Pressure Dependent Type VAVs combine the advantages of proven air handling concepts to give complete zoning flexibility atlower cost from asingle zone source. These VAVs complement by providing excellent temperature control and central air distribution with unlimited zoning, combined with common by-passing with VZD - Variable Zone Damper. The added advantage of multi-zone systems are by supplying centralized air distribution from unwanted zones to demand related zones. Easy and simple to install, can be used with packaged / ducted / air handling units in any buildings or offices and can be easily modified or relocated as per interior requirements.