Friedrich MR18Y3H Building instructions

Models
MW18Y3HIndoor Units
Outdoor Units
MW18Y3H
MR18Y3H MR24Y3H
Service and Parts Manual

FRIEDRICH AIR CONDITIONING CO.
10001 Reunion Place, Ste. 500, San Antonio, TX 78216
[phone] 877-599-5665 x 261 FAX [phone]
Email: [email protected]
www.friedrich.com
Printed in the U.S.A.
TECHNICAL SUPPORT
CONTACT INFORMATION
FRIEDRICH AUTHORIZED PARTS DEPOTS
AAA Refrigeration Service
1322 24th Street, Suite B
Kenner, Louisiana 70062
504-464-7444
877-813-7444
Alamo Service Company
1450 North Flores Street
San Antonio, Texas 78212
210-227-2450
800-328-2450
The Gabbert Company
6868 Ardmore
Houston, Texas 77054
713-747-4110
800-458-4110
Johnstone Supply of Woodside
27-01 Brooklyn Queens Expway
Woodside, New York 11377
718-545-5464
800-431-1143
Reeve Air Conditioning, Inc.
2501 South Park Road
Hallandale, Florida 33009
954-962-0252
800-962-3383
CUSTOMER SATISFACTION and QUALITY ASSURANCE
Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and
controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering
to the policies and procedures you provide us with vital information on each warranty repair you complete.
This information is used to identify product failure trends, initiate corrective action, and improve product
quality, thereby further reducing warranty expenses while increasing customer satisfaction levels.
1

INDOOR UNIT H x W x D
HxWxD
12-5/8 x 39-1/4 x 9 inch 320 x 998 x 228 mm
OUTDOOR UNIT 32-3/4 x 35-3/8 x 13 inch 830 x 900 x 330 mm
DIMENSIONS
INDOOR UNIT Shipping / Net
Shipping / Net
40 lbs / 31 lbs 18 kg / 14 kg
OUTDOOR UNIT 150 lbs / 135 lbs 68 kg / 61 kg
WEIGHT
SPECIFICATIONS
TYPE Cool & heat inverter
INDOOR UNIT
OUTDOOR UNIT
MW18Y3H
MR18Y3H
COOLING CAPACITY
HEATING CAPACITY
POWER SOURCE 208 V / 230 V
FREQUENCY 60 Hz
RUNNING CURRENT
MAXIMUM CURRENT
Cooling
Heating
INPUT WATTS Cooling
Heating
E.E.R. Cooling
COP Heating
MOISTURE REMOVAL
AIR CIRCULATION HIGH 541 cfm 920 m3/hr
18,000 BTU/h 5.28 kW
21,600 BTU/h 6.30 kW
6.3 A
14.5 A
8.0 A
1.38 kW
1.80 kW
13.0 BTU/kW 3.83 kW/kW
12.0 BTU/kW 3.50 kW/kW
5.9 Pt/h 2.8 L/hr
FAN MOTOR
TYPE Hermetic type, 6 pole, DC inverter motor, Rotary
DISCRIMINATION
WEIGHT WITH OIL
N-TF30ND1A
REFRIGERANT TYPE
PRECHARGED REFRIGERANT
R410A
4 lb 10 oz 2,100 g
34.2 lb 15.5 kg
POWER SOURCE 230 V
High speed 1,260 r.p.m.
INDOOR UNIT Middle speed 1,020 r.p.m.
Low speed 900 r.p.m.
Quiet
Cool
Heat
770 r.p.m.
OUTDOOR UNIT 620 r.p.m.
620 r.p.m.
ELECTRICAL DATA
COMPRESSOR AND REFRIGERANT
INDOOR UNIT
OUTDOOR UNIT
Cool 43 dB / Heat 44 dB
Cool 47 dB / Heat 50 dB
MW24Y3H
MR24Y3H
208 V / 230 V
60 Hz
659 cfm 1,120 m3/hr
22,000 BTU/h 6.50 kW
27,600 BTU/h 8.10 kW
7.9 A
15.5 A
10.5 A
1.76 kW
2.38 kW
12.5 BTU/kW 3.69 kW/kW
11.6 BTU/kW 3.40 kW/kW
6.3 Pt/h 3.0 L/hr
230 V
1,480 r.p.m.
1,220 r.p.m.
1,020 r.p.m.
900 r.p.m.
850 r.p.m.
800 r.p.m.
Cool 49 dB / Heat 49 dB
Cool 54 dB / Heat 55 dB
NOISE LEVEL
Pipe length 66 ft 20 m 4 lb 10 oz 2,100 g
FULL CHARGE 164 ft 50 m 7 lb 4 oz 3,300 g
ADDITIONAL CHARGE 0.43 oz/ft 40 g/m
2

DIMENSIONS
Unit : inch (mm)
Drain pipe diameter
Inside : 5/8 inch (16 mm)
Outside : 1-3/32 inch (28 mm)
Liquid pipe diameter : 3/8 inch (9.52 mm)
Gas pipe diameter : 5/8 inch (15.88 mm)
INDOOR UNIT
39-1/4" (998) 9" (228)
12-5/8"
(320)
3

Unit : inch (mm)
OUTDOOR UNIT
3"(77)
35-1/2" (900)
32-3/4" (830)
17-3/8" (440)
7/8" (21)
3/8" (9)
15-3/4" (400)
13" (330)
1-1/4"
(31)
1/2"
(12)
7-3/4" (196)
5-3/4" (147)
6-3/4" (170)
3-7/8" (99)
14-5/8" (370)
25-5/8" (650)
Air Flow
4

REFRIGERANT
SYSTEM DIAGRAM
3-Way valve
(Small)
3-Way valve
(Large)
Strainer
Strainer
Muffler
Pressure
switch
4-Way valve
Expansion
valve
Heat exchanger
( INDOOR )
Heat exchanger
( OUTDOOR )
Sub-accumulator
Compressor
Refrigerant pipe diameter
Liquid : 3/8" (9.52 mm)
Gas : 5/8" (15.88 mm)
Cooling flow
Heating flow
5

