I don't think we need more info. The code doesn't say anything, it's perfectly fine. Want to play games put every other line on a different system. Sprinkler code doesn't even require separations of any kind unless using a room design method. Building Code separations are beyond us contractors pay grade.
And remember you only are calc'ing on system at a time. Yes a design density may have to extend 15' beyond to another system but you still only calc one system at a time. What might be interesting is say a 500 sq.ft. PA system within a regular wet. Technically you don't have to calc the extra 1,000 sq.ft. on the wet but you should. Now if she is questioning the EOR then more info is still not important nor is the code one way or another. The EOR doesn't need a reason, unfortunately. Craig's follow up comments are certainly relevant to the FPE'ing but still not related to the question does the code say no to splitting how ever you want. Smoke issue could be addressed (DIPA), wetting electrical stuff (PA with 20' overhang), oiled filled transformers might change the density but not an issue with splitting a system however you want. Chris Cahill, P.E. Fire Protection Engineer Sentry Fire Protection, Inc. 763-658-4483 763-658-4921 fax Email: [email protected] Mail: P.O. Box 69 Waverly, MN 55390 Location: 4439 Hwy 12 SW Waverly, MN 55390 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, January 13, 2010 2:59 PM To: [email protected] Subject: RE: mixed systems We need more info on what's going on and why. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Karen Purvis Sent: Wednesday, January 13, 2010 2:55 PM To: [email protected] Subject: mixed systems Where in the code does it say that you cannot mix systems in an area. In other words if I have a large room that a section of the room is separated by a chain link fence and one side has a wet system and the other side needs a preaction system. Where does it tell me I can't do that? Karen Purvis Senior Designer Facility Systems Consultants 713 South Central Street, Suite 101 Knoxville, TN 37902 ph.865-246-0164 fax 865-246-1084 _______________________________________________ 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)
