Wiring Diagram - Haier MRVIII-S AV08NMSETA Design, Installation & Maintenance Instruction

6. Wiring diagram

HPS Td Te1 Te2 Ts Ta
P
ACL
6.3A 250VAC
FUSE1
ACN
CN1 CN2 CN3 CN4 CN5 CN6 CN7
HEATER2
CN26
BM2
SV2
CN18
SV1
CN17
CONTROL BOARD
4WV
CN16
HEATER
SW3
CN25
SW4
ACFAN2
M
～
CA
W
B
Earth Wire
L1 L2 L3 N E
L1 L2 L3 N E
L1 L2 L3 N
R
<WARNING>
Please power off firstly for about 10
minutes before checking control box,
and make sure the voltage between
P and N below 20V.
<NOTES>
·Please check the power firstly before test , and make
sure the crankcase heater powering on for 12 hours
at least to protecting compressor.
·The switch BM1-1 is used for locking the indoor units
number, the initial situation is " OFF". After power on,
the display board will display 【U**】, "**" indicates
the number of Indoor units that the outdoor unit can
communicate with. If it can match the actual number
of indoor units, please change "OFF" to "ON", or else
fix the communication problem firstly.
·Forbid connecting the power wire to the "P" and "Q",
otherwise the control board will be damaged.
·Please make sure the earth wire connecting the ground-
ing hole on the electric box firmly.
Ps Pd Toil
CN29 CN28
CN21
BM1
LED4 LED2
CN9
CN20
CN8
CN24
SW1
SW2
LED3
CN10
M
CN11
LED1
DCFAN1
rectifier
W
R
W
B
B
W
Noise Filter
PQ
W BL B
<SYMBOL>
symbol
HEATER,2
SV1
SV2
4WV
ACFAN2
DCFAN1
HPS
Te1,2
CN30
EEV
M
Tfin
INV Board
B
P
N
W R1 R2
REACTOR
CB1 CB2
PTC
Y
Y
T3 L3
B
T2 L2
T1 L1
AC Contactor
symbol
Ts
Ta
signification
Pd
Crankcase
heater
Ps
Unloading valve
Toil
Spay valve
EEV
4-way valve
CA
Capacitor
Tfin
AC fan motor
DC fan motor
CB1,2
High pressure
switch R
Discharging
Td W
temp. sensor
B L
Defrost
B
temperature
Y
sensor
8
0150513195
LD1 LD2 LD3
CN32
LED
CN31
DISPLAY
CN30
SW01 SW02
CN2
CN3
CN1
CN7 CN8
U V W
R
W B
COMP
signification
Suction temperature
sensor
Ambient
temperature
sensor
High pressure sensor
Low pressure sensor
Oil temperature sensor
Electronic expansion
valve
IPM temperature
sensor
Electrolytic capacitor
Red
White
Blue
Black
Yellow