Does the SF6 (Sulphur Hexafluoride) insulating gas used to quench the arc in electrical power equipment (MV switchgears) need to be taken into consideration under the EAc4? The credit language states that only the refrigerants in HVAC&R equipment are considered in the calculation. Nonetheless, I just wanted to confirm this as SF6 is a greenhouse gas which has a very large GWP. From my review, there do not seem to be any other LEED credits that would limit the use of SF6. Does anyone know anything to the contrary? Thanks!