Gree GUHD12NK3CO Installation And Operation Manual page 2

● Ensure unified power supply for each indoor unit.
● Never install wired controller in wet place or under sunlight directly.
● Shielding twisted pair line must be adopted as signal line or wiring (communication) of wired
controller once the unit is installed in the place where there is electromagnetic interference.
● Make sure communication line is connected into correct port to avoid communication
malfunction.
● Never knock, throw or frequently disassemble the wired controller.
● Never operate the wired controller with wet hand.
User Notice