RED RED
BROWN
BROWN
BLUE BLUE BLACK BLACK BROWN BROWN BLACK BLACK
WHITE YELLOW ORANGE BLUE BROWN RED
BROWN
YELLOW
WHITE
BLACK
RED RED
GREEN WHITE BLACK
WHITE
BLACK
VIOLET WHITE
BLACK
WHITE
WHITE
WHITE
WHITE
BLACK
BLACK
GRAY
RED
WHITE
BLACK
BROWN ORANGE
BLACK RED
YELLOW
BLUE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
BLACK
BROWN
RED
ORANGE
YELLOW
12 3 4 5 6 7 8 9
12 3 4 5 6 7 8 9
12 3 4 5 6 7 8 9
12 3 4 5 6 7 8 9
12 3 4 5
12 3 4 5
12 3 4 5
12 3 4 5 12 3 4 5 6
12 3 4 5 6
12 3 4
12 3 4
12
12
121
2
3 4
5
6
7
12 12
12
12
1 2
3 4
5
6 7
1 2
3 4
5
6
1 2
3 4
5
6
1 2
1 2
1 2
3
1 2
3
1 2
3
1 2
3
1 2
3
1 2
3
1 2
3
1 2
3
1 2
1 2
CN90
CN64
CN62
CN65
CN63
CN500
CN700
CN800
CN1 CN110
TM600
TM601
CN100
W29 W28
W21
W9
W20
W19
W3
W18
W17
W2
W1
W4
CN11
L2 L1
N
P
-I N
+I N
W8 W7
W13 W12
CN303 CN301 W306
W307
TM302
TM301
W17 W16
TM102 TM101
TM303
W
TM304
VTM305
U
S
R
T
CN42 CN40 CN200 CN400
CM
L1L2321
G
G
COMPRESSOR
CHOKE COIL
TERMINAL BOARD
HIGH PRESSURE SWITCH
THERMISTOR ( COMPRESSOR TEMP. )
THERMISTOR ( OUTDOOR TEMP. )
THERMISTOR ( PIPE TEMP. ) THERMISTOR ( DISCHARGE TEMP. )
4-WAY VALVE
EXPANSION VALVE
FAN MOTOR
4WV
PMV
FM
POWER SOURCE
TRANSISTOR
PCB ASSY
(IPM) A C T P M
CAPACITOR
PCB ASSY
POWER SUPPLY
PCB ASSY
INVERTER PCB ASSY
( MAIN PCB )
7
6 5 4
3
2
1
7
6 5 4
3
2
1
7
6 5 4
3
2
1
5 4
3
2
1
3
2
1
3
2
1
2
1
2
1
2 1
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
1
6 5 4
3
2
1
5
43
2
1
1
2 3 4
5
6
1
2 3 4
5
6
CN13
CN16CN14
CN10
CN3CN1
CN8
CN6
CN5
CN11
CN2
TM1
TM4 TM2 W5
CN201
BLUE
YELLOW WHITE
BLACK RED BLUE PINK
YELLOW
ORANGE RED BLUE PINK
YELLOW
ORANGE
RED BLUE PINK
YELLOW
ORANGE RED
GREEN
WHITE
RED
BLACK BLACK
BLACK BLACK
WHITE WHITE WHITE WHITE WHITE WHITE
RED
BLACK
WHITE
RED
FM
TEST
FAN MOTOR
M STEP MOTOR ( DIFFUSER ) M STEP MOTOR ( UP / DOWN ) M STEP MOTOR ( RIGHT / LEFT )
G
12 3
TERMINAL BOARD
EX OUT
( OPTION )
EX IN
( OPTION )
THERMISTOR ( PIPE TEMP. )
THERMISTOR ( ROOM TEMP. )
WIRED REMOTE CONTROL
( OPTION )
INDICATOR PCB ASSY
THERMAL FUSE 102
CONTROLLER PCB ASSY ( MAIN PCB )
INDOOR UNIT OUTDOOR UNIT MW18Y3H / MR18Y3H CIRCUIT DIAGRAM
6

L1L2321
G
G
POWER SOURCE
7
6 5 4
3
2
1
7
6 5 4
3
2
1
7
6 5 4
3
2
1
5 4
3
2
1
3
2
1
3
2
1
2
1
2
1
2 1
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
1
6 5 4
3
2
1
5
43
2
1
1
2 3 4
5
6
1
2 3 4
5
6
CN13
CN16CN14
CN10
CN3CN1
CN8
CN6
CN5
CN11
CN2
TM1
TM4 TM2 W5
CN201
BLUE
YELLOW WHITE
BLACK RED BLUE PINK
YELLOW
ORANGE RED BLUE PINK
YELLOW
ORANGE
RED BLUE PINK
YELLOW
ORANGE RED
GREEN
WHITE
RED
BLACK BLACK
BLACK BLACK
WHITE WHITE WHITE WHITE WHITE WHITE
RED
BLACK
WHITE
RED
FM
TEST
FAN MOTOR
M STEP MOTOR ( DIFFUSER ) M STEP MOTOR ( UP / DOWN ) M STEP MOTOR ( RIGHT / LEFT )
G
12 3
TERMINAL BOARD
EX OUT
( OPTION )
EX IN
( OPTION )
THERMISTOR ( PIPE TEMP. )
THERMISTOR ( ROOM TEMP. )
WIRED REMOTE CONTROL UNIT
( OPTION )
INDICATOR PCB ASSY
THERMAL FUSE 102
CONTROLLER PCB ASSY ( MAIN PCB )
INDOOR UNIT OUTDOOR UNIT
RED RED
BROWN
BROWN
BLUE BLUE BLACK BLACK BROWN BROWN BLACK BLACK
WHITE YELLOW ORANGE BLUE BROWN RED
BROWN
YELLOW
WHITE
BLACK
RED RED
GREEN WHITE BLACK
WHITE
BLACK
VIOLET WHITE
BLACK
WHITE
WHITE
WHITE
WHITE
BLACK
BLACK
GRAY
RED
WHITE
BLACK
BROWN ORANGE
ORANGE ORANGE
BLACK RED
YELLOW
BLUE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
BLACK
BROWN
RED
ORANGE
YELLOW
12 3 4 5 6 7 8 9
12 3 4 5 6 7 8 9
12 3 4 5 6 7 8 9
12 3 4 5 6 7 8 9
12 3 4 5
12 3 4 5
12 3 4 5
12 3 4 5 12 3 4 5 6
12 3 4 5 6
12 3 4
12 3 4
12
12
121
2
3 4
5
6 7
12 12
12
12
1 2
3 4
5
6 7
1 2
3 4
5
6
1 2
3 4
5
6
1 2
1 2
1 2
3
1 2
3
1 2
3
1 2
3
1
2
3
1 2
3
1 2
3
1 2
3
1 2
1 2
CN90
CN64
CN62
CN65
CN63
CN500
CN700
CN800
CN1 CN110
TM600
TM601
CN100
W29 W28
W25
W26
W21
W9
W20
W19
W3
W18
W17
W2
W1
W4
CN11
L2 L1
N
P
-I N
+I N
W8 W7
W13 W12
CN303 CN301 W306
W307
TM302
TM301
W17 W16
TM102 TM101
TM303
W
TM304
VTM305
U
S
R
T
CN42 CN40 CN200 CN400
CM COMPRESSOR
POSISTOR
CHOKE COIL
TERMINAL BOARD
HIGH PRESSURE SWITCH
THERMISTOR ( COMPRESSOR TEMP. )
THERMISTOR ( OUTDOOR TEMP. )
THERMISTOR ( PIPE TEMP. ) THERMISTOR ( DISCHARGE TEMP. )
4-WAY VALVE
EXPANSION VALVE
FAN MOTOR
4WV
PMV
FM
TRANSISTOR
PCB ASSY
(IPM) A C T P M
CAPACITOR
PCB ASSY
POWER SUPPLY
PCB ASSY
INVERTER PCB ASSY
( MAIN PCB )
MW24Y3H / MR24Y3H
7

