Friedrich Mw18y3fm, Mw12y3fm, Mw09y3fm, Mr36tqy3f Service Manual
INVERTER MULTI
AIR CONDITIONER
WALL MOUNTED type
Models
Indoor unit Outdoor unit
MW09Y3FM
MR36TQY3F
MW12Y3FM
MW18Y3FM
CONTENTS
SPECIFICATIONS ..................... 1
OUTLINE AND DIMENSIONS ........... 3
REFRIGERANT SYSTEM DIAGRAM ..... 5
CIRCUIT DIAGRAM ................... 6
INDOOR PCB CIRCUIT DIAGRAM ...... 9
OUTDOOR PCB CIRCUIT DIAGRAM .... 12
ERROR CONTENTS .................. 15
DISASSEMBLY ILLUSTRATION ......... 17
PARTS LIST ......................... 23
STANDARD ACCESSORIES ............ 25
SPECIFICATIONS (INDOOR UNIT)
ELECTRICAL DATA
TYPE
MODEL NAME
POWER SOURCE
COOLING CAP ACITY
( Rated / Max )
HEATING CAP ACITY
( Rated / Max )
MOISTURE REMOVAL
AIR CIRCULA TION-
Power source of specification : 230V
High
FAN MOTOR
DISCRIMINATION
High
COOLING & HEATING
MW12Y3FM MW18Y3FMMW09Y3FM
1 - 230 / (208) V 60Hz
2.7 kW / 3.3 kW
9,500 / 11,300 BTU/h
3.2 kW / 3.8 kW
11,000 / 13,000 BTU/h
1.7 Pts/hr (0.8 L/hr) 2.0 Pts/hr (1.1 L/hr)
1,200 / 1,200 r.p.m. 1,380 / 1,380 r.p.m.
3.5 kW / 4.0 kW
12,000 / 13,600 BTU/h
4.1 kW / 4.5 kW
14,000 / 15,400 BTU/h
377 cfm (640 m
MFD-34ROM
3
/hr)
5.2 kW / 5.55 kW
17,800 / 19,000 BTU/h
6.0 kW / 6.7 kW
20,500 / 23,000 BTU/h
4.9 Pts/hr (2.3 L/hr)
388 cfm (660 m
1,480 / 1,480 r.p.m.
3
/hr)324 cfm (550 m3/hr)
FAN SPEED
( Cool / Heat )
NOISE LEVEL
NOISE LEVEL
( Cool / Heat )
PIPING
MAXIMUM LENGTH
MAXIMUM HEIGHT
DIAMETER SIZE
Middle
Low
Quiet
High
Middle
Low
Quiet
Liquid
Gas
1,070 / 1,070 r.p.m. 1,230 / 1,230 r.p.m.
900 / 970 r.p.m. 1,050 / 1,110 r.p.m.
800 / 850 r.p.m. 900 / 960 r.p.m.
38 dB / 38 dB
34 dB / 34 dB
28 dB / 30 dB
25 dB / 26 dB
3/8 inch (9.52 mm) 1/2 inch (12.7 mm)
43 dB / 43 dB
40 dB / 40 dB
33 dB / 34 dB
28 dB / 30 dB
82 ft. (25 m)
49 ft. (15 m)
1/4 inch (6.35 mm)
1,380 / 1,380 r.p.m.
1,200 / 1,200 r.p.m.
1,060 / 1,060 r.p.m.
45 dB / 45 dB
43 dB / 43 dB
39 dB / 39 dB
34 dB / 34 dB
MEASUREMENTS
DIMENSIONS
WEIGHT
2006.05.12
HxWxD
Net / Gross
10-13/16 x 31-1/8 x 8-7/16 inch
(275 x 790 x 215 mm)
18 lbs. / 23 lbs.
