Tyco TN-25 User manual

Model TN-25
25.2 (K360) K-factor
Horizontal Spray Nozzle, Open
Page 1 of 4 APRIL 2015 TFP850
IMPORTANT
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
spraying system, the configuration of
the hazard, and wind/draft/ventilation
conditions. Because of these varia-
tions, the design of fixed water spray
systems must only be performed by
experienced designers who thoroughly
understand the limitations as well as
capabilities of such systems.
The Tunnel Operator is responsible for
maintaining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Technical
Data
Approvals
UL and C-UL Listed
Minimum Working Pressure
10 psi (0,7 bar)
Maximum Working Pressure
30 psi (2,1 bar)
Minimum Height to Finish Grade
18 ft (5,5 m)
Maximum Height to Finish Grade
40 ft (12,2 m)
Pipe Thread Connections
1 Inch NPT or ISO 7-R 1
Discharge Coefficient
K=25.2 gpm/psi1/2 (362,9 lpm/bar1/2)
Finish
Natural Brass
Physical Characteristics
Frame . . . . . . . . . . . . . . . . . . . . . . . . Brass
Deflector Screw . . . . . . . . . Stainless Steel
Deflector. . . . . . . . . . . . . . . . . . . . . . Brass
Deflector Nut . . . . . . . . . . . . . . . . . Bronze
Design
Criteria
The TYCO Model TN-25 K=25.2 Hor-
izontal Spray Nozzle is intended for
integration into a water spray, deluge
fire protection system designed in
accordance with the applicable stan-
dards recognized by any authorities
having jurisdiction.
Nozzle Orientation
The Model TN-25 Nozzle must be
installed in a horizontal orientation.
Refer to Figures 1 and 2.
General
Description
The TYCO Model TN-25 Horizontal
Spray Nozzle having a 25.2 (K360)
K-factor is a specialized open nozzle
for use in tunnel fire protection deluge
systems, providing an improved alter-
native to traditional designs. With its
ability to provide extended coverage,
the Model TN-25 Nozzle allows for a
single pipe to run the length of a tunnel,
compared to traditional designs that
use multiple pipes in order to provide
sufficient coverage. The Model TN-25
Nozzle is an open nozzle designed to
be integrated into a deluge fire protec-
tion system.
The Model TN-25 Nozzle provides
protection of coverage areas up to
16 ft.-4 inches x 24 ft.-7 inches
(5,0 m x 7,5 m) as compared to stan-
dard coverage sprinklers often used in
tunnel fire protection system designs
having a maximum coverage area of
10 ft. x 10 ft. (3,0 m x 3,0 m).
NOTICE
The TYCO Model TN-25 Horizontal
Spray Nozzle described herein must
be installed and maintained in compli-
ance with this document and with the
applicable standards recognized by any
authorities having jurisdiction. Failure
to do so may impair the performance
of these devices.
The design of individual fixed water
spray systems for fire protection
can vary considerably, depending
on the characteristics and nature of
the hazard, the basic purpose of the
Corrosion Resistance
It is recommended that the Tunnel
Operator be consulted with respect
to the suitability of the materials of
construction and finish for any given
corrosive environment. The effects of
ambient temperature, concentration of
chemicals, and gas/chemical velocity,
should be considered, at a minimum,
along with the corrosive nature to
which the nozzles may be exposed.
The pipe, fittings, hangers, and hanger
components must be suitable for use in
the application environment.
Obstructions
The maximum allowable vertical and
horizontal distance that the bottom of
an obstruction can be away from the
Model TN-25 Nozzle is provided in
Graph A.
Non-continuous suspended obstruc-
tions such as air handlers, lights, and
the like are to meet the “4x rule” of
Figure 6; within 5 feet of the nozzle
deflector in the area below the nozzle,
the obstruction must be located four
(4) times the longest dimension of the
obstruction as defined in Figure 6, to
a maximum of 60 inches. No obstruc-
tions are allowed to be located within
the designated shaded region. Care
must be taken to place large obstruc-
tions running parallel to the nozzle dis-
charge (i.e., signs) in the areas between
the nozzles.
Installation
The TYCO Model TN-25 K=25.2 Hor-
izontal Spray Nozzle, as shown in
Figures 1 and 2, is to be installed in
accordance with this section.