CN11-2 WHITE
CN11-1 RED
CN11-3 WHITE
CN11-4 WHITE
CN11-5 WHITE
CN11-6 WHITE
CN11-7 WHITE
CN3-2 WHITE
CN3-1 RED
CN2-2 BLACK
CN2-1 BLACK
CN13-1
CN13-5
CN13-4
CN13-3
CN13-2
BLACK
BLACK
CN10-3 WHITE
CN10-2 YELLOW
CN10-1 BLUE
CN10-4 BLACK
CN10-6 RED
CN8-3 YELLOW
CN8-4 PINK
CN8-5 BLUE
CN8-2 ORANGE
CN8-1 RED
CN5-3 YELLOW
CN5-4 PINK
CN5-5 BLUE
CN5-2 ORANGE
CN5-1 RED
CN2-3 YELLOW
CN2-4 PINK
CN2-5 BLUE
CN2-2 ORANGE
CN2-1 RED
CN6-3 BLACK
CN6-2 WHITE
CN6-1 RED
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
1
2
1
2
1
2
1
2
3
4
5
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
5
4
3
2
1
CN2
SJH20-05WS
CN5
SJH20-06WS
CN8
B06B-PASK
CN10
B06B-XARK
CN13
B5P-SHF-1AA
CN1
2P-SAN
CN3
JC25-02HG
CN11
B07B-PASK
W5
GREEN
CN201
JB20-07HG
TEST
XARR-03VF XAP-03V-1
ROOM THERMISTOR
PIPE THERMISTOR
EX IN
EX OUT
EARTH TERMINAL
LOUVER ( RIGHT / LEFT )
LOUVER ( UP / DOWN )
LOUVER ( DIFFUSER )
FAN MOTOR
WIRED REMOTE CONTROL UNIT
M
M
F. M.
M
EARTH
OUTDOOR UNIT
THERMAL
FUSE 102
TM2
22007
RED
TM1
22007
WHITE
TM4
22007
BLACK
TERMINAL BOARD
N
L
SERIAL
1
2
3
INDICATOR PCB ASSEMBLY
K05CY-0902HSE-D0
CONTROLLER PCB ASSEMBLY
MW18Y3H : K08CX-0903HSE-C1
MW24Y3H : K08CX-0904HSE-C1
CN14
B3B-XH-AM
CN16
B2B-XH-AM
CONTROL UNIT
MW18Y3H : EZ-0090HHSE
MW24Y3H : EZ-0090KHSE
INDOOR PCB
CIRCUIT DIAGRAM
8

