TFP312
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Care and
Maintenance
TYCO Model ESFR-25 Early Suppres-
sion, Fast Response 25.2K Pendent
Sprinklers must be maintained and ser-
viced in accordance with this section.
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system that
it controls, permission to shut down the
affected fire protection system must be
obtained from the proper authorities
and notify all personnel who may be
affected by this action.
Sprinklers which are found to be
leaking or exhibiting visible signs of
corrosion must be replaced.
Automatic sprinklers must never be
painted, plated, coated, or other-
wise altered after leaving the factory.
Modified sprinklers must be replaced.
Sprinklers that have been exposed to
corrosive 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
damage to the sprinklers before,
during, and after installation. Sprin-
klers damaged by dropping, striking,
wrench twist/slippage, or the like, must
be replaced. Also, replace any sprin-
kler that has a cracked bulb or that has
lost liquid from its bulb. See Installation
section for additional information.
The owner is responsible for the
inspection, testing, and maintenance of
their fire protection system and devices
in compliance with this document, as
well as with the applicable standards
of the National Fire Protection Associ-
ation, such as NFPA 25, in addition to
the standards of any authorities having
jurisdiction. Contact the installing con-
tractor or product manufacturer with
any questions.
Automatic sprinkler systems are rec-
ommended to be inspected, tested,
and maintained by a qualified Inspec-
tion Service in accordance with local
requirements and/or national codes.
Limited
Warranty
For warranty terms and conditions, visit
www.tyco-fire.com.
Ordering
Procedure
Contact your local distributor for avail-
ability. When placing an order, indicate
the full product name and part number
(P/N).
Sprinkler Assemblies
Specify: Model ESFR-25 Early Sup-
pression, Fast Response 25.2K
Pendent Sprinklers (TY9226), (specify
temperature rating), with Natural Brass
finish, P/N (specify):
165°F (74°C) . . . . . . . . . . . . . . . . . . 58-441-1-165
212°F (100°C) . . . . . . . . . . . . . . . . . 58-441-1-214
Special Order
Sprinkler Assemblies with
ISO 7-1 Thread Connection
Specify: Model ESFR-25, Early Sup-
pression, Fast Response 25.2K
Pendent Sprinklers (TY9226) with
ISO 7-1 thread connection, (specify
temperature rating), with Natural Brass
finish, P/N (specify):
165°F (74°C) . . . . . . . . . . . . . . . . . . 58-442-1-165
212°F (100°C) . . . . . . . . . . . . . . . . . 58-442-1-214
Sprinkler Wrench
Specify: W-Type 1 Sprinkler Wrench,
P/N 56-872-1-025
Installation
TYCO Model ESFR-25 Early Suppres-
sion, Fast Response 25.2K Pendent
Sprinklers must be installed in accor-
dance with this section.
General Instructions
Damage to the fusible Link Assem-
bly during installation can be avoided
by handling the sprinkler by the frame
arms only and by using the appropri-
ate sprinkler wrench. Do not apply
pressure to the fusible Link Assembly.
Failure to do so can lead to an unstable
link assembly and premature activation
of the sprinkler. Damaged sprinklers
must be replaced.
A leak-tight 1 in. NPT sprinkler joint
should be obtained by applying a min-
imum-to-maximum torque of 20 to 30
lb-ft (26,8 to 40,2 N∙m). Higher levels
of torque can distort the sprinkler inlet
with consequent leakage or impairment
of the sprinkler.
Note:
Install the Model ESFR-25 Pendent
Sprinkler in the pendent position (see Figure
2).
Step 1.
With pipe thread sealant
applied, hand-tighten the sprinkler into
the sprinkler fitting. Do not apply pres-
sure to the Link Assembly, and handle
the Model ESFR-25 Pendent Sprinkler
only by the Frame arms.
Step 2.
Wrench-tighten the Model
ESFR-25 Pendent Sprinkler using only
the W-Type 1 Sprinkler Wrench (see
Figure 2) and by fully engaging (seating)
the wrench on the sprinkler wrench
flats (see Figure 1).
Step 3.
After installation, inspect the
Link Assembly of each Model ESFR-25
Pendent Sprinkler for damage. In par-
ticular, verify that the Link Assembly
and Hook are positioned as illustrated
in Figure 1, and that the Link Assem-
bly is not bent, creased, or forced out
of normal position in any way. Replace
damaged sprinklers.
"FITTING SIDE"
TOWARDS SPRINKLER
FITTING
WRENCH
RECESS
FIGURE 2
W-TYPE 1
SPRINKLER WRENCH
