Ladies/Gentlemen: Good morning from Santa Fe...Mr. Peck's response is 'spot-on'. Lab testing has shown sprinklers (horizontal and/or vertical) to either be delayed - or not activate at all - when placed <0'-4" to nearest wall. My recollection is a vacuum condition occurs and there is not sufficient heat build up to activate sprinkler. I believe the same phenomenon occurs with smoke detector placement. So, 4 to 6 out away from wall (vertical SW) and minimum 4" (to max. 12"?) down from ceiling/in wall for HSW. The same would apply for placement of a pendent sprinkler - if one were needed at 4" from wall...
Regards to all, Jerry [email protected] Jerry D. Watts, SFPE President & Co-Founder ACCENT FIRE ENGINEERING INT'L. Ltd.* Santa Fe/Albuquerque/Silver City/Roswell/Artesia New Mexico Seattle, WA San Diego, CA Phoenix, AZ San Antonio, TX (800) 503.1961 nationwide *Licensed Fire Engineers - Architects/Inspectors/Fire Investigators: AZ CA CO NM NV NY TX UT KS MD MS -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20130408/9468d3ac/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
