Johnson Controls Series Fan Powered Variable Air Volume terminals are available from 100 to 4600 cfm, offering tremendous flexibility to meet a wide variety of HVAC systems design requirements. The series fan units are specifically designed for quiet operation and they also offer improved space comfort which is critical in today’s buildings, where occupants are placing more emphasis on indoor acoustics, efficiency and comfort level within the indoor spaces. Series and Parallel Fan units offer substantial operating savings which can be realized through the recovery of waste heat, and night setback operation. The Variable Air Volume terminal recovers heat from lights and core areas to offset heating loads in perimeter zones. Additional heat is available at the terminal unit using electric, steam, or hot water heating coils. Controls are available to energize remote heating devices such as wall fin, fan coils, radiant panels, and roof load plenum unit heaters.