Listed Expansion Device
A sprinkler system is a critical system to ensure fire and life safety in the built environment. Every now and then there are modifications made to the system that affect the performance of the system. Following NFPA 13 when installing and inspecting sprinkler systems is critical. In addition manufactures provide detailed requirements for devices based on the device listing.
This system was subject to many complaints by the occupants as a the colored fluid would leak from various fittings and sprinklers.
This is a picture of the riser assembly located on the exterior of the building and utilizes anti-freeze throughout the piping. The system utilizes CPVC piping in the building, so the question for you does this meet code?