5V
12V
R88
1.0k
<1/10W>
C57
0.01
<B>
I C7-2
uLN2003ADR
L4
0R0
C51
0.01
<B>
K10
G5NB-1A
L3
0R0
R101
330
<1/10W>
CN14
B3B-XH-AM
CN16
B2B-XH-A
2 15 4
2 3
1
3
4
2
1
I C1-63
I C1-64
2
1
3 2
1
12V
R109
10k
<1/10W>
BZ1
PKM13EPYH-4000-A0
I C18-7
uLN2003ADR
710
12V
12V 12V 12V
IC7 IC18 I C 16
9 8
9 8
9 8
I C1-4
1
2 3 4
5
5V
R90 - R93
330 <1/10W> x 4
R95, R97 - R99
10K <1/10W> x 4
C28
0.01
<B>
R33
1.0k
<1/10W>
5V
SW1
KSMC632PB
R32
10k
<1/10W>
I C1-40
A
15V
4 3 2
1
4
3
2 1
5V
5V
CN11
B07B-PASK-1
C53
1000p
<R> +
C40
100/
25V
C41
0.01
<B>
R110
10k
<1/10W>
X1
8.38MHz
<CSTLS>
R54 0R0
R57, R60, R58, R59
330 <1/10W> x 4
R113
47
<1/10W>
15V
R52
10k
<1/10W>
5V
5V
C26
0.1
<F>
R39
10k
<1/10W>
I C6
BR93L46RF-WE2
5V
+R42
270
<1/10W>
C27
47/
35V
R38
15k
<1/10W>
R34
12k
<1/10W>
C29
0.22
<B> +
C37
1000/
25V
+
R64
1.8k
<1/10W>
C33
47/
35V
D4
D1FL20U
20V
C35
0.01
<F>
T1
MY064
3 4
2
1
C
AREF
3
2
1
6 5
1 2 3
4
8
9
10
2
3
1
6 5 43
2 1D
F
S
C
L
X
2
4
3
1
2
31
G
I O
5V
R79, R81 - R84
10k <1/10W> x 5
5V
R108
10k
<1/10W>
R107
1.0k
<1/10W>
C52
1000p
<R>
314
413
512
6 11
710
116
2 15
3 14
611
16
1
2 15
3 14
4 13
413
5 12
611
710
2
13
I
G
O
12
5
3
2
1
2
3
1
2
3
1
5V R51
1.0k
<1/4W>
1%
+
5V
15V
I C14
PS2561L-1
-V-F3 ( L )
R44
1.0k
<1/10W>
C30
1000p
<R>
R43
330
<1/10W>
Q6
RT1N241M
R47
10k
<1/10W>
R55
820
<1/4W>
1%
R56
4.7k
<1/10W>
R63
6.8k
<1/4W>
340V
C1
0.1
<X7R>
CN10
B5 ( 6-5 ) B-XARK-1-A
C36
100/
25V
C73
10k
<1/10W>
CN13
B6P-SHF-1AA
I C18-6
uLN2003ADR
15V
C56
0.1
<F>
+
I C20
78M15
C42
330/
25V
JM9
0R0
20V
+
C39
100/
50V
C25
0.1
<F>
R8
1.0k
<RS-2W>
I C18-5
uLN2003ADR
I C1
uPD780148 5V
8 4 7 56
3 2 1
VCC DO NC GND
CS
SK
D I
NC
8
4
IC5
12V
C23
0.1
<F>
5V
R30
10k
<1/10W>
12V
16 1
+
-
+
-
6 57
2 31
I C5-2
BA10393F
I C5-1
BA10393F
I C7-1
uLN2003ADR
R31
390
<1/4W>
1%
12V
5V
12V
12V
JP5
0R0
R4
10k
<1/10W>
R17
10k
<1/10W>
D3
DAN217U
21
3
R20
1.0k
<1/10W>
R21
15.4k
<1/10W>
1%
R22
28k
<1/10W>
1%
C16
0.1
<F>
C15
0.1
<F>
R14
1.0k
<1/10W>
R13
1.0k
<1/10W>
R6
49.9k
<1/10W>
1%
C3
0.1
<F>
L7
BLm18
<BD102>
L6
BLm18
<BD102>
R2
10k
<1/10W>
1%
5V
CN1
150-103-86174
C2
0.1
<F>
CN3
02 / 03 JC25 / XARR
1007 L=60
CN6
B05B-XASK-1-A
D2
D1F60
5V
C14 0.01 <F>
I C2
BA05T
JM3
7V
C22
0.1
<F>
+
C19
330/
25V
TM1
TM4
F1
FSL 3.15A
250V
( EM )
FH1 FH2
VA1
470V
<TNR>
C13
0.01
<F>
C8
0.47
<LE>-M
W5
L1
SS1V-R060330
TH1
5D2-10-LCS
+
C6
100/
420V
D6
GSIB460L I C8
TOP244YN
C7
0.1
<F>
C5
0.1
<F>
C21
0.1
<F>
C20
0.1
<F>
C18
10/
25V
+
C17
330/
25V
+
C12
0.1
<F>
Q7
2SA1037AK
<Q>
R46
47
<1/2W>
340V D7
UD7G-TB
R45
100k
<RS-2W>
C32
0.01
<ECQE>
12V
I C19
TL431I LPRE3
R76
47k
<1/10W>
1%
C38
0.1
<F>
R53
5.6k
<1/10W>
R48
200k
<1/10W>
1%
R67
150
<1/10W>
D12 D2FL20U
D10 D1FL20U
Q10
RT1N241M
C50
0.01
<B>
Q11
RT1N241M
D14
DAN202K
R106
1.0k
<1/2W>
C101
0.022 <LE>
TM2 VA6
470V
<TNR>
5V R105
10k
<1/10W>
R103
390
<1/10W>
5V
R114
390
<1/10W>
C54
0.01
<B>
IC26
GK-LV3011E4
CN8
B06B-PASK-1
CN2
SJH20-05WS
CN5
SJH20-06WS
R49 5.6k <1/10W>
D8
1SS355
C4
47pF/
1kV
SL
I C1-73
I C1-59
CS
I C1-43
I C1-3
R37 10k <1/10W>
R40 10k <1/10W>
D9
D1FL20U
A
A
I C1-33 I C1-32 I C1-29 I C1-28
I C1-47 I C1-46
I C1-38
I C1-47 I C1-46
I C1-6
I C26-14
I C26-10
I C1-3 CS
T1-12
K1-4
I C26-14 I C26-10
4 3
2
1
T1-12
I C1-76 I C1-42 I C1-41 I C1-75 I C1-74
18 14 10 5 4 3 21
5
64 3 2 17
8
32
1
AUTO RESTART / PULAG ON
ROOM TEMPERARURE CORRECTION - 1 REMOTE CONTROL SWITCH - 1 ROOM TEMPERARURE CORRECTION - 2
REMOTE CONTROL SWITCH - 2
JM5 JM6 JM7
JM8
JM10
6 5 4
3 2
1
6 5 4
3 2
1
5 4
3 2
1
5 4
3 2
1
1
2 3 4
5 6
7
1
2 3 4
5
1
2
3
1
2 1
I C1-43 I C1-42 I C1-41 I C1-40 I C1-38
I C1-76 I C1-75 I C1-74 I C1-73 I C1-6
I C1-4 I C1-64 I C1-63 I C1-59 I C1-57
2
3
1
16
15
13
12 14
57
58
59
60 61
62
63 64
4 5 6
7
73 74 75 76 77
78
79
80
25 24 23 22
21 20
19
18
38
39
40 41 42 43 44
56
31
9
55
54
53
52
51 50 49
33
32
29
28 48 47 46
45
72
71
70
69
68
67
66
65
3
17
26 27
34
35
36
37
1
8
10
11
2
30
P00 P01 P02 P03
P04
P05 P06 P10
P11
P12 P13
P14
P15 P16 P17 P20
P21
P22 P23
P24
P25
P26 P27
P30
P31 P32
P33
P40 P41 P42 P43 P44 P45
P46
P47
RST
X1
X2
XT1 XT2 EGND
AGND
GND
REGC
I C
AVREF
P145
P144
P143 P142 P141 P140 P130
P120
P77
P76 P75
P74
P73
P72
P71
P70
P67
P66 P65 P64
P63
P62 P61
P60
P57
P56
P55 P54
P53 P52 P51
P50
EVDD
VDD
I C1-33 I C1-32 I C1-29
I C1-28
AA
I C10
PS2561L-1
-V-F3 ( L )
MANUAL AUTO SWITCH
I C25
PS2561L-1
-V-F3 ( L ) E. I. B. I N
TEST
C59, C47 - C49
0.1 <F> x 4
I C18-1 - I C18-4
uLN2003ADR x 4
I C16-4 - I C16-7
uLN2003ADR x 4
I C7-3 - I C7-6
uLN2003ADR x 4
I C7-7, I C16-1 - I C16-3
uLN2003ADR x 4
LOUVER ( DIFFUSER )
LOUVER ( RIGHT / LEFT )
LOUVER ( UP / DOWN )
5V
6
TO WIRED REMOTE CONTROL UNIT
RED
WHITE
BLACK
JP SWITCH
THERMISTOR ( PIPE TEMP. )
THERMISTOR ( ROOM TEMP. )
R35 0R0
I C15
PS2561L-1
-V-F3 ( L )
TP00351-31 x 2
5V
R104
10k
<1/10W>
E. I. B. OUT
POWER SOURCE
INDOOR UNIT CONTROLLER PCB ASSEMBLY MW18Y3H : K08CX-0903HSE-C1 MW24Y3H : K08CX-0904HSE-C1
9

