How many coolers can be turned into freezers using the same refrigeration equipment? The refrigeration units in coolers don't usually have the BTU capacity to bring the temp down to 28F and keep it there. We have installed hundreds of wet systems in 34F/35F coolers and have never had a freeze up. 13 says that it has to be below 40f "and" subject to freezing, it doesn't say "or" subject to freezing.
Ron F -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matt Grise Sent: Friday, July 12, 2013 8:39 AM To: [email protected] Subject: RE: dry pnds off dry system 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
