / 230 V
60 Hz
4.4 A
5.3 A
0.950 kW
1.160 kW
12.10 BTU/Wh
3.58 kW/kW
12.06 BTU/Wh
3.54 kW/kW
1.8 L/h
750 m3/h
750 m3/h
6.5 A
9.0 A
NOISE LEVEL
High speed
INDOOR
UNIT
Cooling
INDOOR
UNIT
Heating
OUTDOOR UNIT Cooling
OUTDOOR UNIT Heating
Middle speed
Low speed
Quiet
High speed
Middle speed
Low speed
Quiet
DIMENSIONS
INDOOR UNIT H x W x D
OUTDOOR UNIT
H x W x D
WEIGHT
INDOOR UNIT Gross / Net
OUTDOOR UNIT
Gross / Net
43 dB
38 dB
33 dB
22 dB
43 dB
38 dB
33 dB
22 dB
46 dB 49 dB
46 dB
10-1/4 x 31-3/32 x 7-25/32 inch
(260 x 790 x 198 mm)
21-1/4 x 25-31/32 x 11-13/32 inch
(540 x 660 x 290 mm)
21 lb / 16.5 lb
(9.5 kg / 7.5 kg)
62 lb / 55 lb
(28 kg / 25 kg)
43 dB
38 dB
33 dB
22 dB
43 dB
38 dB
33 dB
22 dB
49 dB
75 lb / 68 lb
(34 kg / 31 kg)
FAN MOTOR
POWER SOURCE
INDOOR
UNIT
Cooling
INDOOR
UNIT
Heating
OUTDOOR UNIT Cooling
OUTDOOR UNIT Heating
High speed
Middle speed
Low speed
Quiet
High speed
Middle speed
Low speed
Quiet
230 V 230 V
1,440 r.p.m.
1,200 r.p.m.
920 r.p.m.
680 r.p.m.
1,440 r.p.m.
1,200 r.p.m.
980 r.p.m.
700 r.p.m.
730 r.p.m.
650 r.p.m.
1,440 r.p.m.
1,200 r.p.m.
1,440 r.p.m.
1,200 r.p.m.
920 r.p.m.
680 r.p.m.
980 r.p.m.
700 r.p.m.
860 r.p.m.
760 r.p.m.
COMPRESSOR AND REFRIGERANT
Hermetic type,
COMPRESSOR TYPE
DISCRIMINATION
WEIGHT (with oil)
PRECHARGED REFRIGERANT
REFRIGERANT TYPE
Pipe length
FULL CHARGE
ADDITIONAL REFRIGERANT
MAXIMUM PIPING HEIGHT 15m
15 m
20 m
4 pole, 3 phase,
DC inverter motor, Rotary
5SS072XAA
650 g
650 g
750 g
20 g/m
DA89X1C-20FZ2
9.2 kg5.9 kg
800 g
R410AR410A
800 g
900 g
2009.03.10 1
D I M E N S I O N S
unit : inch (mm)
INDOOR UNIT
10-1/4 (260)
Refrigerant pipe length
Liquid : mm
Gas : mm
7-25/32 (198)31-3/32 (790)
Drain hose length : mm
Drain pipe diameter
Inside : mm
Outside : mm
OUTDOOR UNIT
11-13/32 (290)
25-31/32 (660)
21-1/4 (540)
2009.03.10 2
18 (454)
R E F R I G E R A N T
S Y S T E M D I A G R A M
Heat exchanger
(indoor unit)
Compressor
Refrigerant direction
3-Way valve
Muffler
4-Way valve
Heat exchanger
(outdoor unit)
2-Way valve
Strainer
Expansion valve
Strainer
Cooling
Heating
Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 3/8" (9.52 mm)
2009.01.26 3
RED
BLACK
WHITE
YELLOW
BROWN
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
RED
WHITE
BLACK
BLACK
BLACK
WHITE
RED
WHITE
RED
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
