Multi-Zone Technical Overview

ENGLISH
Alert!
Ensure
do
any of
the
operating
during
power off
For wired controller connect
with cassette
(
AB**SC2VH
*)
Step 1:
The wiring connection between wired controller - the master unit (directly connected to the wired controller), master
unit - slave unit, slave unit-slave unit should be one to one match of all three lines.
The connection wiring is as following, and max. Quantity of the connected indoor units is 16.
Note:
1)
Shielded lays of the communication line should be connected as a daisy chain from the first master unit to
the last slave unit.
2)
The shielding lay of the communication line must be grounded at the end of the last slave unit.
Step 2
Setting the dip switch BM3, and the indoor unit should be set according to the following table:
BM3
INDOOR CASSETTE UNIT
Connection method for one wired controller with multiple Cassette
TESTING
PAGE 56