08-0101 Sprinklers 032808 001'fY~CO Fire & Building
Products
Technical Services: Tel: (800) 361-9312 /Fax: (800) 791-5500
PE K~
PERFORMANCE
ATTIC PROTECTION SPfl INNLER SYSTEM
Models BB, SD, H-P, and AP
"Specific Application Sprinklers
For Protecting Attics"
General
Description
The Tyco®, PeakTM Performance,
Motlel BB (Back to Back), SD (Single
Directional), HIP, and AP (Attic Plus)
"SpeciOc Application Sprinklers For
Protecting Attics' are fre sprinklers for
combustible and non-combustible
sloped attic spaces. The Model 8B,
SD, and HIP are Specifc Application
Attic Sprinklers, whereas the Model
AP is a Specifc Application Combusti-
ble Concealetl Space Sprinkler having
specific application uiteria for its use
with the Model BB, SD, and HIP in attic
spaces. Specific Application Attic
Sprinklers provide superior fire protec-
tion in attic spaces and, when com-
paretl to Standard Spray Sprinklers,
cost savings are achievetl by eliminat-
ing branchline materials and the asso-
ciated installation labor. "The Specifc
Application Sprinklers For Protecting
Attics' have untlergone the most ex-
tensive fire testing ever performetl for
sloped attic spaces. They are UL
Listed with Iheir specifc application
guidelines for use as special sprinklers
as de0ned by the NFPA.
The SpeciOc Application Anic Spdn-
klers provide an extended coverage
spacing alternative to the restricted
spacing of Standard Spray Sprinklers.
The restricted spacings of Stantlartl
Spray Sprinklers usetl within attics is
described in the 2007 edition of NFPA
fMPORTANT
Always re/er to Technical Dara
Sheet TFPJ00 (or the 'INSTALLER
WARNING" that provides cautions
with respect fo handling and instal-
lation orsprinklersysrems anrt com-
ponents. Improper handling and in-
stallation can permanently damage
a sprinkler system or Ifs compo-
nents and cause the sprinkler to Tail
to operate in a fire situation orcause
R to operate prematurely.
Page 1 of 28
13, Table 8.0.2.2.1 (a) end Section
8.6.4.,.4.
The Specific Application Attic Spdn-
klers are Me frst sprinklers to be:
• Listetl for extended coverage in
combustible construction.
• Full-scale fre testetl in both wet and
dry system scenarios.
• Full-scale tested, for use in wood
truss construction.
• Listed for specific roof slopes (Refer
to Table A).
The Specifc Application Attic Spdn-
klers provitle the best level of protec-
tion and contrcl cost by eliminating the
need for atlditional 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 (Back
to Back) Sprinklers. If there is a need
for Model SD (Single Directional) or
Model HIP Sprinklers, one line of
either of these sprinkler types is suffi-
cientateach area being covered. For
example and assuming the use of
Standard Spray Sprinklers, a system
in a 60 fool (18,3 m) wide attic, with up
to a 12:12 roof pitch, designed tc the
2007 edition of NFPA 73, would re-
quire seven branchlines to cover the
main portion of the attic and several
additional branchlines [o cover the hip
areas. With the Specific Application
Attic Sprinklers. the requiretl coverage
can be obtained with just one branch-
line below the peak and one dawn
each slope of the hip beam. This would
result in approximately 90 % less pipe
neetletl for installation. This reduction
in the number cf branchlines saves the
cost of the pipe, fittings, hangers, and
dated labor by eliminating up [o
fve branchlines.
Another important aspect of the Spe-
cific Application Attic Sprinkler tech-
nology is the reduction in system vol-
ume.This volume reduction may result
in reducing the size of a dry pipe valve
(and air compressor) and possibly al-
AUGUST, 2007
i~~i
RECEIVED
MAR ~'C~°~V F DTFP670
MAR 2 8 7008
Page 2 of 28
cOmParcnre
1~ FAme a- ewn
z ~ ewo~ s- comPreatlOo
3- $eaFng $vew
Amemby s-oe11«ror
2ve• 1 sre~
(scz mm) H1,a mml.
