GMV DC Inverter VRF 
46 
marked with “L1, L2, L3, N, 
” respectively and the grounding screw beside the power wiring board.     
 
Fig. 3.8.2 
Step 2: Tighten the cable with a cable tie. 
Step 3: Please refer to the engineering wiring mark on the unit for the power cord connection.   
 
WARNING! 
  When the strong wire and the communication line pass through the wire hole, they must be 
equipped with wire rubber ring. 
3.8.3.2 External Wiring Diagram 
Each unit should be equipped with a circuit breaker for short circuit and abnormal overload 
protection. The circuit breaker is normally closed. 
 
Fig. 3.8.3