One of my friends is doing the ESFR sprinkler system design for a high rack storage area without central heating. He wants to know how could we protect the system without frozen? Does NFPA standards have related specifications?
May need to use different design/ and sprinkler head
Maybe 10 to 20 degree below zero.
Sounds like cannot be done new design with different heads.
now in the old days food grade anti freeze, and fill the system lots of money though.
A possibility is to install a false ceiling above the storage, install ESFR dry sprinklers and only heat the space above the false ceiling. Other than that, the solution would be a dry control mode (CMSA/CMDA) system.
Thermostatically controlled electric resistance heat trace tape on the pipes in the cold section.
XtremeFLEX® Heating Tapes and Cords - Heaters - Products
Retrieving data ...