Advances in energy efficient closed circuit air-conditioning

The IEC DX precision air-conditioning system using Inverter Scroll compressor conditions the air in Data Centers and equipment rooms up to 90 % more economically than conventional compressor cooling systems.


The SEC DX precision air-conditioning system using fixed scroll technology provides a highly reliable solution for long piping distance with optimised energy saving design configuration. 

SEC CW Precision air conditioning units in the standard door size are available as optimized energy or optimized output versions.  The six sizes range from 900 to 2,900mm in width.

EC fan optimized for IEC & SEC DX

  • Reduced power consumption and noise
  • Nominal airflow rate at a fan speed optimized for partial load
  • Increased airflow in each size
  • Uses the latest  motors, electronic processor and impellers
  • The performance data already satisfies the requirements and standards of the future

EC compressor

  • Infinite compressor control for maximum efficiency and precise temperature regulation
  • Maximum efficiency especially in partial load and Mixed mode
  • Constant supply air temperature
  • Integrated soft start
  • Fast, precise reaction to actual variations in heat load
  • Long service life thanks to continuous operation without compressor on/off cycles


Solutions for the IEC & SEC DX

  • Room Cooling

  • Small and medium sized Data Centers

  • Equipment Rooms

  • High-Density Data Centers

  • For use in the IT sector and medicine/hospitals

Air conduction

Flexibility thanks to variable air conduction

The IEC & SEC DX is available in Up flow, Down flow and Front flow versions



Download IEC Series

  • STULZ IEC Series

    • File: Stulz_iEC_series.pdf

    • Type: Adobe PDF

    • Size: 4,18 MB

    • Language: - No Language -

    • Date: 2016-04-13

Download SEC Series

  • STULZ EC Series

    • File: Stulz_EC_series.pdf

    • Type: Adobe PDF

    • Size: 7,11 MB

    • Language: - No Language -

    • Date: 2016-04-13

Download EC ICE Series

  • STULZ EC ICE Series

    STULZ EC ICE Series

    • File: EC_ICE_Series.pdf

    • Type: Adobe PDF

    • Size: 629,21 KB

    • Language: - No Language -

    • Date: 2016-08-18

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