Haier AB242ACBEA Service Manual page 106

Commercial air conditioning 24 28 universal outdoor unit air conditioning
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0010451167 PCB information – function selection(ON is 1, OFF is 0)
The standard condition for PCB in factory
SW1:4 bits are OFF
SW2:4 bits are OFF
SW3:4 bits are ON
SW4:2 bits are ON
SW5:4 bits are ON
SW1-SW2: used for indoor unit to set unit address from 1 to 16'
SW3-SW5: used for indoor unit to select different functions.(every dip switches are corresponding to
J1-J10.
SW2-4——logistic relationship of control function(door card control and remote/ wired control)0
means logistic relationship is "and", 1 means the later coming is preferential.
J1,SW3-1——function selection-control type: 1 means remote control, 0 means wired control.
J2,SW3-2——function selection-temperature compensation in heating mode: 1means "yes", 0means
"no".
J3,SW3-3——function selection-outdoor communication: 1means "yes", 0means "no". This PCB
must be 1.
J4,SW3-4——function selection-heat pump unit: 1means "heat pump", 0means "cooling only".
1/60——test in short circuit, but in operation short circuit mustn't be permitted.
CHECK——short spring switch control, it also can be used as switch of convertible type except for
testing.
J5,SW4-1——function selection-elevating function: 1means "yes", 0means "no".
J6,SW4-2——function selection –health function: 1means common (indoor fan motor running); 0
means special (indoor, outdoor running).
J7,SW5-1——function selection –swing mode: 1 means common(simultaneous motor), 0 means
special (swing motor).
J8,SW5-2——function selection – system combination: 1means fixed frequency single unit, 0 means
fixed frequency multi split.
J9,SW5-3——function selection –group control: 1 stands for the master unit (its address in wired
controller is 0), 0 stands for the slave units (the address should be set by the dip switch, their addresses
only can be in the range: 1~15)
J10,SW5-4——function selection –preset: 1 no meaning, 0 no meaning

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