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2-3
12PHR-N
[2] MICROCOMPUTER CONTROL SYSTEM
1. Indoor unit
1.1. Electronic control circuit diagram
LED
301
R318 180
1W
FULL
POWER
OUTDOOR
TEMP
LED
304
LED
302
LED
303
R317 360 1W
R316 100 1W
R315 100 1W
RED
YELLOW
GREEN
SG301
OPERATION
TIMER
GREEN
1W560
f2
b2
COM2
COM1
12
13
15
14
3
2
1
16
4
a1
b1
c1
d1
e1
f1
g1
g2
g1
f1
e2
e1
d2
d1
c2
c1
b1
a2
a1
R304
R305
R306
R307
R308
R309
R310
1W
560
1
2
3
4
5
6
7
8
9
10
g2
f2
e2
d2
c2
b2
a2
8
11
5
6
7
9
10
BCN301
1W
180
1W
180
1W
560
1W
180
1W
180
R128 1K
TERMINAL BO
ARD
3P
DC FAN M
OT
OR
AUT
O
REST
ART
SELECT
0.01uF 250Vx2
275V
0.1uF
C12A
C12B
275V0.1uF
NC
NC
NC
CLUSTER
BCN602
0.1uF
47uF
50V
1000p
10.0KF
47K
25V
10V 100uF
25V
47K
CN90
1000p 0.1uF 0.1uF 0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
1uF
P83
P82
P81
P80
P05
P06
P70
P71
P72
P73
P74
P75
P76
P77
P67
P66
P65
P64
P31
P63
P62
P61
P60
VDD1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
P140
P141
P142
P143
P144
P145
64
63
62
61
60
59
58
57
56
55
54
53
52
51
P00
P01
P02
P03
P04
P131
P130
P20
P21
P22
P23
P24
P25
P26
P27
P150
P151
P152
P153
P154
P155
P156
P157
AVSS
VSS1
P30
P87
P86
P85
P84
0.01uF
25V
25V
25V
25V
25V
0.1uF
0.01uF
0.01uF
NC
0.1uF
100uF 10V
4.7K
4.7K
1K
R93
100K
C90
R90
7.5K
4.7K
4.7K
10K
10K
6.8KF
0.1u
50V
100u
35V
25V
0.1u
1M
1/4W
3.3K
910x2
HEAT ONLY
47K
4.7Kx2
POWER
MODEL
BZ1
1/4W 1.8K
KRC108S
KRC108S
NF1
D1N60
11K
2W
4.7K
56K
TEST
4.7K
4.7K
CLUSTER
4.7K
4.7K
6.8KF
3.3K
3.3K
6.8K
56K
16V47uF
10K
6.8K
R6
R7100K
R8
R17
R19
R18
R29
R31
R32
R34
R37
R36
R71
R76
R77
R78
R80
R81
R86
R88
R95
R96
R100
R101
R108
R109
R110
R111
R112
R114
10KF
D2
R105
R107
ZD1HZ24-2
C135V100uF
C235V0.047uF
C350V0.01uF
C15
C16
C17
C18
C41
C42
C43
C44
C45
C46
C58
C59
C62
Q13
Q14
Q15
47K
JP8
JP9
JPW
R118
R119
R120
R40
DB1
D2SBA60
1/2W
1MX2
1K
1K
R85
R84
R41
1/2W
1M
C12
275V0.1uF
NR1
R27
R26
C5
0.01u
250V
R9
Q11
KRC106S
R97 4.7K
25V 0.1uF
C13
R38
100K
R39
16V
C301
C302
R83 10K
D4
D1N60
39K
R28
1/2W
200K
1/2W
200K
R94
1K
C61 0.1uF
KRC108S
1/4W
R302
R303
LED310
3.6Kx2
R121
10K
25V
4.7uF
C60
R11
R10
2.7K
KID65004AF
NC
0.1uF
1000pF
C65
C66
50V
1000p
0.1uF
0.1uF
25V
25V
47K
C402
C401
25V
16V
KID65004AF
KID65004AF
25V0.1uF
47uF
KID65004AF
KID65004AF
KID65783AF
C67
R116
10K
R127
4.7K
4.7K
47K
JP1
47K
R125
KID65004AF
10KF
2W
11K
JP2
NC
NC
CN1
2
1
6
4
4
5
1
1
OSC1
8MHz
5V
10K
9
50V
50V
10V
P110
P50
AVR1
AVR0 P111
P51
P52
P53
P54
P55
P56
P57
P17
P16
P15
P14
P13
P12
P11
