Plans LIB; 't/ 1995 15:32 5036849657 IIYATT FIRE PROT PAGE Er2
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Sp rinkler i . •
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Q&eil 95 - 9Co 1.
Upright or Pendent
Automatic 97� 5,,,,, �� . • St Rat !. tri
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Sprinkler .
Manufactured by. Central Sprinkler Company S s
•
451 North Cannon Avenue Lansdale, Pennsylvania 19446
I ill Product Technical
Description Data t.
The Central Model A Upright or Model: A ii f• �.,.,,`` S .
Pendent Sprinklers offer the ultimate Style' Upright or Pendent F. • . r '
in aesthetic appeal and advanced
•
•
•
design features. They incorporate a Orifice Size Kjor Thread
unique center strut design which ' /e" 2.6 "/2" N.P.T.
_. .
results in a smaller, more attractive '/ 4.2 '/2" N.P.T. 1 . '. • •
sprinkler than those manufactured ' /2" 5.6 V2" N.P.T. ; •1. ,. mod' '` --
with a more traditional design "/32" 7.8 ' / N. P.T . • .. ,
r "/32" 8.1 3 /+" N.P.T.
approach. . •
pp oach. The center-strut operating
mechanism of the Model A sprinkler Temp. Rating and Frame Arm Color:
responds significantly faster than 135 °F /57 °C Uncolored : 2' at I " i7 e
more traditional mechanisms such as 165 °F /74 °C Uncolored / $ 7 Ii ti
or
the 8mm glass bulb or link and - lever. 212F/100°C White • The Model A Sprinklers are 286 °F /141 °C Blue Orifi
intended for installation in accordance Approvals: U.L., U.L.C., F M., MEA, ` •
with current NFPA 13 Standards.
They are available in a wide variety of V.O.S., LPCB (See tabular ,, r ' •
orifice sizes, temperature ratings, information on Page 3.)
finishes, and corrosion resistant Maximum Working Pressure: 175 psi.
coatings. Factory Hydro Test: 500 p.s.i. 5pr .: .
Standard Finishes: brass, polished ,
Operation: A fusible alloy is chrome, satin chrome (chrome is - •" ' »
sealed into a bronze center strut by "�
y no V D S Approved) and white
stainless steel ball. When the alloy enamel (white enamel is not
melts at Its rated temperature, the ball Listed or Approved)
is forced upward into the center strut,
releasing the two ejectors and Coatings. wax, lead, or wax over lead
operating the sprinkler Unlike most (See tabular information on
other sprinkler designs, the alloy is page 3.)
not exposed to atmospheric Pintle' on deflector for 3 /e", ' /16 ",
conditions that could affect its proper and "/32 orifice by W thread
functioning. It is also less susceptible Length: 2 3 /8" (excluding pintle)
to mechanical damage since there
are no protruding elements. Width: 1 /,e"
extending beyond the sprinkler frame. Weight: 4.2 oz.
•
For specific Itstrng requirements sea the appropriate
information conf ,ned in this bro
r 03/22/1995 15:32 5036849657 WYATT FIRE PROT PAGE 03
• U.L., "U.L.C. and "MEA (N.Y.C.) Caf. No. 37S -75-SA Listings
Orifice Size and Style *.* Temperature Rating ( °F) Corrosion - Resistant Coating
' /e` upright and pendent
'' 'he' upright and pendent "'135 185 212 a 288 lead, wax, wax over lead
' 12° upright and pendent " * 135 165 212 ** *1286 lead, wax, wax over lead lead, wax, wax over lead
17 /32 ° (x '/e thd.) upright and pendent • - 185 212 *" *286 lead, wax, wax over lead
" /32° (x 3 /4 1 thd.) upright and pendent • • • 185 212 " *'
• 266• temperature Is not U.L.C. Approved with corrosion-resistant coatings.
286 lead, wax, wax Over lead
No corrosion-resistant coatings are Approved by n1EA.
... read only.
•
"'• Listed as high temperature, wax coated tor installation where maximum ambient ceiling temperature does notexceed 160c.
F.M. Approvals
„, �^
Orifice Size and Stvle
Temperature Aating_(°F) Corrosion- Resistant Coatlno
3 /e upright 135 165 212 288
/e upright lead
' /e' upright - . - -' - 212 • .. wax over head
'le upright and pendent 1 3 5 - • - 212 288 lead
'/2' upright and 135 165 212 286 lead
pendent
'I2° upright and pendent • • - - - - 212 28 • wax over lead
11 /32' (x ' /2° thd. upright and pendent 1 3 5 1- . 212 286 wax
P 135 165 212 286 lead
" /32' (x 'I2° thd.) upright and pendant - - • 212
"In° (x '/2' • thd.) upright and pendent - - • • ' ' wax over lead
" /s2° (x'/.° thd.) upright and pendent 135 165 212 288 6 286
" /3° (x 3 /4 1 thd.) upright and pendent wax
"/3 (x 3 /4" thd.) upri and n dant ... . - 212 . wax over lead
-- - - 212 2 2886 wax
LPCB Listings
Orifice Size and Style Temperature Rating °F
9 ( ) Corrosion - Resistant Coating
'/2' (15 mm) upright and pendent 135 185 212 286
" /i° (20 mm) x 3/4° thd. upright and pendent 135 165 212 286 - - V.D.S. -
Listin • s
Style - ..,....• Orifice Size and S
ty Temperature Rating (°F) Corrosion-Resistant Coating
' /e (i0 mm) penden 165
'12' (15 mm) upright and pendent 135 165 212 286 • • -
• " /3? (20 mm) x' /a° thd. upright and pendent 135 185 212 288 . -
0 Installation Wet pi systems must be 3.
protected from freezing. Refer t o the into Step the fitting Nand For upright tighten the sprinklers sprinkler
Central Bulletins on the Model A -1 use a Central Sprinkler Combination
Dry Pendent Sprinklers for use in dry Wrench, and for pendent sprinklers
pipe sprinkler installations. use a Central Sprinkler Universal
All Central Model A Sprinklers Upon completion of the Wrench, to tighten the unit into the
must be installed according to current installation, the system must be fitting. A leak -tight Joint requires only
NFPA 13 Standards. Deviations from tested per recognized standards. 7 to 14 ft. -lbs. of torque; a tangential
these requirements and standards or In the event of a thread leak, force of 14 to 28 lbs. delivered
any alteration to the sprinkler itself remove the unit, apply new pipe Joint through a 6° handle will deliver
will void any warranty made by compound or tape, and reinstall. adequate torque. Torque levels over
Central Sprinkler Company. In 21 ft. -lbs. may distort the orifice seal,
addition, installation must also meet Installation Sequence resulting in leakage.
local government provisions, codes For exposed piping systems, the
and standards as applicable. Step 1. The unit must be Installed sprinkler should be oriented so the
The system piping must be in the upright position for upright style frame arms are parallel with the
properly sized to insure the minimum sprinklers, and in the pendent branch line pipe.
required flow rate at the sprinkler. position for pendent style sprinklers.
Check for the proper model, style, Caution: Special care must be taken
orifice size, and temperature rating Step 2. Use only a non - hardening when installing with a CPVC piping
ori to installationpea serrating pipe Joint compound or Teflon' tape, system. Sprinklers must be installed
after the piping Is in place to avoid Apply only to the male threads. after the CPVC manufacturers
mechanical damage; replace any recommended setting time for the
damaged units, primer and cement to ensure that no
"Teflon is a trademark of the DuPont Corp. primer or cement accumulates within
3