Tyco has the DS-1 dry upright to 48", that would give you about 36" useable height above insulation. If that is not enough we've built small vertical chases with Dry HSW adjacent to the units. These chases must be well insulated, and open to the ambient heat from below. We've installed a false return air grill at the bottom to ensure that the heat could get into the chase, and let hot air rising and cold air falling do the rest.
As far as listing goes since 8.6.5.1 allows the use of QR both of these should work as they can both be QR. Additionally the DS-1 is available up to 286'F so the summer attic temp should not be a problem. Thom -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matt Grise Sent: Friday, August 20, 2010 8:46 AM To: '[email protected]' Subject: RE: 13D attic Fuel-fired protection -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Friday, August 20, 2010 9:45 AM To: [email protected] Subject: 13D attic Fuel-fired protection In those areas with cold weather and 13D in place, has anyone come up with a resolution for protecting a head above the fuel fired furnace in an unconditioned attic space short of walling it off so a wet pipe could be safe? We certainly want to minimize the impact at this critical time in our IRC mandate here in PA, so that we can provide the builders and homeowners with an affordable, smooth transition to a sprinklered Commonwealth. Losing AF is quite a blow, even if its temporary (I hope!) for areas where 50-50 works. It'd take a really tall dry upright, past the listing limitation. From: George Church [mailto:[email protected]] Sent: Friday, August 20, 2010 10:39 AM To: 'Tim Knisely' Subject: RE: Sprinkler question... Without antifreeze, its seal it in and pop a wet head in it, or install a tiny dry system. I'm confident that the additional testing will soon allow premix 50-50 solutions and we'll be back to a small AF loop for a head in the attic atop the unit. I would argue passionately that sticking a furnace in an attic does NOT make the space conditioned sufficiently for a wet pipe to survive a winter around here. Tyco now has a CPVC dry system and residential dry pendents, but that's a huge expense for a single head. Even an AF loop with the RPZ and associated backflow and fluid maintenance chores introduces too much complexity for 13D IMHO. We should be thinking of these as Install and Forget- because that is what will happen. Will check around- I'm posting this to the AFSA Sprinkler Forum to see if anyone has additional thoughts. George Church' Rowe Sprinkler [email protected] 570-837-7647 From: Tim Knisely [mailto:[email protected]] Sent: Friday, August 20, 2010 8:46 AM To: 'George L. Church Jr.' Subject: Sprinkler question... George, With sprinklers now required in unfinished attics where a fuel-fired appliance is located, what is the preferred method to keep this from freezing? I've heard some people say that the space is now heated and the head won't freeze. But, I'm not sure if some of the newer high-efficiency furnaces put off that much heat. One option is to frame in a room to capture the heat, but curious to see what some others might be. Thanks. Tim E. Knisely, Senior Fire Inspector Centre Region Code Administration 2643 Gateway Drive, Suite #2 State College, PA 16801 (814) 231-3058 (814) 231-3088 Fax E-mail: [email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
