Re: FDC & Pump

2018-02-02 Thread Travis Mack
Yes. You can’t have an FDC on the supply side of a pump. So regardless of when they are installed, it needs to comply with the standards. 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:

Dry Riser in Stairwell

2018-02-02 Thread James Litvak
Can a dry riser be installed in a stairwell, provided there are no clearance issues? I know there is a building code section that doesn't allow any systems in a stairwell that don't serve the stairwell, but I don't know the exact section to check the language. The way I'm looking at it, a dry

RE: 3-Hour Rated Walls

2018-02-02 Thread MFP Design, LLC
Make sure you can get a sleeve/caulk combo to give the 3 hour rating. That may be a challenge to find. Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:tm...@mfpdesign.com

Re: FDC & Pump

2018-02-02 Thread Kenneth Berman
If I have an existing FDC at the hot box and add a pump later, then the FDC must be moved to the pumphouse? On Fri, Feb 2, 2018 at 6:29 AM, Dewayne Martinez < dmarti...@total-mechanical.com> wrote: > Tom, > > Are you saying that if I put a control valve for the standpipe feed at the > riser

3-Hour Rated Walls

2018-02-02 Thread Brian Harris
Is there anything that precludes passing pipe thru a 3-hour rated wall? I don't see anything in 13 that says you can't, we'd obviously fire calk the holes. Brian Harris, CET BVS Systems Inc. Design Manager bvssystemsinc.com Phone: 704.896.9989 Fax: 704.896.1935

RE: FDC & Pump

2018-02-02 Thread Dewayne Martinez
Tom, Are you saying that if I put a control valve for the standpipe feed at the riser manifold and the FDC is connected to the riser manifold that I must also connect the FDC downstream of the standpipe feed control valve? Is that in 14? I have had a couple of AHJ’s make me put a control valve

RE: 3-Hour Rated Walls

2018-02-02 Thread Steve Leyton
And look closely because there are sometimes different values for F and T and also for floors and walls. Check with the AHJ to be sure the local BO will accept the proposed assembly if you're not sure. SL From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf

RE: FDC & Pump

2018-02-02 Thread Steve Leyton
If leaving it at the hot box (backflow?) means that you’d be pumping into the pump, then yes you’d have to move it. SL From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Kenneth Berman Sent: Friday, February 02, 2018 5:04 AM To:

Re: 3-Hour Rated Walls

2018-02-02 Thread Tom Scheidel
Hilti Fire Stop, STI Fire Stop, and 3M Fire Stop all have solutions for that. They also provide ways of calculating exactly how to do it and document for how to prove compliance. The Fire Stop Contractors International Association has a list of people in your area that can help you. Hilti,

Shield for electrical equipment

2018-02-02 Thread Bob
Has anyone installed a hood/ shield for electrical equipment? Can this be something as simple as a sheet metal pan that covers the width and depth? Suggestions, pictures, or name calling would be appreciated. Thank you, Bob Knight, CET III 208-318-3057 FBK-LOGO-SMALL

RE: 3-Hour Rated Walls

2018-02-02 Thread Brian Harris
Yeah I've got a call in to the AHJ now. Thanks. Brian Harris, CET BVS Systems Inc. bvssytemsinc.com From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Steve Leyton Sent: Friday, February 02, 2018 10:43 AM To:

RE: Dry Riser in Stairwell

2018-02-02 Thread Matt Grise
That’s a question for your local building official. The code section you are looking for specifically exempts sprinkler piping… depending on how you read it. Some around here say “no way”. Others don’t mind. Matt From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On

Re: 3-Hour Rated Walls

2018-02-02 Thread AKS-Gmail-IMAP
Sometimes a 3-hour rated wall is the boundary between two separate buildings in the code sense. If that is the case then the pipe should not be a sprinkler system protecting one building that is crossing over to protect all or part of the other building. Allan Seidel St. Louis, MO > On Feb

RE: FDC & Pump

2018-02-02 Thread Steve Leyton
What valve are you referring to as “standpipe feed” control? Are you talking about the isolation valves required in 6.3.2? If that’s the valve you’re referring to, then no you do not have to pump downstream of that (those) valve(s). The foregoing is my opinion only and is not intended to

RE: 3-Hour Rated Walls

2018-02-02 Thread Brian Harris
Thanks Tom ! Brian Harris, CET BVS Systems Inc. bvssytemsinc.com From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Tom Scheidel Sent: Friday, February 02, 2018 10:45 AM To: sprinklerforum@lists.firesprinkler.org Subject: Re:

RE: 3-Hour Rated Walls

2018-02-02 Thread Steve Leyton
I respectfully disagree. The most common application of a 3-hour separation that we see in the Southwest is the horizontal separation of the residential portion and the S/B occupancies in podium buildings. In those instances we ALWAYS have a single system, whether it’s configured as separate