CN201
07 JB20 / PAP
1061 L=230
5V
C201
0.1
<F>
5V
+ C202
47/
10V
R201
47
<1/4W>
I C201
GP1UM261RKVF
5V
D201
SLR-325MC
D203
SLR-325MC
D202
SLR-325DC
5
4
6
1
2
3
7
2
1
3
VCC
OUT
GND
GREEN
ORANGE
GREEN
INDOOR UNIT
INDICATOR PCB ASSEMBLY
K05CY-0902HSE-D0
10

INVERTER ASSEMBLY
MR18Y3H : EZ-009SHUE
MR24Y3H : EZ-009THUE
OUTDOOR PCB CIRCUIT DIAGRAM
D100
D25XB60
+
-
2
3
1
4
EMI FILTER
ZCAT2132-1130
1 T
COMPRESSOR
UL3271 AWG14 x 3
RED
WHITE
BLACK
TM305 TM304 TM303
TM301
TM302
TM101
TM102
W16
B
W17
B
W306
B
W307
B
W8
B
W7
B
W12
B
W13
B
L1 L2
P
N1
W4
B
W29
B
W28
B
W1
B
W2
B
W17
B
W18
B
W3
B
W19
B
W20
B
W9
B
W21
B
W25
B
W26
B
P. T. C. THERMISTOR (POSISTOR )
ZPR0YCE400A300
CN100
CN1
1871843-2
( G I C2.5-2P )
WHITE
POWER RELAY CONTROL
CN110
3-1747052-4
( G I C7.92-2P )
YELLOW
VAC I N1
TM601 TM600
CN400
1-1971032-4
( G I C2.0-4P )
RED
ACTPM CONTROL
CN200
1-1747052-2
( G I C7.92-2P )
RED
VDC I N
CN40
1971032-9
( G I C2.0-9P )
WHITE
I. P. M. CONTROL
CN42
1971032-5
( G I C2.0-5P )
WHITE
REVERSE CURRENT
CN303
1971032-5
( G I C2.0-5P )
WHITE
REVERSE CURRENT
CN301
1971032-9
( G I C2.0-9P )
WHITE
I. P. M. CONTROL
CT I N / OUT
CN700 B6B-XARK-1-A
RED
CN500 1747052-1 ( G I C7.92-2P )
WHITE
CN90 1-1871843-2 ( G I C2.5-2P )
RED
CN64 2-1971032-3 ( G I C2.0-3P )
BLUE
CN62 1971032-3 ( G I C2.0-3P )
WHITE
CN63 3-1971032-3 ( G I C2.0-3P )
YELLOW
CN65 1-1971032-3 ( G I C2.0-3P )
RED
SERIAL
RED
EXPANSION VALVE M
4-WAY VALVE
PRESSURE SWITCH
THERMISTOR ( COMP. TEMP. )
THERMISTOR ( OUTDOOR TEMP. )
THERMISTOR ( DISCHARGE TEMP. )
THERMISTOR ( PIPE TEMP. )
EMI FILTER
ZCAT2132-1130
1 T
EMI FILTER
ZCAT1518-0730
1 T
F100
FCT 250 5 ( EM )
( 250V 5A )
EMI FILTER
ZCAT2132-1130
2 T
CHOKE COIL
L=0.32mH 30A
EMI FILTER
ZCAT2132-1130
1 T
+
-
EMI FILTER
ZCAT1518-0730
1 T
EMI FILTER
ZCAT1518-0730
1 T
EMI FILTER
ZCAT1518-0730
2 T
C. M.
12 3 45 6 7 8 9 12 3 45
98 7 65 4 3 2 1 5 4 3 2 1
4 3 2 1
2 1 2 1
2 1
12
65 4 3 2 1
6
5
4 3
2
1
2
1
2
1
3
2
1
3
2
1
3
2
1
3
2
1
EARTH
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
RED RED
BROWN BROWN BROWN BROWN
BLUE BLUE
BLACK BLACK
N
L 3 2 1
UL1015 AWG14
BLACK
UL3271 AWG16
GREEN
UL1015 AWG14
BLACK
UL1015 AWG14
WHITE
UL1015 AWG20
BLACK
UL1015 AWG20
WHITE
UL3271 AWG20
RED
I NDOOR UNIT
POWER SOURCE
UL1015 AWG14
BROWN
UL1015 AWG14
ORANGE
UL1015 AWG14
WHITE
UL1015 AWG14
VIOLET
UL3271 AWG14
WHITE
UL3271 AWG14 WHITE
UL3271 AWG20 ORANGE
UL3271 AWG20
ORANGE
UL1015 AWG14 YELLOW UL1015 AWG14 BLUE
UL1015 AWG20
BLACK
UL1015
AWG20
WHITE
UL1015 AWG14
RED
UL1015 AWG14
BLACK
UL1007 AWG24 YELLOW
UL1007 AWG24 ORANGE
UL1007 AWG24 RED
UL1007 AWG24 BROWN
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL1007 AWG24 WHITE
UL3271 AWG20 BLACK
UL3271 AWG20 WHITE
UL3271 AWG14 BLACK
UL3271 AWG20 GRAY
UL1430 AWG24 WHITE
UL1430 AWG24 BLACK
MR24Y3H ONLY
MR24Y3H ONLY
I C404
PM601BSG
( A C T P M )
POWER SUPPLY PCB ASSEMBLY
MR18Y3H : K09DH-0904HUE-FL0 MR24Y3H : K09DH-0900HUE-FL0
TRANSISTOR PCB ASSEMBLY
( I. P. M. )
MR18Y3H : K07BT-0905HUE-TR0 MR24Y3H : K07BT-0906HUE-TR0
CAPACITOR PCB ASSEMBLY
MR18Y3H : K05FB-0902HUE-P0 MR24Y3H : K05FB-0903HUE-P0
INVERTER PCB ASSEMBLY ( MAIN PCB ) MR18Y3H : K07BS-090EHUE-C1 MR24Y3H : K07BS-090FHUE-C1
CN800 B5 ( 7-2.3 ) B-XASK-1-A
WHITE
DC FAN MOTOR F. M. 6
5
4 3
2
1
RED
BLACK
WHITE
YELLOW
BROWN 7
F101
FCT 250 5 ( EM )
( 250V 5A )
11

