We have a VAM Chiller, and we indicated "none" as the refrigerant type because in VAM chillers, water serves as the refrigerant, resulting in zero OWP and GWP. However, the LEED reviewer has raised the following query. In this situation, how should we proceed?

Review:

1. It is not clear whether all equipment containing 0.5 or more pounds of refrigerant has been included under this credit. Specifically, the systems narrative provided under Energy Efficiency Best Management Practices indicates on page 4, that there are 8 chillers. Note that standby equipment must be included in the calculations. Revise the form to include all equipment that contains 0.5 or more pounds of refrigerant or provide a narrative explaining the discrepancy and confirming that no additional refrigerant-containing equipment is utilized in the building. Ensure that all commercial refrigeration and auxiliary cooling equipment containing 0.5 or more pounds of refrigerant has also been included in the form.