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15.3. OUTDOOR UNIT (CU-2E15CBPG/2E18CBPG)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
2-ROOM OUTDOOR 1/3
5V
5V
10 11 12 13 14 15
BROWN
RY-PWR
TERMINAL
AC-BLK
FUSE 20.0A
FUSE
5.0A
XBA2C50TR0
BLACK
AC-WHT
WHITE
POWER
TERMINAL
TO INDOOR
UNIT A
UNIT A
COIL
COIL
2T
3T
COIL
2T
TO INDOOR
UNIT B
UNIT B
ROOM-A
TERMINAL ROOM-B
ZNR103
ERZVGAD102
ZNR104
ERZVGAD102
RED
DATA1
DATA2
FG1
GREEN
C106
250VAC
4700P
4700P
C105
250VAC
4700P
4700P
AC2
BLACK
BLACK
AC1
AC2
BLACK
AC1
BLACK
FUSE1 3.15A
XBA2C31TR0
2
1
10
7
DB1
S1WB60B
C1
25V
6800
6800
R1
2K
1
3
2
4
CN-DC
1
3
2
4
CN-DC
12V
C52
25V
0.047
0.047
R143
30K
1/4W
1/4W
R147
22K
1/4W
1/4W
R142
30K
1/4W
1/4W
R146
22K
1/4W
1/4W
R141
30K
1/4W
1/4W
R145
22K
1/4W
1/4W
R140
30K
1/4W
1/4W
R144
22K
1/4W
1/4W
D6
ERA15-06
CN201
EXPANSION VALVE2
12V
EXPANSION VALVE1
12V
(XH6)
6
5
4
3
2
1
6
5
4
3
2
1
CN-EV1
CN-EV2
1
2
4
3
R3
1.21K
PC5
TLP421
(BL)
(BL)
1
2
4
3
5V
1
2
4
3
5V
5V
R5
20.0K
ZD4
36V 1/2W
ZD5
36V 1/2W
R8
1M
1
2
4
3
R7
680
5V
PC4
TLP421
(GR)
(GR)
Q6
DTC143XK
R90
5.6K
R6
47K
Q5
2SC2412KTX
R4
100K
C46
100V
22
ZD2
30V 1/2W
ZD1
30V 1/2W
D16
ERA15-01
D5
ERA15-10
RY-AC
A00156
D1-4
B0ACCK000005
D3
D1
D4
D2
CT101
ETQ19Z59BZ
5V
D10
B0ACCK000005
D12
B0ACCK000005
C45
10V
220
220
VR1
200
R67
590
4-WAY
VALVES
VALVES
HOT1
BLACK
HOT2
BLACK
FM1
RED
RED
RED
RY-HOT
A00207M
P16
1
ANI5
61
T06
2
RXD
3
TXD
4
SI
5
SO
6
SCK
7
RESET
8
V
DD
9
X2
10
X1
11
V
SS
12
IC(VPP)
13
P90
14
P91
15
P92
16
P93
17
P94
18
P95
19
P40
20
P41
21
P42
22
P43
23
P44
24
P45
25
P46
26
P47
27
P50
28
P51
29
P52
30
P53
31
P54
32
V
SS
33
P55
34
P56
35
P57
36
P60
37
P61
38
P62
39
P63
40
41
P64
42
P65
43
P66
44
P67
45
T00
46
T01
47
P32
48
P33
49
P34
50
P35
51
P36
52
P37
53
V
SS
54
V
DD
55
AV
DD
56
ANI0
57
ANI1
58
ANI2
59
ANI3
60
ANI4
ANI6
62
ANI7
63
AV
SS
64
A
VREF
65
NMI
66
INTP0
67
P02
68
P03
69
INTP3
70
INTP4
71
INTP5
72
P07
73
V
SS
74
RTP02
75
RTP03
76
RTP04
77
RTP05
78
RTP06
79
RTP07
80
D202
RB501V-40
16
8
9
1
2
3
4
5
6
7
12V
10 11 12 13 14 15 16
8
9
1
2
3
4
5
6
7
12V
10 11 12 13 14 15 16
8
9
1
2
3
4
5
6
7
12V
8
WC
R/B
1
V
CC
2
CS
3
SK
4
7
GND
6
D0
5
DI
R237
150K
X201
6.144MHZ
IC202
BR9080
R222
10K
R221
10K
R220
10K
R219
10K
8
7
6
5
4
3
2
1
CN-MODE
5V
5V
C217
16V
10
10
IC203
PST600DR
O
G
I
C215
16V
1.5
1.5
R236
100K
5V
C211
25V
0.047
0.047
5V
R228
10K
Y2
2
Y
3
Y3
4
Y1
5
INH
6
V
EE
7
V
SS
8
15
X2
14
X1
13
X
12
X0
11
X3
10
A
9
B
Y0
1
16
V
D
R223
10K
R217
10K
R224
10K
IC208
TC4052BF
R218
47K
C207
1000P
5V
C213
25V
0.047
0.047
R216
10K
D210
42
ECU1
42
D209
D208
D207
D206
D205
D204
D203
40
40
38
38
36
36
R210
100
C206
0.01
5V
R227
