602.2.1.2 Plastic fire sprinkler piping exposed within a plenum shall be used only in wet pipe systems with a peak optimal density not greater than 0.50, an average optical density greater than 0.15, and a flame spread not greater than 5’ when tested in accordance with UL 1887. Piping shall be listed and labeled. ________________________________ From: Brian Harris <bhar...@bvssystemsinc.com> Sent: Monday, February 5, 2024 3:00 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [Sprinklerforum] Re: Return Plenum
You don't often get email from bhar...@bvssystemsinc.com. Learn why this is important<https://aka.ms/LearnAboutSenderIdentification> ⚠ CAUTION: External Email Steel Thank you, Brian Harris, CET BVS Systems Inc. From: Fpdcdesign <fpdcdes...@gmail.com> Sent: Monday, February 5, 2024 4:58 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [Sprinklerforum] Re: Return Plenum Steel or CPVC? On Feb 5, 2024 at 4:56 PM, <Brian Harris<mailto:bhar...@bvssystemsinc.com>> wrote: Is there anywhere in code that says sprinkler pipe is not allowed in a space above a ceiling being used as a return air plenum? I know we’ve done it before but now have a superintendent telling us it’s not allowed on his job….. Drawings were approved, centerlines clearly called out. Nothing on the contract drawings saying the space is off limits, etc. Thank you, Brian Harris, CET BVS Systems Inc. bvssystemsinc.com<https://urldefense.com/v3/__http://bvssystemsinc.com/__;!!Lat9tvSZzw!mb_buJmVjisVx6CV3rBRZV1dNdL1TpgnQ7SxIf80qqZ6XWWrD2UVeILiYbU7l05FBt37sEddjEPf651b1zGqbero_lI$> Phone: 704.896.9989 Fax: 704.896.1935 _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://urldefense.com/v3/__https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org__;!!Lat9tvSZzw!mb_buJmVjisVx6CV3rBRZV1dNdL1TpgnQ7SxIf80qqZ6XWWrD2UVeILiYbU7l05FBt37sEddjEPf651b1zGqQYYsN68$> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org>
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