PCB Diagram and Parts List
5-1-17 Indoor Unit Power PCB
5
①
TB100 - POWER T/B
②
#1 : POWER CORD CONNECTION - L
#1 : EARTH (PBA – SET GND)
(L1)
#2 : POWER CORD CONNECTION -
N (L2)
TB300 - COMM. T/B
#1 : F1 – INDOOR/OUTDOOR
[CN81]
COMM.
#1, 3 : 12V
#2 : F2 – INDOOR/OUTDOOR
#2 : ERROR CHK (12V JUNCTION)
COMM.
#4 : COMP CHK (12V JUNCTION)
#3 : V1 – 12V
[CN83]
#4 : V2 - SGND
#1 : EXT_CTRL (5V)
#5 : F3 - WIRED REMOTE CONTROL
#2 : SGND
COMM.
#6 : F4 - WIRED REMOTE CONTROL
COMM.
5-50
6
4
CN101 - EARTH
CN100 – POWER TO MAIN CONNECTOR
3
③
CN900 - MAIN FAN MOTOR
[CN81]
#1 : 310V (DC LINK)
#2 : NC
#3 : PGND
#4 : 15V (VCC)
#5 : MAIN FAN MOTOR PWM
#6 : MAIN FAN MOTOR F/B
2
1
④
CN102 – THERMAL FUSE
#1 : FUSE SHORT/OPEN CHK
#2 : SGND
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