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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.
                 
                 
                 
                 
                 

                Success Stories

                 
                 
                •   ...
                •   ...
                •   A 10% reduction in motor speed for centrifugal fan and pumps yields a 27% savings in electricity ...
                More
                •   Up to 27% energy savings, better comfort for the guests ...
                 
                 
                 
                 

                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