DAX Directional Airflow exhaust system. Energy efficient heat removal and redistribution. Product overview and technical data

Transcription

1 DAX Directional Airflow exhaust system Energy efficient heat removal and redistribution incorporating technology Product overview and technical data

2 Overview and principle DAX System - what is it? The primary function of the Directional Airflow Exhaust DAX system is the removal and distribution of heat from the rear of a 19 cabinet in an energy efficient and controlled way. Features and benefits A substantial reduction in power consumption Reduction on air conditioning usage Heat the office in winter months or other rooms/spaces with reclaimed heat Energy efficient EC fan technology Optimise hardware performance Capital cost reduction Extended life span on room air conditioning and active equipment Environmental control and monitoring The UTelligent FaEn (Fan and Environmental) control philosophy continuously monitors and modulates the fan speed dynamically adjusting to ensure optimum performance Built in redundancy In the event of a system fault, the DAX unit will continue to perform uninterrupted until the fault can be fixed Local environmental display/diagnostics Enables each unit to have current status viewed offering peace of mind that your system is working as required EC centrifugal fans offer 1075m 3 /hr Page 2

3 DAX System Benefits explained Substantial reduction in power consumption Room air conditioning systems use large amounts of energy, especially in summer months, but when you add into the room a typical fully populated data comms cabinet - it s like adding a very large electric radiator into the room - the air conditioning system simply has to work that much harder in order to maintain the required ambient room temperature. The answer is to duct the hot air away from the cabinet and into another space, such as the ceiling plenum, outdoors or to reuse the heat in a warehouse or adjacent office. This way the hot exhaust air does not enter into the room thereby significantly reducing the power consumption of HVAC systems. Incorporating Technology Energy efficient by design The DAX system incorporates EC fan technology which is more energy efficient than standard AC or DC fans. Furthermore the EC fans are temperature controlled via the UTelligent FaEn controller so they only need to go at the speed necessary to remove the heat. Reclaimed and recycled room heating Although exhaust air can be redirected to another space giving the option of free heating, in some cases it is likely that the exhaust air will be merely dumped outdoors. So as not to waste this resource especially in winter months, the DAX system has been designed to allow the air to be redirected back into the room either manually or automatically thus reducing the heating bill and your carbon footprint. Exhaust hot air to wall plenum or Capital cost reduction This ability to redirect waste heat means the life expectancy of the HVAC system is extended as it doesn t have to work so hard. When hardware is maintained at too high a temperature for a sustained period of time, its life expectancy is drastically reduced and it will need to be replaced much sooner than necessary. Because the DAX system enables a constant ambient temperature, a much longer life expectancy is maintained throughout its working life. Exhaust hot air to ceiling plenum or Exhaust hot air back to the room Page 3

4 Benefits explained Hardware performance Hardware is severely hampered when operating at higher than recommended temperatures, on-board chips will often throttle back and perform at half speed or lower in order to protect themselves. The consequence is that the speed of the software will run much slower and tasks will take much longer to carry out. The DAX system ensures a stable working environment. Built in redundancy The DAX system comprises of two independently operating EC fans working in tandem enabling one to take over the performance of the other in the event of fan, sensor or DC supply failure until a replacement can be hot swapped. This way the cooling of the equipment is maintained.. Other operational benefits include: The DAX system has been designed to work with one or two EC centrifugal fans. Each fan delivers 1075 Cfm which in an average room temperature of 21 degrees equates to around a combined 12kW hot air removal with the 2 fan system. In most cases one fan will be sufficient to remove the heat load generated by the active equipment. However the benefit of using two EC fans is the redundancy provided. Furthermore two fan units working in tandem will mean they rotate at a slower speed thereby using less power and producing less noise. Front view DAX with compliant cabinet Each system comes complete with an LED display, providing environmental information such as internal cabinet temperature, fan and thermistor status. In the event of a system fault this will also be displayed. There is also a local audible alarm in the event of any failure Alarm status can be monitored on the network via SNMP On-board diagnostics Network option capability for remote monitoring, notification inclusive of GUI (Graphical User Interface) Administration rights and user access rights Hot swappable fans Upgrade existing USpace 4210 cabinets Rear view DAX with compliant cabinet Page 4

