22
MAIN BOARD
U
V
W
Y/G
L
L-PRO
T3
T4
CODE
PART NAME
COMPRESSOR
4-WAY VALVE
COMP
CAP1
EEV
ELECTRIC EXPANSION
VALVE
H-PRO
L-PRO
LOW PRESSURE SWITCH
HIGH PRESSURE SWITCH
T3
T4
CONDENSER
TEMPERATURE SENSOR
OUTDOOR AMBIENT
TEMPERATURE SENSOR
H-PRO
SV
L
PFC INDUCTOR
TS
DISCHARGE
TEMPERATURE SENSOR
RED
BLACK
V
U
CN
19
CN51
CN
55
W
EEV
BLACK
D
R
IV
ER
B
O
AR
D
RED
YELLOW
BLUE
P-1
FM1
OUTDOOR DC FAN
FAN MOTOR CAPACITOR
CN53
CN20
CN3
CN4
CN10
CN40
CN22
CN44
CN
8
CN
9
CN
7
CN2
CN1
CN5
CN54
CN52
CN33
5(6
)
CN6
SV
4-WAY1
BLUE
BLUE
HEAT2
HEAT1
BLACK
RED
BLUE
BLUE
BLUE
YELLOW
RED
BLACK
RED
BLACK
L2
TO INDOOR UNIT POWER SUPPLY
Y/G
2
L1
1
RED
RED
BLACK
YELLOW
S
BLACK
YELLOW
Crankcase Heater
Base Pan Heater
ON
LY
FO
R
36K
O
DU
L1 L2
FM1
Y/G
3
3
Y/G
COMP
3
Figure 39. 208/230V MLA024S4S-*P Outdoor Unit Wiring Diagram
