Filter
Top Products
[ III Outdoor Unit Components ]
- 60 -
HWE09120 GB
(3) PUHY-P72, P96, P120, P144YJMU-A
1) Before inspecting the inside of the control box, turn off the power, keep the unit off for at least 10 minutes, and confirm that
the voltage between FT-P and FT-N on INV Board has dropped to DC20V or less.
(It takes about 10 minutes to discharge electricity after the power supply is turned off.)
SC-L1
Input(L1)
SC-L2
Input(L2)
SC-L3
Input(L3)
IGBT
(Rear)
Bus voltage check
terminal (P)
Note
Bus voltage check
terminal (N)
Note 1
SC-P2
Bus voltage Input(P)
SC-P1
Rectifier diode output (P)
LED1
Lit: Inverter in normal operation
Blink: Inverter error
CN6
Open: No-load operation setting
Short-circuited: Normal setting
CN5V
GND
5VDC output
RSH1
Overcurrent detection
resistor
CN4
GND
(Fan Board)
Serial communication
signal output
CN2
S
erial communication
signal output
GND
17VDC input
SC-V
Inverter output(V)
CNTYP Inverter
board type
SC-W
Inverter output(W)
SC-U
Inverter output(U)
CT22
Current sensor(W)
CT12
Current sensor(U)
C30 C37
Smoothing capacitor
CN1
Bus voltage output
N
P
CT3
Current sensor(L3)