5V
5V
R40
10k
<1/10W>
D670
DAN217U
3
2 1
R41
1.0k
<1/10W>
C42
1000p
<B>
C670
0.1
<F>
R674
1.0k
<1/10W> R84
1.0k
<1/10W>
5V
R85
4.7k
<1/10W>
C74
470p
<B>
5V
I C1
MB90467PFM
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 6
4
22 23
2
13
49
24
13
48
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
56P63
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 P51
X0
X1
VCC
AVCC
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
AGND
GND GND
X1
4.00MHz
<FCR>
R11
1.0k
<1/10W>
C11
0.1
<F>
R10
100k
<1/10W>
C12
0.1
<F>
5V
I C10
BU4842F
2
1
3
4
VDD
OUT
NC
GND
JM102 JM103 JM101
R903, R902, R901 10k <1/10W> x 3
5V
R6
1.0k
<1/10W>
R7
10k
<1/10W>
5V
SW2 I C30
S-93C56BD0I 5V
C30
0.1
<F>
R31
10k
<1/10W>
15V
C43
0.1
<F>
-8V
A
A
A
5V
R645
10k
<1/10W>
18V
D12
1SS355
I C5
7818
D9
D1FL20U
+
C9
220/
50V
C19
0.1 <F>
+C10
10/50V
D1FL20U x 3D7
D8 D9
15V
C13
330/25V
+12V
+
1
2
3I
G
O
1 3
2
I
G
O
++
5V
D13
1SS355
T1
RPZ-1F
10
9 8
7
6
1
2 3
4 5
I C3
TOP243PN
D5
UF4005
R19 0R0
R12 0R0
C8
2200p
<E>
R18
150k
<2W>
R14
560k
<1/8W>
1%
15V
R15 - R17
510k
<1/8W> 1%
x 3
C211
33/
450V
+
1
2 3
4
8 7
5
M
S S
C
S
S
D
+
R13
47
<1/10W>
C6
47/
35V
D4
1SS355
D2
1SS355
D3
UDZS8.2B
C7
0.1
<F>
F201
T 3.15A 250V ( EM )
W5
R900
10k
<1/10W>
JM100
C1
0.1
<F>
12V D1
SLR-332VRTE7
<RED>
R3
2.2k
<1/10W>
C5
0.1
<F>
12V
I C2
uLN2003ADR
16 15
14
13 12
11
10
98
7 6 5 4
3 2
11C
2C 3C
4C
5C
6C 7C
COM
1B
2B 3B
4B
5B
6B 7B
E
C2, C3
0.1 <F> x 2
5V
C4
10/
25V
+
JM1
R4
10k
<1/10W>
5V
JM2
R2
10k
<1/10W>
5V
U
X V
Y
W
Z
D10
1SS355
-8V
+C18
100/
25V
C14
470/
25V
R26 10k
<1/10W>
C22
0.1
<F>
C15
100/
25V
C17
100/
25V
C16
0.1
<F>
I C4
7805
C601
0.1
<F>
R603
22k
<1/10W>
R601
1.0k
<1/10W>
1%
R602
4.75k
<1/10W>
1%
+
C600
220/
25V
R600
1.0k
<1/10W>
1%
D600
DAN217U
5V
CT600
CT-1B 1
2
3
3
52
1
18 14 10 5 4 3 21
54 3 2 16
7
85V
5V
F110
T 3.15A 250V ( EM ) C21
0.022
<F>
R23
1.0k
<1/10W>
Q200
2SC2412K
<BQ>
R24
1.0k
<1/10W>
JM200
R21
27k
<1/10W>
R20
10k
<1/10W>
C20
0.022
<F>
R22
1.0k
<1/10W>
1
3
2
1 3
2 4
K500
G5NB-1A
DC12V
JM501
12V
JM502
JM504
CR500
RE1202
0.2/120
12V
L80015V 15V
C802
0.1
<F>
R800
27k
<1/10W>
D801
HZ24BP
R801
22k
<1/10W>
+C800
4.7/
50V
5V 5V
D800
DAN217U
C801
0.01
<B>
R803
1.0k
<1/10W>
Q801
DTA143EUA
Q800
DTC143EUA
R802
10k
<1/10W>
3
1
2
3 1
2
3
2 1
I C700
TD62064
12V
C700
0.1
<F>
R703
R702 R700
R701
1.5k <1/10W> x 4
12V
2 7
9
16
4
5
12
13
3 6
11
14
1 8
10 15
O1
O2
O3 O4
GND1
GND2
GND3
GND4
I 1
I 2 I 3
I 4
COM1
COM2
NC1
NC2
R90
1.0k
<1/10W>
C90
0.1
<F>
5V
R91
2.2k
<1/10W>
H Y I C 2 0
GK-30434E2
L60
BL02Rn1
L90
BL02Rn1
5V
R62
10k
<1/10W>
R60
10k
<1/10W>
R64
10k
<1/10W>
R69
10k
<1/10W>
C62
0.1
<F>
C61
0.1
<F>
C63
0.1
<F>
R68
13k
<1/10W>
R65 38.3k
<1/10W>
1%
R61 13k
<1/10W>
C60
0.1
<F>
R63 4.75k
<1/10W>
1%
18V 18V
D11
HZ24BP
C400
0.01
<F>
Q400
DTA143EUA
R401
22k
<1/10W>
R30
10k
<1/10W>
C401
1000p
<B>
Q401
DTC143EUA
AA
2
1
3
2
3
1
R403, R402
270
<1/10W>
1% x 2
5V
R952, R951, R950
10k <1/10W> x 3
R953
1.0k
<1/10W>
R956
10k
<1/10W>
R954
1.0k
<1/10W>
ACTPM CONTROL
CN400 G I C2.0-4P
RED
4 3
2
1
WN VN
UN
WP
VP
UP
-8V
+15V
I P M CONTROL
CN40 1971032-9 ( G I C2.0-9P )
WHITE
9 8 7
6
5
4 3
2
1
CN42 1971032-5 ( G I C2.0-5P )
WHITE
1
2
CN200
1-1747052-2
G I C7.92-2P
RED
DC VOLT I N
TM601
86028
TM600
86028
CN110
3-1747052-4
G I C7.92-2P
YELLOW
AC VOLT I N 1
2 L
1 N
SERIAL
B
W4
RED
SELIAL
CN500
1747052-1
( G I C7.92-2P )
WHITE
CN1
1871843-2
( G I C2.5-2P )
WHITE
POWER RELAY CONTROL
1
2 1
4 5 6
7
CN801
B5 ( 7-2.3 ) B-XASK-1-A
WHITE
DC FAN MOTOR
ELECTRIC EXPANSION VALVE
CN700
B06B-XARK-1-A
RED
THERMISTPR ( PIPE TEMP. )
CN62
1971032-3
( G I C2.0-3P )
WHITE
CN64
G I C2.0-3P
BLUE
THERMISTPR ( OUTDOOR TEMP. )
THERMISTPR ( COMPRESSOR TEMP. ) 3
2
1
3 2
1
1
2
3
4
5
6
2
1
P-FANPWM
P-FAN-I N
P-SO P-PR
P-LED P-V4-DC P-V4-AC P-DBG-4
P-EPV-D P-EPV-C P-EPV-A
P-EPV-B
P-AN-TE
P-AN-TD
P-AN-TA
P-POWER
P-S I
P-AN-CT
P-S I
TCK TRXD TMODE
P-E2P-D I
P-EPV-A P-U P-X P-V P-Y
P-W P-Z
P-POWER
P-E2P-SK
TAUX
P-TTR I P-FO
P-AN-DC
P-POS
P-U P-V
P-W
P-X P-Y P-Z
P-E2P-CS P-E2P-SK P-E2P-D I
1
2
3
75
6
4
8CS
SK
D I
NC
VCC
DO
TEST
GND
TAUX TTXD
TRXD
TMODE
TAUX3
TCK
P-FAN-I N
P-DBG-4
P-FANPWM
P-AN-CT
TTXD
TAUX3 P-POS
P-V4-AC
P-V4-DC
P-LED
P-PR
P-SO
P-TTR I P-FO
P-E2P-CS
P-EPV-B
P-EPV-D P-EPV-C
P-AN-DC
P-AN-TE
P-AN-TA
P-AN-TD
JM503
C91
0.01
<F>
CN90
1-1871843-2
( G I C2.5-2P )
RED
PRESSUER SWITCH
1
2
CN65
1-1971032-3
( G I C2.0-3P )
RED
1
2
3
THERMISTPR ( DISCHARGE TEMP. )
CN63
3-1971032-3
( G I C2.0-3P )
YELLOW
1
2
3
C65
0.1
<F>
TEST
SERVICE JUMPER
MANUAL AUTO SWITCH
R651
10k
<1/10W>
5V
C49 0R0
5V
R52
10k
<1/10W>
P-PFCEN or P_AFS
P-PFCEN or P_AFS
P-PFCPWM or P_NC_3
P-PFC-C or P_SW_PRS
P-AN-AC or P_AN_CP
P-PFC-C or P_SW_PRS
P-AN-AC or P_AN_CP
5V
R955
22k
<1/10W>
TRES
OUTDOOR UNIT INVERTER PCB ASSEMBLY ( MAIN PCB ) MR18Y3H : K07BS-090EHUE-C1 MR24Y3H : K07BS-090FHUE-C1
REVERSE CURRENT
12

