Midea MCH2U-18PHH2 User Manual

27
PCB board of MCH2U-18PHH2, MCH3U-27PHH2
S
N L
H
[1.4] 2015.08.27
1
P E Q
L-OUT
S N L
1
1
1
1
1
CE-KFR80W/BP2T4 N1(AC MOTOR)-310.JD.FW.WXWKB.WP1-1
1
2
15
16
RUN
1
1
1
17122300001076
R121
CN36 C N35 CN34
CN33
CN32
P2
P1
C81
R119
C80
C50
C2
_1
D18
D16
D10
CN201
AS1
R116
R115
R114
R113
R112
R111
R98
R43
Q8
Q7
Q6
Q5
CN30
CN18
RY2
CN8
N
CN5
N
CN9
HEAT2
CN2
N
CN6
HEAT1
CN1
4-WAY
SW1
CN15
T2B
CN27
PFC-CONTROL
CN26
TestPort
L1
L2
R110
R109
R108
R107
R106
R105
R104
R103
R97
R57
R56
R55
IC9
D28
D27
C79
C78
R77
DSP1
CN11
AC MOTOR
R46
+
E7
+
E8
+
E11
R12
C11
+
-
~
~
RY8
C77
C76
C75
C74
C73
C72
D1
C71
IC1
R87
IC15
D2
ZR3
ZR2
ZR1
RY7
RY6
RY4
RY3
RY1
R102
R101
R100
R99
R96
R95
R94
R93 R92
R91
R90
R89
R88
R86
R85 R84
R83
R82
R81
R80
R79
R78R76
R75
R74
R73
R72
R71
R70
R69 R68
R67
R66
R65
R63
R62
R61
R60
R59
R58
R54
R53
R52
R51
R50
R48
R47
R45
R44
R42
R41
R39
R38
R37
R36
R35
R34
R33
R32
R31
R30
R28
R27
R26
R25
R24
R23
R22
R21
R20
R19
R18
R17
R16
R15
R14
R13
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
Q4
Q3
Q2
Q1
PTC1
P-1
GND
IC16
IC14
IC11
IC3
FUSE2
T30A 250VAC
+ E13
+
E12
+
E10
+
E9
+
E6
+
E4
+
E2
+
E1
D19
D17
D13
D12
D11
D9
D8
D7
D6
D5
D4
D3
CT1
CONdebug1
CN25
S-A
CN24
D
CN23
S-B
CN22
C
CN21
TO-DRIVE
CN20
S-C
CN19
B
A
CN17
T3/T4
CN16
S-D
CN14
LOW/HIGH
CN13
FAN-C`
CN10
FAN-C
CN7
PAI QI
C59
C58
C57
C56
C55
C54
C53
C51
C49
C47
C46
C44
C43
C41
C40
C39
C38
C37
C35
C33
C32
C31
C30
C28
C26
C25
C24
C23
C22
C21
C20
C17
C16
C15 C14 C13
C12
C10
C9
C5
C4
C3
C1
D20
D15
C60
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
+
E14
+
E5
IC6
RY5
X1
IC17
C8
C7
C52
C48
C6
CN4
N-IN
CN29
N-OUT
CN28
CN12
CompTop
FUSE1
T5A 2 50VAC
R120
+
LED1
P-2
GND
CN3
L-IN
R117
R118
D33
D32
D31
R64
R49
R40
R29
IC13
IC12
IC10
IC8
IC7
IC5
IC4
IC2
C45 C36
C34
C29
C27
C19
C18
D34
C42
D14
CN4(N-IN)
power supply
208-230V AC
CN3(L-IN)
connect to the terminal
FUSE2
T30AL/250VAC
T5A 250VAC
FUSE1
CN9-CN8 ( controled by RY4 relayer)
connect to the heater
when heater is ON, output 208-230V AC
CN6-CN5 (co ntroled by RY3 relayer)
CN1-CN2 (controled by RY1 relayer)
connect to the 4-WAY
when 4-way is ON, output 208-230VAC
P-1(GND)
connec t to the earth
connect t o the Earth(Optional)
P-2(GND)
FOR EMC
P1
connect to P2
NO USE
CN20
CN23
CN25
CN16
CN30
connect to the terminal
24VDC Pul se wave bet weene (+CN4)-(-CN30)
Signal wire
NO USE
CN36
CN35
CN34
CN10
CN13
FAN-C
FAN-C`
NO USE
CN18
Connect to Electric Expansion Valve
1
2
3 4 5 6
+12V DC
+12V DC
+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
NO USENO USE
CN24 CN22
CN19
status light, by which you can judge the unit Normal or Error
LED1
(standby) Flashing once per second(low speed flashing)
(error) F lashing onc e per half second (high speed flashing)
(running) aways on
NO USE
CN21
connec t to IPM BOARD CN1
5 4 3
2
1
+12V
+5V
Low VO L supply
GND
(+4)-(-3) +5VDC Pulse wave
(+5)-(-3) +5VDC Pulse wave
CN27
room temp senso r RT
pipe temp sensor RT
CN17
Exaust temp sen sor RT
CN7
N-OUT
CN15
NO USE
NO USE
CN28
CN14
NO USE
CN12
L-OUT conne ct to IPM BOARD CN4
connect to IPM BOARD CN5
(L-OUT)-( N-OUT) 208-230V AC
(L-OUT)-( N-OUT) 208-230V AC
connect t o the compe rssor top temp. sensor
0V DC
NO USE
CN33 conn ect to DR module RED wire
(L-OUT)-( N-OUT) 208-230V AC
CN32 connect to DR module BLUE wire
NO USE
test port
connect to detector
CN26
connect t o DR module
or

Midea MCH2U-18PHH2 Specifications

General

Brand	Midea
Model	MCH2U-18PHH2
Category	Air Conditioner
Language	English