Tyco LFII Series Manual

Tyco LFII Series Manual

Residential sprinklers 5.8 k-factor pendent and recessed pendent wet pipe systems
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Series LFII Residential Sprinklers
5.8 K-factor Pendent and Recessed Pendent
Wet Pipe Systems
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.
Scan the QR code or enter the URL
in a web browser to access the most
up-to-date electronic version of this
document. Data rates may apply.
docs.jci.com/tycofire/tfp401
General
Description
The TYCO Series LFII Residential
Pendent and Recessed Pendent Sprin-
klers (TY3934) are decorative, fast
response, frangible bulb sprinklers
designed for use in residential occu-
pancies such as homes, apartments,
dormitories, and hotels. When aesthet-
ics and optimized flow characteristics
are the major consideration, the Series
LFII Residential Sprinklers (TY3934)
should be the first choice.
Page 1 of 4
The Series LFII Residential Sprinklers
are intended for use in the following
scenarios:
• wet pipe residential sprinkler sys-
tems for one- and two-family dwell-
ings and mobile homes per NFPA
13D
• wet pipe residential sprinkler sys-
tems for residential occupancies up
to and including four stories in height
per NFPA 13R
• wet pipe sprinkler systems for the
residential portions of any occu-
pancy per NFPA 13
The recessed version of the Series
LFII Residential Sprinklers is intended
for use in areas with finished ceil-
ings. It employs a two-piece Style 20
Recessed Escutcheon. The Recessed
Escutcheon provides 1/4 in. (6,4 mm)
of recessed adjustment or up to 1/2 in.
(12,7 mm) of total adjustment from the
flush ceiling position. The adjustment
provided by the Recessed Escutcheon
reduces the accuracy to which the pipe
drops to the sprinklers must be cut.
The Series LFII Residential Sprinklers
have been designed with heat sensi-
tivity and water distribution charac-
teristics proven to help in the control
of residential fires and to improve the
chance for occupants to escape or be
evacuated.
Corrosion-resistant coatings, where
applicable, are utilized to extend the life
of copper alloy sprinklers beyond that
which would otherwise be obtained
when exposed to corrosive atmo-
spheres. Although corrosion-resistant
coated sprinklers have passed the
standard corrosion tests of the appli-
cable Approval agencies, the testing is
not representative of all possible cor-
rosive atmospheres. Consequently,
it is recommended that the end user
be consulted with respect to the suit-
ability of these coatings for any given
corrosive environment. The effects of
ambient temperature, concentration of
chemicals, and gas/chemical velocity
should be considered, as a minimum,
along with the corrosive nature of the
chemical to which the sprinklers will be
exposed.
AUGUST 2022
Worldwide
www.tyco-fire.com
Contacts
NOTICE
The Series LFII Residential Pendent and
Recessed Pendent Sprinklers (TY3934)
described herein must be installed and
maintained in compliance with this doc-
ument and the applicable standards
of the NATIONAL FIRE PROTECTION
ASSOCIATION (NFPA), in addition to
the standards of any authorities 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.
TFP401

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Summary of Contents for Tyco LFII Series

  • Page 1 The Series LFII Residential Pendent and standard corrosion tests of the appli- Recessed Pendent Sprinklers (TY3934) cable Approval agencies, the testing is The TYCO Series LFII Residential described herein must be installed and not representative of all possible cor- Pendent and Recessed Pendent Sprin- maintained in compliance with this doc- rosive atmospheres.
  • Page 2 Approvals ² • A minimum discharge of 0.1 gpm/ft UL and C-UL Listed The TYCO Series LFII Residential over the design area comprised Pendent and Recessed Pendent Sprin- Certified to all requirements of of the four most hydraulically klers (TY3934) are to be installed in...
  • Page 3 A leak-tight 1/2 in. NPT sprinkler joint IN TO ENSURE should be obtained by applying a ENGAGEMENT minimum-to-maximum torque of 7 to The TYCO Series LFII Residential WITH SPRINKLER 14 lb-ft (9,5 to 19,0 N∙m). Higher levels Pendent and Recessed Pendent Sprin- WRENCHING AREA...
  • Page 4 Sprinklers must be installed in accor- tion Service in accordance with local requirements and/or national codes. dance with the following instructions. The TYCO Series LFII Residential Pendent and Recessed Pendent Sprin- Step 1. Install pendent sprinklers in the Limited klers (TY3934) must be maintained...
  • Page 5 12-18 Added note indicating sprinklers with polyester finish are UL Listed as corrosion resistant sprinklers. Updated Tyco® branding and document format; Added Johnson Controls copyright; Added disclaimer 08-18 stating specifications and information subject to change without notice; Added reference to Regulatory and Health Warning Technical Data Sheet TFP2300.

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Ty3934

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