Friedrich MR18Y3F, MW18Y3F User Manual
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
Models
Indoor unit Outdoor unit
MW18Y3F MR18Y3F
type
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS . . . . . . . . . . . 2
REFRIGERANT SYSTEM DIAGRAM . . . . . 3
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . 4
INDOOR PCB CIRCUIT DIAGRAM 5
OUTDOOR PCB CIRCUIT DIAGRAM 8
ERROR CONTENTS . . . . . . . . . . . . . . . . . .
DISASSEMBLY ILLUSTRATION . . . . . . . . 12
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . 15
STANDARD ACCESSORIES . . . . . . . . . . . 17
. . . . . .
. . . .
10
SPECIFICATIONS
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
ELECTRICAL DATA
POWER SOURCE
FREQUENCY
RUNNING CURRENT
INPUT WATTS
E.E.R.
COP
MOISTURE REMOVAL
AIR CIRCULATION -High
COMPRESSOR
TYPE
COOLING
HEATING
COOLING
HEATING
COOLING
HEATING
COOL & HEAT INVERTER
MW18Y3F
MR18Y3F
5.28 kW
6.30 kW
208 - 230 V
60 Hz
7.7 A
8.6 A
1.73 kW
1.93 kW
3.05 kW/kW
3.28 kW/kW
2.8 L/hr
Cool 700 m3/hr Heat 700 m3/hr
Hermetic type, 4 pole, 3 phase,
DC inverter motor, Rotary
DISCRIMINATION
REFRIGERANT
FAN MOTOR
POWER SOURCE
INDOOR UNIT
OUTDOOR UNIT
DIMENSIONS
INDOOR UNIT
OUTDOOR UNIT
WEIGHT
INDOOR UNIT
OUTDOOR UNIT
NOISE LEVEL
INDOOR UNIT
OUTDOOR UNIT
R410A
HIGH-SPEED
MED-SPEED
LOW-SPEED
QUIET
H x W x D
H x W x D
GROSS / NET
GROSS / NET
DA / 30A / F-25F
1,150 g
208 - 230 V
Cool 1,480 r.p.m. Heat 1,480 r.p.m.
Cool 1,260 r.p.m. Heat 1,300 r.p.m.
Cool 1,040 r.p.m. Heat 1,110 r.p.m.
Cool 850 r.p.m. Heat 950 r.p.m.
Cool 860 r.p.m. Heat 820 r.p.m.
275 x 790 x 215 mm
578 x 790 x 300 mm
12 / 9 kg
44 / 40 kg
C 44 dB H 42 dB
C 50 dB H 50 dB
REFRIGERANT (R410A)
Pipe Length
FULL CHARGE AMOUNT
ADDITIONAL REFRIGERANT
15 m
20 m
2006.02.20 1
1,150 g
1,250 g
20 g / m
DIMENSIONS
Model : MW18Y3F / MR18Y3F
(unit : mm)
790
275
508
48
20
215
347
540
790
578
10
125
66
320
300
2006.02.20 2
REFRIGERANT SYSTEM DIAGRAM
Model : MW18Y3F / MR18Y3F
Muffler
Compressor
3-Way
valve
4-Way valve
Heat exchanger
( INDOOR )
Sub-heat
exchanger
( INDOOR )
2-Way
valve
Strainer
Expansion valve
Sub-accumulator
Cooling
Heating
Refrigerant pipe diameter
Liquid : 1/4" (6.35 mm)
Gas : 1/2" (12.7 mm)
Heat exchanger
( OUTDOOR )
Strainer
2006.02.20 3
CIRCUIT DIAGRAM
Model :
