Installation manual

[ III Outdoor Unit Components ]
- 54 -
HWE10040 GB
[3] Outdoor Unit Circuit Board
1. Outdoor unit control board
CN332
Output 18VDC
GND
(
Fan board )
LED2
Lit during normal
CPU operation
CN72
72C
driving output
Serial communication signal input
GND (
INV board)
Output 17VDC
CN801
Pressure switch
connection
CN4
GND
Serial communication signal output
LEV
driving output
LED1
Service LED
SWU1,2
Address switch
SW1-5
Dip
switch
Sensor
input
CNVCC2
Output 12VDC
Output 5VDC
GND
CNIT
Output 12VDC
GND
Output 5VDC
Power supply detection input
Power supply ON/OFF signal output
CNS2
Transmission line input/output
for centralized control system (30VDC)
CN41
Power supply for
centralized control OFF
CN40
Power supply for
centralized control ON
CN102
Indoor/outdoor transmission line input/output (30VDC)
Power supply input for centralized control system (30VDC)
External signal input (contact input)
F01
Fuse
250V AC/3.15A
CNAC
L1
N
LED3
Lit
when powered
LED3
Lit
when powered
Actuator
driving output
Output 12VDC
Compressor
ON/OFF output
Error output
CN51
CNAC2
L1
N
CNDC
Bus voltage input
P
N
CN2