Tyco F950 User manual

INTERMEDIATE LEVEL SPRINKLER
MODEL F950 SOLDER TYPE, l/2” ORIFICE
GENERAL DESCRIPTION
The l/2 inch orifice Model F950 Inter-
mediate Level Sprinklers are a fusible
solder type, automatic sprinkler. They
are primarily designed for use in rack
storage sprinkler systems, where their
fusible elements must be shielded from
the water spray of higher elevation
sprinklers which could operate earlier
during a fire. Intermediate Level
Sprinklers are also used in applications
such as beneath open gridded cat-
walks. Figures A and B illustrate the
upright and pendent versions, respec-
tively.
APPROVALS AND STANDARDS
The l/2 inch orifice Model F950 Inter-
mediate Level Sprinklers are listed by
Underwriters Laboratories Inc. as well
as Underwriters’ Laboratories of Can-
ada. They are approved by the New
York City Board of Standards and
Appeals under Calendar Number 334-
79-SA and by the Factory Mutual
Research Corp. who classifies them
as Rack Storage Sprinklers.
Listings and approvals only apply to
the temperature ratings and finishes
stated in the Technical Data section.
WARNING
The Intermediate Level Sprinklers
described herein must be installed
and maintained in compliance with
this document, as well as with the
applicable standards of the National
Fire Protection Association, in addi-
tion to the standards of any other
authon’ties having jurisdiction. Fail-
ure to do so may impair the integ-
n’ty of thisdevice.
The owner is responsible for muintain-
ing his fire protection system and
devices in proper operating condition.
The installing contractor or manufac-
turer should be contacted relative to
any questions,
TECHNICAL DATA
The sprinkler Shield is a sturdy 4-l/8
inch diameter .05 inch thick brass
plate. It is factory assembled in the
case of the upright sprinkler (Figure
A). Field assembly of the shield com-
ponents to the pendent sprinker is re-
quired (Figure B). The Speednut,
Shield and O-ring Seal can be quickly
installed over the threaded end of the
spiinkler.
Detail information for the l/2 inch
Printedin U.S.A. 3-83
PIPE FITTING
DEFLECTOR)
FIGURE B - PENDENT
HORIZONTAL SPACING “H” IN
PENDENT
CASE 1
HORIZONTALSPACING “H” IN FEET
UPRIGHT
CASE 2
HORIZONTAL SPACING ‘9,” IN FEE,
t,
Y
--t 7
Hi
UPRIGHT
CASE 3
The horizontal spacing “H” and vertical spacing “V” between any two l/2 inch orifice F950
Sprinklers described in Cases 1, 2, or 3 must NOT be such that the intercept of the two values
falls within the shaded area. See lnstallatlon Sectlon for additional Instructions.
If overhead or adjacent sprinklers are of types other than the l/2 inch orifice F950, use the
lorlzontal and vertical spacing limits given in their respective lntermedlate Level Sprinkler
Tech Data sheets.
Example: For a horizontal spacing of 9 feet In Case 1 the vertical spacing must be less than
! feet 6 inches (Point A) or more than 7 feet 3 inches (fioint 6).
FIGURE C - INSTALLATION DIAGRAMS AND SPACING CRITERIA
TD502
OBSOLETE

INTERMEDIATE LEVEL SPRINKLER, MODEL F950, l/2” ORIFICE
FIGURE D
NOMINAL DISCHARGE CURVE
orifice Model F950 Sprinkler is given
on Technical Data Sheet TD517.
Upright Intermediate Level Sprinklers
are available with natural brass or
chrome plated finishes in 165F/74C,
212F/lOOC and 286F/141C tempera-
ture ratings. They are also available
with Corroproof wax and lead coated
finishes in 165F/74C and 212F/lOOC
ratings. Pendent Intermediate Level
Sprinklers are available only with nat-
ural brass or chrome plated finishes in
165F/74C, 212FllOOC and 286F/
141C ratings.
OFFSET SPRINKLER WRENCH
Upright and Pendent Intermediate
Level Sprinklers are rated for use at a
maximum service pressure of 175 psi.
The Upright and Pendent Intermediate
Level Sprinkler Shields are designed so
that their fusible elements are not wet-
ted by water discharging from higher
elevation sprinklers, when spacingsare
outside the vertical and horizorital
limits specified in Figure C. The spac-
ing limits given in Figure C apply to
the highest spray trajectory of the
discharging sprinkler.
NOTE
Applicable in-rack spacing rules of the
authon’ty havingjurisdiction take pre-
cedence over the limits given in Fig-
ure C.