1 1/0° 13/16"
(2Y6 mm) ~ ~6 R0,6 mm)
FLOW FLOW
6 5 FRAME
ARMS
1 1-1 /0'
THflEAO 151,0 mm)
RELIEF
3
2 1(1' ~ yd'NPT
ryz.T mml
NOMINAL WRENCH
MAKE-IN FLAT$
CRO55 FRONT
SECTION ELEVATION
FIGURE A
MODEL BBi, BB2 &BB2
WITH S.D K-FACTOR
SPECIFIC APPLICATION ATTIC
SPRINKLERS
comoorems:
/- F2ma a~ emb
z- Rmm~ 5 ~ cemaee.m~
3- Sealing 5«ew
A¢sam6N 6' OaPecmr
2-11d' 1-ym"
(P.3 mm/ ~14r,3 m/
1-I/0' 13/16'
(3B,6 mm) ~ 6 (266mm) ~~
FLAW FL`W
4 5 FRMIE
ARMS
I 2
3118'
THREAD L59,O mm) ~ -
REtIEF
3~
]/IB" I 1/]-NPT
111,1 mm)
rvomwu WRErvcH
MANE-IN FLATS
CROSS FRONT
SECTION ELEVATION
FIGNRE C
MODEL BB1, BB2 S BB3
WITN 41 K-FACTOR
SPECIFIC APPLICAT/ON A TT/C
SPRINKLERS
TFP610
cemPO~ems•
- emy s - comL.essi«r e ~ oercaor
z-ceP s«e g~flne/
3- Sealbg 6-Lever 16- Oilluser
Assembly ]~ Cefl«lor N- Link
a- seams Frame at:emery
_ 49/16" S-1/d' ~I
1o n m e 4118'
Q6,6 mm1
0 ~'
FLOW FLOW
6 ~ ?1? ~'FflAME
_ 163.5 mm) ARMS
6~
/ - NPT
3i I '
~ / ]tl0"(111 mm) WRENCN
NOMINAL MPRNN HEX
CRO55 SIDE
SECTION ELEVATION
FIGURE B
MODEL BBT, HH2 B 883
WITH 5.6 K-FACTOR
SPECIFIC APPLICATION ATTIC
SPRINKLERS
comP«~ame:
1- saav s - c re~w ee loo e ~ oa/lea«
z-cae sc s-River
J- 6eafirp 6- lever I6- Nnk
AssamMy ]~ afietlor pssambly
d~ Safdle F2me
Idli6' 3-1I0'
(33~mm) ~ ~-/6A,6 mm)
T r-5/1fi'
e~ ~ (33,d mm1
9
~ ~~ 9' FLOW _
'- p63 mm/
] FRAMF._-
~ ARMS
6 WRENCH
HEX
5 .. / °
e: -
3 sl ~ ]NC yr NPr
In ~ mml
CRO55 NOMINAL SIDE
MAKE-IN ygTON
FIGURE O
MODEL SDI, SD28 503
WITN 5.6 K-FACTOR
SPECIFIC APPLICATION ATTIC
SPRINKLERS
TFP610
comomenu.
t -name a ~ eom
3- aunm Y eompmssion
9- Seallrg Svew
,a.emdy s ~ oenmor
xim• r
~J~ISas m)~ Ispa mm)
I m6' _ 1-va' _
In,omm) ~ Is i Pi.e mm)
I __
\ ~ Flow i
q s
r FRAME '
PRMS
TIREPD blla'
RELIEF (6r.OImm)
s L_-.-
2 9Gfi' 12'NPL
(fl, mm)
NCMINPL WRENCH
MPRE-IN FLArS
CROSS SIOE
SECTION ELEVATION
FtGUREE
MODEL NIP
WITH 5.6 K-FACTOR
SPECIFIC APPLICATION ATTIC
SPRINKLERS
low for quicker water delivery limes,
eliminating the need for an accelera-
tor.
The other cost reduction is the Listing
of BlazaMaster' CPVC for use in attic
spaces to supply the wet system'Spe-
cific Application Sprinklers For Pro-
tecting Attics', as well as the wet sys-
tem sprinklers below the ceiling.
