STULZ CyberAir

Intelligent perimeter mounted solutions for precise data center cooling

STULZ offers the broadest range of cooling capacities for chilled water (CW) and direct expansion (DX) units on the market.  With 21-1080 kW of cooling, there is a CyberAir air conditioner (CRAC) or air handler (CRAH) for every mission critical application.

Product Manual Downloads



  • Small IT rooms to large enterprise data centers

  • Medical/Healthcare

CW Cooling

CRAH - Chilled Water (CW)

  • Largest capacity perimeter CW air handlers in the industry

  • Greater airflow than other solutions

  • Multiple EC Fan options (additional fans in same size cabinet)

  • All EC Fans mounted in the cabinet meet full performance without having to be dropped into the raised floor

  • Fewer units at higher capacity can significantly reduce capital cost and operating cost

  • 2 x CW valves standard on CFD-510 and larger units (option for 1 CW valve)

  • Dehumidification efficiently achieved through reduced air volume at maximum cooling

  • Standard and seismic floor stands available for all CW units

  • Filter plenums designed with increased surface area for filtration, lower pressure drop, and improved energy savings

  • Standard MERV 8 filters (optional up to MERV 14 filters)

  • 100% front access on all sizes

  • Made in the USA

DX Cooling

CRAC - Direct Expansion (DX)

  • DX systems provided with highly efficient and reliable low noise scroll compressors

  • Single or multi-stage compressor arrangement including tandem configurations

  • Micro plate heat exchangers offer major improvements in heat transfer

  • Optimized AWS/Free-cooling coils to closely match DX cooling capacities, increasing energy savings opportunities

  • Refrigeration-based dehumidification system effectively removes excess moisture

  • Hot gas reheat - provides reheat using recycled compressor heat

  • Snap acting / full floating hot gas bypass system provides cooling capacity modulation and evaporator coil freeze protection

  • Multiple stages of DX cooling to match load requirement

  • Electronic expansion valves can be optimized to work over a wide range of conditions

  • Made in the USA

STULZ provides a broad range of heat rejection options for STULZ DX Cooling

Heat Rejection Options
  • Dave Meadows, Direct of Industry, Standards and Technology

    "Mission Critical applications require precise control of temperature and humidity 24/7/365.  The CyberAir series is the ideal, proven CRAC and CRAH to supply this control, cooling everything from small IT closets to the largest enterprise data centers in the world."



STULZ E2 Control and Monitoring

  • Precise control of temperature and humidity
  • Multiple I/O capabilities for all major components to optimize control for energy savings
  • Supports universal BMS interface for remote monitoring (address readable) and remote control (address writable)
  • Capable of networking controllers in a workgroup (pLAN) to work as one (no BMS required)
  • Pre-engineered controls for economizers and adiabatic cooling

Learn more about about E2 Controller

Technical Data

High CapacityCRAC Dual Circuit DX SystemsCRAH Single & Dual Circuit CW Systems
kW21 - 105

60 - 730

MBH72 - 360202 - 2,570
Tons6 - 3016 - 214
CFM900 - 15,0004,800 - 60,000


Technical data is subject to change without notice.


Product Downloads

  • STULZ CyberAiR CW Data Sheet

    • File: STULZ_CyberAiR_CW_Data_Sheet.pdf

    • Type: Adobe PDF

    • Size: 567,60 KB

    • Language: English (US)

    • Date: 2017-07-20

  • STULZ CyberAiR 060-730kW CW Engineering Manual QECS009F

    • File: STULZ_CyberAiR_060-730kW_CW_Engineering_Manual_QECS009F.pdf

    • Type: Adobe PDF

    • Size: 7,54 MB

    • Language: English (US)

    • Date: 2018-12-19

  • STULZ CyberAir CW IOM OCS0138B

    • File: STULZ_CyberAir_CW_IOM_OCS0138B.pdf

    • Type: Adobe PDF

    • Size: 3,43 MB

    • Language: English (US)

    • Date: 2018-02-13

  • STULZ CyberAiR DX Data Sheet

    • File: STULZ_CyberAiR_DX_Data_Sheet.pdf

    • Type: Adobe PDF

    • Size: 512,65 KB

    • Language: English (US)

    • Date: 2017-07-20

  • STULZ CyberAir DX Engineering Manual QECS010E

    • File: STULZ_CyberAir_DX_Engineering_Manual_QECS010E.pdf

    • Type: Adobe PDF

    • Size: 2,64 MB

    • Language: English (US)

    • Date: 2018-08-22

  • STULZ CyberAir DX IOM OCS0135-

    • File: STULZ_CyberAir_DX_IOM_OCS0135-.pdf

    • Type: Adobe PDF

    • Size: 2,91 MB

    • Language: English (US)

    • Date: 2016-03-28


Contact us

Sales for All Products Areas in United States

  • STULZ Air Technology Systems, Inc.

    STULZ Air Technology Systems, Inc.

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