37
23 22 21 24 25 26
27 28
36 35
34 33 32 31
38 13 15
20 16 18
7
9
10 12
1 3 4 6 UP
VP1
VUFB
VUFS
VP
VP1
VVFB VVFS WP
VP1
VNO
VWFB VWFS
NC
NW
NV
NU
W
V
U
P
WN
VN
UN
FO
CFO
CIN
VNC
VN1
-
+
75
6
+
-
1
3 2
3
2 1
3
21
I PM-G
I PM-G
I PM-G
POWER-GND
POWER-G
R55 0R0
C50 0R0
I P M-GND
I C70-2
BA2903F-E2
C161
0.1
<X7R>
D100
LL25XB60
I C301
MR18Y3H : PS21765 MR24Y3H : PS21767
C324
C325
C326
0.1 <F>
x 3
R360
68
<1/4W>
C311 - C316
1000p <B> x 6
I P M-GND
R80
5.6k
<1/10W>
1%
R108
4.3k
<1/10W>
1%
R81
33k
<1/10W>
1%
R107
39k
<1/10W>
1%
C72
470p
<B>
I P M-GND C73
330p
<B>
C71
0.1
<F>
C70
10/
25V
+
I C70-1
BA2903F-E2
15V D70, D71
DAN217Ux 2
C300
0.1
<F>
-8V
15V
C301
0.1
<F>
+
C308
47/
35V
I P M-G
9
8
7
6 5 4
3 2 1
+15V
-8V
UP
VP
WP
UN
VN
WN
L70
R71
150k
<1/3W>
1%
R70
120k
<1/3W>
1%
R69
120k
<1/3W>
1%
R77
143
<1/10W>
1%
R76
5.76k
<1/10W>
1%
470
<1/10W>
x 6
R316
R317 R318
R319 R320 R321
120k
<1/3W>
1% x 6
R68 R65
R62
R67 R64
R61
R66 R63
R60
150k
<1/3W>
1% x 3
R304
0R0
C332
0.1
<F>
+
C302
100/
35V
L300
BL02Rn1
15V
C327
0.022
<F>
C330
100p
<B>
D307
ZP1027-TP
1 2 3 4
5
2 3 4
1
+
-
W306
B
WHITE
P
N
POWER-G
CN301
1971032-9
WHITE
D301 - D303
US1J x 3
C323
C322
C321
0.22
<F>
x 3
C305
C304
C303
+
+
+
47/
35V
x 3
CN303
1971032-5
WHITE
TM101
ORANGE
TM102
BROWN
TM301
YELLOW R284, R285, R302
0.04 <5W> x 3
R312
820
<1/10W>
TM305 RED U
TM304 WHITE V
TM303 BLACK W
TM302
BLUE
OUTDOOR UNIT TRANSISTOR PCB ASSEMBLY ( I P M PCB ) MR18Y3H : K07BT-0905HUE-TR0
W307
B
BLACK
W16
B
RED
W17
B
BLACK
MR24Y3H : K07BT-0906HUE-TR0
13

