Carrier 38MAQB24-3 - Wiring Diagram for 9 K and 12 K 208;230 V

11
WIRING DIAGRAMS (CONTINUED)
%/8(
CN2
NW
O
R
B
CN16
CN1
CN26
OPTIONAL:
:$<
DC-FAN
CN29
REACTOR
CN9-1
CN32-1
AMBIENT SENSOR
CN7
DISC
HARGE SENSOR
CN27
YELLOW
:
$<
WHITE
COMPRESSOR
BLUE
RED
BLACK
CN28
CN30
WHITE
Y/G
CN3
CN33
(/(&7521,&
(;3$16,9(
9$/9(

CN31
&21'(16(5
7(03(5$785(6(1625
CN21
CN22

HEATER, CRANKCASE
HEATER, CRANKCASE
Y/G
RED
BLUE
L2
GND
Y/G
Power Input
S
L2
L1
L2
L1
L1
L2
L1
S
Fig. 8 – Wiring Diagram for 9K & 12K 208/230V
Table 9—Outdoor Unit Control Board
CODE INPUT or OUTPUT VALUE
CN31 Output: Pin 5&6 (12V) Pin 1-Pin 4:Pulse waveform, (0-12V)
CN21 Input: Pin3-4 (3.3V) Pin 2 (0V),Pin 1,Pin 5 (0-3.3V)
CN22 Input: Pin1 (3.3V) Pin 2 (0-3.3V)
CN37 Output: 230 VAC High voltage
CN9-1,CN32-1 Output: Connection of the high voltage
CN1 Input: 230 VAC High voltage
CN2 Input: 230 VAC High voltage
CN3 Connection to the earth
CN16 Output: Connection of the high voltage
CN26,CN27 Output: High voltage for 4-way control
CN7 Output: Pulse (0-320 VDC) for DC FAN
U V W Output: Pulse (0-320 VDC) for COMPRESSOR