Lennox MLA030S4M Service Manual

61
DR IV ER B OA RD
CODE
PART NAME
COMPRESSOR
D
HEAT 1
CT1
AC CURRENT DETECTOR
4-WAY VALVE
COMP
EXV
ELECTRIC EXPANSIO N
VALV E
H-PRO
L-PRO
LOW PRESSURE SWIT CH
HIGH PRE SSURE SWIT CH
T3
T4
OUTDOOR COIL
TEMPERATU RE SENSOR
OUTDOOR
TEMPERAT URE SENSOR
CRANKCAS E HEAT ER
DIODE MODULE
SV
L
PFC INDUCTOR
TH
HEATSINK
TEMPERAT URE SENSOR
T5
COM PRES SOR DISC HARG E
TEMP ERA TURE SENSOR
MAIN BOARD
FM1,FM2
OUTDOOR DC FAN
EX V
O
UT D
O
OR T
E
M
P . S E
NS
OR
O
UT DO OR C O
LI T E M
P .
S E NS OR
D
12
3
4
5
P5
CN19
CN20
CN24
CN25
CN17
FAN1
CN18
HEAT1
HEAT2
SV
4-WAY
VALVE
BLUE
RED
BLUE
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
RED/WIHTE
BLACK
RED
BLACK
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
Y/G
BLACK
TO INDOOR COMM. BUS
XT 2
YE LL OW
GR A Y
S1
S2
NOTE: PLEASE USE 2-CORE
SHIELDED WIRE
L2
L1
MAIN POWE R SUPPLY
XT1
TO INDOOR UNIT
L1
Y/G
XT2
1
L2
1
L2
1
NL
N
L
P9
P7
P8
CN22
RED
BLUE/BLACK
ORAN GE
ORA NGE
RED
BLACK
CH2
CH2
CH2
~
~
~
C
OM PR E S S
OR D SI C HAR G E
T
E
MP
.
S
E NS OR
HEAT 2
PAN HEAT ER
Figure 18. 208/230V MPB048S4S-*P Outdoor Unit Wiring Diagram
11.2. MLA Single-Zone
Figure 19. 208/230V MLA012 and 018S4S-1P Outdoor Unit Wiring Diagram

Lennox MLA030S4M Specifications

General

Brand	Lennox
Model	MLA030S4M
Category	Air Conditioner
Language	English