Worldwide www.tyco-fire.com Contacts Series DS-C Dry Type Sprinklers 5.6K Concealed Pendent Standard and Quick Response, Standard Coverage General Description TYCO Series DS-C Dry Type Sprinklers, 5.6K Concealed Pendent, Standard (5 mm Bulb) and Quick Response (3 mm Bulb) and Standard Coverage, are decorative sprinklers featuring a flat cover plate designed to conceal the sprinkler. This type of sprinkler is typically used to provide a sprinkler drop from an unheated attic into an area where aesthetics is a concern, such as nursing homes, restaurants, and schools. Each unit includes a Cover Plate Assembly that conceals the sprinkler operating components above the ceiling. The separable two-piece design of the Cover Plate and Support Cup Assemblies allows installation of the sprinklers and pressure testing of the fire protection system prior to installation of a suspended ceiling or application of the finish coating to a fixed ceiling. They also permit removal of suspended ceiling panels for access to building service equipment without having to first shut down the fire protection system and remove sprinklers. Also, the separable two-piece design of the Sprinkler provides for 1/2 in. (12,7 mm) of vertical adjustment. Series DS-C Sprinklers are shipped with a Disposable Protective Cap. The Protective Cap is temporarily removed for installation, and then it can be replaced to help protect the sprinkler while the IMPORTANT Refer to Technical Data Sheet TFP2300 for warnings pertaining to regulatory and health information. Always refer to Technical Data Sheet TFP700 for the “INSTALLER WARNING” that provides cautions with respect to handling and installation of sprinkler systems and components. Improper handling and installation can permanently damage a sprinkler system or its components and cause the sprinkler to fail to operate in a fire situation or cause it to operate prematurely. ceiling is installed or finished. The tip of the Protective Cap can also be used to mark the center of the ceiling hole into plaster board and ceiling tiles by gently pushing the ceiling product against the Protective Cap. When the ceiling installation is complete the Protective Cap is removed and the Cover Plate Assembly installed. NOTICE Series DS-C Dry Type Concealed Pendent Sprinklers described herein must be installed and maintained in compliance with this document and the applicable standards of the NATIONAL FIRE PROTECTION ASSOCIATION (NFPA), in addition to the standards of any authorities having jurisdiction. Failure to do so may impair the performance of these devices. The owner is responsible for maintaining their fire protection system and devices in proper operating condition. Contact the installing contractor or product manufacturer with any questions. Series DS-C Dry Type Concealed Pendent Sprinklers must only be installed in fittings that meet the requirements of the Design Criteria section. Sprinkler Identification Numbers (SINs) TY3535 - 3 mm Bulb TY3555 - 5 mm Bulb Technical Data Discharge Coefficient Temperature Ratings 155°F (68°C) Sprinkler with 139°F (59°C) Cover Plate 200°F (93°C) Sprinkler with 165°F (74°C) Cover Plate See Ordering Procedure section Physical Characteristics Inlet ���������������������������������������������������������� Copper Plug ��������������������������������������������������������� Copper Yoke. . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel Casing. . . . . . . . . . . . . . Galvanized Carbon Steel Insert ���������������������������������������������������������Bronze Bulb Seat �������������������������������������� Stainless Steel Bulb ������������������������������������������������������������� Glass Deflector ���������������������������������������������������Bronze Frame �������������������������������������������������������Bronze Guide Tube ���������

Operation When TYCO Series DS-C Dry Type Concealed Pendent Sprinklers is in service, water is prevented from entering the assembly by the Plug with Gasketed Spring Plate Seal (see Figure 1) in the Inlet of the Sprinkler. PLUG WITH GASKETED SPRING PLATE SEAL When exposed to heat from a fire, the Cover Plate, which is normally soldered to the Retainer at three points, falls away to expose the Sprinkler Assembly. At this point the Deflector supported by the Guide Pins drops down to its operational position. The glass bulb contains a fluid that expands when exposed to heat. When the rated temperature...

SPRINKLER FITTING (REFER TO DESIGN CRITERIA SECTION) FACE OF SPRINKLER FITTING ORDER LENGTHS: 5" (127,0 mm) to 48" (1219,2 mm) IN 1/4" (6,4 mm) INCREMENTS SPRINKLER SUPPORT CUP ASSEMBLY FACE OF CEILING, RETAINING RING MOUNTING SURFACE DEFLECTOR IN DROPPED POSITION COVER PLATE RETAINER ASSEMBLY FIGURE 2 SERIES DS-C STANDARD COVERAGE DRY-TYPE CONCEALED PENDENT SPRINKLER INSTALLATION DIMENSIONS 2-1/2" DIA. (63,5 mm) CLEARANCE HOLE FIGURE 3 DISPOSABLE PROTECTIVE CAP ALIGN ARROWS WITH FRAME ARMS ACCEPTS 1/2" SOCKET DRIVE FIGURE 4 RFII SPRINKLER WRENCH

Design Criteria TYCO Series DS-C 3 mm bulb-type Dry Type Concealed Pendent Sprinklers (TY3535) are UL and C-UL Listed as quick response, standard spray sprinklers for use in accordance with the current NFPA standard. Series DS-C 5 mm bulb-type Dry Type Concealed Pendent Sprinklers (TY3555) are UL and C-UL Listed as standard response, standard spray sprinklers for use in accordance with the current NFPA standard. Series DS-C Dry Type Sprinklers are only listed when installed with Series RFII Concealed Cover Plates having a factory-applied painted or metallic finish. Series DS-C Dry Type Sprinklers...

Installation TYCO Series DS-C Dry Concealed Pendent Sprinklers must be installed in accordance with this section. Series DS-C Dry Type Concealed Pendent Sprinklers must only be installed in fittings that meet the requirements of the Design Criteria section. See the Design Criteria section for other important requirements regarding piping design and sealing of the clearance space around the Sprinkler Casing. Do not install any bulb type sprinkler if the bulb is cracked or there is a loss of liquid from the bulb. With the sprinkler held horizontally, a small air bubble should be present. The diameter...