DC Inverter U-match Series Cassette Type Unit 
41 
 
(3)  How to connect the connection wire and power cord. 
Lead the connection wire and power cord through the insulation tube. Then fix 
the wires with wire clamps (as shown in the following figure). 
 
①.  Before  working,  please  check  whether  the  indoor  and  outdoor  units  are 
powered on.     
②.  Match the terminal numbers and wire colors with the colors indicated in the 
indoor unit.   
③.  Wrong wire connection may burn the electrical components.   
④.  Connect the wires firmly to the wiring box. Incomplete installation may lead to 
fire hazard.   
⑤.  Please use  wire clamps to secure the  external covers  of  connecting  wires. 
(Insulators must be clamped securely; otherwise, electric leakage may occur.) 
⑥.  Ground wire should be connected.