By-pass VAVs combine the advantages of proven air handling concepts to give complete zoning flexibility at lower cost from a single zone source. AEROSYSBy-Pass VAVs complement by providing excellent temperature control and central air distribution by individually by-passing excess conditioned air to the main unit. The added costs of multi-zone systems can be avoided, and the need for duct mounted reheat coils can be minimized. Easy and simple to install, can be used with any air conditioning units in buildings or offices and can be easily modified or relocated as per interior requirements.