Thanks. My customer and I finally got on the same page and we are using
maximum area for the sprinkler which leads to the 4+4 that I was
originally thinking.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
On 10/13/2015 10:41 AM, James Crawford wrote:
2013 edition handbook
Thank you
James Crawford
Phaser Fire Protection Ltd.
Phone 604-888-0318
Fax 604-888-4732
Cel 604-790-0938
Email [email protected]
-----Original Message-----
From: Sprinklerforum [mailto:[email protected]]
On Behalf Of Travis Mack, SET
Sent: Tuesday, October 13, 2015 10:19 AM
To: [email protected]
Subject: Re: Tyco EC-25 CMSA requirements
What edition of 13 are you using?
From 2013 edition, nothing is 16.2.2.3 gets you to maximum areas that I can
see:
*16.2.2.3 *Protection shall be provided as specified in Table 16.2.2.1 or
appropriate NFPA standards in terms of minimum operating pressure and the
number of sprinklers to be included in the design area.
And Chapter 24 only goes to 24.2
I agree with the information you are stating to use maximum area. I just
need to be able to provide it to the customer.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
On 10/13/2015 10:08 AM, James Crawford wrote:
Section 16.2.2.3 send you to 24.4.4.2.1 and in the hand book it says
to use the maximum allowable spacing per sprinklers.
Thank you
James Crawford
Phaser Fire Protection Ltd.
Phone 604-888-0318
Fax 604-888-4732
Cel 604-790-0938
Email [email protected]
-----Original Message-----
From: Sprinklerforum
[mailto:[email protected]]
On Behalf Of Travis Mack, SET
Sent: Tuesday, October 13, 2015 9:51 AM
To: [email protected]
Subject: Re: Tyco EC-25 CMSA requirements
Yes..that is exactly it. The area of the remote area is the driving
factor.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
On 10/13/2015 9:49 AM, Cliff Whitfield wrote:
The question is - what is your 'total sq footage' based on? The sq
footage of the actual sprinkler spacing (1120 sf) or of the spacing
based on 14 x 14 coverage per head (1568)?
Cliff
-----Original Message-----
From: Sprinklerforum
[mailto:[email protected]]
On Behalf Of James Crawford
Sent: Tuesday, October 13, 2015 10:44 AM
To: [email protected]
Subject: RE: Tyco EC-25 CMSA requirements
See NFPA #13 2013 ed section 16.2.2.3 in the handbook give a good
explanation on this and it would be 4x4.
The square root of your total square footage time 1.2 divided by the
distance between the heads.
47.41 divided by 13.42 = 3.54 or 4 heads
Trust this helps
Thank you
James Crawford
Phaser Fire Protection Ltd.
Phone 604-888-0318
Fax 604-888-4732
Cel 604-790-0938
Email [email protected]
-----Original Message-----
From: Sprinklerforum
[mailto:[email protected]]
On Behalf Of Travis Mack, SET
Sent: Tuesday, October 13, 2015 9:10 AM
To: [email protected]
Subject: Tyco EC-25 CMSA requirements
When using the EC-25 as a CMSA sprinkler (current spacing 10-5 X
13-5), the criteria for our application is 8 sprinklers at 40 psi.
When calculating, do you calculate 4+4 or do you do 3+3+2? Tyco's
data sheet does not give guidance, nor does NFPA 13, Chap 21.
I've been told use 1.2 * Sqrt (area). But is that the area based on
max coverage of 14x14 (8*196 = 1568) or do you use area per sprinkler
(140*8 = 1120).
The difference is that at 1568, my length down remote area is 48'
which requires 4x2. The 1120 is 40. This is a weird configuration,
so my heads are spaced at 13-5 on center. As such, that puts me at 3
sprinklers per line.
In this particular project, much of the piping is existing, and the
difference is 17 psi between the 4+4 and 3+3+2. That difference
requires removing existing 6" piping and replacing with existing 8"
piping.
Does anyone have any guidance on this? My gut is that it is 4+4. My
customer is saying it is 3+3+2.
--
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole Drive
Gilbert, AZ 85298
480-505-9271
fax: 866-430-6107
email:[email protected]
http://www.mfpdesign.com
https://www.facebook.com/pages/MFP-Design-LLC/92218417692
Send large files to us via: https://www.hightail.com/u/MFPDesign
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