Haier AB242ACBEA Service Manual page 107

Control type selection between remote and wired: select by dip switch J1, SW3-1 （1 means remote control；
0means wired control）.
For remote control type, please use remote controller YR-H71, and a remote receiver is equipped with
indoor unit. For wired control type, wired controller YR-E12 will be used, 3-core shied wire is equipped with
indoor unit.
Door card control: controls ON/OFF, the start up setting will comply with last time request memorized
according to condition memorize function. Its difference with emergency switch of convertible type unit lies:
the emergency switch control will perform in the condition: 24degrees, auto fan speed in auto mode.
The function combination between door card and remote/wired control type: select by dip switch: SW2-4（0
means "and", 1 means later coming is preferential.）
Dip switch position in wired control type: Only one indoor unit of all indoor units connected with wired
controller is the master unit, whose address is 0, function selection switch （J9， SW5-3） is 1. The others are
slave units, and the quantity can be 0~15, whose addresses are（SW1:1~4）from 1 ~15, and cannot
repeat.
Wiring request in wired control type: the wired controller ports A-B-C are connected with indoor port CN5
（1-2-3） through 3-core shield wire. Requirements:
1. Port A only connects with either of indoor port CN5（1）
2. Port B connects with port CN5 (2) of all indoor units.
3. Port C connects with port CN5 (3) of all indoor units.
Dip switch position in central control type: the addresses （SW1:1~4；SW2:1~4）of indoor units connected
with central controller can not repeat. In principle, they should be in the order from small to big.
Wiring request in central control type: port A-B is connected with indoor port CN16（A-B）through 2-core
shield wire. Requirements:
1. Port A connects with port CN16（A）of all indoor units.
2. Port B connects with port CN16（B）of all indoor units.
When only use remote control type, please select remote control unit, and install according to installation
manual, there is no other special request.
When only use wired control type, please select wired control unit, and install according to installation
manual. When control multi indoor units, take care the requirements of dip switch and wiring, there is no
other special request.
When only use central control type, please firstly install according to air conditioner requests and set the
dipswitch, there is no other special request.
When central control type（128×）and remote control type are used simultaneously, set the dip switch
according to central control type, there is no other special request.
When central control type （128×） and wired control type （16×） are used simultaneously, max. indoor
0010451167 PCB information- control type