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TFP181 <br /> Page 3 of 6 <br /> FACE OF CLEARANCE HOLE Design <br /> �-SPRINKLER �- DIAMETER -+-� C�'I��I�Ii� <br /> Fll"fING , DIMENSIO�I C i e <br /> � I The TYCO Series RFII Concealed Pen- <br /> ��R!N�:;_� �J I dent Sprinklers are intended for fire <br /> � 5�PPORT CUP �- _ ��. .._._. , j protection systems designed in ac- <br /> �.���rJg��; _;i ' � cordance with the standard instal- <br /> ! � '--j, � � � � � lation rules recognized by the appli- <br /> , 2.;mm, I cable Listing or Approval aaency: for <br /> � THREADED � I I I ' p 9 <br /> exam le, UL Listin is based on NFPA <br /> __:______ � 13 and VdS Approval is based on the <br /> p HDJUSTMENT � � i - ____ CEA 4001. <br /> � -- <br /> �' FACE OF CEiuNG, ; ------- i For more information on LPCB and <br /> RETAINING RING ( --- VdS Approvals,contact Tyco Fire Sup- <br /> MOUNTING <br /> SURFACE ___----- pression & Building Products at the <br /> / following office: <br /> � � � � � Enschede,Netherlands <br /> ` Telephone:31-53-428-4444 <br /> i Fax:31-53-428-3377 <br /> , � � � � <br /> � � � � � The Series RFII Concealed Pendent <br /> �__� �- �' �--� Sprinklers are only tisted and approved <br /> � \ T 1 r with the Series RFII Concealed Cover <br /> 3/16"to 11/16" MANUFACTURER DEFLECTOR COVER PLATE <br /> (4,8 to 17,5 mm) PRESET GAP IN DROPPED REfAINER Plates having a factory applied finish. <br /> REFERENCE 3/32"(2,4 mm) POSITION ASSEMBLY � <br /> • <br /> COVER PLATE COVER PLATE i Do not use the Series RFII in applica- <br /> PROFILE DEPTH DIAMETER tions where the air pressure above <br /> DIMENSION B DIMENSION A the ceiling is greater than that be- <br /> low. Down drafts through the Sprin- <br /> kler/Support Cup Assembly can delay <br /> A:3-1/4 inches(82,6 mm) C:2-3/8 to 2-5/8 inches(60,3 to 66,7 mm) sprink/er operation in a fire situation. <br /> B:3/16 inches(4,8 mm) D:1-3/4 to 2-1/4 inches(44,5 to 57,2 mm) Operation <br /> FIGURE 2 When exposed to heat from a fire, the <br /> SERIES CONCEALED SPRINKLER INSTALLATION DIMENSIONS Cover Plate, normally soldered to the <br /> Retainer at three points, falls away to <br /> expose the Sprinkler/Support Cup <br /> Assembly. <br /> The Deflector—supported by the <br /> Guide Pins—then drops down to its <br /> operational position. <br /> The glass Bulb contains a fluid that ex- <br /> pands when exposed to heat. When <br /> the rated temperature is reached, the <br /> fluid expands sufficiently to shatter the <br /> � � glass Bulb,activating the sprinkler and � <br /> allowing water to flow. <br />