TFP850
Page 2 of 4
Step 1. Ensure that the Drop Nipple,
Tee, Arm-Over Nipples, and Reduc-
ers have been properly assembled per
Figure 2 prior to installing the Model
TN-25 Nozzle.
Step 2. With pipe-thread sealant
applied to the nozzle threads, hand-
tighten the Model TN-25 Nozzle into
the Reducer.
Step 3. The Model TN-25 Nozzle must
be tightened using only the W-Type
1 Sprinkler Wrench (Figure 3). Fully
engage nozzle wrench flats (Figure 1)
and wrench tighten. A leak-tight 1 inch
NPT or ISO 7-R 1 sprinkler joint should
be obtained by applying a minimum-
to-maximum torque of 20 to 30 ft.-
lbs. (26,8 to 40,2 Nm). Higher levels of
torque can distort the nozzle inlet with
consequent leakage or impairment of
the nozzle. Ensure the markings on the
deflector face towards the ceiling.
Step 4. Repeat Steps 2 and 3 for the
opposite side of the assembly.
Care and
Maintenance
The TYCO Model TN-25 K=25.2 Hor-
izontal Spray Nozzle must be main-
tained and serviced 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.
Nozzles which are exhibiting visible
signs of corrosion must be replaced.
Care must be exercised to avoid
damage to the nozzles before, during,
and after installation. Nozzles damaged
by dropping, striking, wrench twist/slip-
page, or the like, must be replaced (Ref.
Installation section).
The Tunnel Operator is responsi-
ble for the inspection, testing, and
maintenance of their fire protection
system and devices in compliance
with this document, in addition to the
standards of any authorities having
jurisdiction. Contact the installing con-
tractor or product manufacturer with
any questions.
Fire protection systems are recom-
mended to be inspected, tested, and
maintained by a qualified Inspec-
tion Service in accordance with local
requirements and/or national codes.
NOTICE
The Model TN-25 Nozzle must be
installed in accordance with the pipe
dimensions shown in Figure 2. Failure
to do so will impair the intended perfor-
mance of the system.
General Instructions
The Model TN-25 Nozzle is to be ori-
ented horizontally with the plane
created by its two frame arms paral-
lel with the ceiling or parallel with the
finished grade, in the case of a non-
flat ceiling.
Components:
WRENCH
FLATS
FRAME
ARMS
3-3/4"
(95,3 mm)
2-1/16"
(52,4 mm)
TOP OF
DEFLECTOR
123
3
4
-
-
1
2
-
-
4
Deector
Nut
Deector
Deector
Screw
Frame
7/8"
(22,2 mm)
CENTERLINE
NOZZLE
WATERWAY
9/16"(14,3 mm)
NOMINAL MAKE-IN
1" NPT
or
ISO 7-R 1
TN-25
NOZZLES
REDUCERS:
2" x 1"
(DN50 x DN25)
ARM-OVER
NIPPLES:
2" x 5" LONG
(DN50 x 125 mm)
DROP NIPPLE:
2" x 8" LONG
(DN50 x 200 mm)
TEE:
2" x 2" x 2"
(DN50 x DN50 x DN50)
MAIN
FITTING
OUTLET
2" (DN50)
ALL SIZES
SHOWN
MINIMUM
WRENCH
RECESS
"FITTING SIDE"
TOWARD
NOZZLE
FITTING
FIGURE 1
MODEL TN-25 HORIZONTAL SPRAY NOZZLE
NOMINAL DIMENSIONS
FIGURE 2
MODEL TN-25 HORIZONTAL SPRAY NOZZLE
TYPICAL INSTALLATION
FIGURE 3
W-T Y PE 1
SPRINKLER WRENCH

TFP850
Page 3 of 4
16 PSI (1,1 bar)
AND 30 PSI (2,1 bar)
24'-7" (7,5 m)
TN-25
NOZZLE
16'-4"
(5,0 m)
10 PSI (0,7 bar)
19'-7" (6,0 m)
NOZZLES
AND
FITTINGS
SHOWN
ENLARGED
16'-4"
(5,0 m)
COVERAGE
AREAS
ADJACENT
COVERAGE
AREAS
18'-0"
(5,5 m)
MINIMUM
40'-0"
(12,2 m)
MAXIMUM
TN-25
NOZZLE
FINISHED
GRADE
VEHICLES SHOWN
FOR REFERENCE ONLY
NOZZLES
AND FITTINGS
SHOWN
ENLARGED
FIGURE 4
MODEL TN-25 HORIZONTAL SPRAY NOZZLE
COVERAGE AND SPACING – PLAN
FIGURE 5
MODEL TN-25 HORIZONTAL SPRAY NOZZLE
COVERAGE AND SPACING – ELEVATION

GLOBAL HEADQUARTERS | 1400 Pennbrook Parkway, Lansdale, PA 19446 | Telephone [phone]
TFP850
Page 4 of 4
Copyright © 2015 Tyco Fire Products, LP. All rights reserved.
