STULZ Custom Indoor Air Handling Unit

Custom Indoor AHU

Custom Indoor Air Handing Units are purpose-built data center cooling solutions. STULZ works closely with customers to design the optimal unit for their specific needs, ensuring the right solution, every time.


  • Large & Hyperscale Data Centers

  • IT Sector

  • Without Raised Floor


Extensive range of capacities and cooling configurations

  • Direct Expansion

  • Chilled Water

  • Direct Adiabatic

  • Free Cooling

    Air-Side and Water-Side Economizer Solutions Available



  • Robust, extruded aluminum construction with various panel thickness, including a thermal break option

  • Various voltages available in 50/60 Hz designs

  • Custom horizontal and vertical orientation to fit any space

  • Flexibility to be mounted on pad, steel, curb, or floor stand structures with lifting points for rigging

  • Filter options available in MERV7 to MERV14

  • Ease of access for service and maintenance

  • Meets global standards

EC Plenum Fan Design

  • EC Fan array with variable airflow
  • Multiple fan sizes and fan array arrangements available
  • Eliminates need for variable speed/frequency drives
  • UPS available for continuous fan operation
Custom AHU Solutions

Custom AHU Examples

Explore Custom AHU Examples

STULZ E2 Control and Monitoring

  • State-of-the-art STULZ E2 Microprocessor with a range of BMS interface options
  • 3rd party controls integration available
  • Controller UPS available for keep-alive

Learn more about about the Controller



    • File: STULZ_Custom_Indoor_AHU_brochure_1810_EN.pdf

    • Type: application/pdf

    • Size: 2,58 MB

    • Language:

    • Date: 09.10.18





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  • STULZ Air Technology Systems, Inc.

    STULZ Air Technology Systems, Inc.

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