Title: TFP510_06_2015.pdf
Clearance Space In accordance with Section 8.4.9.2 of the 2010 edition of NFPA 13, when con- necting an area subject to freezing and an area containing a wet pipe sprinkler system, the clearance space around the sprinkler barrel of Dry-Type Sprin- klers must be sealed. Due to tempera- ture differences between two areas, the potential for the formation of conden- sation in the sprinkler and subsequent ice build-up is increased. If this con- densation is not controlled, ice build-upcan occur that might damage the dry- type sprinkler and/or prevent proper operation in a fire situation.Use of the Model DSB-2 Dry Sprin- kler Boot, described in Technical Data Sheet TFP591 and shown in Figures 14 and 15, can provide the recommended seal. Installation The TYCO Series DS-1 Dry-Type Sprin- klers, 5.6K Pendent, Upright, and Hori- zontal Sidewall, Quick Response (3 mm bulb) and Standard Coverage must be installed in accordance with this section.