Traditionally BlazeMaster CPVC has
been used on the lower floors in the
joist space above a ceiling that tloes
not require sprinklers. The savings of
using CPVC an 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 Direc-
tional), HIP, and AP (Attic Plus). The
BB (Back to Back) and SD (Single
Directional) Sprinklers have three
separate versions 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 Tyco®Model BB Specific Applica-
tion Attic Sprinkler (Figure A, B & C)
campanema:
~ - rmme s ~ comvressloa
z ~ saanns saaw
pssemEy 6~ Celletln
- autlon l ~ Eppion
a- axle ~nng
f-nrmfim
Pxa 1
s..
s_ sRRINKLER
EHpME
Aams
° __
ava~
r (6],2 mm)
J
- WRENCH- ~~
~' Furs - -.
i i
r yr rver ,
]MB'(11,t mm) J
NOMINpLMANE-IN
CROSS FRONT
SECTION ELEVATION
FIGURE F
MODEL AP
W/TH 4.3 or 5.6 K-FACTOR
SPECIFIC APPLICATION COMDUSTIBLE
CONCEALED SPACE SPRINKLERS
Page 3 of 28
throws a narrow but long pattern. The
narrow spacing along the ridge serves
two purposes. The response time is
retluced by placing the sprinklers no
farther than 6 feet (7,8 m) apart, antl
the spray can be concenlratetl in the
throw direction to obtain a pattern that
will cover up to 3g feet (9,im) in each
direction when measured horizontally.
There are three different models (i.e.,
BBi, B02 8 BB3) that account for dif-
ferent roof slopes, and each model is
available in one of three different ori-
fice sizes (K=4.2, 5.6, or 8.0).
SD Sprinkler (Single Directional)
The Model Tyco® SD (Single Direc-
tional) Specific Application Attic Sprin-
kler (Figure D), like the Motlel BB,
throws a narrow but long pattern. How-
ever, unlike the Model BB the Model
SD only discharges in one tlirection.
These sprinklers are primarily used
where shear walls or draft curtains
have been installed within an attic
space- Another use is when the fram-
ing tlirection is pe~allel witM1 rM1e outside
wall In the hip area (ftef. Figure 13). In
this case, the SD (Single Directional)
would be used on one side of the
slope, and AP Sprinklers or Standard
Spray Sprinklers would be used to pro-
tect the other side. The Motlel SD
Sprinklers must be installetl in a verti-
cal upright orientation and not angled
with the slope. (Achieving the vertical
upright orientation may require the use
of a swing joint if the SD Sprinklers are
being supplied from a line running
along and parallel to the roof hip.)
Three different models (i. e., SDi,
SD2 8 SD3) are available for tlifferent
roof slopes.
HIP Sprinkler
The Tyco®HIP Specific Application At-
ticSprinkler (Figure E) covers the area
of the hip in the attc. This is a slightly
different concept than the 8B (Back to
Back) or SD (Single Directional). The
HIP Sprinkler is locatetl along the
slope running tlown the hip, and
throws a 9g° pattern toward the out-
side eaves. This pattern allows the
water to "corner" and control the fire.
The HIP does not tlischarge much
water directly up or dawn the hip, but
rather it discharges most of the pattern
out to each sitle (90") down the slope
of the roof. This sprinkler is typically
spaced 6 feet (1,fi m) to 3 fee[ (9,9 m)
on center tlown the slope. To use Ilia
HIP Sprinkler, the framing must be
perpendicular to the outside wall (Ref.
Figure 12) and Ilia maximum throw
cannot exceed 28 feet (8.5 m) meas-
ured horizontally. The HIP, unlike the
BB (Back to Back) antl SD (Single
'registeretl tredemark of Lubrizol Atlvancad Materiels, Inc
Page 4 of 28
Directional), is installed with the de-
Flector parallel with [he slope. A single
motl¢I iS available with flow antl pres-
sure requirements for two different
spadngs.
AP Sprinkler (Attic Plus)
Installed in the upright orientation with
their deflector parallel tp the roof, the
Tyco®Model AP Sprinklers (Figure F)
are intended to be used to provide
protection of attic areas outside the
scope of application for the BB, SD, or
HIP Sprinklers. When used, the AP
Sprinklers in most cases will provide a
hydraulic advantage over Standard
Spray Sprinklers for the protection of
attic areas outside the scope of appli-
cation for the BB. SD, or HIP Sprin-
klers (Ref Figures 21 and 22 for exam-
ples).
WARNING
The "Specific Application Sprinklers
For Protecting A [tics' described h erein
must be installed and maintained in
compliance with this document, as
well as with the applicable standards
of the National Fire Protection Asso-
ciation, in addition to the standards of
any other authorities having juristlic-
fion. Failure to do so may Impair the
pertormance o! these devices.
