Most of the time it depends on the arrangement of the evaporators in the freezer and rack layouts. When the HVAC units are hung down the center you can most times access the walls for HSW's but if the evaps are down the sides you can often use dry pendants in the ceilings.
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 [email protected] Sent: Thursday, October 29, 2009 4:31 AM To: [email protected] Subject: Re: walk in freezers In central Puget Sound I am used to seeing dry pendant sprinklers used in freezers. I've seldom seen sidewalls used. Bruce Verhei ----- Original Message ----- From: "Forest Wilson" <[email protected]> To: [email protected] Sent: Wednesday, October 28, 2009 9:09:55 PM GMT -08:00 US/Canada Pacific Subject: Re: walk in freezers This came up on a recent job. The GC said that everyone else does it, so why can't we? I told them they would need to sign a waiver and obtain Building Official approval. The problem is the fact that everyone else is doing it, as you reference. They are setting a false standard. I stood my ground and won the battle with the GC. At the close of the project, there was a meeting with the Architect called "Lessons Learned" which all subcontractors were asked to attend. I suggested that they invest in consulting a FPE to review their plans for matters such as this. They replied that the jobs are bid design build for fire protection. I didn't bother explaining that the individual that prepares my shop Drawings is a Fire Sprinkler Layout Technician and not a Designer/PE and that most sprinkler companies do not employ PEs. If your customer would have consulted an FPE prior to bid, the PE may have said that we need room to run piping along the freezer. Pretending the problem doesn't exist is not the best solution, I would tell them you need room to run the pipe unless they want to pay extra for a dry system or antifreeze. Also, if you use the large K factor dry sidewalls they zany store within 36" of ceiling? Most owners would decline that option. Forest Wilson Project Manager Cherokee Fire Protection Co. 3195 Dayton Xenia Rd Ste 900 Dayton OH 45434 ph: 937-376-2333 fx: 614-455-4324 cell: 937-307-5647 . Visit our blog: www.cherokee-fire.blogspot.com NOTICE: The information contained in this email is intended to be solely for the use of the named individual or entity to which it is directed and may contain information that is privileged or otherwise confidential. It is not intended for transmission to, or receipt by, anyone other than the named addressee (or a person authorized to deliver it to the named addressee). It should not be copied or forwarded to any unauthorized persons. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email or by calling Cherokee Fire Protection Co. at 888-347-3079 toll free. -----Original Message----- From: Jack Leadbetter <[email protected]> To: [email protected] <[email protected]> Cc: <[email protected]> <[email protected]> Sent: Wed, 28 Oct 2009 19:27:18 -0400 Subject: Re: walk in freezers You have to do it correctly-period! Sent from Jack Leadbetter's iPhone On Oct 28, 2009, at 7:13 PM, "Tom Duross" <[email protected]> wrote: > Guilty > > George Church > > > Subject: walk in freezers > > OK, honesty time here. None of the companies I worked for in the past > ever adhered to the 10x10 spacing rules for sidewalls in walk-in > freezers and coolers. > > > > Is this common? I know that many times you can't feasibly put heads > down the side and are forced to install them in the end making the > coverage length well over 10'. > > > > Comments? > > > > Greg McGahan > > _______________________________________________ > 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:Sprinklerforum- > [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) _______________________________________________ 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)
