Trane 4TXK6512G1000AA, Service Manual, Page: 49 / 187

38
To indoor unit
1
1 2
B L
2 3
B R R
B M 1 :
O N
1
Power supply
O N
2
Y / G
Y / G
Y / G
CN10
CN3
4 V W
CIRCUIT DIAGRAM OF OUTDOOR UNIT
CN1
C N 2
C N 4
P E
250VAC T25A
FUSE1
250VAC T3.15A
F U S E 2
DC FAN
MOTOR
CN21
M
B
M1
1
2
MAIN PCB BOARD
PMV
CN16
M
M
CN7 CN6
TQ CS HW
CN20
CN4’
CN3’
CN2’
CN18
X Q
U
V
W
*Dashed part is optional
XQ: Compressor Suction Temp. Sensor
HW: Ambient Temp. Sensor
TQ: Compressor Discharge Temp. Sensor
CS: Defrosting Temp. Sensor
OR: Orange B: Black BL:Blue
BRN:brown Y/G: Yellow/Green
R: Red W:white
COMPRESSOR
R W B
V
W U
0150538190
4
.8
4
T
X
K
6
5
1
8
G
1
0
0
0
A
A