Lennox MCA Series

15
Wiring Diagrams (Outdoor Units)
BROWN
3
2
L1
L2
BLACK
1
Y/G
AMBIENT TEMP. SENSOR
CONDENSER TEMP SENS OR.
Y/G
Y/G
Y/G
U
V
W
BLUE
RED
BLACK
Y/G
Y/G
Indoor Unit
T5
T3
T4
Figure 29. 09 and 12K - 208/230VAC Outdoor Unit Wiring Diagram
COMPRESSOR
Y/G
DC-FAN
CN 7
3
B LUE
B R OWN
BLACK
3
2
L
N
R E D
B LUE
Y/G
1
Y/G
AMBIENT TEMP. SENSOR
DIS CHAR G E TEMP. SENS OR
CN 21
.
Y/G
Y/G
Y/G
CN4_1
CN4_2
CN4_3
CN4_4
REACTOR
CAPACITOR
BROWN
BROWN
BLACK
BLACK
BLACK
W
V
RED
BLUE
U
CN 1A
CN 3
CN 1
CN 2
CN 16
CN 50
CN 30
CN 29
CN 28
OUTDOOR
MAIN
PCB
T5 T3 T4
Figure 30. 12K - 115VAC Outdoor Unit Wiring Diagram