The owner is responsible /ormainlain-
ing their fire protection system and de-
vices in proper operating condilioa
The installing c¢n(racfor or manufac-
turer should be contacted with any
questions.
Sprinkler
Identification
Number
TY4787* -BB2, K=8.0
TV4182` - BB3, K=8.0
773180` - BBt, K=5.6
TV3181* -BB2, K=5.6
773182` - SB3, K=5.6
772180 - BB1, K=4.2
772187 -BB2, K=4.2
772782 -BB3, K=4.2
773183' -SD1, K=5.6
773184' - SD2, K=5.6
773785'-SD3, K=5.6
773187` -HIP, K=5.6
773190 - AP, K=5.6
TV2190 - AP, K4.2
'The "TY" prefx is a redesigns[ion of
the previous "G" prefx (e.g., 774180 is
a redesignation far C4180).
Technical
Data
Approvals
UL 8 C-UL Listed.
(The approvals only apply to the serv-
ice conditions indicated in the Design
Criteria section on Page 6 and the
Design Guidelines section on Page 8.)
Pipe Thread Connection
1/2 inch NPT for K=4.2 8 5.6
3/4 inch NPT for K=8.0
Discharge Coefficient
K = 4.2 GPM/psilrz (60,5 LPMPoartM)
K = 5.6 GPMlpsil/~ (80.6 LPM/bartn
K = 0.0 GPM/pslr/s (115,5 LPM/barb)
Temperature Raling
Intermetliale Temperature as follows:
- 200°F/93°C for BB (K42 8 K8.0 ),
HIP, AP
- 212°FI100°C for BB (K5.6i, SD
Finish
Natural Brass
Physical Characteristics
(Figures A, C 8 E)
Frame ....... .Bronze
Button Bronze/Copper
Sealing Assembly . .
..Beryllium Nickel w/TeflonT
Bulb ~ .......Glass (3 mm dia.)
Link .... Monet
Compression Screw Brass
Deflector.. Brass/Bronze
T DuPont Registeretl Trademark
Physical Characteristics
(Figures B 8 D)
Body ......... ..... Brass
CaP ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ..Bronze
Sealing Assembly. .
. Beryllium Nickel wlieflonT
Sadtlle .. .. ..... Brass
Link ASSemhly .... Nickel
Compression Screw Brass
Deflector...... Brass/Bronze
lever .. .....Bronze
De0ec[or Frame... .. .. Bronze
Diffuser ....... ..... Brass
Rivet .. Brass
T DuPont Registered Trademark
Physical Characteristics
(Figure F)
Frame ........ .... Brass
Button . .....Bronze
Sealing Assembly . .
.. Stainless Steel w/To0ont
Bulh .G lass (3 mm tlla.)
Compression Screw ..... Brass
Deflector.. .Bronze
} DuPont Registered Trademark
Patents
IAS.A. 5,669,449
TFP610
Operation
BB (K=8.0 8 4.2), HIP (K=5.6)
8 AP (5.684.2)
The glass bulb contains a Fluid that
expands when exposed to heat. When
[he rated temperature is reached, the
W id expands sufficiently to shatter the
glass bulb, allowing the sprinkler to
activate antl water to flow.
BB (K=5.6) 8 SD (K=5.6)
The fusible link assembly is comprised
of two link halves which are joined by
a thin layer of solder. When the rated
temperature is reached, the solder
melts and the two link halves separate,
allowing the sprinkler to activate and
water to Oow.
Page a of 28
Design
Criteria
Area Of Use:
Roof structures, combustible and non-
combustible, including wood IoisVraf-
ters and wood trussed attics, with a
ceiling below.
System Typo for
BB, SD, HIP, or AP:
Wel using CPVC pipe.
Wet or dry using steel pipe.
NOTE
Use of the 4.2 K sprinklers in dry pipe
systems is permitted by section
8.3.4.3 0/ NFPA 13 (2007 edition)
where piping is corrosion resistant or
internally galvanized.
Hazard:
Light hazard.
BB, SD, or HIP Allowable Roof Span
(Coverage) and Roof Pilch:
Refer m Tabie A for allowable roof
spans and roof pitches, as well as for
the associated minimum sprinkler
flows and pressures. Figures 1, 2, 11,
and 12 illustrate where the roof span is
to be measured. Roof spans may be
up to 80 feet (24,2 m) by using addi-
tional AP Sprinklers or Standard Spray
Sprinklers (Ref. Figures 14 & 15).
