R410A Full DC Inverter Split Duct Type Technical Manual                                         MCAC-UTSM-201503 
61 
 
Rear view:   
  Wiring principle sketch: 
 
 
  Wiring figure: 
Connect two terminals of embedded 4-core shielding wire with the switching wires of wired 
controller and signal receiving board. Make sure the sequence of 4 terminals (A, B, C and D) 
should correspond to the wire sequence of signal switching wires (A, B, C and D). 
 
 
If the embedded 4-core shielding wire cannot go through the wired controller, it can use 
signal switching for connection; make sure the wires are reliable and firm.