Dear All, I'm trying to fill the EAc4 form, but I don't understand about HVAC&R at all. I'm not too sure what is N, Q and Rc column meaning.

Hi All, I just want to ask if the pre-charge or additional charge of the VRF system is included on the computation for Rc (Refrigerant Charge). Thanks!

Dear all, The project we're working on will be cooled with centrifugal chillers.

If I only use HVAC units totally 0.5 lbs of refrigerant on the project, do I qualify for the 2 points in this credit? If I only use many HVAC units with 0.5 lbs of refrigerant per unit, do I still

Clean agent fire suppressant materials have no bearing on the Life Cycle Ozone Depletion calculation as they are not used as refrigerants.

Hello, I have two questions regarding a district cooling system to be used in one of our projects: 1- Can we use 0.51% value for Refrigerant leakage rate and 2% for end of life refrigerant if the

Which tonnage should be used when using refrigerant calculator while considering a chiller plant serving a static ice thermal storage system?

Does anybody have an example of a long term service contract, or know specifically what needs to be included in the contract in order for it to be accepted by the GBCI reviewer?

If a university building is tied in to a campus chilled water distribution, does the campus chiller plant have to be included in the building's refrigerant use?

Is the tonnage requirement for the credit supposed to include compressor capacity only or can additional capacity from energy recovery devices be included in the tonnage?