Haier AU482FIBHA Service Manual page 51

a. Unit number setting of outdoor unit
nit number setting switch of outdoor unit and confirming of setting.
U
4-digit number setting dialing switch and corresponding nixie tube confirming display are
equipped on the outdoor unit.
Setting mode as follows:
Before electrifying, manually set the outdoor unit number according the following table. After
electrifying, the nixie tube displays letter " P" .
After the setting contents are locked, the nixie tube will steadily display the outdoor unit
number. (lock setting shall be done after finishing setting of the indoor and outdoor unit
number).
b. Table of relation between dialing switch and outdoor unit number
Digit 1
0
Bit 123 Preelected number
000
1
001 2
010 3
4
011
5
100
6
101
7
110
8
111
c. Setting of indoor unit number
After installation or after adding new indoor units, when electrifying for the first time, it is
necessary to set unit number to the indoor units (note: the cabinet type indoor unit has been set
to be No. 3 unit, it is unnecessary to reset unit number to it. At the same time, it is forbidden
to set other units as No. 3 unit). Before electrifying, the lock button of the dialing switch shall
be at locked state. After electrifying:
l When indoor unit number is not set, the power light, operation light and timer light will
flash together waiting for receiving unit number.
l When indoor unit switches from one system to another system, because of the conflict
between the existed control address and the address auto set by outdoor unit to indoor
unit, the phenomenon of power light, operation light and timer light flashing together will
(now it is unuseful)
Digit 2
0
Confirmed number after electrified
1
2
3
4
5
6
7
8
Digit 3 Unit number stood for
0
: 0
: 1
1