Dwyer Engineering Blog

Office Building VAV Rooftop Unit Replacement

Posted by Dave Driver, PE Feb 9, 2016 5:41:08 PM

VAV Replacement Pitfalls

When the time comes to replace that old VAV rooftop unit, a building owner may solicit proposals from contractors for more efficient, but same capacity, direct replacement equipment.  

Before signing that purchase order, here are four considerations that could justify a more in-depth look. 

  • Is the capacity right?
  • Is the new unit heavier?
  • Does the new unit fit?
  • Is gas available?
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Topics: Washington-DC, Rooftop Units, Office Building HVAC

DC Green Building Code

Posted by Matthew Dwyer Apr 24, 2014 9:43:00 AM

The new DC Green Building Code took effect as of April 2014, based on the 2012 International Codes (access ICC here: http://publicecodes.cyberregs.com/icod/index.htm) and intended to increase energy conservation in the nation's capital.  There are 14 separate Word files of amendments (650+ pages) available for free at dcra.dc.gov, or if you want a single, very unofficial, bookmarked pdf of the amendments, let me know.  Three amendments caught my eye on my first read:

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Topics: Washington-DC, Energy, Building Codes, green engineering