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Energy Efficiency
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                          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