12V
K101
G4A-1A
or
DW12D1
C108
3.3
<LE>
L102
N200500K1D7C-02N
R101
ZPR0RCH400
PTC THERMISTOR
12V
L101
RCH3818-022PF07
C106
3.3
<LE>
43
1 2
3
2
4 1
43
L100
RCH3818-022PF07
1 2
C103
3.3
<LE>
C104, C105
0.022 <YE>
x 2
C100
3.3
<LE>
SA100
RA-302M
VA100, VA101
470V
<TNR>
x 2
F101
5.00A
250V
F100
5.00A
250V
CN100
172520-2
POWER RELAY CONTROL
W28
B
ORANGE
W29
B
BROWN
1
2
W1
B
BLACK
W2
B
WHITE
W17
B
BLACK
W18
B
WHITE
W3
B
GREEN
W19
B
BLACK
W20
B
WHITE
N
L
N
TO I NDOOR UNIT
EARTH
AC VOLT OUT
C101, C102
0.033 <YE>
x 2
L
POWER SOURCE
W21
B
GRAY
CT OUT
W9
B
BLACK
OUTDOOR UNIT MR18Y3H POWER SUPPLY PCB ASSEMBLY K09DH-0904HUE-FL0
14

12V
K101
G4A-1A
or
DW12D1
C108
3.3
<LE>
L102
N200500K1D7C-02N
12V
L101
RCH3818-022PF07
C106
3.3
<LE>
43
1 2
3
2
4 1
43
L100
RCH3818-022PF07
1 2
C103
3.3
<LE>
C104, C105
0.022 <YE>
x 2
C100
3.3
<LE>
SA100
RA-302M
VA100, VA101
470V
<TNR>
x 2
F101
5.00A
250V
F100
5.00A
250V
CN100
172520-2
POWER RELAY CONTROL
W25
B
ORANGE
W26
B
ORANGE
PTC OUT
W28
B
ORANGE
W29
B
BROWN
1
2
W1
B
BLACK
W2
B
WHITE
W17
B
BLACK
W18
B
WHITE
W3
B
GREEN
W19
B
BLACK
W20
B
WHITE
N
L
N
TO I NDOOR UNIT
EARTH
AC VOLT OUT
C101, C102
0.033 <YE>
x 2
L
POWER SOURCE
W21
B
GRAY
CT OUT
W9
B
BLACK
OUTDOOR UNIT MR24Y3H POWER SUPPLY PCB ASSEMBLY K09DH-0900HUE-FL0
15

W7
B
YELLOW
W8
B
BLUE
W12
B
WHITE
W13
B
VIOLET
P
N
+
++
C200 - C202
660/
450V
x 3
POWER_G
W7
B
YELLOW
W8
B
BLUE
W12
B
WHITE
W13
B
VIOLET
P
N
+
+
POWER_G
MR24Y3H
CAPACITOR PCB ASSEMBLY
K05FB-0903HUE-P0
OUTDOOR UNIT
MR18Y3H
CAPACITOR PCB ASSEMBLY
K05FB-0902HUE-P0
C201
660/
450V
C203
660/
450V
16

ERROR DETECTION
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
8 flash
2 flash
Outdoor unit thermistor error 3 flash
3 flash
2 flash
3 flash
4 flash
8 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
2 flash
Refrigerant cycle error 7 flash 3 flash
5 flash
Optional function error
Model information error
8 flash 3 flash
0.1 sec on/off 0.1 sec on/off
4 flash
6 flash
Current trip error
Main relay welded
Wired remote controller error
Compressor temperature thermistor open / short
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
Pressure switch trouble
Active filter voltage trouble (first time)
Active filter voltage trouble (second time)
PFC circuit error
17

18

PARTS
INDOOR UNIT
4
3
4
2
1
5
5
1 Front Panel Total Assy 67201282
2 Front Panel 67201791
3 Intake Grille Assy 67201501
4 Air Filter 67201502
5 Clamper Grille 67200936
-- Remote 67201294
-- Remote Holder 67201533
Ref Descriprion Part number
19