I am looking for information to help us layout a fire protection system for a commercial site. In particular information on locating FDC with regard to backflow prevention, PIV, etc.
Be sure to check the local municipality's regulations. They can be more stringent than NFPA.
A side note. In the area of Florida I live in the fire protection design is considered a specialty and the S&S PE must be competent in the area. We (or the architect) usually sub out the design of the system to a certified fire suppression contractor. My design typically ends at a stubbed out valve from the main.