ID#2444 made on
EAc4 - Enhanced refrigerant management
LEED BD+C: New Construction, LEED O+M: Existing Buildings, LEED BD+C: Core and Shell, LEED BD+C: Schools
The intent of Energy and Atmosphere Credit 4, Enhanced Refrigerant Management is to Reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions...
The intent of Energy and Atmosphere Credit 4, Enhanced Refrigerant Management is to Reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to global warming. Our project is a high-rise mixed use (mostly residential, but partly retail and commercial) building being built in a new section of Dubai and will be connected to a new District Cooling Plant using HFC-134a for all of its cooling demand. The project has no small HVAC or Refrigerant systems and plans to use in-ceiling sprinklers for fire suppression in corridors and occupied spaces in the building. Local code requires that the electronic building management equipment room (an area comprising less than 1% of GFA) for the building employ a different system for fire suppression utilizing the compound FM200. This is a chemical suppression system made by Dupont Chemical company. Upon our initial research, FM200 appeared to be noncompliant with Montreal Protocol Phase out efforts because a key ingredient in production of FM200 is HCFC-22. However, according to the manufacturer, the HCFC-22 is used and entirely consumed (except for trace quantities) in the production of FM200. In other words, the HCFC-22 is used in the chemical reaction required to create the fire suppression chemical, the reaction causes the HCFC to be changed to an HFC (HFC-227ea as listed on the manufacturer's MSDS at http://msds.dupont.com/msds/pdfs/EN/PEN_09004a358037d86b.pdf). As a result, by the time the product arrives packaged at our project site it is no longer an HCFC. In the event of release through leakage or a fire, this chemical will not contribute to ozone depletion. We believe that this product should not negate our capacity to achieve EA Credit 4 as the final use product is, in fact, an HFC. Please confirm that our approach to this credit is correct and will meet the intent and requirements of the credit.
The applicant is requesting clarification if the proposed FM200 based fire suppression system meets the requirements of EAc4. Based on the narrative and the manufacturer's MSDS, it appears that only minimal traces of HCFC-22 are left in the product after manufacturing, and therefore appears to meet the intent of the credit. Provide documentation from manufacturer informing what "traces" mean and quantities present. Applicable Internationally; UAE.
Related Addenda (Corrections & Interpretations)