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Energy Efficiency

                    Fans control for Building HVAC systems




                    Value proposition

                    Main drivers

                    • 70 to 80% of HVAC applications (air handling units and cooling towers) are fan applications.

                    Value proposition
                    • Compared to conventional installations like motor starter and flow regulation by an outlet valve, AC drives allow you to save up to 50% of energy consumption. At 80% of nominal flow, the energy consumption is 95% of nominal power with conventional installations instead of 50% with AC drives.
                    • On top of that, the energy saving law of the Altivar 21 allows you to optimize the motor control according to the load (air density). It results in a few additional % of energy saving.

                    Differentiation factors
                    • Open to the main building communication networks
                    • Eco8 software easely estimate the energy saving according to your pump or fan applications and duty cycle.

                    Solution architecture

                    Solution architecture


                    This architecture illustration is US designed.
                    This is the S Flex range : combination of circuit breaker, by-pass contactors, drive, etc...
                    For other Countries, we suggest to use the Altivar 21 variable speed drive.

                    Solution breakdown

                    • Main Products & Systems
                      _ Display unit: Magelis XBT-G
                      _ Programmable controller: Twido / TAC controller
                      _ Motor starters and contactors: TeSys
                      _ Industrial control relays: Zelio
                      _ Variable speed drive: Altivar 21/31
                      _ Savings estimation software: ECO8
                      _ Circuit breaker: PowerPact®
                      _ Safety Switches
                      _ Power supplies: Phaseo
                      _ Operator interface
                      _ Terminal blocks