(8.5 kg / 10.5 kg)
1
SPECIFICATIONS
(OUTDOOR UNIT)
ELECTRICAL DATA
TYPE
MODEL NAME
POWER SUPPLY
FREQUENCY
AIR CIRCULATION - High
NOISE LEVEL
COMPRESSOR
TYPE
DISCRIMINATION
REFRIGERANT
FAN MOTOR
4 room multi inverter
MR36TQY3F
230 / 208 V
60 Hz
Cooling
Heating
Cooling
Heating
R410A 7 lb 7/8 oz (3,200 g)
2119 cfm (3,600 m
2237 cfm (3,800 m
51 dB
53 dB
Hermetic type, Inverter, 4 poles,
3-phase, DC motor, Twin Rotary
TNB220FPBM9
3
/hr)
3
/hr)
DISCRIMINATION
Cooling
HIGH-SPEED
Heating
REFRIGERANT CHARGE (R410A)
Total Pipe Length
ADDITIONAL
CHARGE
ADDITIONAL CHARGE
CHARGELESS
MAX PIPE LENGTH (each unit)
MAX PIPE LENGTH (total)
MAX ELEVATION (between indoor units)
MAX ELEVATION (between indoor and outdoor units)
MIN. PIPE LENGTH (each unit)
164 ft (50.0 m)
197 ft (60.0 m)
230 ft (70.0 m)
MFE-45ROM
850 r.p.m.
900 r.p.m.
-- (Chargeless)
8-13/16 oz (250 g)
1 lb 1-5/8 oz (500 g)
9/32 oz/ft (25 g/m)
164 ft (50 m)
82 ft (25 m)
229 ft (70 m)
49 ft (15 m)
49 ft (15 m)
16 ft (5 m)
2006.04.25
MEASUREMENT
DIMENSIONS
WEIGHT
HxWxD
Net / Gross
32-7/8 x 35-7/16 x 13 inch
(835 x 900 x 330 mm)
149 lb / 167 lb (68 kg / 76 kg)
2
SPECIFICATIONS (COMBINATION)
ELECTRICAL DATA ( 230 V )
COMBINATION
COOLING CAPACITY
HEATING CAPACITY
INPUT POWER (Cooling)
INPUT POWER (Heating)
CURRENT (Cooling)
Rated
Max
Rated
Max
Rated
Max
Rated
Max
Rated
Max
MW09Y3FM x 3
8.1 kW
27,600 BTU/h
9.7 kW
33,000 BTU/h
9.7 kW
33,000 BTU/h
11.8 kW
40,200 BTU/h
2.75 kW
3.74 kW
2.96 kW
3.80 kW
12.0 A
16.4 A
MW12Y3FM +
MW09Y3FM x 2
8.9 kW
30,400 BTU/h
9.9 kW
33,900 BTU/h
10.4 kW
35,500 BTU/h
11.7 kW
40,000 BTU/h
3.30 kW
4.10 kW
3.10 kW
4.10 kW
14.4 A
18.0 A
MW12Y3FM x 2
+ MW09Y3FM
9.7 kW
33,000 BTU/h
10.1 kW
34,600 BTU/h
10.8 kW
37,000 BTU/h
12.0 kW
41,000 BTU/h
3.75 kW
4.10 kW
3.30 kW
4.10 kW
16.4 A
18.0 A
Rated
CURRENT (Heating)
Max
ELECTRICAL DATA ( 230 V )
COMBINATION
Rated
COOLING CAPACITY
Max
Rated
HEATING CAPACITY
Max
Rated
INPUT POWER (Cooling)
Max
13.0 A
16.6 A
MW12Y3FM x 3
10.3 kW
35,100 BTU/h
10.5 kW
35,700 BTU/h
10.9 kW
37,200 BTU/h
12.5 kW
42,600 BTU/h
4.00 kW
4.10 kW
13.5 A
18.0 A
MW18Y3FM +
MW09Y3FM x 2
10.3 kW
35,200 BTU/h
10.5 kW
36,000 BTU/h
