Haier AB072MRERA Service Manual page 586

LED light introduction:
• LED1, LED2: communication lamp between indoor unit and wired controller.
These two lamps flicker alternately under normal condition; once occurs the communication faulty, these
two lamps will light or not light at the same time.
• LED3, LED4: communication lamp between indoor unit and outdoor unit.
These two lamps flicker alternately under normal condition; once occurs the communication faulty, these
two lamps will light or not light at the same time.
• LED5: malfunction lamp of indoor unit.
This lamp not light under normal condition; once indoor unit occurs malfunction this lamp will flicker, flicker
times indicate the corresponding failure code.
• LED7: forced-open lamp for indoor electronic expansion valve.
This lamp not light under normal condition; during adjusting the electronic expansion valve by hand this lamp
will flicker.
Dip switch introduction
SW01 is used for indoor unit group control address setting and capacity selection. CN44, CN42, CN43 are
used for indoor unit type selection. CN41 is used for address setting by wired controller. SW03 is used for
indoor unit address setting (including physical address and central address). SW07 is used for running mode
setting.
(1) Description of SW01
SW01_1
SW01_2
Wired control address
SW01_3
SW01_4
SW01_5
SW01_6 Indoor unit
SW01_7 capacity
SW01_8
[1] [2] [3] [4]
OFF OFF OFF OFF
OFF OFF OFF ON
OFF OFF ON OFF
OFF OFF ON ON
... ... ... ...
ON ON ON ON
[5] [6] [7] [8]
OFF OFF OFF OFF
OFF OFF OFF ON
OFF OFF ON OFF
OFF OFF ON ON
OFF ON OFF OFF
OFF ON OFF ON
OFF ON ON OFF
OFF ON ON ON
ON OFF OFF OFF
ON OFF OFF ON
ON OFF ON OFF
ON OFF ON ON
ON ON OFF OFF
ON ON OFF ON
ON ON ON OFF
ON ON ON ON
578
Wired control address
Master unit in group control
Slave unit 1 in group control
Slave unit 2 in group control
Slave unit 3 in group control
......
Slave unit 15 in group control
Indoor unit capacity
0.6HP
0.8HP
1.0HP
1.2HP
1.5HP
1.7HP
2.0HP
2.5HP
3.0HP
3.2HP
4.0HP
5.0HP
6.0HP
8.0HP
10.0HP
15.0HP