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).
Model TN-25 Nozzle Assemblies
Specify: Model TN-25 K=25.2 Hori-
zontal Spray Nozzle(s), Natural Brass,
1 inch NPT Thread Connection,
P/N 49-025-1-001
Special Order
Model TN-25 Nozzle Assembly with
ISO 7-R 1 Thread Connection
Specify: Model TN-25, K=25.2,
Horizontal Spray Nozzle with ISO 7-R
1 Thread Connection, Natural Brass,
P/N 49-025-1-002
Sprinkler Wrench
(separately ordered)
Specify: W-Type 1 Sprinkler Wrench,
P/N 56-872-1-025
PLAN VIEW
ELEVATION VIEW
6
(1,8)
0
2
(0,6)
4
(1,2)
8
(2,4)
6
(1,8)
2
(0,6)
4
(1,2)
8
(2,4)
OBSTRUCTIONS
ALLOWED
OBSTRUCTIONS
ALLOWED
OBSTRUCTIONS
ALLOWED
OBSTRUCTIONS NOT ALLOWED
OBSTRUCTIONS
PER 4X RULE
MAXIMUM VERTICAL DISTANCE FROM
TOP OF DEFLECTOR TO OBSTRUCTION
FEET (METERS)
(0,3)
1
0
(0,3)
1
(0,9)
3
(1,5)
5
0 6
(1,8)
2
(0,6)
4
(1,2)
8
(2,4)
10
(3,0)
12
(3,7)
14
(4,3)
6
(1,8)
2
(0,6)
4
(1,2)
8
(2,4)
10
(3,0)
12
(3,7)
14
(4,3)
OBSTRUCTIONS WITHIN AREA 5'-0" (1,5 m) SPHEREICAL RADIUS
BELOW TOP OF NOZZLE DEFLECTOR MUST BE LOCATED
MINIMUM 4 TIMES LONGEST DIMENSION OF OBSTRUCTION
FROM END OF DEFLECTOR (REF. FIGURE 6)
2.
OBSTRUCTIONS ALLOWED IN AREA ABOVE AND BELOW NOZZLE
DEFLECTOR AS DEFINED ON ELEVATION VIEW
3.
0 = CENTERLINE OF NOZZLE1.
NOTES:
PLACE LARGE OBSTRUCTIONS (SIGNS, ETC.) PARALLEL TO
NOZZLE DISCHARGE IN AREAS BETWEEN NOZZLES
4.
MAXIMUM LATERAL DISTANCE FROM
CENTERLINE OF NOZZLE TO OBSTRUCTION
FEET (METERS)
DISTANCE FROM END OF DEFLECTOR TO OBSTRUCTION
FEET (METERS)
DISTANCE FROM END OF DEFLECTOR TO OBSTRUCTION
FEET (METERS)
0
OBSTRUCTIONS
ALLOWED
SEE ELEVATION VIEW
FOR OBSTRUCTION
ALLOWANCES
IN THIS AREA
2
1
1
1
1
3
3
END OF
TN-25 NOZZLE
DEFLECTOR
A ≥ 4C or 4D
A ≤ 60" (1,5 m)
APPLY GREATEST
VALUE
RULES:
OBSTRUCTION
D
C
A
GRAPH A
MODEL TN-25 HORIZONTAL SPRAY NOZZLE
OBSTRUCTION DATA
FIGURE 6
MODEL TN-25 HORIZONTAL
SPR AY NOZZLE
OBSTRUCTION 4X RULE