P10
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
100
P120 P47 P46 P45 P44 P43 P42 P41 P40 REST P124 P123 FLMD X2 X1 REGC VSS VSS0 VDD VDD0
25V 25V 25V
25V
25V
50V
50V
NC
25V
NC
106S
KRC
4
3
1
2
R92
470
5.1K
R91
HAJP
12V
KIA7815
5V
5V
1K
5V
5V
12V
SW401
SAFET
Y
SW
0.01uF
50V
2
1
PC81716NIP
1
Vs
Vcc
2
7
Vm
GND
5
3
PG
1
1
2
3
4
4
D1N60
2
N
1
2W
10K
1
2
3
4
5
GND
RESET
TOOL0
FLMD0
1
2
3
680
4
PC817XP3
3
1
3
2
PC817XP3
4
4
1
2
8.2K
680
TH1
PIPE
TEMP
TH2
R33
R35
R57
R70
R73
R79
R98
R99
R102
R113
R117
D1
ROOM
TEMP
IC1
1K
1K
1K
R106
R104
PC4
PC5
PC6
PC7
CN3
C14
C40
C47
C48
C49
C50 C51 C52
C53 C54
C55
C56
Q2
IC13
IC5
10K
KR
A224S
R63
8
CN1
NT
C1 10D
SSR1
PR32MA11NXPF
R16
R1
3.3K
3.15A-250V
FU1
TOOL1
VDD
5V
2M
R74
R75
1K
9
8
8
9
IC9
Q10
12V
IC11
CN18
IC12
12V
R82
10K
1
2
PC817XP3
4
3
PC1
PC817XP3
SERIAL
SIGNAL
CIRCUIT
PC853HXP
3
2
PC2
+
R301
IC301
5V
CN17
CN10
47
BCN10
CN11
BCN302
PC
3
7
2
8
1
9
10
6
12
8
10
9
8
7
6
5
4
3
2
1
1
3
4
5
6
7
8
7
6
5
4
3
1
8
1234567
8
9
8
IC7
R122
R124 R123
10K 10K
10K
6
TXD0
RXD0
5
4
3
2
1
BL
UE
S
C
B
A
5V
2
2
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
8
6
1
2
3
11
7
7
C68
50V
PANEL SW1
SW2
PANEL
1
2
5V
2
3
4
1
2
3
4
1
47
IC401
R401
+
9
8
7
6
5
4
3
2
1
5
4
3
2
1
LOUVE
R
M
H
THERMIST
OR
THERMIST
OR
IC8
6
CN13
CN14
CN15
CN16
BCN401
CN15
R134
R132
R135
R133
5V
BR
BK
WH
RD
1K
1K
13
9
9
5V
D18
5
5
6
5
4
3
2
1
CN17
FLASH
11
9
10
5V
10
9
11
2
1
2
1
2
1
CN608
CN609
BCN604
10
9
8
7
6
5
4
3
2
1
5V
13
11
12
10
9
8
7
12V
5V
BCN602
BCN601
CN601
CN602
CN603
CN19
LOUVER M V L
LOUVER M V R
1234
5
IC14
9
8
1234567
8
9
8
7
6
5
4
3
2
1
CN15
CN14
6
6
5
4
3
2
1
HAN
GM
R
HAN
GM
L
5
4
3
2
1
12345678
9
8
7
6
5
4
3
2
1
1234
5
PANE
LM
L
PANE
LM
R
1
2
34
5
BCN603
BCN604
CN604
CN605
CN606
CN607
4.3KF
R129
10K
1W
100K
BL
UE
R137
680
E
C7
C8
C6
G(
Y)
10KF
Q3 KRA106S
R51 2.7K
R52 1.5K
R89 2.2M
R72 6.8K
R61 3.3K
R64 3.3K
R136 56K
IC3 KIA431
R54 10KF
R49 220
C30 220uF 10V
C23 10uF 16V
C29 1000uF 25V
PC8 PC817x3
R43 47
R42 120K 1/2W
C21 1000pF 1KV
D10 RU2CV1
D5 D1FL20U
R45 3.3
C19 100uF 50V
C24 47uF 16V
D8 D1FL20U
D7 S3L20U
ZD3 HZ27-2
C20 120uF 450V
R48 100K
C31 0.1uF
50V
R50 100K
R87 1.5M
PC817XP3
19V
R53
10KF
IC2
TOP258PN
C22
0.1uF
50V
R46
12V
PC8
CONTR
OL
4
2
1
M
C
D
S
S
S
S
8
7
6
5
5V
11
13
7
8
5
15
14
12
10
9
4
3
2
TR1
R44
10
220
16
6
C25
0.01uF
50V
12V
275V
0.1uF
12PHR-N_S530612PHRN.indd 3
2013/8/7 15:42:00
Summary of Contents for 12PHR-N
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