Model WS Specific Application Window Sprinklers
Horizontal and Pendent Vertical Sidewall
5.6 K-factor
Page 1 of 8
AUGUST 2018
TFP620
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Always refer to Technical Data
Sheet TFP700 for the “INSTALLER
WARNING” that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and
installation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
Worldwide
Contacts
www.tyco-fire.com
General
Description
The TYCO Model WS Specific Appli-
cation Window Sprinklers are fast
response, glass bulb-type spray sprin-
klers available in Horizontal Sidewall
and Pendent Vertical Sidewall models.
These sprinklers are the first to be
specifically Listed to provide com-
plete wetting and coverage for heat
strengthened, tempered, or ceramic
glass windows using closed sprin-
klers. As part of the testing, the gas
flow required to achieve the time/
temperature relationship specified in
ASTM E119 was established in a test
furnace without sprinkler protection. A
window assembly protected with the
TYCO Model WS Window Sprinklers
was then installed in the test furnace,
and the same gas flow conditions were
maintained for a two-hour test period.
No cracking or visible damage to the
window was permitted during the test
period, even when a hose stream was
directed at the window.
The success of the Model WS Window
Sprinklers is based on their fast
response thermal sensitivity and on
their specially designed deflectors that
ensure that the spray pattern wets the
entire surface of the window.
Based on successful testing, the
Model WS Window Sprinklers can be
used as interior protection of windows
or glazing in a sprinklered building or
non-sprinklered building in accordance
with Section 104 of the IBC (“Alternate
Materials, Design and Methods of Con-
struction and Equipment”). Also, the
Model WS Window Sprinklers can be
used as an open sprinkler for “Outside
Sprinkler Protection against Exposure
Fire”, using the design requirements of
NFPA.
As with any specific application sprin-
kler, the installation instructions
included in this data sheet must be pre-
cisely followed. If there are additional
local or jurisdictional installation stan-
dards/codes for window sprinklers on
glazed window systems, this document
does not relieve the designer/installer
from these requirements. Consult your
local jurisdiction to verify if or when
these additional guidelines must be
followed.
NOTICE
TYCO Model WS Specific Application
Window Sprinklers described herein
must be installed and maintained in
compliance with this document, as
well as with the applicable standards
recognized by the approval agency, in
addition to the standards of any author-
ities having jurisdiction. Failure to do so
may impair the performance of these
devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Sprinkler
Identification
Number (SIN)
TY3388 - Horizontal Sidewall
TY3488 - Pendent Vertical Sidewall
TY3388 is a re-designation for C3388
TY3488 is a re-designation for C3488
