Stulz CRAH design + EC Fan Technology = the greener way to cool your data center
Stulz exclusive Chilled Water CRAH cabinet design in combination with the energy efficient electronically commutated (EC) plug fan provides an immediate energy savings of up to 30% over units using conventional fan technology with on/off control. Intelligent control of this exclusive combination of technology with the use of redundant units can allow users to see savings over 50% when compared to those same conventional units with on/off control.
Stulz leads the industry as the first manufacturer in the USA to offer CRAC/CRAH units with EC Fan technology, and the only one with measurable experience. We have thousands of CRAH's with this technology deployed in some of the largest data centers across the USA. Our expertise affords you the luxury of a top of the line product, proven over time to maximize cooling and energy savings simultaneously.
The EC Fan is available as a standard in our complete line of precision air conditioners.
With expert insight and experience, our specialists are ready to help you solve your precision cooling challenge.
Stulz Precision Air Conditioners with EC Fan's offer on-demand, automatic and manually controllable variable speed capability and achieve the benefits of improved efficiency, reliability and low running costs.
Advantages of the EC Fan
- Lower running cost - significantly more efficient motor
- No belt drives - reduce maintenance (no changing or adjusting)
- No belt dust and therefore no contaminating of mission critical equipment, including servers, disk drives, telecom switch gear, etc.
- Lower (audible) noise - no AC inverter whine
- Less vibration
- Due to individual direct drive nature of EC Fan, redundancy is built into each unit containing multiple fans...particularly Chilled Water CRAH units (greater allowable coil air volume range)
- Fan speed is continuously adjustable via a signal from the system controller without the use of VFD's
- Optimized air distribution into raised floor to avoid hot spots
- Contact us for a complete list of advantages
