We are participating in LEED CS v2009 certification in an office building.

This project consists of changing the HVAC system in the building.

During the remodeling, this building...

I am working with a LEED CS project. My question is, whether commercial refrigeration units in leased supermarket areas must be included in the calculations?

The credit language talks...

We are working on a retail project and the mechanical designer insists on using a split VRF system. However the Mitsubishi systems he recommends do not meet the allowable refrigerant/ton set out...

I have a project where the project team are planning to partly cool the building using an aquifer. It would basically work as follows: Cool water from the aquifer is pumped from one side of the...

Is gas FM200 allowed for fire supression systems?

This credit is listed in Appendix 4 under case C so it should include tenant spaces as well. I have a question regarding filling in the LEEDonline form. Is it ok if we fill in the form only with...

Dear all,
Our building is supplied with cold water from a...

Dear all,

The project we're working on will be cooled with centrifugal chillers. The Mechanical Engineer is suggesting installing a "Reserve refrigerant box", which is a cylinder...

hi

The project we´re working on will be cooled by coolling towers, so the tenants can have cooled water to install their own HVAC system. We´re no using any type of refrigerant, but a...

I think most of the projects have encouraged similar project when dealing with the leakage rate (2% by default).
Does anyone know if USGBC has a list for those approved refrigerants/...