47K
C209
1000P
5V
R226
4.7K
R225
4.7K
C208
1000P
CN201
ECU1
44
46
48
47
49
45
29
31
27
25
50
47
49
45
44
46
48
50
29
31
27
25
D203-210
RN501V-40
IC204-206
TD62003AF
IC204
IC206
IC205
9
9
13
13
11
11
RY
-PWR
RY
-HOT
12V
5V
R233
10K
R211
1K
C218
0.01
16
16
43
43
1 2
(NH2)
TEST
1 2
18
18
CN-S
(NH2)
5V
R232
10K
R202
1K
R234
10K
R203
1K
R15
10K
R205
1K
R206
1K
R207
1K
R213
10K
R208
1K
C204
0.01
C203
0.01
R201
1K
5V
D201
B0ACCK000005
R235
100K
C202
0.01
R239
3K
R212
10K
C205
0.01
R209
1K
ECU1
CN201 19
19
23
23
17
17
8
8
2
2
15
15
14
14
12
12
10
10
6
6
4
4
2
2
7
7
5
5
20
20
C216
16V
10
10
5V
C212
25V
0.047
0.047
R245
10K
R246
10K
R247
10K
R248
10K
R249
10K
R215
10K
5V
R244
51K
1
1
R48
10K
5V
R238
20K
R204
1K
C201
0.01
R240
1K
12V
(MX8)
IC201
A52D4956G122
ECU1
CN201
28
28
30
30
24
24
26
26
22
32
32
37
37
22
5V
33
33
34
34
39
39
41
41
3
3
35
35
RY
-AC
12V
D18
ERA15-01
Q10
2SC2411KRTX
5V
1
2
4
3
5V
PC1
TLP620
(GB)
(GB)
R63
4.7K
R65
4.7K
R86
1K
Q9
2SC2412KTX
1 2
(NH2)
CN-PUMP
5V
C112
100P
C111
100P
R47
4.99K
R46
4.99K
R43
5.11K
6
5
7
R39
510K
R41
3K
C116
2P
2
3
4
1
8
R38
510K
R40
3K
C115
2P
15V
R42
5.11K
R45
5.11K
R44
5.11K
C47
25V
0.047
0.047
C48
25V
0.047
0.047
IC3
AN1393S
C117
2P
R32
1.00M
R33
1.00M
R34
1.00M
C2
82P
R37
34.0K
C3
82P
R36
34.0K
C1
82P
R35
34.0K
R27
499K
1/4W
1/4W
R26
499K
1/4W
1/4W
R29
499K
1/4W
1/4W
R28
499K
1/4W
1/4W
R31
499K
1/4W
1/4W
R30
499K
1/4W
1/4W
12V
5V
R16
1K
C38
1000P
R17
5.11K
R19
10K
15V
C39
50V
10
10
Q8
DTA143XK
Q7
DTC143XK
R18
5.11K
L
N
AC230V 50Hz
1
2
3
1
2
3
C108
250VAC
1
1
C107
250VAC
1
1
PTC3
D4DDE100001
PTC2
D4DDE100001
LF101
G0B143N00001
CR101
J0HBJY000004
R61
39K
2W
2W
R62
39K
2W
2W
4
ZNR1
510V
T1
A401039
ELECTRONIC
CONTROLLER
(POWER)
CONTROLLER
(POWER)
CWA742957
ELECTRONIC
CONTROLLER
(CPU)
CONTROLLER
(CPU)
ELECTRONIC
CONTROLLER
(MAIN)
CONTROLLER
(MAIN)
ZNR102
510V
ZNR101
510V
ZNR105
7.5mm JP
R66
1.65K 1%
D17
ERA15-06
R131
13K 2W
R133
1.21K 1%
R136
20.0K 1%
R137
5.6K
PC6
TLP421(BL)
R135
47K
Q13
2SC2412KTX
Q13
Q12
DTC143XK
PC7
TLP421(GR)
ZD6
36V 1/2W
ZD7
36V 1/2W
R132
1M
R1
18K 3W
R134
680
1 Outdoor air temp.
2 Pipe temp. A,B
3 Heat exchanger temp.
4 Discharge temp.
2 Pipe temp. A,B
3 Heat exchanger temp.
4 Discharge temp.
Fig 1
Sensor Characteristics
Sensor Characteristics
0
5
10
10
20
60
50
40
30
-10
0
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
TEMP( C)
1
2
3
4
R
E
S
E
S
I
S
T
A
N
C
E
T
A
N
C
E
k
( )
COIL
GREEN
3T
CS-
ME7C
KPG
/
CS-ME
10CKP
G
/
/
CS-ME
12CKP
G
/
/
CS-ME
14CKP
G
/
/
CS-ME
18CKP
G
/
/
CU-2E
15CBP
G
/
/
CU-2E
18CBP
G
/
/
CU-3E
23CBP
G
/
/
C
U
-4E27C
BPG
106
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