Re: 3-Hour Rated Walls

2018-02-02 Thread Ron Greenman
In Seattle, at least at one time, and not likely to still be the case, separate buildings, on separate lots, that abutted each other could use a common three-hour wall and they could even communicate as long as they were a 1 1/2 hour firewall on either side. These are some very old (by Western

RE: Shield for electrical equipment

2018-02-02 Thread Michael Goodis
I have to agree with Matt here. If it is with-in 18" below the sprinklers it is considered an obstruction, if it is just under the piping, it does not allow for the water pattern to properly form to cover the room as the sprinklers are designed. Regards, Michael Goodis Salesman,

RE: Shield for electrical equipment

2018-02-02 Thread Matthew J Willis
Or.., what if it's the panel on fire?? Sent from my Verizon 4G LTE Droid On Feb 2, 2018 12:05 PM, Michael Goodis wrote: I have to agree with Matt here. If it is with-in 18” below the sprinklers it is considered an obstruction, if it is just under the piping, it does not allow

RE: Shield for electrical equipment

2018-02-02 Thread Pete Schwab
This requirement has been removed in the 2019 edition. Peter Schwab VP of Purchasing and Engineering technologies Wayne Automatic Fire Sprinklers Inc. 222 Capitol Court Ocoee, Fl 34761 Mobile: (407) 468-8248 Direct: (407) 877-5570 Fax: (407) 656-8026

Re: Shield for electrical equipment

2018-02-02 Thread Matthew J Willis
I still sleeve pipe because I disagree with the shield allowance. To me it is an obstruction For your case, I would defer that to electrical folks as we do not know their requirements per se. R Matt Sent from my Verizon 4G LTE Droid On Feb 2, 2018 11:36 AM, Bob wrote:

Re: Dry Riser in Stairwell

2018-02-02 Thread Bruce Verhei
James Assuming the stairwell landings are designed large enough from the start, I’d put this as preferred location. -I’ve never seen anyone cut, weld, or use a mechanical hanger to attach some third system to a standpipe in a stairwell. -The entire system is easily seen for inspection.

RE: FDC & Pump

2018-02-02 Thread Dewayne Martinez
No, I have had to put an extra control valve for the standpipe feed at point of connection to the riser manifold in addition to the standpipe isolation valves. The AHJ’s reasoning was that if work was required on the feed pipe it could be isolated and wouldn’t affect the other systems on the

Re: Shield for electrical equipment

2018-02-02 Thread Bruce Verhei
Peter, By 2019 ed. I assume you mean NEC? Best. Bruce Verhei > On Feb 2, 2018, at 11:20, Matthew J Willis wrote: > > Or.., what if it's the panel on fire?? > > Sent from my Verizon 4G LTE Droid > On Feb 2, 2018 12:05 PM, Michael Goodis wrote: > I

RE: FDC & Pump

2018-02-02 Thread Steve Leyton
Why not proposed valves every 50’ or so to be sure that you can isolate down to the smallest section(s) of pipe for potential interruptions? (SMH) If the intent is to work on the feed pipe then how far down the line would you have to put the FDC to arrange it so it wouldn’t be interrupted?

RE: Shield for electrical equipment

2018-02-02 Thread Micah Davis, SET
Bob I've had to do it a few times. I usually get with the HVAC guys on the project and work with them to fabricate it. Simplest ones are like the drip pans they use for condensation on HVAC units. Definitely want to clear it with the electrical inspector first though to make sure he will

Re: Shield for electrical equipment

2018-02-02 Thread Phillips, Mark
Are we maybe describing drip pans under pipe in electrical room? Military jobs like this in their specs It's usually sheet metal bent into a u shape a inch or so wider than pipe. Hung separately but touching bottom of pipe. No obstruction Unless I am misunderstanding Sent from my Verizon,

RE: Shield for electrical equipment

2018-02-02 Thread Bob
Mark, Thanks for the info. This room is about 17’ long and has two 2” lines through it. The way the building was laid out there was no way to get from one side to the other without going through the electrical room. Thank you, Bob Knight, CET III 208-318-3057 From: Sprinklerforum

Re: Shield for electrical equipment

2018-02-02 Thread Phillips, Mark
Bob Most cases it's only one or two lines in a small room. Usually it's just easier to run the length of the pipe till it exits room. If there is a drip then the water is displaced completely out of the area. Sent from my Verizon, Samsung Galaxy smartphone Mark Phillips Vice President of

RE: Shield for electrical equipment

2018-02-02 Thread Bob
Mark, When installing this, does it need to run the entire length of the pipe or just where the pipe passes over the electrical equipment? Thank you, Bob Knight, CET III 208-318-3057 From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Phillips,