2) Plans indicate heads to be installed center of tile (UNO). Isometric indicates flex piping. NFPA 13 9.2.1.3.3.2
Provide spec sheet for suspended ceiling tile grid showing it meets ASTM C 635.
NFPA 13 9.2.1.3.3.4 * Where flexible sprinkler hose fittings are used to connect sprinklers to branch lines in suspended ceilings, a label limiting relocation of the sprinkler shall be provided on the anchoring component.
An example of language for the label is as follows: CAUTION: DO NOT REMOVE THIS LABEL. Relocation of this device should only be performed by qualified and/or licensed individuals that are aware of the original system design criteria, hydraulic criteria, sprinkler head listing parameters, and knowledge of the state and local codes including NFPA 13 installation standards. Relocation of the device without this knowledge could adversely affect the performance of this fire protection and life safety system.
Tuesday, August 10, 2021 DF: I spoke with Carl Wright regarding this comment. I agreed to hold the review open until Thursday 08/12/21 noon before I will have to reject the plans.
Thursday, August 12, 2021 DF: Received spec sheets for the ceiling grid identifying it complies with NFPA 13 9.2.1.3.3.4.