They claim it is. Their data does not specifically say branch lines, but "fire suppression piping".
We had a situation where the engineer spec'd freeze protection and that was the ONLY way to do it. I won't bore you with details but trust me, nothing else would work. The local AHJ approved the use and we installed it. In our case the Freeze protection is predominantly unnecessary so I am not really worried about it. We did it to satisfy the engineer and avoid 20 deluge systems on a residential building (which was the other option). Remember where we live. We literally only need freeze protection once every several years if the pipe is installed concealed behind almost anything and the wind is not blowing directly over it. The last time we had a freeze where sprinkler systems were affected in significant quantities was approximately 10 years ago. And before that it was probably 10-12 years. Greg Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roland Huggins Sent: Monday, May 07, 2007 11:55 AM To: [email protected] Subject: Re: Electric Heat Tracing - Background The use of heat tape went through a major change for the 07 edition, Now there is criteria in the body that says heat tape shall be supervised and if used for branch lines, it shall be specially listed for branch lines. I haven't looked lately but the last time I looked there were no such listed products. Greg - was the Chromalox listed for BL's? As a side note, it still says SMALL UNHEATED AREAS can use antifreeze or heat tracing. I would say heat trace is intended to be used only for portions of a systems but considering there are antifreeze systems in freezers that are 1,000+ gallon systems, I guess small is relative. Roland On May 5, 2007, at 5:58 PM, Dave Phelan wrote: > Hello again all, > > Im looking for the wisdom and experiences off the list for projects > that > used electric heat tape for freeze protection. I currently have a > 13R-2002 > (metallic piped) project where the owner is looking to use the > Raychem XL > Self Regulating heat trace for supplemental freeze protection. The > piping > will be insulated as per the code but they want a belt and suspenders. > > Im looking for the code background as to why the appendix specifically > prohibits branchlines - rather forceful language I thought to be in > the > appendix and not the code itself but oh well. The project natually is > looking to heat trace the crossmains and branches up to the drops > for the > concealed pendants in the living space, hence my concern. > > The product is reportedly listed UL for Fire Protection piping but > I am > still awaiting all of that submission, in the mean time I need to > educate > myself as to the why's and why not's in the code and branchline > prohibition. > > Thank you once again. > > Dave P. > An AHJ in New Jersey > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:Sprinklerforum- > [EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
