Forum discussion
NC-2009 EAc4: Enhanced Refrigerant Management
Hi all,
For a new construction project, the fan coil unit schedule shows that the fluid for the cooling coil is 30% PG (Propylene Glycol) and that of the heating coil as 40% PG.
Should I consider for the equipment for the enhanced refrigerant management?
Thank you!
LEEDuser is supported by our premium members, not by advertisers.
Go premium forTo post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.
Trista Brown
Project DirectorWSP USA
456 thumbs up
August 28, 2017 - 3:12 pm
Hi Romio, does propylene glycol contribute to global warming or ozone depletion? I can't find any evidence online that it does, but I'd follow up with the equipment manufacturer to see if you can get some additional details.
Lyle Axelarris
Building Enclosure ConsultantBPL Enclosure
64 thumbs up
August 29, 2017 - 2:04 pm
My understanding is that propylene glycol is not a refrigerant; it's just the working fluid to transfer heat to/from the coil (versus the refrigerant, which undergoes the vapor change process in the Rankine Cycle). We use glycol in radiant heating/cooling systems all the time and its not a refrigerant, but maybe this is a different case (?)
Fatou Jabbie, | Technology | Design and Engineering Plan Reviews | Energy Code Compliance | Sustainability | LEED AP BD+C
Founder and PrincipalUSL Technology Inc.
3 thumbs up
February 27, 2020 - 1:50 pm
I have 12 units that us 50/50 glycol and water. Should I have the units in the fundamental Refrigerant prerequisite and enhanced refrigerant management credits? My team believes that only the units that are 100%refrigerant should be listed for both Fundamental Refrigerant prerequisite and enhanced refrigerant management credits. Please advise.