TFP230
Page 4 of 6
Design
Criteria
The TYCO Model SW-20 and SW-24,
11.2 K-factor, Extended Coverage Ordi-
nary Hazard (ECOH) Horizontal Sidewall
Sprinklers are for use in ordinary haz-
ard occupancies with non-combustible
un obstructed construction and with a
ceiling slope not exceeding 2 inches
per foot (9.2°), using the design crite-
ria provided in Table A, (as well as any
additional requirements specied in
NFPA 13 for Extended Coverage Side-
wall Spray Sprinklers).
A 36 inch (914 mm) clearance must
be maintained between the top of the
sprinkler deector and any miscella-
neous storage.
The SW-20 and SW-24 may be in stalled
on sloped ceilings in loading docks with
a maximum roof slope of 4 inches per
foot (18.4°) as shown in Figure 4 and
using the design criteria provided in
Table A.
The SW-20 and SW-24 can be used only
for exposed applications. The SW-20
and SW-24 cannot be recessed.
Installation
The TYCO Model SW-20 and SW-24,
11.2 K-factor, Extended Coverage Ordi-
nary Hazard (ECOH) Horizontal Sidewall
Sprinklers must be installed in accor-
dance with this section.
General Instructions
Do not install any bulb type sprinkler if
the bulb is cracked or there is a loss
of liquid from the bulb. With the sprin-
kler held horizontally, a small air bubble
should be present. The diameter of the
air bubble is approximately 1/16 in. (1,6
mm).
A leak tight 1/2 inch NPT sprinkler joint
should be obtained with a minimum
to maximum torque of 7 to 14 ft.-lbs.
(9,5 to 19,0 Nm). Higher levels of torque
can distort the sprinkler Inlet with con-
sequent leakage or impairment of the
sprinkler.
Do not attempt to compensate for in-
sufcient adjustment in the Sprinkler by
under- or over-tightening the Sprinkler/
Support Cup Assembly. Re-adjust the
position of the sprinkler tting to suit.
Step 1. Horizontal sidewall sprinklers
are to be installed with their center-
line perpendicular to the back wall and
parallel to the ceiling. The word “TOP”
on the deector is to face towards the
ceiling.
Step 2. With pipe thread sealant ap-
plied to the pipe threads, hand tighten
the sprinkler into the sprinkler tting.
Step 3. Tighten the sprinkler into the
sprinkler tting using only the W-Type
3 (End B) Sprinkler Wrench (Ref. Fig-
ure 3). With reference to Figures 1 and
2, the W-Type 3 Sprinkler Wrench is to
be applied to the sprinkler wrench ats
Care and
Maintenance
The TYCO Model SW-20 and SW-24,
11.2 K-factor, Extended Coverage Ordi-
nary Hazard (ECOH) Horizontal Sidewall
Sprinklers must be maintained and ser-
viced in accordance with this section.
Before closing a re protection system
main control valve for maintenance work
on the re protection system that it con-
trols, obtain permission to shut down the
affected re protection system from the
proper authorities and notify all person-
nel who may be affected by this action.
The owner is responsible for the in-
spection, testing, and maintenance of
their re protection system and devices
in compliance with this document, as
well as with the applicable standards
of the National Fire Protection Associa-
tion (e.g., NFPA 25), in addition to the
standards of any other authorities hav-
ing jurisdiction. Contact the installing
contractor or sprinkler manufacturer re-
garding any questions.
Automatic sprinkler systems should be
inspected, tested, and maintained by a
qualied Inspection Service in accor-
dance with local requirements and/or
national code.
Absence of an escutcheon, which is
used to cover a clearance hole, may
delay the time to sprinkler operation in
a re situation.
Automatic sprinklers must never be
painted, plated, coated or otherwise
altered after leaving the factory. Modi-
ed sprinklers must be replaced. Sprin-
klers that have been exposed to corro-
sive products of combustion, but have
not operated, should be replaced if they
cannot be completely cleaned by wiping
the sprinkler with a cloth or by brushing
it with a soft bristle brush.
Care must be exercised to avoid dam-
age to the sprinklers before, during, and
after installation. Sprinklers damaged
by dropping, striking, wrench twist/
slippage, or the like, must be replaced.
Also, replace any sprinkler that has a
cracked bulb or that has lost liquid from
its bulb. (Ref. Installation Section).
Frequent visual inspections are recom-
mended to be initially performed for
corrosion resistant coated sprinklers,
after the installation has been complet-
ed, to verify the integrity of the corro-
sion resistant coating. Thereafter, an-
nual inspections per NFPA 25 should
sufce; however, instead of in specting
from the oor level, a random sampling
of close-up visual inspections should
be made, so as to better determine the
exact sprinkler condi tion and the long
term integrity of the corrosion resistant
coating as it may be affected by the cor-
rosive conditions present.
Limited
Warranty
For warranty terms and conditions, visit
www.tyco-re.com.
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