Sprinkler RAPID RESPONSE Series

The TYCO RAPID RESPONSE Series LFII Residential Pendent, Recessed Pendent, and Concealed Pendent Sprinklers (TY4234) are decorative, fast response, frangible bulb sprinklers designed for use in residential occupancies such as homes, apartments, dormitories, and hotels. When enhanced flow characteristics for residential portions of any occupancy per NFPA 13 is the major consideration, the Series LFII (TY4234) should be the first choice. When higher flow demands are required for residential sprinklers used in an NFPA 13 design, the large 6.9 K-factor of the Series LFII (TY4234) is an attractive choice. Although mostly intended where residential sprinklers are to be used in an NFPA 13 design, the Series LFII (TY4234) can also be used in wet pipe residential sprinkler systems for one- and two-family dwellings and mobile homes per NFPA 13D, and wet pipe residential sprinkler systems for residential occupancies up to and including four stories in height per NFPA 13R. The recessed version of the sprinkler is intended for use in areas with finished ceilings. It employs a two-piece Style 30 Recessed Escutcheon. The Recessed Escutcheon provides 1/4 in. (6,4 mm) of recessed adjustment or up to 1/2 in. (12,7 mm) of total adjustment from the flush mounting surface posi tion. The adjustment provided by the Recessed Escutcheon or Concealed Cover Plate provides a measure of flexibility with regard to which the length of fixed pipe drops to the sprinklers must be cut. The concealed version utilizes a cover plate assembly that conceals the sprinkler operating components above the ceiling.