5 DAX System Build Specification Cabinet 1 x DAX compliant USpace 4210 cabinet with on board LED status monitor Fan assembly Please note - The DAX cabinet comes with either one or two DAX fan assemblies each having an independent mains feed. Full redundancy however can only be achieved when two fans are deployed and fed by separate power supplies. Each DAX fan assembly contains the following: 1 x 220mm Ø backward curve EC centrifugal fan 1 x single channel FaEn board and digital EC fan speed control board. FaEn board is inclusive of: User adjustable fan ramp rate General fault alarm On-board diagnostics 1 x temperature sensor (sensor can be placed anywhere in the cabinet) Wiring looms Auto ranging switch mode PSU for DC supply to FaEn board Technical specification EC centrifugal fan performance data 220mm Ø backward curve fan incorporating EC technology IP 44 rated Current consumption per fan Airflow Noise level at full speed Noise level at 30% running speed Power requirement FaEn Power requirement LED display 240V/0.6A 115V/1.1A maximum 1,075 m³/hr 1m 25mA each 40mA each DAX fan assembly housing Material 1.2 mm CR4 steel Finish Textured powder paint: Light grey RAL 7035 or USpace Black, RAL 9005 Weight 12 kg (combined weight of main duct body and telescopic duct) ISO 9001: 2008 accreditation USystems is registered for this quality management system, covering all manufacturing areas and associated processes Page 5

6 Technical information UTelligent FaEn board Monitoring Fan status which detects fan tacho feedback, fan stall, fan mains power failure, fan non-rotation and fan blockage. Temperature sensor which monitors general temperature status, over and under temperature and thermistor fail. On-board diagnostics When the fault alarm is triggered the following faults can be identified via on-board diagnostic LED s: Fan status (working, fail, stall) Over and under temperature Temperature sensor fail FaEn board fail (this does not include DC power fail) NB. In the event of two simultaneous faults then diagnostic LED s will pulse to identify each fault or scroll on LED display. Safety feature In the event of the faults listed below occurring and provided that 240v/115v is present, the general alarm will be triggered and fan/s will automatically go to full speed as follows: Temperature sensor fail i.e. not fitted, incorrectly fitted, component failure (open or closed circuit) FaEn board fail Loss of DC power to FaEn board FaEn board fail Two fan DAX system Page 6

7 from ColdLogik rear coolers ColdLogik rear coolers economically maintain the ambient air temperature within a data and communications room while minimising the energy required to cool IT equipment. The coolers are fitted to the back on an enclosure typically being IEC297 and EIA 310 compliant. They have been designed to remove heat generated by the IT equipment directly at source thus preventing hot air entering into the room. ColdLogik aisle containment Aisle Containment solutions suitable for new builds and is also fully retrofittable onto both USystems and OEM cabinets for new build or existing data centres without affecting day to day operations, where the cold aisle can be contained to maximise cooling efficiency. The USystems Aisle Containment systems are available to suit various aisle widths and for aisle to walk configurations. Aisle Containment can also be installed on mixed height aisles. ColdLogik CAP system To improve the efficiency of a CRAC based data centre design, USystems ColdLogik controlled air path CAP units isolate and guide hot air out of the top of the cabinet into a ceiling plenum. Removing hot air from each cabinet by ducting the air through funnels on the top of the cabinet - in a controlled manner through to the ceiling plenum - is a logical, simple and highly cost effective improvement to managing data centre cooling. USystems Limited Unit 5 Green End Business Park, Green End, Gamlingay, Bedfordshire, SG19 3LF, England T +44 (0) F +44 (0) sales@usystems.co.uk USystems shall not be liable for any damages resulting from misapplication or misuse of its products. The company reserves the right to update its products without notice. USystems Limited, April 2014 Issue 2. The USystems logo and UCoustic, ColdLogik, UTelligent and USpace are trademarks of USystems Limited. Page 7

8 DAX system cabinets Intelligent directional cooling P e r f e c t c l i m a t e - p e r f e c t c o n t r o l USystems Limited Unit 5 Green End Business Park, Green End, Gamlingay, Bedfordshire, SG19 3LF, England T +44 (0) F +44 (0) sales@usystems.co.uk USystems shall not be liable for any damages resulting from misapplication or misuse of its products. The company reserves the right to update its products without notice. USystems Limited, April 2014 Issue 2. The USystems logo and UCoustic, ColdLogik, UTelligent and USpace are trademarks of USystems Limited.