vrf air conditioning system Next-generation Blue Star VRF line up offers even greater choice while airconditioning offices, hotels, villas and condominiums. R410A is a chlorine-free refrigerant which does not damage the ozone layer, it also increases the energy-efficiency of the system, thereby saving power and contributing directly to your bottom line. The ducted indoor units offer higher air circulation quantity of 400 CFMTR and the floor-mounted packaged type AC offers 475 CFMTR