Haier AB072XCBAA, Service Manual, Page: 44 / 181

Electrical functions of wired controller:
1.Function difference between master wired controller and slave one:
Contrastive items Master wired controller Slave wired controller
Function All of functions Only with below functions:
ON/OFF, MODE, FAN SPEED,
SET TEMP., SWING
2. Function difference between simple wired controller and the standard one:
Contrastive item Standard wired controller Simple wired controller
Function With all functions Only can control ON/OFF, MODE,
FAN, TEMP.,SWING.
Master/Slave
selection Can be either of Master
and Slave controller Only can be Master controller
3. Wiring connections of wired controller:
indoor N
B A C
wired controller
indoor 1 indoor 2
indoor 1
2 1 3
A B C A B C
indoor 16
control wiring of wired controller, polar.
indoor 15
1 2 3
A B C
wired controller wired controller wired controller
wired controller wired controller
wired controller
wired controller
indoor 1
wired controller
wired controller
wired controller
A
B
C
(master unit)
polar wire
polar wire
polar wire
There are three methods to connection wired controller and the indoor units:
A. One wired controller can control max. up to 16 sets of indoor units, and 3
pieces of polar wire must connect the wired controller and the master unit (the
indoor unit connected with wired controller directly), the others connect with
the master unit through 2 pieces of polar wire.
B. One wired controller controls one indoor unit, and the indoor unit connects
with the wired controller through 3 pieces of polar wire.
C. Two wired controllers control one indoor unit. The wired controller
>a__WcU[S^ <[c >a`V[e[a`Wc
-44-