Thanks in advance.
I have seen conflicting directions on whether and which process system need to be Cx'ed. Based on CIR's kitchen refrigeration systems have been identified as requiring CX; however, I've seen references that process boilers are not required if supplying industrial service. How for example would a steam boiler for sterilizers or autoclaves be considered? What about a process chiller for medical or laboratory equipment?
The question came up in a discussion on an ice rink chiller, so I went looking for an answer and ended up with more questions.
Does anyone have any experiences or guidance on determining which ‘process’ loads are required to be commissioned and which ones do not necessarily need to be commissioned?
Scott Bowman
LEED FellowIntegrated Design + Energy Advisors, LLC
LEEDuser Expert
519 thumbs up
April 15, 2013 - 11:28 am
We do not have specific experience, as in most cases we were still contracted to commission those process systems, so they operated per the design intent. Most of our clients look for the Cx and not just limit the scope to what is required for LEED. Your example relates to healthcare, and in most of our work in that area, the owners are wanting very complete Cx on both the scope and the systems covered, so LEED is never an issue.
There is also the long discussion to have on random testing percentages, and which systems deserve 100% testing. For example, we are recommending 100% testing on occupancy testing and daylighting, as we have experienced high rates of failure and lack of appropriate adjustments and timing. Some clients understand that, others do not. However, it is always a good discussion.
Sorry that I cannot be of more help. If you end up asking a CIR, please share with this community.
Graham Langton
Building Services EngineerPM-Group
1 thumbs up
August 14, 2013 - 9:33 am
Any update on this? I'm having the same issue with steam and compressed air systems which are fundamental to a manufacturing process.