MW18Y3F / MR18Y3F
INDOOR UNIT
OUTDOOR UNIT
CN201
1
2
3
4
5
6
7 7 7
INDICATOR PCB ASSY
FM
FAN MOTOR
GRAY
GRAY
THERMAL FUSE
TERMINAL
RED
1
WHITE
2
WHITE
3
WHITE
4
WHITE
5
WHITE
6
WHITE
BLUE
1
YELLOW
2
WHITE
3
BLACK
4
5
RED
6
POWER CIRCUIT
3
3
2
2
CN7
1
1
W1
102
1
2
3
4
5
6
1
2
3
4
5
6
WHITE
CN3
CN1
SW
W2
BLACK
CN10
CONTROLLER PCB ASSY
CN5 CN6 CN2
VARISTOR
FUSE
3.15A
W3
RED
321
1
2
3
4
5
1
2
3
4
5
1
2
1
2
G
RED
1
ORANGE
2
YELLOW
3
PINK
4
BLUE
5
BLACK
BLACK
PIPE TEMPERATURE
THERMISTOR
BLACK
BLACK
ROOM TEMPERATURE
THERMISTOR
GREEN /
YELLOW
1
1
2
2
3
M
4
5
STEP MOTOR
3
4
5
REACTOR
YELLOW
YELLOW
2
1
2
1
WHITE
PIPE TEMP. THERMISTOR
BLACK
BLACK
BROWN
BROWN
DISCHARGE PIPE TEMP. THERMISTOR
OUTDOOR TEMP. THERMISTOR
BLACK
BLACK
WHITE
RED
FUSE
WHITE
5A-250V
FUSE 20A-250V
BLACK
BLACK
BLACK
RED
BLACK
GREEN
W10
W11
1
1
2
2
CN71
3
3
4
4
CONTROLLER PCB ASSY
1
1
2
2
CN70
3
3
W4
W2
W1
W3
TO OUTDOOR UNIT
RED
W7
WHITE
W8
BLACK
W9
1
1
2
2
3
CN801
CN40
CN30
3
4
4
5
5
6
6
1
1
2
2
3
3
4
4
5
5
6
6
1
1
2
2
3
3
RED
BLACK
WHITE
YELLOW
BLUE
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
RED
WHITE
BLACK
F M
E V
4WV
R(R)
COMPRESSOR
C M
S(S)
C(T)
FAN MOTOR
EXPANSION VALVE
4-WAY VALVE
1
1
2
2
3
3
TERMINAL
TO INDOOR UNIT
1
3
2
(L)
POWER SUPPLY
(N)
G
5
4
2006.02.20 4
INDOOR PCB CIRCUIT DIAGRAM
Model : MW18Y3F
CONTROL UNIT
EZ-0051FHSE
TERMINAL BOARD
OUTDOOR UNIT
N
L
SERIAL
N
L
3
TERMINAL FUSE
REMOTE CONTROL UNIT
103
CN10-1 RED
CN10-2 WHITE
CN10-3 BLACK
EARTH
CN7
B3B-XASK
1
3
CN10
B5B-XASK
1
2
3
4
5
EARTH
TERMINAL
CONTROLLER PCB ASSY
K04CP-0504WSE-C1
CONTROLLER PCB ASSY
K04CP-0500HSE-C1
W3
RED
W2
BLACK
W1
WHITE
CN11
B2B-XH
1
2
CN12
B3B-XH
1
3
CN3
S7B-ZR-3.4
1
2
3
4
5
6
7
EX-OUT
EX-I N
ZHR-07
CN3-1 RED
CN3-2 WHITE
CN3-4 WHITE
CN3-5 WHITE
CN3-7 WHITE
CN3-8 WHITE
CN3-9 WHITE
EXTERNAL COMMUNICATION CONNECTOR
CN201
JB20-07HG
1
2
3
4
INDICATOR PCB ASSY
5
K02CB-0300HSE-D0
6
7
CN8
BS5P-SHF-1AA
FAN MOTOR
F. M.
TEST
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
1
2
3
4
5
CN1
S5 (6-5) B-XARK
6
5
4
3
2
1
2006.02.20 5
CN6
2P-SCN
CN5
2P-SAN
CN2
53325-0510
1
2
3
4
5
1
2
1
2
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
PIPE TEMPERATURE THERMISTOR
ROOM TEMPERATURE THERMISTOR
M
LOUVER
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