Articles
Virtual Retro-Commissioning: Preparing For Video Walkthroughs & Testing
Our President, Rebecca Ellis, has been writing a monthly column in Engineered Systems Magazine since 1998. Read May’s column below: As discussed in my last three columns (February, March, and April 2021), there are a number of retro-commissioning activities that can be completed remotely. However, there is much to be learned from seeing, touching, and hearing…
Read MoreAddressing PRVs in Domestic Hot Water Recirculating Systems
Synopsis There are numerous parallels and striking differences between domestic hot water recirculating systems, and the hydronic systems used to heat and cool facilities. This paper will explore those parallels and differences to highlight the common pitfalls seen in the design and operation of domestic hot water recirculating systems which include the presence of a…
Read MoreThe U.S. Air Force’s Approach to HVAC Education: Developing Field Competence
Miles Ryan, a P.E. at QSEng co-authored this ASHRAE published article about his experience in The U.S. Air Force. An engineer who is as comfortable in the field as they are in the office is someone you want on your team, especially if your team operates and maintains facilities. Developing this competence can take years…
Read MoreCommissioning Best Practices: Electrical – Top 10 Deficiencies and Challenges
Here are the top 10 deficiencies or challenges encountered on a wide range of projects. 1. Equipment settings not available or not understood Settings for ATSs and other equipment generally are not provided by the design engineer or owner prior to functional performance testing. The commissioning professional needs to request the settings well in advance…
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