Midea MEHSU-12PHH2 User Manual

9.2 Outdoor unit error display
For MCHSU-09PHH2, MCHSU-12PHH2 , MCHSU-18PHH2 ,
Suction
Exhaust
+
17122200000309
HuiQi
TestPort
1
1
HEAT
4-WAY
W
BLUE
BLACK
RED
V
U
TP
T3
T4
No
NO
NO
YES
Low-Fre
No
Have
YES
Have
Temp-Pro
Rdi
Ripm
11
PMV
44
15V17V
[V1.8] 2015-01-16
7815
22
1
34
REACTOR
311 TEST
7805
N-IN
DC-FAN
AC-FAN
L-IN
S
KFR-72 W/BP2- (311+ 0515+6 061HD+ PSS30S92F6-AG+6822+HEAT).D.13.WP2.1
12V 5V
CN3
DSA1
K
A
K
D5
R18
R46
R
1
0
7
A
R515A
R316A
R18A
IC403
D4
C21
R54 R55 R68
R69
R56
R90
C14
J4
R16
R52
J5
+
LED1
R78
R142
R141
R155
R154
R153
R152
R151
R150
C3
R108
R107
RC2
RC4
RC1
RC3
C1
FUSE1
65T 250V30A
ZR1
ZR2
CN30
R109
R58
R61
R60
R59
C301
C76
C312
R315
C83
C85
C86
C91
R156R158
R169
R170
R171 R172
IC34
D11
R157
R159
C310
C306
C308
C311
C307
C309
R110
E305
C302
+
DZ301
Q3
R75
R84
C103
CN28
CN29
CN6-1
CN6
CN13
CN12
CN2
CN8
CN7
CN22
DR
CN21
DR
R102
J6
PTC1
CN414
R127
C105
+
E5
IPM2
C501
C503
C507
C508
C509 C510
C511
C512
C517
+
DZ501
R501 R502
R503
R504 R505
R506
R509
R510
R511 R512 R513
R514
R523
C502
C505
+
DZ502
R515
R522
+
DZ504
C504
R316
~ ~
IN
AC
-
+
R101
R100
R71
C42
CN20
RY5
CN16
CN18
NTC4
C8
C513
C514
C515
C516
R516
R517
R518
R519
R520
R521
C27
IC7
24LC512
33
49
17
1
IC9
R53
IC101
R160
+
E4
+
E3
R83
R82R81
R80
R79
R50
C47
C20
R322
R321
R320
Q2
IC405
+
E10
R120
R167
R166
R32
+
E1
R12
+
LED3
R412
R413
R414
R415
Rdi
Ripm
R13
CN24
R72
R8
R87
R74
J3
IC17
+
E24
D2
R124
C2
J2
J1
C77
AC AC
+
-
BR1
C13
D3
R7
RY3
RY4
RY2
CN5
R23
R24
R25
R26
R27
C74
C75
RY1
+
E14
C9
C17
C18
C19
C23
C24
C26
C32
C33
C35
C36
C37
C39
C43
C48
C49
C52
C65C67
C78
C87
C89
C90
C92
C147
C153
C25
CN9
CN23
CN39
+
E17
+
E23
+
E28
IC8
24LC08
IC12
24LC08
IC14
+
LED2
OSC1
R5
R30
R31
R40
R41
R42
R48
R49
R62
R64
R65 R66
R70
R73
R76
R77
R86
R92
R97
R161
R162
R163
R164
R165
R176
R177
R419
X1
C58
+
+
E405
IC404
R45
Q1
C15
C22
R21
R22
R28
R29
R33
+
E22
R3
R4
R121
C5
+
E6
R10
C28
C4
CN38
IC10
C79
C80
D7
C6
R148
R63
C506
R507
R508
+
E11
R106
C73
IC21
PC817
IC31
PC817
R175
R178
C409
IC402
C403
IC11
+
E402
D401
C401
R403
C411
C40
C50
D403
R401
R405
R406 R404
+
E404
D402
D404
C408
C402
+
E403
R407
R408
C404
C110
+
E409
+
E401
R402
C405
10
9
7
6
5
4
3
1
T401
C406
C407
D13
D14
+
E406
+
E407
+
E408
+
E502
+
E503
+
E504
+
DZ503
CN25
R6
R9
CN60
IC406
IC407
C7
D1
R1
R137
IC2
PC851
IC1
PC817
R2
R126
R125
R123
R122
R119
R118
R117
R15
R14
C99
C98
C97
C96
C95
C94
C93
C66
D20
R17
CN17
CN10
CN1
C41
R38
C45
C44
R136
R135
R134
R104
D12
D10
C54
+
D8
D9
R57
R20
C242
C243C244
R89
E2
R67
C84
C10
C11
IC4
C12
C38
R34
R47
R88
IC32
R39
R35
R36
R19
+
DZ6
R37
C46
C51 C53
CN19
+
DZ2
+
E27
IC3
PC817
IC5
PC817
Q8
R43
R44
R85
R91
R93
R95
R96
R99
D15
R51
+
E410
+
E8
C60
C61
E302
E303
E304
C62
VN1
VP1
U
P
VUB
U+
W
V+
V
W+
U-
VVB
VWB
FO
W-
V-
NV
NW
NU
VNC
CIN
IPM1
+
DZ304
+
DZ303
+
DZ302
C314
C316
C318
C30
C34
C31
ZR3
ZR4
C82
L1
R11
R140
CN27
E301
R168
IGBT1
connect to the DR module
connect to earth
fuse 250V 30A
connect to reactance
290-330VDC standby
210-300VDC running
power supply 208-230V AC connect to the terminal
connect to 4-way val ve
when 4-way is on, output 208-230V AC
AC FAN mototr
connect to compressor heater
when heater is on, output 208-230V AC
1 low speed
2 hign speed
3 ground
external drive motor
connect to DC motor
0V AC standby
10~200V AC
’
running
U
V
W
connect to electric expansion valve
6 5 4 3 2 1
+12VDC
+12VDC
+12V DC pulse wave between( +4)-GND
+12V DC pulse wave between( +3)-GND
+12V DC pulse wave between( +2)-GND
+12V DC pulse wave between( +1)-GND
EEPROM Programmer Port
reserve
test port
Connect to PC
communication
V
U
W
connect to PC communication
test port
LED2
（
red
）
&LED3
（
green
）
: statu s light
combination LED2 and LED3 show errors
（
refer to the attechment Word
）
LED: status light
（
yellow
）
slow flicker
：
standby
（
0.5Hz
）
quick flicker
：
error
（
2Hz
）
conti nuous light: running
internal drive motor
6 5 4 3 1
rotate speed feedback signal 0-15V sq uare signal
drive power voltage: +15VDC
DC negative pole: GND
DC positive pole P: 315VDC
exhaust temp. sensor
pipe temp.sensor& room temp. sensor
TP T4 T3
7 6 5 4 3 2 1
RT
+5V DC
RT RT
+5V DC
+5V DC
CN5
/CN4 connect to
cha ssis
heater
when heater is on, output 208-230V AC
connect to DC motor
0V AC standby
10~200V AC
’
running
bridge
IGBT
fast recovery diode
(FRD)
IPM for compressor
IPM for DC FAN
reserve
P
N

Midea MEHSU-12PHH2 Specifications

General

Brand	Midea
Model	MEHSU-12PHH2
Category	Air Conditioner
Language	English