Terms for subject Air conditioners containing system

English	German
AC system	Klimaanlage
AC system	Klimasystem
air conditioning system	Klimaanlage (a/c)
air conditioning system	Klimasystem (a/c)
air return system	Umluftverfahren
combined system	Kombi-Anlage (Wärmepumpe)
direct return system	direktes Rückflußsystem
dual-duct system	Zweikanaisystem
duct system	Luftkanalsystem
extraction system	Säuglüftung
four-zone air conditioning system	Vier-Zonen-Klimaanlage
HVAC system	HLK-System
IHKA system	integrierte Heiz- und Klimaautomatik (BMW)
return system	Rückiuftsystem