Tyco BB Series User Manual

TFP610
Page 3 of 28
The other cost reduction is the Listing
of BlazeMaster CPVC for use in attic
spaces to feed the wet system Spe-
cific Application Sprinklers for Pro-
tecting Attics, as well as to feed the
wet system sprinklers below the ceil-
ing. Traditionally, BlazeMaster CPVC
has been used on the lower floors in
the joist space above a ceiling that do
not require sprinklers. The cost of us-
ing CPVC on those floors can now be
translated to the upper floor even if
sprinklers are required in the attic.
There are four (4) models of the Spe-
cific Application Sprinklers for Pro-
tecting Attics – BB (Back to Back Dual
Directional), SD (Single Directional),
HIP, and AP (Attic Plus). The BB (Back
to Back) and SD (Single Directional)
Sprinklers have three (3) separate ver-
sions that are used for different roof
pitches. The pitches, as applicable,
can vary from a minimum of 3:12 to a
maximum of 12:12 (Ref. Table A).
BB Sprinkler
(Back to Back Dual Directional)
The Model BB Specific Application At-
tic Sprinkler (Figures A, B & C) throws
a narrow but long pattern. The nar-
row spacing along the ridge serves
two purposes: the response time is
reduced by placing the sprinklers no
farther than 6 feet (1,8 m) apart, and
the spray can be concentrated in the
throw direction to obtain a pattern that
will cover up to 30 feet (9,1 m) in each
direction when measured horizontal-
ly. There are three (3) different models
(i.e., BB1, BB2, and BB3) that account
for different roof slopes, and each
model is provided in one of three dif-
ferent orifice sizes (K=4.2, 5.6, or 8.0).
SD Sprinkler (Single Directional)
The Model SD (Single Directional)
Specific Application Attic Sprinkler
(Figure D), like the Model BB, throws a
narrow but long pattern. However, un-
like the Model BB, the Model SD only
throws in one direction. These sprin-
klers are primarily used where shear
walls or draft curtains have been in-
stalled within an attic space. Another
use is when the framing direction is
parallel with the outside wall in the hip
area (Ref. Figure 13). In this case, the
SD (Single Directional) would be used
on one side of the slope and AP Sprin-
klers or Standard Spray Sprinklers
would be used to protect the other
side. The Model SD Sprinklers must
be installed in a vertical upright orien-
tation and not angled with the slope.
(Achieving the vertical upright orien-
tation may require the use of a swing
joint if the SD Sprinklers are being fed
from a line running along and paral-
lel to the roof hip.) There are three (3)
different models (SD1, SD2, and SD3)
that account for different roof slopes.
HIP Sprinkler
The HIP Specific Application Attic
Sprinkler (Figure E) covers the area
of the hip in the attic. This is a slight-
ly different concept than the BB (Back
to Back) or SD (Single Directional).
The HIP Sprinkler is located along
the slope running down the hip, and
throws a 90° pattern toward the out-
side eaves. This pattern allows the
water to “corner” and control the fire.
The HIP does not throw much water
directly up or down the hip, but rath-
er it throws most of the pattern out to
each side (90°) down the slope of the
roof. This sprinkler is typically spaced
6 feet (1,8 m) to 3 feet (0,9 m) on center
down the slope. To use the HIP Sprin-
kler, the framing must be perpendicu-
lar to the outside wall (Ref. Figure 12)
and the maximum throw cannot ex-
ceed 28 feet (8,5 m) measured hori-
zontally. The HIP, unlike the BB (Back
to Back) and SD (Single Directional),
is installed with the deflector parallel
with the slope. There is only one mod-
el with flows and pressures for two
different spacings.
Button
-
Deector
Sealing
Assembly
-
Bulb
Compression
Screw
Components:
Frame
-
-
-
2
3
1
6
4
-
5
CROSS
SECTION ELEVATION
2-1/8"
(54,0 mm)
FLOW
6
2"
(50,8 mm)
1-1/4"
(31,8 mm)
2-1/8"
(54,0 mm)
1-1/16"
(27,0 mm)
4
5
1
FRAME
ARMS
7/16" (11,1 mm)
NOMINAL
MAKE-IN
WRENCH
FLATS
1/2" NPT
THREAD
RELIEF
3
2
Sealing
Assembly
-
Deector
-
Spring
Ejection
Bulb
-
-
Compression
Screw
Components:
Frame
-
-
-
Button
4
2
3
1
7
6
5
CROSS
SECTION ELEVATION
2
1
3
4
5
6
WRENCH
FLATS
7/16" (11,1 mm)
NOMINAL MAKE-IN
SPRINKLER
FRAME
ARMS
1-11/16"
(42,9 mm)
2-1/4"
(57,2 mm)
1/2" NPT
7
FIGURE E
MODEL HIP WITH 5.6 K-FACTOR
SPECIFIC APPLICATION ATTIC SPRINKLERS
FIGURE F
MODEL AP WITH 4.2 or 5.6 K-FACTOR SPECIFIC
APPLICATION COMBUSTIBLE CONCEALED
SPACE SPRINKLERS

Tyco BB Series Specifications

General

Brand	Tyco
Model	BB Series
Category	Irrigation System
Language	English