sounds like an old hand from the TC. Did you receive your confirmation letter form NFPA yet?
Roland On Sep 2, 2009, at 5:09 PM, Justin Reid wrote: > Chapter 8 says it is only necessary to the test the 4 heads;but, > 5.14 (2007 > edition) still says that the test connection shall be "sized" for > the low > flow and the maximum anticipated flow. I am not sure if this was an > oversight, or if the intent is to still provide the capability of > testing > the maximum anticipated flow through the test connection, even > though not > required by Chapter 8. > The 99 edition required flow tests at the high end and low end of the > expected design rate. The wording went away in the 2003 to only be > conducted > at the minimum design operating pressure (clarified in the Appendix > as the 4 > heads). 2007 is much clearer now on the testing requirements in > Chapter 8. > However, the wording in Chapter 5 stayed the same. > > The typo referencing 5.13 in the 2007 edition, probably comes from > "Test > Connections" being Section 5.13 in the 2003 edition. > > On Wed, Sep 2, 2009 at 8:40 AM, Dewayne Martinez <[email protected]> > wrote: > >> I have a balanced pressure system. What confused me was that 5.13 is >> about supervision not testing. >> I got in touch with the manufacture and they felt it would only be >> necessary to test the 4 head flow since the >> proportioners typically have trouble getting the correct mix at low >> flows. >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Thom >> McMahon >> Sent: Wednesday, September 02, 2009 10:22 AM >> To: [email protected] >> Subject: RE: Foam test connection >> >> NFPA 16, 2007 edition say's >> >> 5.14* Test Connections. System test connections shall be sized to >> accommodate both the low flow of the proportioner and the maximum >> anticipated flow through the proportioner.(Also see A5.14) >> >> Then some special requirements appear in chapter 8 >> >> 8.4.1.4.4 For balanced pressure and positive pressure proportioning >> systems, flow tests shall be permitted to be conducted through the >> test >> connections required in Section 5.13. For other proportioning system >> types, full-flow testing of system and discharge devices is >> required to >> properly evaluate the proportioning system. >> >> So the answer is generally yes, but if your system is not a >> balanced or >> positive pressure proportioning system full flow testing is required, >> I'm guessing thru the system? >> >> Anyone out there on the 16 committee? >> >> Thom McMahon, SET >> Firetech, Inc. >> 2560 Copper Ridge Dr >> P.O. Box 882136 >> Steamboat Springs, CO 80488 >> Tel: 970-879-7952 >> Fax: 970-879-7926 >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of >> Dewayne >> Martinez >> Sent: Tuesday, September 01, 2009 5:19 AM >> To: [email protected] >> Subject: Foam test connection >> >> I am a bit confused on the test connection for a foam-water sprinkler >> system. >> Does it only have to satisfy the minimum flow of the 4 most remote >> sprinklers or does it also have accommodate the anticipated maximum >> flow >> through the proportioner? >> Thanks, >> Dewayne >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email >> to:[email protected]<to%[email protected] >> >> > >> (Put the word unsubscribe in the subject field) >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email >> to:[email protected]<to%[email protected] >> >> > >> (Put the word unsubscribe in the subject field) >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email to:[email protected] >> <to%[email protected]> >> (Put the word unsubscribe in the subject field) >> > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