BB, SD, HIP, or AP Minimum Dis-
tance Between Sprinklers:
4 feet (1,2 m) as measured along
branchline (or 86 and SD (ftef. Figure
3).
3 feet (0,9 m) as measured along
branch line for HIP (Ref. Figure 12).
7 feet (2,1 m) between AP Sprinklers.
8B, SD, HIP, or AP Maximum Dis-
tance Between Sprinklers:
B feet ~1,8 m) on center along Ma
branch Ilne (Ref. Figure 3 and 12) for
6B, SD, and HIP.
Far AP, the maximum spacing is 10
feet (3, 7 m) perpendicular to slope and
12 feet (3,6 m) parallel to slope- When
(here is more than one row of AP
Sprinklers, the sprinklers must be
staggered per Figure 20-8-3.
BB, SD, HIP, or AP Minimum Dis-
tance To AP Sprinklers or Standard
Spray Sprinklers:
As measured along the peak/ridge di-
rection (Ref. Figure 4), 6 feet (1,8 m)
Loin 68. SO, and HIP to Standard
Spray Sprinklers.
As measured along the peak/ridge tli-
rerxton (Ref. Figure 4), 7 feet (2,1 m)
from AP to Standard Spray Sprinklers.
In the slope direction (Ref. Figure 6),
26 feet (7,9 m) from BB or HIP Sprin-
klers to AP Sprinklers or Standard
Spray Sprinklers.
BB, SD, or HIP Deflector Installation
Position Below Peak/Ritlge or Deck:
22 inches (558,8 mm) maximum, 16
inches (406,4 mm) minimum (Ref. Fig-
ures 2 and 5).
AP Deflector Position and Roof
Pilch:
1 to 3 inches (25,4 to 75,6 mm) below
the bottom of the top chord or bottom
of solid wood raver, where the roof
pitch is 3:12 to 12:12 and the [op chord
or solid wood raker is nominal 12 inch
(600 mm) or less.
BB or SD Deflector Installation Po-
sition Above Scissor Truss
18 inches (457,2 mm) minimum (Ref.
Figure 5).
BB, 50, or HIP Minimum Distance
Away From Trusses:
Attic Sprinklers must be installed 6
inches (152,4 mm) from the face of
trusses (Ref. Figure 7).
SD Distance From Shear Wall Or
Draft Curtain:
4 to 6 inches (101,6 to 152,4 mm) from
face, and minimum 8 inches (203,2
mm) above bottom of draft curtain
(Ref. Figure 2).
Draft Curtains:
Draft curtains installed to permit the
installation of Attic Sprinklers shall be
censiructed so as to not allow heat to
escape Through or above the draft cur-
tain. The draft wrtain may be con-
structed of 1/2 inch (12,7 mm) ply-
wood.
BB Or HIP Maximum Distance From
The Center Line Of The Ridge:
6 inches (152,4 mm) (Ref. Figure 8)
with the deFlector located i6 inches
(406,4 mm) to 22 inches (558,8 mm)
from the peak.
Usa Ot UL Listed BlazeMaster CPVC
Piping With "Specific Application
Sprinklers For Protecting Attics"
(Wet Systems Only):
TFPB BlazeMaster CPVC piping may
be used in a combustible concealed
attic space requiring sprinklers when
installed in accordance with the follow-
ing guidelines-
NOTE
Where the use of noo-wmbusfible in-
sulation is specified, verily with the
insulation manufacturer as to the non-
ombuabblliry o/ the uloYlon- The
ns
non-combustible insulation (e.g., rl-
berglassf may be faced or unlaced
Where faced, the facing need nor be
non-combustible. The insulation is to
have a Flame spread index o/not more
Than 25.
• TFBP BlazeMaster CPVC may be
TFP87O
used to supply the wet system ceil-
ing sprinklers on the Floor below.
There must be 6 inches (152,4 mm)
ofnon-combustible insulation cover-
ing the pipe extending 12 inches
(304,8 mm) on each side away from
the centerline of the pipe, and the
area above the CPVC must be pro-
tected by Model BB, SD, HIP, or AP
Sprinklers (Ref. Figure 9A). If the
pipe is located inside the ceiling
joist, the joist channel must be cov-
ered or filled with 6 inches (152,4
mm) of non-combustible insulation
on top of the pipe and the area
above must be protected by B6, SD,
HIP, or AP Sprinklers (Ref. Figure
9Bj. Insulation is for hre protection
purposes. If is not freeze protection.
