Stulz Precision Cooling – Indoor

stulz-range-of-precision-cooling-capacities
Offering the broadest range of cooling capacities for chilled water (CW) and direct expansion (DX) on the market. The STULZ line of precision air conditioners (CRACs) and air handlers (CRAHs) provide 3 to 730 kW cooling capacity. Combined with the highest level of reliability, design expertise and efficiency, STULZ systems provide the ideal solution to almost any application.

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Stulz CyberAir

CW & DX Perimeter Cooling Solutions
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 21-730 kW of cooling, there is a CyberAir air conditioner (CRAC) or air handler (CRAH) for every mission critical application.

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
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
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Stulz Compact Chilled Water (CWE)

Seismically Rated Systems
Seismically rated, high capacity chilled water CRAHs. EDesigned for 100% front service access, STULZ Compact Chilled Water (CWE) Systems can be tucked into a corner, placed side-by-side, or between cabinetry. Compact-CWE units are especially adaptable to raised floors and are available in a down-flow air pattern configuration.

Benefits of Utilizing EC Fans in Compact-CWE Systems
  • 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
Features
  • Seismically rated
  • Energy saving EC Fan technology standard
  • Up and down-flow air patterns
  • 100% front service access
  • Quiet operation
  • Made in the USA
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Stulz CyberOne

Single Circuit DX Cooling
Compact solution for efficient cooling in small spaces. Smartly designed for 100% front service access, STULZ 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 up-flow and down-flow air pattern configurations.

  • 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

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Stulz ModulAir

Modular Dual Circuit DX Cooling
A high capacity system in a very compact footprint that solves difficult rigging applications. STULZ ModulAiR computer room air conditioners are created by combining two CyberOne single compressor systems to create a dual compressor 26 – 76 kW system.

  • Modular design permits ease of installation & rigging as well as redundancy
  • DX – Air, Water, Glycol-Cooled
  • Up-flow and down-flow systems
  • Microprocessor control
  • 100% front service access
  • High efficiency scroll compressor
  • R407c
  • Made in the USA
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Stulz Mini-Space

Minimal Floor Space Needed
Designed for front only access in applications with minimal floor space. STULZ Mini-Space vertical floor mounted air conditioning units provide precision temperature and humidity control for computer rooms and other critical areas where continuous 24/7/365 operation is required. The Mini-Space solution is designed with a wide range of options to handle both precision and comfort cooling applications.

  • DX & CW
  • Up and down-flow air patterns
  • Microprocessor control
  • Compact foot print
  • 100% front service access
  • R407c
  • Made in the USA
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Stulz Flair

Console DX
Floor console mounted CRACs are 7×24 mission critical units. The STULZ Flair is a small capacity air conditioner that easily fits into any floor plan.

  • Up-flow systems
  • Microprocessor control
  • 100% front service access
  • High efficiency scroll compressor
  • Made in the USA
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Stulz CyberRow

Row Based Cooling
Intelligent airflow control for more efficient rack cooling. STULZ CyberRow systems are ideal for high density, row-based data center cooling in open or contained systems and provide for targeted hot spot reduction.

  • Innovative technology and high-quality components for minimal energy consumption
  • Can be used with racks from any manufacturer
  • Complete system separation between rack and A/C unit for maximum reliability
  • High performance value in the smallest space
  • Precise temperature control
  • Available in chilled water, air, water and glycol cooled systems
  • Made in the USA
Two Types of Air Pattern

  • Front discharge and front diverted plenum discharge options available
  • Front discharge recommended for containment configurations
  • Diverted plenum discharge recommended for open architecture configurations
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Stulz CeilAir

Ceiling Mounted Cooling
The ultimate space saver, providing precision data center temperature and humidity control. STULZ CeilAiR is the most complete line of ceiling mounted data center cooling products in the industry providing precision temperature and humidity control while freeing white space.

  • State-of-the-art E2 Microprocessor with BMS a range of interface options
  • Split, Self-Contained, Ducted and Ductless Spot Cooling Systems
  • DX systems with independently circuited, high efficiency, high reliability, and low noise scroll compressors
  • High static blowers are available for ducted systems
  • Condensate pumps can be factory or field installation (in some models)
  • Smaller capacity models easily mounted in standard ceiling
  • Fully accessible in place through easily removable side access panels
  • Available with low profile for limited installation height
  • Aluminum cabinet construction for corrosion resistance and low weight
  • Matching heat rejection for DX (standard and high ambient temperatures)

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