Precision Cooling for Small Spaces

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Compact Solution for Efficient Cooling in Small Spaces

Smartly designed for 100% front service access, CyberOne EC systems are easily tucked into a corner, between cabinetry, or side-by-side.  CyberOne units are especially adaptable to raised floors and are available in upflow and downflow air pattern configurations.

Data Center
Data Center
Our units are designed for highest requirements and maximum reliability
Small, medium & large rooms
Small, medium & large rooms
Precision air conditioning units for low to high heat loads
Room application
Room application
System for direct room humidification
Standardized unit
Standardized unit
Standardized design for short delivery times
Compact unit
Compact unit
Maximum cooling capacity with a minimal footprint

Product Overview

At a glance


  • Data centers

Key Features:

  • Adjustable air volume
  • Power correction included
  • Easily tucked into a corner or between cabinetry.
  • Adaptable to raised floors
  • Can be up-flow or down-flow
  • Quiet operation
  • Direct drive- no belt abrasion/dust, maintenance free operation
  • 100% front service access
  • Fan speed is continuously adjustable via a signal from the system controller without the use of VFD's
  • Direct drive- no belt abrasion/dust, maintenance free operation
  • Less vibration/ quiet operation
  • Optimized air distribution into raised floor to avoid hot spots
  • Adjustable air volume
  • Power correction included
  • Made in the USA
Technical Data
ModelCapacityCabinet Size H" x W" x D"

COS-024, 042, 060-( )7 - 19 kW76 x 31 x 3082 x 31 x 30
COS-096, 120-( )26 - 38 kW76 x 39 x 3482 x 39 x 34


Technical Data subject to change without notice.

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

STULZ E² Benefits

  • Backlit LCD alphanumeric display for visual indication
  • Operated via 6-key menus, in five different modes
  • Unit functions for cooling, heating, humidifying and dehumidifying
  • Three levels of restricted entry into the configuration
  • Sensor inputs control inputs/outputs
  • Additional I/O sensors and alarms
  • Optionals UPS backup module 
  • Independent EC Fan and cooling control (CW valve or DX)
  • Cooling control sequence: return air temperature, humidity, supply air temperature, dew point
  • Fan control sequence: BMS, local/static pressure, and temperature based (supply or return air)
  • Capable of networking up to eight EControllers with an independent LAN
  • Psychrometric control provided as a user configurable temperature and humidity (relative humidity) or dew point control

STULZ E² Controller communicates with BMS/BAS systems via the following protocols:

  • BACnet IP
  • BACnet over Ethernet
  • BACnet MS/TP
  • HTTP
  • SNMP V1, V2c
  • Modbus IP
  • Modbus RTU


Find your individual STULZ contact

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Related Products

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Custom Indoor AHU

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Do you have any questions? We will be happy to help! Please call us or follow our contact form.

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