Antifreeze System NFPA 13 5

[EJP-21]

Hello guys i need help on something im not familiar with,

How do we calculate the required Gallon of antifreeze system the we need to mix with a wet sprinkler system?

I have an area of 17,000 sq.ft. of residential units and we need to provide antifreeze system on the highest floor. its pretty big floor area we have 2 standpipes on both ends.
we are using residential sprinklers of reliable.

Thank you and keep safe everyone

 

[TravisMack]

This is from the Tyco LFP data sheet?
>200 gal to ≤500 gal; in accordance with NFPA 13 using the dry system hydraulic design criteria, where the system hydraulics are designed as a dry system even though the system is filled with antifreeze

So, you have to do the 30% increase for dry system and C100. Also, if you are using specially listed attic sprinklers or something, you would have to follow the dry system criteria.

Travis Mack, SET, CWBSP, RME-G, CFPS
MFP Design, a Ferguson Enterprise

http://www.mfpdesign.com