Think about what you wrote. If you tripped the system, the return bends would not be able to be drained. Return bends can only be used in an area not subject to freezing,
John John August Denhardt, P.E., FSFPE Strickland Fire Protection Incorporated 5113 Berwyn Road College Park, Maryland 20740 Office Telephone Number: 301-474-1136 Mobile Telephone Number: 301-343-1457 FIRE SPRINKLERS SAVE LIVES - Can you live without them? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of ampeck Sent: Friday, July 12, 2013 11:55 AM To: [email protected] Subject: Re: dry pnds off dry system Whether its a cooler or freezer if you're running a completely Dry System I don't see a reason why you can use standard heads on return bends as in the heated office. And your right, save a control valve and separate main piping. Correct me if I'm wrong but seems fine by me. On Jul 12, 2013, at 10:38 PM, Matt Grise <[email protected]> wrote: > I would be careful using a wet system even if it is called a "cooler". The > evaporation coils can blow out air that is below freezing in order to get the > whole cooler down to its target temp. > > Also- just because they say they will keep it at 41 does not mean that they > won't change their mind after it has been installed and dial it down. > > Matt Grisé PE*, LEED AP, NICET II > Sales Engineer > Alliance Fire Protection > 130 w 9th Ave. > North Kansas City, MO 64116 > > *Licensed in KS & MO > > 913.888.0647 ph > 913.888.0618 f > 913.927.0222 cell > www. AFPsprink.com > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Martinez, Dewayne > Sent: Friday, July 12, 2013 10:34 AM > To: [email protected] > Subject: RE: dry pnds off dry system > > The building footprint is 3800sf so I could eliminate a control valve > and a main by staying all dry. > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Friday, July 12, 2013 10:12 AM > To: [email protected] > Subject: RE: dry pnds off dry system > > If it's a "cooler" and not subject to freezing you can put a wet system > in it. > > Ron F > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Martinez, Dewayne > Sent: Friday, July 12, 2013 8:15 AM > To: [email protected] > Subject: dry pnds off dry system > > I have a small building which has both unheated / heated spaces. I am > going to run the entire building as a dry system with standard pnd heads > on return bends in the heated areas with ceilings. There is a cooler in > the heated area that will need sprinkler protection in. Can I still put > standard pnds on return bends (in the heated area) for the cooler or do > I need to drop dry pnds? > > Thanks, > > Dewayne > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler > .org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler > .org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
