operating modes: automatic, cooling, dehumidification, ventilation, heating

 overheating protection and cooling indoor coil control hot cold protection
 Indoor fan speed options: high winds, stroke, low wind
 panel manual control, LED digital display
 Compressor 3 minutes delay protection
 outdoor fan control function alone
 intelligent cream when heating function
 insufficient refrigerant protection
 blow heat during the heating function
 Anti-cold heating function
 Dual temperature sensor
 direction control function
 Emergency start function
 auxiliary heating function
 time switch function
 Sleep function