RED
WHITE
WHITE
BLACK
GREEN
BLACK
BLACK
BLACK
121
2
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
2
3
4
1
2
3
1
2
3
W10
W11
W7
W8
W9
CN800
CN40
CN501
CN62
W4
W2
W1
W3
CN61
COMPRESSOR
MR09Y3G
FM
FAN MOTOR
EXPANSION
VALVE
4-WAY VALVE
G
1 2
(N)
3 L1
L2
TERMINAL
POWER SOURCE
REACTOR
or
PIPE THERMISTOR
DISCHARGE THERMISTOR
OUTDOOR THERMISTOR
FUSE
250V
5A
FUSE
250V
20A
PMV
4WV
CONTROLLER PCB ASSY
RED
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
BLUE
YELLOW
WHITE
BLACK
RED
BLACK
BLACK
BLACK
BLACK
BLUE
PINK
YELLOW
ORANGE
RED
GREEN
RED
WHITE
BLACK
CN1
1 2 3 4 5
1
2 3 4 5
1 2 3 4 5 6 7
8
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
1
2
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
1
2
3
4
1
2
3
4
CN8
CN3
CN201
CN5CN4
CN7
CN6
CN2
W4
G
EARTH
TERMINAL
TERMINAL
1 2 3
TEST
M
PIPE THERMISTOR
ROOM THERMISTOR
STEP MOTOR
( LOUVER )
F M
FAN MOTOR
INDICATOR
PCB ASSY
CONTROLLER
PCB ASSY
THERMAL
FUSE 102
R(R)U
S(S)V
C(T)W
CM
S
R
C
CM
RED
WHITE
BLACK
COMPRESSOR
MR12Y3G
2009.02.23 4
INDOOR UNIT
OUTDOOR UNIT
C IRC U IT D I AGR A M
RED
or
BLUE
ORANGE
YELLOW
WHITE
EXPANSION
VALVE
PMV
BLACK
BLACK
BLACK
BLACK
RED
ORANGE
YELLOW
PINK
BLUE
RED
BLACK
WHITE
YELLOW
BLUE
6
5
4
3
2
1
1
2
3
4
5
6
7
1
2
3
4
5
1
2
3
4
5
1
2
3
4
1 2
3 4
5
2
1
1
2
3
4
5
6
7
RED
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
CN7
B5 ( 6-5 )B-XARK
CN6
B5B-PH-K-S
CN3
1971032-7
CN5
1971032-5
CN4
1971032-4
W4
CN1
2013485-1
CN2
1871843-2
CN201
JB20-07
LOUVER ( UP / DOWN )
PIPE THERMISTOR
ROOM THERMISTOR
EARTH TERMINAL
TERMINAL BOARD
DC FAN MOTOR
TEST
N
L
3
OUTDOOR UNIT
M
F M
CONTROLLER PCB ASSEMBLY
MW09Y3G : K07AN-080YHSE-C1
INDICATOR PCB ASSEMBLY
K07BJ-0700HSD-D0
THERMAL
FUSE 102
BLACK
WHITE
RED
GREEN
CONTROL UNIT
MW09Y3G : EZ-00819HSE
2009.03.10 5
I N D O O R P C B C I R C U I T D I A G R A M
6
5
4
3
2
1
CN8
SJH20-06WSB
8
7
MW12Y3G : EZ-0081AHSE
MW12Y3G : K07AN-0810HSE-C1
EMI FILTER
P32 P70 P71 P72 P73
P74 P75
P33
P63 P62 P61 P60
VDD
VSS
C
X1
X2
MD0
123
P
124
P
120
P
140P130
P
AV
DD
AV
SS
RST
P40
P41
P00
P01
P20
P21
P22
P23P24P25
P26P27
P10
P11
P12
P13
P14
P15
P16
P17
P30
P31
12
11 10 9 876 5 432
1
25
26 27 28 293031 32 333435
36
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
5V
C24
1.0
<F>
C17
1.0
<F>
X1
8.00MHz
<FCR8.0MC5T>
5V
R48
0R0
5V
5V
C41
0.1
<F>
R46
1.0K
<1/10W>
R45
10K
