Service manual

0 0 0 1
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
Digit 1 Digit 2 Digit 3 Unit number stood for
a. Table of relation between dialing switch and outdoor unit number
b. Setting of indoor unit number
: 0
: 1
Bit 123
000
001
010
011
100
101
110
111
Preelected number
1
2
3
4
5
6
7
8
Confirmed number after electrified
1
2
3
4
5
6
7
8
appear.
When using special remote controller to do unit number setting, it shall be done at a place
1m away from the infrared receiver window. The specific setting method as follows:
press the number button according to the unit number to be set, then press set button to
send signal.
When indoor unit receives the signals from the special remote controller, the buzzer will
give a “ Pi” sound, the flash of power light, operation light and timer light will stop
together, it indicates the indoor unit has received the signal. The set unit number can be
confirmed by using the “ checking” function of special remote controller. The power light
of indoor unit will flash the set unit number (for example: the set unit number is 5, after
pressing “ checking” button, the power light will flash 5 times).