BlazeMaster CPVC must be in-
stalled in accordance with the
BlazeMaster installation guide in-
structions.
• With reference to Figure 19, TFBP
BlazeMaster CPVC may be used ex-
posed to supply we[ system BB, SD,
or HIP Sprinklers where
• Risers are vertical and protected
by a BB, SD, or HIP Sprinkler lo-
sated at a maximum lateral dis-
tance of 12 inches (300 mm) from
the riser centerline.
* BB, SD, or HIP Sprinklers are tli-
rectlymounted on the branchline.
* BB, SD, or HIP Sprinklers are on
armovers and located at a maxi-
mum lateral distance of 6 inches
(150 mm) from the branchline
centerline.
• BB, 50, or HIP Sprinklers are on
vertical sprigs attached to the
branchline.
* BB, SD, or HIP Sprinklers are on
armover or angled sprigs, and lo-
catetl at a maximum lateral dis-
tance of 6 inches (150 mm) from
the branchline centerline.
• A minimum lateral distance of 78
inches (4511 mm) is maintained
between the CPVC pipe and a
heat producing device such as
heat pumps, fan motors, and heat
lamps.
. TFBP BlazeMaster CPVC may be
used exposed to provide wet sys-
tem, vertical or angled, sprigs to AP
Sprinklers (Ref. Figures 17A and
17B) where
The exposed portion of an angled
sprig is a maximum length of 3
feet (0,9 m), the sprig is supported
within 12 inches (0,3 m) of the AP
Sprinkler, and pipe hangers are
provided using the CPVC hanger
support for horizontal pipe runs.
TFP870
Page 7 of 28
ODEL
K
IN
ALLOWABLE
ROOF SPAN, I=I le1(q
Feetlm)
MINIMUM
FLOW,
GPM (Ipm)
MINIMUM
PRESSURE.
PSI (bar)
ise Geer RUn (%) DRY PIPE
SYSTEM
MA%IMUM
WATER
pELIVERY
TIME,
Secontls
9B1 8.0 TY4180 560 (18,9) 38 (144) 22.6 (1.51 4-12 (33) to less than ]:12 (68) 1c)
BB2 8.0 TV4181 SBO (16,3) 38(144) 22811,6) L12 (58)to less Dan 1P.12 (83) (c)
BB3 8.0 ry4182 560 p8,3) 40(162) 25.0 (t ]) 10.12183)1012']2(100) (d
BB1 5.6 ry3180 >40112,2)l0 <60 (18,3) 38 G44) be.o (3,2) 4:12 (3311c less than ]:12 (58) (c)
BB2 5.6 ry3181 >40 (12,2) to 560 (18,3) 38114d) 46.0 (3.2) ]'.12 (58) t0less Ulan 10:12 (837 (cl
B83 5.6 ry3182 >40 (12,2)10580 (18,3J 38 (14AJ 46.013,2) 10:12(83)1012:12(100) (c)
BBt 5.6 TV3180 540(12,2) 25 (B5) 20.0(1,4) 4:12 (33j to less lM1an T12 (58) (d
BB2 6.6 TY3181 540(12,2) 25(95) 20-D (1,4) T:12 (SB)l0less Nan 10:12 (83) (c)
BB3
5.6
ry9182
540 (12,2)
25185)
20.0 (1,4) _-. ___.
10:12 (33) l012:12 (100)
(c)
901 4.2 TV2180 520(6,1) 13149) 9.6 (0,]I 3'.12125)to Tess ban ]:12158) 46 (d)
BB2 4.2 TV2181 520 (8,1) 13 (49) 9.6 (0.]) ] 12 (58) to lass iM1an 10:12 (83) 46 (d)
BB3 4.2 TY2182 52018,1) 13(49) 9.6(0.]) 10.12183)1012.12(100) 45 (tl)
601 5.8 TY3183 >3019.1) b 5401122) 35 (132) 38.0 (2]) 4'.1213311c less Than ]:12 (58) (c)
Sp2 5.6 ry3184 >30 (9,1)10 540 (12,2) 35 (132)
__ 99.0127) t 12 (58) to less IM1an 10:12 (83) (c)
SW
5.8
ry3185
>30 (8.1j to VO(122)
36(132) ___.
