Lennox MPA024S4S-*P Installation Instructions Manual page 20

CODE PART NAME
COMPRESSOR
COMP
CT1 AC CURRENT DETECTOR
D DIODE MODULE
DCFAN1,DCFAN2 OUTDOOR DC FAN
HEAT_Y CRANKCASE HEATER
HEAT_D PAN HEATER
H-PRO
HIGH PRESSURE SWITCH
L PFC INDUCTOR
L-PRO LOW PRESSURE SWITCH
SV 4-WAY VALVE
DISCHARGE
T5
TEMP. SENSOR
OUTDOOR COIL
T3
TEMP. SENSOR
OUTDOOR TEMP. SENSOR
T4
TH HEATSINK TEMP. SENSOR
Figure 35. 208/230V MPA048S4S-*P Outdoor Unit Wiring Diagram
Figure 36. 208/230V MPB018S4S-*P and MPB024S4S-*P Outdoor Unit Wiring Diagram
Compressor and Outdoor
Fan Control Board
BLACK
CN15 CN14
BLUE
RED
RED
CN3
CN9
CN55
CN39
DCFAN2
COMP
D
RED
RED
CT1
CN8 CN4
CN6 CN39
5
7
CN7
5
CN11
5
DCFAN1
BLUE
SV
4-WAY
CN18
BLUE
HEAT_Y
CN25
HEAT_D
CN20
20
YELLOW
L
Y/G
YELLOW
P-6
CN3
CN2
CN1
CN5
CH5
CN6
CN22
MAIN BOARD
CN17
CN24
CN19
6
TH
Y/G
Y/G
2
XT2
S1 S2
TO INDOOR COMM. BUS
NOTE： Please use 2-core
shielded wire.