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8. Indoor unit communication addresses setting
1.There are two methods to set the communication address
A. Use the remote controller(default status in first installation).
B. Use dip switches on the indoor unit PCB.
2. Address setting procedure when using the remote controller.
A. Set the addresses only after the successful installation of the refrigerant pipes and connecting cables, and
open all the stop valves;
B. Please confirm that the indoor units and the outdoor unit in the same system use the same power source;
C. Power on the units, but put all the indoor units in the status of STANDBY;
D. Please note that the address must be set as following:
Indoor unit that connect to valve A, the address must be 1;
Indoor unit that connect to valve B, the address must be 2;
Indoor unit that connect to valve C, the address must be 3;
Indoor unit that connect to valve D, the address must be 4;
E. Example: set unit A to address 1.
Continuously press the emergency switch for about 15 seconds, the buzzer will sound 4 times(PI PI PI PI)
and then leave go of the switch. At this time, the indoor unit has entered the address setting procedure. But
the LCD display board is blank.
F. Use the controller to turn on the indoor unit. At this time, the controller should be changed from OFF to
ON, and then the LCD display board will display number ì1î. That is to say, the address setting is enabled.
G. Press the button ìSLEEPî on the controller, the times you press it stands for the address you want to set,
detailed as following:
Press button ìSLEEPî one time, the address is ì1î, and the LCD display board shows ì1î;
Press button ìSLEEPî two times, the address is ì2î, and the LCD display board shows ì2î;
Press button ìSLEEPî three times, the address is ì3î, and the LCD display board shows ì3î;
Press button ìSLEEPî four times, the address is ì4î, and the LCD display board shows ì4î;
H. Use the remote controller to turn off the unit, At this time, the controller should be changed from ON to
OFF, and the unit will exit the address setting procedure, the address will be memorized. The LCD display
board will always display the address of this indoor unit until the system be powered off.
I. If you want to change the address, please repeat the above steps from E to G.
J. After setting all the addresses, please power off the system and then power on again. Otherwise the system
will not start to work.
K. Once the addresses are successfully set, please do not change it any more to avoid confusion.
3. Address setting procedure when using the DIP switches SW01 and SW02.
A. The DIP switches SW01 and SW02 are on the indoor unit PCB.
B. Before carrying out the address setting work, the system must be powered off.
C. Take off the front panal and the filters, then take off the flaps and also the front cover,disconnect the swing
motor connectors from the PCB and then take out the lower part of the PCB.
D. Change the position of DIP 1 of SW01 from OFF to ON, if fail to do this, the addresses set by SW02
will not work.
E. Use SW02 to set the addresses as following(DO NOT CHANGE OTHER DIP SWITCHES):
CAUTION! FAIL TO DO THIS, THE UNIT WILL NOT WORK.
Incorrect address setting will cause abnormal to the system.and then put it down perpendicularly.
Signal connecting cable must be sheilded type.
Instructions to installation