Fire Alarm Control System System Operation Flow Approved by ULEnvironmental-Friendly Gas, HFC-227ea and FK-5-1-12 System Features & Applications Features UL listedEasy InstallationCost-effective due to various cylinder sizes Applications Computer room, Server RoomElectric: Transformer Room, Battery Room, Cable RoomTelecom related: Telephone Switch Board, Mobile Communication Base Station, Broadband Communication BaseMuseum, libraryWarehouse for oil relatedEngine Room, Control Room Downloads System System Layout Downloads System System Components Downloads