<1/10W>
C50
1000P
<R>
15V
R37
47
<1/10W>
R25
10K
<1/10W>
1%
C25
1000P
<R>
R36
10K
<1/10W>
15V
340V
5V
R20
1.0K
<1/10W>
R21
10K
<1/10W>
C23
1000P
<R>
5V
15V
R29, R28, R27
270 <1/10W> x 3
15V
I C8
TNY274PN
C12
0.1
<F>
D7
1SS355
15V
5V
L2
BLm18
<BD102>
T1
MY082G
D3
D1FL20U
C10
220/
25V
+
C9
330/
25V
+
D4
D1FL20U
R8
1.0K
<1/10W>
Q5
2SC4081
<R>
R11
27K
<1/10W>
R10
10K
<1/10W>
1%
R9
10K
<1/10W>
1%
C11
0.1
<F>
I C6
TL431
C
A
REF
3
2
1
Q6
2SA1576A
<R>
R6
150
<1/10W>
R7
1.0K
<1/10W>
5
6
7
8 S
S
S
S
4
2
1
D
BP-M
EN-UV
1
3
2
5
3
2
4
10
9
8
7
6
A
D2
UF4007
R3
100K
<1/2W>
340V
C5
0.01
<ECQE>
R2
100
<1/4W>
C28
0.1
<F>
C31
0.1
<F>
15V
R38
1.0K
<1/10W>
R39
10K
<1/10W>
1%
R40
1.0K
<1/10W>
R41
49.9K
<1/10W>
1%
5V
L4
0R0
L6
0R0
L3
0R0
R43
10K
<1/10W>
BZ1
PS1240P02BT
B Z
I C13-7
uLN2003ADR
10
7
A
5V
C19
1.0
<F>
A
R44
10K
<1/10W>
I C12
S-93C56B
5V
C36
0.1
<F>
5V
R55
10K
<1/10W>
A
8
4
6
5
7
3
2
1VCC
DO
TEST
GND NC
D I
SK
CS
11 6
I C13-6
uLN2003ADR
R35
33
<1/2W>
15V
C29
1000P
<E>
R12
1.0K
<1/2W>
5V
JM2
0R0
5V
R15
1.0K
<1/10W>
C21
0.01
<B>
A
A
A
A
R14
1.0K
<1/10W>
R13
10K
<1/10W>
Q1
RT1N241M
C20
0.01
<B>
I C13-1
uLN2003ADR
3
1
2
16 1
W4
18 14 10 5
4 3 2
1
A
10
5
4 3
2 1
14
18
231
4
+
D5
S1NBC60
-
+
C4
68/
420V
9
8
A
I C 1 3
uLN2003ADR
A
I C13-2 uLN2003ADR
I C13-3 uLN2003ADR
I C13-4 uLN2003ADR
I C13-5 uLN2003ADR
12
13
14
5
4
3
152
R31 - R34
47 <1/10W> x 4
A
MODE
A
RESET
1
3
2
A
I C 1
uPD78F0514AGA
15V CUT
A
A
AAA
A
+
C6
10/
25V
R26
8.2K
<1/10W>
1%
Q3
DTA124EUA
Q2
DTC124EUA
2
3
1
2
3
1
A
340V
5V
A
R22
10K
<1/10W>
R30
100K
<1/10W>
R19
10K
<1/10W>
R23, R42
1.0K <1/10W> x 2
A
A
C15
0.1
<F>
C14
1000P
<R>
W-I N
W-OUT
MODE
5V
5V
R49, R51
10K <1/10W> x 2
A
A
R1
0R0
FH1
FH2
F1
F I H
250V - 3.15A ( EM )
VA1
470V
<ERZV>
C1
0.1
<LE>
C3
0.01
<F>
C2
0.01
<F>
L5
20*20*18
0.6A - 10mH
4
3
1 2
H I C 2
G K - L V 3 0 1 1 E 4
L1
SS11V-06180
A
A
W-I N
W-OUT
A
A
A
A
1
2
3
4
5
6
7
1
2
3
4
5
5
4
3
2
1
1
2
3
4
5
1
2
1
3
5
4
3
2
1
8
7
6
5
4
3
2
1
CN6
B5B-PH-K-S
TEST
CN2
1871843-2
TO TERMINAL BOARD
CN1
2013485-1
TO TERMINAL BOARD
BLACK
WHITE
RED
TIMER SHORT SCK
DO
D I
CN4
1971032-4
CN8
SJH20-08WSB
CN7
B5 ( 6-5 ) B-XARK-1
CN3
1971032-7
TO INDICATOR PCB ASSY
CN5
1971032-5
2009.01.21 6
INDOOR UNIT
CONTROLLER PCB ASSEMBLY
MW09Y3G : K07AN-080YHSE-C1
MW12Y3G : K07AN-0810HSE-C1
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