Tyco BB User Manual

Models BB, SD, HIP, and AP
Specific Application Sprinklers
For Protecting Attics
General
Description
The TYCO Models Back to Back Dual
Directional (BB), Single Directional (SD),
HIP, and Attic Plus (AP) Specific Appli-
cation Attic Sprinklers for Protecting
Attics are fire sprinklers for combus-
tible and non-combustible sloped attic
spaces.
While Models BB, SD, and HIP are
specific application attic sprinklers,
the Model AP is a specific application
combustible concealed-space sprin-
kler with specific application criteria
for use with Models BB, SD, and HIP
in attic spaces.
Specific Application Attic Sprinklers
provide superior fire protection in attic
spaces. When compared to Stan-
dard Spray Sprinklers, cost savings
are achieved by eliminating branchline
materials and the associated installa-
tion labor.
Specific Application Attic Sprinklers for
Protecting Attics have undergone the
most extensive fire testing ever per-
formed for sloped attic spaces. They
are UL Listed with their specific appli-
cation guidelines for use as special
sprinklers as defined by the NATIONAL
FIRE PROTECTION ASSOCIATION
(NFPA).
Specific Application Attic Sprinklers
provide an extended coverage spacing
alternative to the restricted spacing of
Standard Spray Sprinklers.
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Always refer to Technical Data
Sheet TFP700 for the "INSTALLER
WARNING" that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and
installation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
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The Specific Application Attic Sprin-
klers are the first sprinklers to be:
• Listed for extended coverage in com-
bustible construction
• Full-scale fire tested in both wet and
dry system scenarios
• Full-scale tested for use in wood
truss construction
• Listed for specific roof slopes (Ref.
Table A)
The Specific Application Attic Sprin-
klers provide cost control with the
best level of protection by eliminat-
ing the need for additional sprinklers
and branchline piping. In many cases,
an attic can be entirely protected with
just one line of piping located below the
peak of the roof using Model BB Sprin-
klers. If Model SD Sprinklers or Model
HIP Sprinklers are needed, one line of
either at each area being covered is
sufficient.
For example, while using Standard
Spray Sprinklers, a system in a 60 ft
(18,3 m) wide attic with up to a 12:12
roof pitch designed to NFPA 13, could
require seven branchlines to cover the
main portion of the attic and several
additional branchlines to cover the hip
areas. With Specific Application Attic
Sprinklers, the required coverage can
be obtained with just one branchline
running below the peak and one down
each slope of the hip beam. This would
result in approximately 90% less pipe
needed for installation. This reduction
in the number of branchlines saves the
cost of the pipe, fittings, hangers, and
associated labor by eliminating up to
five branchlines.
Another important aspect of the Spe-
cific Application Attic Sprinkler technol-
ogy, which also allows for cost savings,
is the reduction in system volume. This
volume reduction may result in reduc-
ing the size of a dry pipe valve and air
compressor, and possibly allows for
quicker water delivery times, eliminat-
ing the need for an accelerator.
AUGUST 2018
Worldwide
www.tyco-fire.com
Contacts
TFP610