I heard from two fellow commissioning professionals in the same week about the inconsistencies between functional performance test (FPT) procedures used on new construction projects. I know that these vary from non-existent to blank sheets of paper to generic off-the-shelf scripts to very detailed steps and acceptance criteria. As building systems commissioning has evolved over the past 20 years, I have been supportive of the idea of varying levels of commissioning rigor as required to match different owners’ priorities and budgets. This was based on the belief that some commissioning is better than no commissioning in most cases.
versions of the USGBC’s LEED® rating system include prerequisites
for minimum energy performance and for commissioning. These two
critical criteria, however, are not explicitly linked, and I believe
LEED certification may be more meaningful and effective if they were.
Many engineers tend to avoid or delegate the nitty gritty of a ground source heat pump system, from soil moisture effects to building system (im) balance. It's time for designers to get in the loop. Learn more about Grounded In Reality in the December issue. Other topics in the December issue include health care HVAC, Boilders, check out the Back2Basics, and more.