Lennox MPA018S4M-*P

20
COMP
FM1
MAIN BOARD
RED
BLACK
U
V
W
Y/G
Y/G
L
L-PRO
T3
T4
H-PRO
TP
V
U
CN7
CN51
CN55
W
EEV
BLACK
DRIVER BOARD
RED
7
7
YELLOW
BLUE
P-1
CN53
CN3
CN4
CN10
CN40
CN22
CN44
CN8
CN9
CN7
CN2
CN1
CN5
CN54
CN52
CN33
ORANGE
ORANGE
CN6
SV
4-WAY1
BLUE
BLUE
HEAT_D
HEAT_Y
ORANGE
ORANGE
CN12 CN11
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
CN30
CN29
CN28
CN27
CODE PART NAME
COMPRESSOR
HEAT_D
4-WAY VALVE
COMP
EEV
ELECTRIC EXPANSIVE
VALVE
CRANKCASE HEATER
HEAT_Y
H-PRO
L-PRO
LOW PRESSURE SWITCH
HIGH PRESSURE SWITCH
T3
T4
CONDENSER
TEMPERATURE SENSOR
OUTDOOR AMBIENT
TEMPERATURE SENSOR
PAN HEATER
SV
L
PFC INDUCTOR
T5
COMPRESSOR
DISCHARGE TEMP.
FM1
OUTDOOR DC FAN
PART NAMECODE
indoor coil
outlet temp.
sensor
Figure 25. MPA036S4M-*P Outdoor Unit Wiring Diagram
IPM & PFC BOARD
CODE
PART NAME
COMPRESSOR
D
HEAT_Y
CT1
AC CURRENT DETECTOR
4-WAY VALVE
COMP
DCFAN1,DCFAN2
H-PRO
L-PRO
LOW PRESSURE SWITCH
HIGH PRESSURE SWITCH
T3
T4
CRANKCASE HEATER
DIODE MODULE
SV
L
PFC INDUCTOR
T5
MAIN BOARD
OUTDOOR DC FAN
2L
1L
XT1
T2B-A B C D E
CN13
E D B A
INDOOR COIL
OUTLET TEMP.
SENSOR
C
ELECTRONIC
EXPANSION
VALVE E
CN30
CN26
CN33
E
D C
ELECTRONIC
EXPANSION
VALVE D
ELECTRONIC
EXPANSION
VALVE C
CN23
B
ELECTRONIC
EXPANSION
VALVE B
CN15
A
ELECTRONIC
EXPANSION
VALVE A
CN8
T5
01NC
RED
YELLOW
L-PRO
H-PRO
9NC
T4
T3
D
12
3
4
5
P-6
C N 1 9
CN7
C N 2 0
CN55
C N 2 4
CN11
C N 2 5
CN37
C N 1 7
CN39
C N 1 8
HEA T_D
HEA T_Y
SV
4- W AY
BLUE
BLUE
RED
BLUE
CN4
CN2
CN3
CN1
COMP
U
V
W
Y/G
DCFAN2
DCFAN1
5
5
CN6
CN5
CN8
CN15
CN9
CN14
7
5
CN6
CN3
L
YELLOW
YELLOW
U
V
W
BLUE
BLACK
RED
Y/G
XT2
XT3
LPPUS REWOP Y
1(A)
2(A)
3(A)
1(B)
2(B)
3(B)
1(C)
2(C)
3(C)
1(D)
2(D)
3(D)
1(E)
2(E)
3(E)
TO A
TO B
TO D
TO E
TO C
BROWN
BLUE
BLACK
BROWN
BLUE
BLACK
BROWN
BLUE
BLACK
BROWN
BLUE
BLACK
BROWN
BLUE
BLACK
CN29
CN21
CN16
CN13
CN39
A
B
C
E
D
WHITE
BLACK
BLACK
BLACK
RED
BLACK
RED
BLACK
P-5
P-4
Ferrite bead
CH1
Ferrite bead
CH2
Ferrite bead
CH3
CT1
PAN HEATER
HEAT_D
6
6
6
6
6
3
3
3
3
3
OUTDOOR COIL
TEMP. SENSOR
OUTDOOR TEMP. SENSOR
DISCHARGE
TEMP. SENSOR
Figure 26. MPA048S4M-*P Outdoor Unit Wiring Diagram