8
INSTALLATION INSTRUCTION
ENGLISH
To supply power to the central controller, supply it from the terminal block DC 10V and GND ter-
minal of PI485 or the terminal block DC 12V and GND of outdoor unit.
ON
L1 2 3 4
KSDO4H
PI485
Multi V
AC Ez
PI485
VCC
10V
GND
GND
BUS-A
BUS-A
BUS-B
BUS-B
AC Ez
Multi V
VCC
12V
GND
GND
BUS-A
BUS-A
BUS-B
BUS-B
Method to Connect cable
• For supplying DC10V power from PI485, power supply is permitted up to 1 central con-
trollers per PI485. If power is supplied more than 1 AC Ez, failure may occur in operation
of the AC Ez.
• For expanding and connecting PI485 communication lines BUS_A, BUS_B up to 16 AC
Ezs can be connected.
• Use the 0.75 Square Shield wires for connection wires between PI485 and AC Ez wires.
• Length of whole connection wires should be less than 1km.
CAUTION
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1,MFL69157009,영어 2017. 9. 20. 오후 7:32 페이지 8