Consulting-Specifying Engineer - April 2008 - (Page 3) contents COVER STORY FEATURES 27 | Commissioning on campus The smallest details can be root causes of large issues on commissioning cases. Read four case studies that analyze commissioning issues on campus chilled or condensed water systems. BY DAVID SELLERS, PE APRIL 2008 40 | DDC master planning Several items must be considered when designing an HVAC direct digital control system. Make sure you ask the right questions. BY JAY SANTOS, PE 46 | Is radiant cooling an option? Radiant cooling systems may reduce energy consumption while decreasing cost. BY GEOFF MCDONELL, PENG., LEED AP On the cover: College campuses are turning to text messaging to alert students about real and potential threats. 18 | The challenge of mass notification systems on American campuses As security breaches become commonplace, nowhere has the concern for personal protection hit home more than on the campuses of our colleges and universities. Mass notification systems require integration with people, not just hardware and software. BY WILLIAM SAKO DEPARTMENTS 07 | Viewpoint Engineering by the inch 60 | New Products 72 | Equipment Lifecycles Boiling it all down 08 | News Earth hour diary, mixed results for nonresidential construction 79 | Advertiser Index 80 | Green Space ‘Mind the Gap’ 12 | M/E Roundtable Power grids KEY AUTOMATION & CONTROLS COMMUNICATIONS ELECTRICAL FIRE, SECURITY & LIFE SAFETY HVAC LIGHTING PLUMBING 54 | Codes & Standards NEC and standby gensets 58 | Case Study Hospital cures HVAC system Consulting-Specifying Engineer • APRIL 2008 3
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