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I am having trouble understanding the allowable amount of refrigerant charge if I have multiple chillers and would like to pursue EA Credit 4. According to the reference guide, "Most projects...

Please,

How to calculate the Refrigerant Charge??

Thanks!

HVAC for the whole building is in the process of being designed (VRF system). We would like to know if the system can be installed in 2 stages, but we would like to submit the LEED certification...

Applying values to "Refrigerant Impact Calculaton" chart, we have final impact per tone equal to 100 for each device. "average refrigerant impact per ton (must be less than or equal to 100)" is...

According to the reference guide I can use non-default values for Lr and Mr if providing supporting evidence material. Our project will be connected to the a district cooling plant with rigorous...

Our project building will we connected to a large-scale city district heating network. In the design review we got the following comment:

"Please see the Treatment of District or Campus...

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...

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/...

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...