Lennox MLA030S4M Service Manual

66
DR IV ER B OA RD
CODE
PART NAME
COMPRESSOR
D
HEAT _1
CT1
AC CURRENT DETECTOR
4-WAY VALVE
COMP
EXV
ELECTRIC EXPANS IO 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
CRANKCAS E HEATER
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 OWE R S UP P LY
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 28. MPB048S4M-*P Outdoor Unit Wiring Diagram
11.4. MLA Multi-Zone
D R IV E R B O A R D
GN D
P-1
SV
4 WAY
VALVE
HE AT _2
PAN
HE AT ER
HE AT _1
CR AN KC AS E
HE AT ER
E X V
INDOOR COIL OUTLET TEMP SENSOR
E X V
OUTDOOR TEMP SENSOR
OUTDOOR TEMP SENSOR
COMPRESSOR DISCHARGE
TEMP SENSOR
INDUCTOR 2R0509A
INDUCTOR
1R25027
Figure 29. MLA018S4M-1P Outdoor Unit Wiring Diagram

Lennox MLA030S4M Specifications

General

Brand	Lennox
Model	MLA030S4M
Category	Air Conditioner
Language	English