Haier HCFU-42CF03 Service Manual page 52

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-outdoor pressure switch control function(if outdoor is without PCB):
1means the pressure switch is invalid, 0 means the pressure switch is valid.
J6 SW4-2 function selection –outdoor defrosting temp. sensor control function(when outdoor is
without PCB): 1means outdoor defrost temp. sensor is invalid; 0 means outdoor defrost temp. sensor is
valid.
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
52
Commercial Air Conditioner Commercial Air Conditioner
function selection –preset: 1 no meaning, 0 no meaning
Model: HCFU-42CF03 Model: HCFU-42CF03
HCFU-42HF03 HCFU-42HF03