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� � � � , � 1 MECHANICAL SYSTEM INSULATION � SECTION �15250 ' I � 1. PART 1 �IGENERAL i I 1.1 DESCRIPTION � ' A. Work Includes � i 1. Insulation of all new hot and cold piping located in mechanical rooms shall be as � scheduled herein or noted on the Drawings. All underground and interior piping shall j I be preinsulated as specified in Section 15510. Fittings shall be field insulated with � i pre-manufactured kits. 2. Insulate all valves, bodies,venturis,and chilled pump bodies. i 3. Provide aluminum jacket on new insulation on exterior piping. , 4. Insulation of all new hot and cold equipment. 5. Insulation of the emergency generator exhaust stack. I � 6. Insulation of inedium and low pressure ductwork. � I 1.2 �QUALITY ASSURANCE �� A. All insulation, jacket and adhesive shall have a fire and smoke hazard ratings as tested � � � under ASTM E-84, NFPA 255,and UL 723 not exceeding: ,I � � Flame Spread: 25 � ' I Fuel Contributed: 50 � Smoke Developed: 50 . � ,I jB. Exceptions: � i � Type B Insulation PVC Fittings Covers I 1.3 ISUBMITTALS !I I � iA. In accordance with Section 15010. _ � , a, �B. Product Data: '� ' � I I 1. Type A Insulation � � 2. Type B Insulation � i 3. Type F Insulation � � 4. Vinyl Lacquer Paint for Type B Insulation ; � 5. Metal Jacket I , I � ; 1.4 �DEFINITIONS � ! i �A. The term "Storm Drainage Conductor" refers to that portion of the storm drain interior to ! i the building, between the roof drain body and where the line goes below grade. ! I B. The term "plenums" shall mean a ceiling space or mechanical room which has only conditioned, return air and no outdoor air. Ventilated cavities are not plenums. I I � ' I � ' (97008-040497) 15250-1 ' � i � � � , � � �