10.9 kW
37,200 BTU/h
12.3 kW
42,000 BTU/h
4.00 kW
4.10 kW
14.5 A
18.0 A
MW09Y3FM x 4
10.3 kW
35,200 BTU/h
10.5 kW
36,000 BTU/h
10.7 kW
36,500 BTU/h
12.3 kW
42,000 BTU/h
4.00 kW
4.10 kW
2006.04.25
INPUT POWER (Heating)
CURRENT (Cooling)
CURRENT (Heating)
Rated
Max
Rated
Max
Rated
Max
3.30 kW
3.80 kW
17.5 A
18.0 A
14.5 A
16.6 A
3
3.30 kW
3.80 kW
17.5 A
18.0 A
14.5 A
16.6 A
3.00 kW
3.70 kW
17.5 A
18.0 A
13.1 A
16.2 A
OUTLINE AND DIMENSIONS
INDOOR UNIT
Models :
MW09Y3FM
MW12Y3FM
MW18Y3FM
Unit : inch (mm)
31-1/8 (790)
8-7/16
(215)
10-13/16 (275)
2006.03.25
4
OUTDOOR UNIT
Model : MR36TQY3F
Unit : inch (mm)
32-7/8 (830)
13/16 (21)
35-7/16 (900)
(9)
11/32
25-19/32 (650)
1-9/16
(40)
1-7/32
(31)
13 (330)
15-3/4
(400)
15/32
(12)
2006.04.25
Air Flow
14-9/16 (370)
5
REFRIGERANT SYSTEM DIAGRAM
Outdoor unit
THERMISTOR (DIS.TEMP)
COMPRESSOR
THERMIS
-TOR
PIPE
(A-3WV)
OIL BACK
CAPILLARY
PRESSURE SWITCH(A)
PRESSURE SWITCH(B)
ACCUMULATOR
EXPANSION
VALVE
THERMISTOR
PIPE (A-2WV)
OIL SEPARATOR
THERMIS
-TOR
PIPE
(B-3WV)
4-WAY VALVE HEAT COOL
EXPANSION
VALVE
THERMISTOR
PIPE (B-2WV)
THERMIS
-TOR
PIPE
(C-3WV)
HEAT EXCHANGER
RECEIVER TANK
HEAT EXCHANGER
EXPANSION
VALVE
THERMISTOR
PIPE (C-2WV)
THERMIS
-TOR
PIPE
(D-3WV)
CAPILLARY
TUBE
STRAINER
DISTRIBUTOR
EXPANSION
VALVE
THERMISTOR
PIPE (D-2WV)
2006.04.25
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
STRAINER
3-WAY
VALVE
2-WAY
VALVE
THERMISTOR
HEAT EXCHANGER
Indoor unit A Indoor unit B Indoor unit C Indoor unit D
6
CIRCUIT DIAGRAM
INDOOR UNIT
Models :
MW09Y3FM
MW12Y3FM
MW18Y3FM
CN201
RED
1
WHITE
2
WHITE
3
WHITE
4
WHITE
5
WHITE
6
WHITE
7
INDICATOR PCB
BLUE
YELLOW
WHITE
FAN MOTOR
FM
BLACK
RED
1
1
2
2
3
3
4
4
CN3
5
5
6
6
7
7
1
1
2
2
3
3
4
4
5
5
6
6
CONTROLLER PCB
CN1
1
2
3
4
CN10
5
1
2
3
CN2
4
5
1
2
RED
1
ORANGE
2
YELLOW
3
PINK
4
BLUE
5
BLACK
BLACK
1
1
2
2
M
3
3
4
4
5
5
STEP MOTOR
PIPE TEMPERATURE
THERMISTOR
TERMINAL
GRAY
GRAY
THERMAL
FUSE 102 C
3
2
1
BLACK
1
BLACK
2
SW
POWER CIRCUIT
3
2
CN7
1
VARISTOR
CN5 CN6
ROOM TEMPERATURE
THERMISTOR
FUSE
3.15A
W1
WHITE
1
W2
BLACK
2
3
W3
RED
W4
GREEN
G
YELLOW
GREEN /
2006.04.25
7
OUTDOOR UNIT
Model : MR36TQY3F
4-WAY VALVE
4WV
CONSTRUCTION