The nominal discharge curve plotted
in Figure D represents the flow, “0”
in U.S. gallons per minute (gpm), as
determined by the formula: Q=Kfp;
where the nominal sprinkler discharge
coefficient “K” = 5.55 and “p” =
pressure in pounds per square inch
(psi). Listing standards permit the
actual value of “K” to vary from 5.3
to 5.8. By substitutjon in the formula
of the appropriate SI (International
System) units of measurement listed
under “Conversion Factors.” 0, K and
p values in SI units can be calculated.
INSTALLATION
ORDERING PROCEDURE
Spiinkler Assemblies:
Specify: l/2” orifice, (specify temper-
ature rating), Model F950 Intermedi-
ate Level (specify upright or pendent)
Sprinkler with (specify type of finish
or coating), PSN (specify).
l/2” Model F950 Intermediate Level
Upright Sprinklers
Natural Brass Finish
165F/74C . . . . PSN 50-953-l-165
212F/lOOC . . . PSN 50-953-l-212
286F/141C . . . PSN 50-953-l-286
Chrome Plated Finish
Upright Intermediate Level Sprinklers
are shipped assembled. Pendent Inter-
mediate Level Sprinklers must be
assembled in the field. Refer to Figure
B for proper orientation of the parts.
The Speednut is installed by rotating
it clockwise and screwing it over the
threads. The O-ring is rolled over the
threads. When properly assembled and
installed, the O-ring and Speednut
will be slightly compressed, thereby
firmly holding the Shield in its proper
position.
165Fl74C . . . . . . PSN 50-953-g-l 65
212F/lOOC . . . . . . PSN 50-953-g-212
286F/141C . . . . . . PSN 50-953-g-286
Corroproof Wax Coating
165Fl74C . . . . . . . PSN 50-953-6-165
212FllOOC . . . . . . PSN 50-953-6-212
Lead Coating
165Fi74C . . . . . . PSN 50-953-7-165
212FllOOC . . . . . . PSN 50-953-7-212
l/2” Model F950 Intermediate Level
Pendent Sprinklers
Natural Brass Finish
NOTES
The O-ring Seal must be installed in
order to prevent possible dripping of
spray onto the link, due to the clear-
ance between the shield mounting hole
and the threaded end of the sprinkler.
Use the Model F799 Offset Wrench
shown in Figure E for installation of
natural brass, chrome plated and lead
coated sprinklers. Use an 8 or 10
inch crescent wrench to install wax
coated sprinklers.
165FI74C . . . . PSN 50-952-l-165
212F/lOOC . . . . PSN 50-952-l-21 2
286F/141C . . PSN 50-952-l-286
Chrome Plated Finish
165Fl74C . . . . PSN 50-952-g-165
212F/lOOC . . . . PSN 50-952-g-212
286Fl141C . . . . PSN 50-952-g-286
Sprinklers must be installed vertically
within 2O, in order for the spacing
cn’teria given in Figure C to apply.
CARE AND MAINTENANCE
Sprinklers must never be shipped or
stored where temperatures will exceed
lOOF/38C and must never be painted,
plated, coated or otherwise altered
after leaving the factory. Modified
sprinklers must be replaced.
Care must be exercised to avoid dam-
age to the sprinklers - both before
and after installation. Sprinklers dam-
aged by dropping, striking, wrench
twist/slippage, or the like, must be
replaced.
WARRANTY
Seller warrants for a period of one
year from the date of shipment (war-
ranty period) that the products fur-
nished hereunder will be free from
defects in material and workmanship.
For further details on Warranty, see
Price List.
Separately Ordered Parts:
Specify: Model F799 Offset Sprinkler
Wrench, PSN 56-452-l-001.
Replacement Parts:
Specify: (descriptidn) for use with
Intermediate Level Pendent Sprinkler,
PSN (specify).
Q-52 Deflector Shield for 112” NPT,
Plain Brass . . . PSN 91-070-l -052
Q-52 Deflector Shield for l/2” NPT,
Chrome Plated. . . PSN 91-070-9-052
O-Ring . . PSN 62-578-l-l 18
Speed Nut for 1/2”NPT ............
............. PSN 62-960-l -004
To order replacement pendent sprink-
lers, refer to Technical Data Sheet
TD517. Replacement Deflector
Shields are not available for upright
sprinklers.
CONVERSION FACTORS
Parenthetical metric conversions cited here-
in are approximate.
1 inch = 25.400 mm
1 foot = 0.3048 m
1 psi = 6.895 kPa
= 0.0689 bar*
= 0.0703 k cm2*
1 U.S.Gallon = 3.785 dm9
= 3.785 litres’
*Not recognized International System units
@Reg.trademarkof GRINNELL CORPORATION, 3 TYCO PARK,EXETER, NH 03833 A tyCOlNTERNATIONAL LTD. COMPANY
OBSOLETE