~
L1 L2 L3 N E
Noise Filter
L1 L2 L3 N E
~
~
~
+
-
1
2
3
5
4
T1
T2
T3
L1
L2
L3
L1 L2 L3 N PQ
COMP
015051319
5
CONTROL BOARD
LED
DISPLAY
INV Board
P
+
+
-
-
HEATER2
ACL
HEATER,2
SV1
SV2
4WV
CA
ACFAN2
DCFAN1
HPS Td Te1 Te2 Ts Ta
Ps Pd Toil
Tfin
ACN
BM1
BM2
CN26
CN1 CN2 CN3 CN4 CN5 CN6 CN7
LED4
LED3
LED1
LED2
P
CB1
R1 R2
CB2
PTC
rectifier
symbol
signification
symbol
signification
AC Contactor
REACTOR
N
U V W
CN29 CN28
CN21
CN32
CN31
CN30
CN2
CN3
CN1
CN7
CN8
SW01
LD1 LD2 LD3
SW02
CN20
CN24
CN10
CN11
CN9
CN8
EEV
CN30
6.3A 250VAC
FUSE1
CN18
CN17
CN16
CN25
ACFAN2
SW1
SW3
SW4
DCFAN1
SW2
HEATER
4WV
M
M
SV1
SV2
O
N
1
2
3
4
5
6
7
8
O
N
1
2
3
4
5
6
7
8
CA
M
<WARNING>
<SYMBOL>
<NOTES>
Please power off firstly for about 10
minutes before checking control box,
and make sure the voltage between
P and N below 20V.
·
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.
HPS
Td
T
e
1,2
Ts
Ta
Pd
Ps
Toil
EEV
Tfin
CB1,2
R
W
B L
B
Y
Earth Wire
R
R
R
W
W
W
W
W
W
Y
Y
B
B
B
B
B
B
W BL B
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
Defrost
temperature
sensor
High pressure
switch
DC fan motor
AC fan motor
Capacitor
4-way valve
Spay valve
Unloading valve
Crankcase
heater
Discharging
temp. sensor
6. Wiring diagram
8