Lennox MPA018S4M-*P Installation Instructions Manual page 20

COMP
DRIVER BOARD
YELLOW
CODE
COMP
H-PRO
HIGH PRESSURE SWITCH
ELECTRIC EXPANSIVE
EEV
VALVE
FM1 OUTDOOR DC FAN
CRANKCASE HEATER
HEAT_Y
HEAT_D
PAN HEATER
BLACK
Ferrite bead
CH3
CN15 CN14
BLUE
RED
RED
CN3
CN9
CN55
CN39
DCFAN2
COMP
BLACK
RED
BLUE
7
W
BLACK
V
RED
U
BLUE
RED
CN54
BLUE
CN51
BLACK
CN53
BLUE
CN52
YELLOW
L
PART NAME CODE PART NAME
L PFC INDUCTOR
COMPRESSOR
LOW PRESSURE SWITCH
L-PRO
COMPRESSOR
T5
DISCHARGE TEMP.
4-WAY VALVE
SV
CONDENSER
T3
TEMPERATURE SENSOR
OUTDOOR AMBIENT
T4
TEMPERATURE SENSOR
Figure 25. MPA036S4M-*P Outdoor Unit Wiring Diagram
D
RED
CN4
CH2
RED
CN8
CT1
CN6
Ferrite bead CH1 CN39
5
7
Ferrite bead
CN7
5
CN11
5
DCFAN1
BLUE
SV
4- W AY
C N 1 8
BLUE
HEA T_Y
C N 2 5
HEA T_D
C N 2 0
Figure 26. MPA048S4M-*P Outdoor Unit Wiring Diagram
SV
4-WAY1
CN3
BLUE
BLUE
ORANGE
CN4
HEAT_Y CN10
CN22
ORANGE
CN40
ORANGE
CN44
HEAT_D
ORANGE
T3
T4
H-PRO
BLACK
L-PRO
RED
7
Y/G
YELLOW
L
YELLOW
P-6
CN3
CN2
CN1
CN5
P-4
P-5
CN6
E
CN13
D
CN16
C
MAIN BOARD CN21
B
CN29
A
CN37
C N 1 7
C N 2 4
C N 1 9
6
6 6 6 6
20
TP
FM1
CN12 CN11
6
A CN20
6
B CN21
CN33
6
C CN17
6
D CN18
indoor coil
outlet temp.
sensor
CN5
CN6
P-1
Y/G
CODE
COMP
CT1
DCFAN1,DCFAN2
HEAT_Y
HEAT_D
H-PRO
L
L-PRO
3
SV
3
T5
3 T3
T4
3
3
M
M
EEV
M
M
PART NAME
COMPRESSOR
AC CURRENT DETECTOR
D DIODE MODULE
OUTDOOR DC FAN
CRANKCASE HEATER
PAN HEATER
HIGH PRESSURE SWITCH
PFC INDUCTOR
LOW PRESSURE SWITCH
4-WAY VALVE
DISCHARGE
TEMP. SENSOR
OUTDOOR COIL
TEMP. SENSOR
OUTDOOR TEMP. SENSOR