The question is not can you configure it like a system riser and call
it at YOUR choice a system. The question is MUST it be a system? As
for the components one elects to put on each floor, NFPA 13 does not
require all the stuff shown in A.8.17.4.2(b) for a floor control valve
(actually the criteria in 13 that the annex material is attached to is
not about floor control valves). Other sections indicate the type of
supervision for floor control valves but nothing in 13 says you have
to have it. Now the IBC requires a control valve but then it is real
sloppy on the alarm requirements (many things interpreted to mean a
flow switch per floor but nada explicitly stating on it). A tad
amusing.
There are significant impacts on whether each floor is a system
especially for NFPA 25.
Roland
On Jan 13, 2011, at 10:39 AM, Todd Williams wrote:
If the floor has its own dedicated feed from the system riser, then
yes it can be a system. If it has a common feed with other floors,
then it isn't. See NFPA 13 section 3.3.21 (assuming we accept that
the word "system" here means sprinkler system).
_______________________________________________
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)