CHECK SWITCH
DC COMPRESSOR
W
UV
RED
U
W305VW304
IPM
TERMINAL
BLACK
BLACK
CHOKE COIL
TERMINAL
WHITE
BLACK
W
W303
DIODE
BRIDGE
WHITE
BROWN
WHITE
23
1
UNIT A UNIT DUNIT CUNIT B
EARTH
DC FAN MOTOR
FM
HEAT SINK
THERMISTOR
WHITE
RED
BLACK
BLUE
YELLOW
123456
CN800
WHITE
W17 W16 W21 W22
RED
BLACK
-
+
ACTIVE
FILTER
MODULE
L1
P
L2
N1
EMI FILTER
BLACK BLACK
G
WHITE
23
1
GGG
12 121212
CN25
BLACK
ORANGE
POSISTOR
YELLOW
6
ORANGE
3
RED
2
BROWN
1
EMI
FILTER
W200 W201 W202 W203 W11
2T
RED
YELLOW
23
1
COMPRESSOR
THERMISTOR
BLACK
GREEN
12345
CN407
W12
WHITE
YELLOW
W13
BLUE
PINK
EMI FILTER
23
1
CN26
EARTHEARTHEARTH
BROWN
ORANGE
BROWN
321
CN30
WHITE
OUTDOOR
THERMISTOR
PIPE
BLUE
CN23
BLUE
F2 FUSE
T 3.15A-250V
W10
WHITE
TM102 TM101
POWER SUPPLY PCB
W3
GREEN
SW150
DISCHARGE
THERMISTOR
THERMISTOR
BLACK
RED
12
CN21
YELLOW
CN22
CONTROLLER PCB
LED2
LED1
D151
D150
CN1
134
RED
BLACK
BLACK
W7 W6
WHITE
12
CN1
WHITE
BLACK
BROWN
3
TERMINAL
BROWN
LED3
D152
SW1
CURRENT
SETTING
CN34
YELLOW
32
BLACK
W8
W4 W5
BLACK
LN
321
F4 FUSE
T 5A-250V
LED4
D153
AC I N
1
WHITE
W9
WHITE
EARTH
EMI FILTER
G
RED
CN37
1
RED
RED
2
WHITE
1
CN36
WHITE
WHITE
2
RED
1
BROWN
2
BLUE
3
CN27
ORANGE
4
RED
YELLOW
5
WHITE
6
BLACK
1
WHITE
3
WHITE
4
WHITE
CN39
5
WHITE
WHITE
6
WHITE
7
WHITE
8
WHITE
9
BLACK
1
RED
2
RED
4
RED
CN40
5
RED
WHITE
6
RED
7
RED
8
RED
9
BLACK
1
WHITE
2
WHITE
CN50
WHITE
CN51
WHITE
CN52
WHITE
4
5
6
7
1
3
4
5
6
7
1
2
5
6
7
8
WHITE
WHITE
WHITE
BLACK
GREEN
GREEN
GREEN
GREEN
GREEN
BLACK
BLUE
BLUE
BLUE
BLUE
BLUE
2T
PRESSURE SWITCH 1
PRESSURE SWITCH 2
EV
VALVE THERMISTOR A, B
1
1
RED
2
2
3
3
YELLOW
4
4
5
5
BLUE
6
6
7
7
BLACK
8
8
WHITE
VALVE THERMISTOR C, D
1
1
GRAY
2
2
3
3
BROWN
4
4
5
5
ORANGE
6
6
7
7
GREEN
8
8
RED
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
WHITE
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
GREEN
RED
1
1
BROWN
2
2
BLUE
3
3
ORANGE
4
4
YELLOW
5
5
WHITE
6
6
BLUE
EXPANSION VALVE A
2-WAY VALVE A
3-WAY VALVE A
2-WAY VALVE B
3-WAY VALVE B
2-WAY VALVE C
3-WAY VALVE C
2-WAY VALVE D
3-WAY VALVE D
EXPANSION VALVE BEV
EXPANSION VALVE C
EV
EXPANSION VALVE D
EV
2006.04.25
8
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