EC+ Concept achieves 85% system efficiency

Danfoss and NOVENCO strategic alliance delivers integrated system solutions with optimised fans, motors and VFDs for air handling units.

Danfoss-NOVENCO alliance delivers integrated AHU systems

Rising energy costs drive demand for advanced technical partnerships in the HVAC industry. Danfoss and NOVENCO have formed a strategic alliance to deliver integrated system solutions featuring optimised fans, motors and VFDs for air handling units and ventilation applications.

The EC+ concept enables OEM manufacturers to design high-performance air handling units while significantly boosting energy efficiency in existing systems. This technical partnership addresses complex integration challenges through standardised component specifications and verified compatibility protocols. The collaboration simplifies system design because it eliminates time-consuming trial-and-error testing between incompatible components, so manufacturers can focus engineering resources on product differentiation rather than basic integration work.

Key performance metrics

85 %

System efficiency

20 %

Improvement over alternatives

92 %

Fan performance

Technical specifications deliver 80-85% efficiency

The collaboration combines ZerAx® series high-efficiency fans with IE4 or IE5 PM motors and Danfoss VFDs. The integrated system achieves remarkable efficiencies of 80 - 85%, delivering 15 - 25% improvement over alternative solutions including direct-driven centrifugal fans with EC motors.

Technical specifications deliver 80-85% efficiency

85 %

System efficiency

20 %

Improvement over alternatives

92 %

Fan performance

The collaboration combines ZerAx® series high-efficiency fans with IE4 or IE5 PM motors and Danfoss VFDs. The integrated system achieves remarkable efficiencies of 80 - 85%, delivering 15 - 25% improvement over alternative solutions including direct-driven centrifugal fans with EC motors.

Component optimisation drives 92% fan performance

Component optimisation drives exceptional overall performance through a simple multiplication of individual efficiencies:

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Efficiency multiplication formula

Efficiencyfan × Efficiencymotor × Efficiencydrive = Efficiencysystem

With motor and drive efficiencies both exceeding 95%, ZerAx® efficiency of 92% achieves a total system efficiency of 85%. This mathematical relationship demonstrates why selecting high-performance components at every level produces disproportionate system-wide benefits.

Streamlined procurement reduces OEM development time

This strategic technical partnership transforms the procurement process for air handling unit manufacturers. The standardised approach provides verified compatibility across motor, drive and fan combinations, which eliminates costly integration failures during prototype development. Technical support for complex system-integration challenges ensures projects proceed smoothly from initial specification to final commissioning.

The partnership delivers multiple commercial advantages for manufacturers seeking competitive positioning. Bulk supply options with consistent quality standards reduce procurement complexity and inventory management overhead. Joint engineering support for custom AHU applications accelerates product development cycles, whilst performance guarantees backed by both manufacturers strengthen customer confidence and reduce warranty exposure.

The result is significantly reduced development time combined with enhanced product reliability, giving air handling unit manufacturers measurable competitive advantages in the energy-efficient ventilation market.

Schako Group Admeco Novenco Reven Schako Schneider Sirocco Smitsair