Lennox MLA030S4M-*P - Page 22

22
CO MP
FM 1
MAIN B OA RD
RED
B L A CK
U
V
W
Y/G
Y/G
L
L-PRO
T3
T4
H-PRO
Y/G
TP
V
U
CN19
CN51
CN55
W
EXV
BLACK
DRIVER BOARD
RED
7
7
YELLOW
BLUE
P-1
CN53
CN3
CN4
CN10
CN40
CN22
CN44
C N 8
C N9
CN7
C N 2
C N 1
CN5
CN54
CN52
CN33
CN6
SV
4-WAY
VALVE
BLUE
BLUE
HEAT_2
HEAT_1
BLACK
RED
BLUE
BLUE
BLUE
YELLOW
RED
BLACK
RED
BLACK
CN20
M
6
A
CN21
M
6
B
CN17
M
6
C
CN18
M
6
D
CN3 0
C N 2 9
C N 2 8
C N 2
7
CODE PART NAME
COMP RESSOR
HE AT _2
4-W AY VALVE
COMP
EXV
ELECTRIC EXPANSIO N
VALV E
H-PRO
L-PRO
LOW PRE SSURE SWIT CH
HIGH PRESSURE SWIT CH
T3
T4
OUTDOOR COIL
TEMPERATU RE SENSOR
OUTDOOR
TEMPERAT URE SENSOR
PAN HEAT ER
SV
L
PFC INDUCTOR
T2B
INDOOR COIL OUTLET
TEMPERAT URE SENSOR
TP
COMPRESSOR D ISCHARGE
TEMPERAT URE SENSOR
FM1
OUTDOOR DC FAN
PART NAMECODE
BLUE
BLUE
RDE
BLACK
BLACK
RDE
EXV
EXV
EXV
HE AT _1
CRANKCAS E HEAT ER
Figure 29. MPB036S4M-*P Outdoor Unit Wiring Diagram
DR IV ER B OA RD
CODE
PART NAME
COMPRESSOR
D
HE AT _1
CT1
AC CURRENT DETECTOR
4-WAY VALVE
COMP
EXV
ELECTRIC EXPANS ION
VALV E
H-PRO
L-PRO
LOW PRE SSURE SWIT CH
HIGH PRESSURE SWIT CH
T3
T4
OUTDOOR COIL
TEMPERATU RE SENSOR
OUTDOOR
TEMPERAT URE SENSOR
CRANKCAS E HEAT ER
DIODE MODULE
SV
L
PFC INDUCTOR
TP
COMPRESSOR DISCHA RGE
TEMP ERATURE SENS OR
MAIN BOARD
FM1, FM2
OUTDOOR DC FAN
L2
L1
XT 1
D
12
3
4
5
P5
CN37
FAN1
RED
CN4
CN2
CN3
CN1
CO MP
U
V
W
Y/G
CN6
CN9
10
3
CN1
CN2
L
YELLOW
YELLOW
U
V
W
BLUE
BLACK
RED
Y/G
XT 2
XT 3
P OW E R S UP PLY
CN29
CN21
CN16
CN13
RED
BLACK
BLACK
RED
BLACK
P9
CH1
CT1
FM 2
FM 1
Y/G
Y/G
DC MOT OR
DR IV ER B OA RD
CON1
FAN1
CN1
FAN2
3
3
P6
2
CN6
CN3
CN19
CN20
CN24
CN25
CN17
CN18
HEAT_2
HEAT_1
SV
4-WAY
VALVE
BLUE
BLUE
ORAN GE
ORA NGE
RED
BLACK
CH2
CH2
CH2
~
~
~
Y/G
Y/G
HEAT_2
PAN HEATER
T2B
INDOOR COIL
TEMPER ATUR E SENSOR
XT
TERMINAL STRIP
Figure 30. MPB048S4M-*P Outdoor Unit Wiring Diagram