39.0(2,])
10tl2 (8311012:12(1001
(a)
3p1 5.6 TY3183 >1013,0) b 530 (9.17 25 (95) 20.0 (1,4) 4.12 (3311c less than ]: t2 (561 (c)
302 5.8 TY3184 >1013,0110 ~0 (9,1) 25(95) 20.0(1,4) ]tl2158)lo less Uan 10:12183) (c)
SD3 5.6 TV3185 >10 (3,0)to c3018,1) 25(85) 20.0 (1 A) 10tl2 (89)1012:12 (100) (c)
3D1 6.6 TY3183 510 (3.0J 19 (]2) 11.5 (qe) A:12 (33110 lass [hen Z12 (58) (c7
502 SB TY3184 510 (3,0J 1B (]2) 11.5 (0,81 ]:12158) b less than 10:12 (83) (c1
SD3 S6 ry3185 61013,01 19(]2) 11.610,8) 10:12 (83)1012:12 (too) (c)
HIP 5.6 ry318] >2018,1)10 4018,5) 34(128) 36.912,5) d:12133)1012:1211001 (c)
HIP fi.6 ry318] <20 (6,1) 25(95) 20.011,4) A:12 (33)1012:121100) (c)
AP 5.8 TV3190 10 (3,1J x12 (3,6) Minimum ]psi (0,48 bar) 3:12(25)1012:12(100) 6014)
AP 4.2 TY2190 -see note (e)- Minimum 0.10 gpmisq. ll.
14,1 mm/mla7 Design Denslly ----
112 (2511012tl2 (100)
601tl)
NOTES'.
(a) The BB antl Sp roof span 5 measured hodzcnlelly (not along the slope) as shown in Figure 1 antl 2.
(b) The HIP roof span is measuretl horizontally as shown in Figwa 12.
Ic) Refer l0 200] edi8on of NFPA 13, Section ].2.3.
(tl) Maximum wafer delivery time for all size of systems.
(e) TM1e AP mot span is measuretl along the slope. Maximum 1o feet (3,1 m) perpentlicular to slope by maximum 12 feel (3,fi m)
pa211e1 b slope.
TABLE A
ALLOWABLE ROOF SPAN, FLOW, PRESSURE, AND PITCN FOR
"SPEC/F/C APPL/CAT/ON SPRINKLERS FOR PROTECTING ATTICS"
* Vertical sprigs have a maximum
exposed length of 10 feet (3,05
m), the AP Sprinkler is located at
a maximum lateral Distance of 12
inches (300 mm) tram the sprig
cenlerilne, antl the sprig is sup-
ported at the swing joint to the AP
Sprinkler.
* A minimum 6 inches (152,4 mm
deep of non-combustible insula-
tion extending 12 inches (304,8
mm) on each side away from the
cenl¢nlne of me GPVG branchine
feetling the AP sprigs (Ref. Fig-
ures 1TA). If [he GPVC branchline
is located inside the ceiling )01st,
the Iolst channel must be covered
or filled with a minimum of 6
inches (152,4 mm) deep of non-
combustible insulation on top of
the branchline supplying the AP
sprigs (Ref. Figure t]B).insula-
tion Is for fire pro[ecGan purposes.
It is not freeze protection. Addi-
tional dep(h of non-combustible
insulation may be added to re-
duce (he exposed length o/the AP
sprigs.
* A minimum lateral tlistance of 18
Page 78 0( 28
TFP610
Figur¢ 20-A-i. BB Sprinklers
• Wet Systems -Calculate the
most demanding five sprinklers.
• Dry Systems-Calculate the most
demanding seven sprinklers (see
adjacent figure).
RIDGE
ORY SYSTEM SHOWN
Figure 20-A-2. BB antl HIP Sprin-
klers
• Wet Systems -Calculate the
most demanding five sprinklers.
- Dry Systems -Calculate the
most demanding seven sprin-
klers, antl then calculate the most
demanding contiguous nine sprin-
klers wiN a maximum of seven to
be BB Sprinklers (see adjacent
figures). Use the most tlemanding
calculation.
tiq
DRV SYSTEM SHOWN
DRV SYSTEM SHOWN