RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

I’m pretty close to 20x20 in the most remote two rooms. From there by rooms drop to 12x12 and then closet size rooms. But having the ability to get 10’ off the walls in these units saves a TON of sprinklers. John Irwin DynaFire Inc. *From:* Sprinklerforum [mailto:

Re: [EXTERNAL] Interesting issue .. residential sprinklers ..

That’s why I mentioned if he had a true 20x20. I couldn’t figure why you would want to do that with a 4.9k sprinkler. But I figured he had project specific reasons. I like how the 2016 edition cleared that up. I had many battles with AHJs about using the criteria in chap 8 for spray

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Yeah I thought so as well but it’s one of those times when you think you are sure you know something and then can’t find it and question yourself … John Irwin DynaFire Inc. *From:* Sprinklerforum [mailto: sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of *Travis Mack *Sent:*

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Remember, if the room/compartment is 800 Sq Ft or less, you can average the spacing of the residential sprinkler(s) over the room. It will not be starting at 67 PSI. [cid:image001.png@01D362B1.78DAB950] Peter Schwab VP of Purchasing and Engineering technologies Wayne Automatic Fire

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Yes, 11.3 of the latest edition. From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Travis Mack Sent: Tuesday, November 21, 2017 7:11 AM To: sprinklerforum@lists.firesprinkler.org Subject: Re: [EXTERNAL] Interesting issue .. residential sprinklers .. Check

Re: [EXTERNAL] Interesting issue .. residential sprinklers ..

Check chapter 11. I don’t have the standard in front of me. But that has been in the standard for about 2-3 decades. Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to MFP Design via:

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

I thought we were talking about the standard spray. But you’re correct. It does look like Reliable has the residential option to allow me to be greater than 4” from the deck. I can’t find where NFPA 13 allows a 4 residential sprinkler calculation. I was starting to think that was only in 13R.

Re: [EXTERNAL] Interesting issue .. residential sprinklers ..

That gives you about 25 psi of friction loss. If you can make that work you are good with residential. Why 5-6 sprinklers if going with residential pendents? Are you not permitted to do the 4 residential sprinkler calc? Travis Mack, SET MFP Design, LLC "Follow" us on Facebook:

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Well I have not run the calc, but I’ll have a 750GPM pump at about 135PSI of head 100’ below this calc area. It looks like I will end up calculating 5 sprinklers … maybe 6 John Irwin DynaFire Inc. *From:* Sprinklerforum [mailto: sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of

Re: [EXTERNAL] Interesting issue .. residential sprinklers ..

If you are truly 20x20, then you are looking at 67 psi with the 4.9 vs 13 psi with something like a Tyco EC-11. Do you have enough pressure where 50 psi is of no issue? Travis Mack, SET MFP Design, LLC "Follow" us on Facebook: https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

True. From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of John Irwin Sent: Tuesday, November 21, 2017 7:46 AM To: sprinklerforum@lists.firesprinkler.org Subject: RE: [EXTERNAL] Interesting issue .. residential sprinklers .. Yes. That’s an option as well. I

RE: [EXTERNAL] Education Requirements for Fire Protection Industry

Yes, fire sprinkler contractors value education. As far as NICET certification… kind of. It’s necessary in some jurisdictions to have at least a NICET III stamp plans. And when it is time to hire someone new, knowing they are NICET certified at the very least gets a foot in the door. But if I

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Yes. That’s an option as well. I have a pump so I am not terribly worried about the demand. However the difference in price between a residential pendent and something like a Tyco EC-5 is over $10. And I’m looking at over 1,000 of these buggers. John Irwin DynaFire Inc. *From:*

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Residential sprinklers are “permitted” in dwelling units, not “required”, right? Couldn’t you use any one of a number of commercial QR extended coverage sprinklers? That might mess you up if you are trying to do a 4-sprinklers residential calc… or it could help because you could get a larger

RE: Interesting issue .. residential sprinklers ..

Check out the Tolco 22L2 Nick Maneen, SET c 704.791.7789 From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of John Irwin Sent: Tuesday, November 21, 2017 8:19 AM To: sprinklerforum@lists.firesprinkler.org Subject: RE: Interesting issue ..

RE: Interesting issue .. residential sprinklers ..

We have a winner! Thank you Taylor! John Irwin DynaFire Inc. *From:* Sprinklerforum [mailto: sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of *Taylor Schumacher *Sent:* Tuesday, November 21, 2017 8:05 AM *To:* sprinklerforum@lists.firesprinkler.org *Subject:* RE: Interesting

RE: Interesting issue .. residential sprinklers ..

We had a similar situation and used the Reliable F1RES49 Pendent, which has a listing of 4”-8” down. Hopefully you have good water. Taylor Schumacher, CET Security Fire Sprinkler P.O. BOX 7308 | St. Cloud, MN 56302-7308 3308 Southway Drive | St. Cloud, MN 56301 Office:

RE: 1" grooved pipe and couplings and 2" and below grooved pipe

We frequently thread up to 2" for ease of field modification. We have also had quality challenges with 1 ¼" welding. Pipe that small can get warped by the heat of welding. Matt From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Nick Maneen Sent: Monday,

Re: Interesting issue .. residential sprinklers ..

Concrete inserts to unistrut trapeze with unistrut pipe clamp run up tight to the deck? If you have a little flexibility solid rings to inserts is still pretty short and much cheaper. Short armovers (no hanger needed) rolled up into a 45 or similar to be tight to the deck? Mike Morey CFPS

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Nope. HSW is not an option. John Irwin DynaFire Inc. *From:* Sprinklerforum [mailto: sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of *Matt Grise *Sent:* Tuesday, November 21, 2017 7:33 AM *To:* sprinklerforum@lists.firesprinkler.org *Subject:* RE: [EXTERNAL] Interesting issue

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Any soffits over bathrooms or HVAC supply? We have done 20x20 sidewalls in places like this. Matt From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Ed.Tambini Sent: Tuesday, November 21, 2017 6:20 AM To: sprinklerforum@lists.firesprinkler.org Subject:

RE: [EXTERNAL] Interesting issue .. residential sprinklers ..

Use half of a riser clamp and put the pipe tight to the deck From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of John Irwin Sent: Tuesday, November 21, 2017 4:27 AM To: sprinklerforum@lists.firesprinkler.org Subject: [EXTERNAL] Interesting issue ..

Interesting issue .. residential sprinklers ..

I am working on a project with a lot of 20x20 rooms in dwelling units. I have a concrete deck so my piping will be exposed. I am trying to find a 20x20 solutions but keep running in to road blocks. Maybe someone has an idea. The way I see it, I need one of the following … I need a