But the "cure" (air leakage test performed every 3 years) is only cured when: a) its adopted b) its enforced.
Parallel to when an EOR leaves boiler plate in his spec for compliance with the "latest" edition of a particular code or standard. Why would you penalize the Owner's wallet for compliance with a more stringent code or standard when the AHJ hasn't? If there's an exception or change that came into a later code, any sharp-eyed Forumite would know to ask if they could apply a more recent code or standard, and properly apply the entirety of that document, assuming a reasonable AHJ. We recently received a bid pkg for a nursing home retrofit that cited "latest" when PA's DOH, like all nationally as I understand it, have NO option but to enforce the 1999 edition of NFPA 13- and no trying to sneak in a later standard, it cannot be accepted because CMS, the funding authority and hammer behind the Aug 2013 nursing home mandate for fully sprinklered, accepts NOTHING but the 99 edition of 13 with whatever TIAs were issued as of the date of CMS adoption of the 2000 LSC invoking 99 #13. Currently we here in PA have no obligation other than "risk management" to comply with any of the string of NFPA directives on AF since they're not part of the PA Uniform Construction Code. And we recently saw a set of our competitor's dwgs as I mentioned then, dry system grid installed in the 2000 or so. Signed off by a NICET Level IV, just as the grocery store designed to the largest room (other than the sales area that was ignored) and had 2- 2" city connections ganged together into two Lowe's swing checks and a 3/4" boiler drain for a ITC and main drain. A whole 67 gallons a minute protected this grocery with light hazard spacing. I'll give em credit that they used QR sprinklers, but passing a test and applying the standards to a job are two different things. TGIF George L. Church, Jr., CET Rowe Sprinkler Systems, Inc. PO Box 407, Middleburg, PA 17842 877-324-ROWE 570-837-6335 fax g...@rowesprinkler.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Roland Huggins Sent: Thursday, October 04, 2012 5:44 PM To: sprinklerforum@firesprinkler.org Subject: Re: Air Supply If you use nitrogen (7.6.2.7) it now kicks you over to 7.2.6.5 (Automatic Air Maintenance). Must admit, I see no reason to use an air tank and plenty not to (as George already said). I'd say an air cylinder would be not different than a nitrogen cylinder when it comes to requiring an AMD. If you do not have a low pressure alarm, the pressure gauge has to be checked weekly instead of monthly. Now that dry pipe system have to have an air leakage test performed every 3 years, there shouldn't be any systems (or at least as many) needing a compressor running full time to keep it from tripping. Roland On Oct 4, 2012, at 12:54 PM, Cahill, Christopher wrote: > Looking over a job where the EOR wants to use cylinders to supply the > air for a dry system. There is plenty of power to the building so > that's not the issue. They are showing lab air cylinders from both > air (NC) and nitrogen (NO) into an AMD into the system. I get > automatic air is not required. But I'm seeing NFPA 13 '12-7.2.6.5.1 > limiting air supply when AUTOMATIC to dependable shop system or a > compressor. I don't see bottles being allowed. Or that is to say I > don't see bottles as being a dependable shop system. > > I assume some of you have done bottles for the air to a dry system? > As I read you can have them if someone manually opens a valve and > refills the system when needed? Of course this is even confusing. > Is there something on a manual fill system that requires daily > checking? Or are they relying on the low pressure alarm to note when > time to refill? Actually, the low pressure alarm isn't even required, > right, so are they waiting for a system trip to know when to add air? > > If manual is allowed isn't an AMD off a bottle a little better but not > quite the full blown compressor? Why would they restrict the middle > on the order of worst to best? > > Who wants to straighten me out 'cuz none of us here have ever seen > bottles used on a system? > > Chris Cahill, PE* > Senior Fire Protection Engineer, Aviation & Facilities Group Burns & > McDonnell > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
