electric driven van chiller unit France Vehicle Engine Driven Van Chiller Unit - m.KingclimaKingclimakingclima Chiller unit, as the main component of a chiller van, can be divided into electrically driven system and vehicle engine powered one. D.C. Powered Mini Van Chiller Unit D.C. powered chiller unit can be operated on DC12v, DC24v, 48v, 60v, 72v mini vans.