Silent-Aire Systems is able to provide our clients with a variety of cooling options including:
Free cooling CRAC control systems analyze the outdoor air conditions and will use outdoor air when temperature and humidity conditions permit. When free cooling is engaged all other cooling is turned off; only unit fans are active. Most geographic locations’ climate conditions permit the use of free cooling during off-peak temperature and humidity conditions to maximize energy efficiency
In using a chilled water option, air is cooled by passing through a chilled water coil within the CRAC unit that utilizes the DATA center owner’s central chilled water plant.
This allows for full recirculation of data center aire during peak outdoor humidity and temperature air conditions, where evaporative air cooling is not possible. This usually occurs during peak temperature hours during the summer. Water pressure drop through Silent-Aire CRAC units is typically half that of an equivalent off the shelf CRAC unit.
Direct Expansion (DX) Cooling
DX cooling is a traditional mechanical refrigerant based cooling system that is available in air cooled and water cooled systems. Available in a wide range of environmentally friendly HFC based refrigerants.
Direct Evaporative Cooling
Silent-Aire Systems is the only manufacturer to incorporate direct evaporative cooling into CRAC units. This cooling method utilizes the evaporation of water in the airstream without the need for compressorized refrigerant based systems. Evaporative cooling consumes up to only 5% of the energy than a traditional compressor based cooling system. It is most effective when high temp and low-medium humidity outdoor air conditions exist.
Non-Traditional Cooling Methods
As a custom manufacturer of CRAC units Silent-Aire Systems has the engineering and manufacturing capability to work with clients to implement non-traditional and novel cooling methods. Our in factory research and development allows for prototype testing and performance tuning.