I completely agree, but why aren't the non-fluorescent lights addressed for non-residential areas? When we tell a customer the sprinkler needs to be moved away from the light and they ask for a code reference what do you tell them? In this market you can't always sell preferences or looks. When we know it shouldn't be right next to it.
Thanks, Eric Tysinger CET NICET III - 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 x1751 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of craig.pr...@ch2m.com Sent: Tuesday, May 11, 2010 1:33 PM To: sprinklerforum@firesprinkler.org Subject: RE: Fluorescent light fixtures and HVAC diffusers should not be confused as far as heat output. Typically as said before in a 2x2 grid ceiling the Architect likes to see heads in centers of tiles. If you do not have that restriction then do whatever works but realize that a consistent spacing from the edge of the grid makes for a better looking / less offensive appearing system from the A/E and owner perspective. Noting that in odd shaped rooms it can often be a challenge to make the system work AND make people happy. But there's nothing more aggravating to the architect than some random shotgun approach to head spacing. Usually I try to stay no less than 6" off the grid whenever possible if I have no Center-of-tile mandate. But the fluorescent fixture poses no heat issue in regards to the sprinkler. Now an incandescent fixture, MV, MH or Halogen, different story. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 craig.pr...@ch2m.com http://www.ch2m.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Eric Tysinger Sent: Tuesday, May 11, 2010 1:23 PM To: sprinklerforum@firesprinkler.org Subject: RE: Look at the requirement for 155F sprinklers in relation to hot air diffusers. 8.3.2.5 (c) - Residential areas require 24" for ceiling mounted diffusers. 8.3.2.5 (a) - Non-Residential areas require 12" for ceiling mounted diffusers. Why the difference? Actually 8.3.2.5(c) reads "residential areas" not residential sprinklers. Thanks, Eric Tysinger CET NICET III - 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 x1751 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Richard Carr Sent: Tuesday, May 11, 2010 1:08 PM To: sprinklerforum@firesprinkler.org Subject: RE: Yes it does but with no other guidelines to go by I always used it as a minimum to keep the heads away, figuring the Residential heads and QR heads have different spray patterns but should still react the same to a heat from a light fixture. Richard Carr, SET Design Manager Associated Sprinkler Co., LLC 336.373.3901 ext 217 richa...@associatedsprinkler.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Eric Tysinger Sent: Tuesday, May 11, 2010 12:52 PM To: sprinklerforum@firesprinkler.org Subject: RE: 8.3.2.5(c) is for residential sprinklers. Worth indicates light hazard/quick response. 8.3.2.5(A)(B) do not have any requirements in regards to light fixtures. All based on 2007 edition. 2002 is the same. Thanks, Eric Tysinger CET NICET III - 108988 Designer Wayne Automatic Fire Sprinklers, Inc. 4370 Motorsport Drive Concord, NC 28027 p: (704)782-3032 x1751 f: (704)795-6838 C: (239)633-9703 -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Richard Carr Sent: Tuesday, May 11, 2010 12:22 PM To: sprinklerforum@firesprinkler.org Subject: RE: Table 8.3.2.5(c) will give you the distance from light based on head temp. Richard Carr, SET Design Manager Associated Sprinkler Co., LLC 336.373.3901 ext 217 richa...@associatedsprinkler.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Anderson, Worth Sent: Tuesday, May 11, 2010 12:19 PM To: sprinklerforum@firesprinkler.org; m...@markeckard.com Subject: RE: Heat Source refers to preaction and deluge systems, 7.3.1.8.2.3? -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of m...@markeckard.com Sent: Tuesday, May 11, 2010 12:11 PM To: sprinklerforum@firesprinkler.org Subject: Re: You need to look at distance from heat sources, not obstructions. Mark Eckard m...@markeckard.com -----Original Message----- From: "Anderson, Worth" <anders...@cintas.com> Date: Tue, 11 May 2010 11:52:37 To: <sprinklerforum@firesprinkler.org> Subject: RE: Light fixture is flush with ceiling grid. Just having some difficulty locating minimum distance in NFPA 13 2007. Worth Anderson Cintas Fire Protection E-mail: anders...@cintas.com Phone: (239)-693-8722 Ext: 224 Cell: (239)-633-3887 Fax (239)-693-8792 -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Cliff Whitfield Sent: Tuesday, May 11, 2010 11:48 AM To: sprinklerforum@firesprinkler.org Subject: RE: How far does the light stick down from the ceiling and how far is your sprinkler deflector from the ceiling? Cliff -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Anderson, Worth Sent: Tuesday, May 11, 2010 10:42 AM To: sprinklerforum@firesprinkler.org Subject: What is the minimum deflection distance of a pendant sprinkler head from (2'x4') florescent light fixture with (2'x2') ceiling tile throughout? 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