I am working on to an addition to an existing system that has Tyco EC-11
pendent sprinklers. According to the data sheet, these sprinklers may be QR in
some circumstances and SR in others. The addition I am working on will be using
standard coverage sprinklers. The space is open to the area with the EC-11
sprinklers but separated by a deep soffit. The design of the EC-11 is such that
they are considered standard response by the listing. The obvious question is
QR or SR for the new sprinklers? I am assuming QR because that is closer to the
response time of the EC-11s despite the SR listing, but I am being questioned
on this. Thoughts?
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080 (tel:860-535-2080) (ofc)
860-554-7054 (tel:860-554-7054) (fax)
860-608-4559 (tel:860-608-4559) (cell)
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