Tyco DS-C Series User manual

General
Description
TYCO Series DS-C Dry Type Sprinklers,
5.6K Concealed Pendent, Standard
(5 mm Bulb) and Quick Response (3
mm Bulb) and Standard Coverage,
are decorative sprinklers featuring a
at cover plate designed to conceal
the sprinkler. This type of sprinkler is
typically used to provide a sprinkler
drop from an unheated attic into an
area where aesthetics is a concern,
such as nursing homes, restaurants,
and schools.
Each unit includes a Cover Plate
Assembly that conceals the sprinkler
operating components above the
ceiling. The separable two-piece design
of the Cover Plate and Support Cup
Assemblies allows installation of the
sprinklers and pressure testing of
the re protection system prior to
installation of a suspended ceiling or
application of the nish coating to a
xed ceiling. They also permit removal
of suspended ceiling panels for access
to building service equipment without
having to rst shut down the re protec-
tion system and remove sprinklers.
Also, the separable two-piece design of
the Sprinkler provides for 1/2 inch (12,7
mm) of vertical adjustment.
Series DS-C Sprinklers are shipped
with a Disposable Protective Cap.
The Protective Cap is temporarily
removed for installation, and then it
can be replaced to help protect the
sprinkler while the ceiling is installed or
nished. The tip of the Protective Cap
can also be used to mark the center of
the ceiling hole into plaster board and
ceiling tiles by gently pushing the ceiling
product against the Protective Cap.
When the ceiling installation is complete
the Protective Cap is removed and the
Cover Plate Assembly installed.
NOTICE
Series DS-C Dry Type Concealed
Pendent Sprinklers described herein
must be installed and maintained in
compliance with this document and the
applicable standards of the National
Fire Protection Association, 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 condition.
The installing contractor or sprinkler
manufacturer should be contacted with
any questions.
Series DS-C Dry Type Concealed
Pendent Sprinklers must only be
installed in fittings that meet the
requirements of the Design Criteria
section.
Sprinkler
Identification
Numbers (SINs)
TY3535 - 3 mm Bulb
TY3555 - 5 mm Bulb
Technical
Data
Approvals
UL and C-UL Listed
NYC Approved under MEA 352-01-E-2
Maximum Working Pressure
175 psi (12,1 bar)
Inlet Thread Connections
• 1 inch NPT (Standard Order)
• ISO 7-R1
Discharge Coefficient
K=5.6 GPM/psi1/2 (80,6 LPM/bar1/2)
Temperature Ratings
• 155°F (68°C) Sprinkler with
139°F (59°C) Cover Plate
• 200°F (93°C) Sprinkler with
165°F (74°C) Cover Plate
Adjustment
1/2 inch (12,7 mm)
Finishes
Refer to Ordering Procedure section.
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
components. 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.
Series DS-C Dry Type Sprinklers
5.6K Concealed Pendent
Standard and Quick Response, Standard Coverage
Page 1 of 8 JUNE 2013 TFP515
www.tyco-fire.com

INSERT
FRAME
BULB
DEFLECTOR
GUIDE PIN
VENT HOLE
CASING
GUIDE TUBE
SPRING
INLET
YOKE
INLET BAND
WATER
TUBE
BULB
SEAT
COMPRESSION
SCREW
EJECTION
SPRING
COVER
PLATE
SOLDER
TAB
RETAINER
WITH THREAD
DIMPLES
DEFLECTOR
(DROPPED
POSITION)
PLUG WITH
GASKETED
SPRING
PLATE SEAL
SUPPORT
CUP WITH
ROLL FORMED
THREADS
THREAD INTO
SUPPORT
CUP UNTIL
MOUNTING
SURFACE IS
FLUSH WITH
CEILING
COVER PLATE
RETAINER
ASSEMBLY
SPRINKLER
SUPPORT CUP
ASSEMBLY
FIGURE 1
SERIES DS-C STANDARD COVERAGE DRY-TYPE
CONCEALED PENDENT SPRINKLER
ASSEMBLY
Physical Characteristics
Inlet.....................Copper
Plug ....................Copper
Yoke ..............Stainless Steel
Casing ............... Galvanized
Carbon Steel
Insert ................... Bronze
Bulb Seat ..........Stainless Steel
Bulb ......................Glass
Deector................. Bronze
Frame ................... Bronze
Guide Tube .........Stainless Steel
Water Tube .........Stainless Steel
Spring.............Stainless Steel
Gasketed Spring
Plate Seal .........Beryllium Nickel
w/TEFLON
Support Cup........Chrome Plated
Steel
Guide Pins .........Stainless Steel
Compression Screw . . . . . . . . Brass
Cover Plate................ Brass
Retainer .................. Brass
Ejection Spring ......Stainless Steel
Operation
When TYCO Series DS-C Dry Type
Concealed Pendent Sprinklers is
in service, water is prevented from
entering the assembly by the Plug with
Gasketed Spring Plate Seal (Figure 1) in
the Inlet of the Sprinkler.
When exposed to heat from a re, the
Cover Plate, which is normally soldered
to the Retainer at three points, falls
away to expose the Sprinkler Assembly.
At this point the Deector supported by
the Guide Pins drops down to its opera-
tional position.
The glass bulb contains a uid that
expands when exposed to heat. When
the rated temperature is reached, the
uid expands sufciently to shatter
the glass bulb, and the Bulb Seat is
released.
The compressed Spring is then able to
expand and push the Water Tube as
well as the Guide Tube outward. This
action simultaneously pulls inward on
the Yoke, withdrawing the Plug with
Gasketed Spring Plate Seal, from the
Inlet, allowing the sprinkler to activate
and ow water.
TFP515
Page 2 of 8

COVER PLATE
RETAINER
ASSEMBLY
SPRINKLER FITTING
(REFER TO DESIGN
CRITERIA SECTION)
FACE OF
SPRINKLER
FITTING
2-1/2" DIA.
(63,5 mm)
SPRINKLER
SUPPORT CUP
ASSEMBLY
1/2" (12,7 mm)
THREADED
ADJUSTMENT
ORDER
LENGTHS:
5" (127,0 mm)
to 48" (1219,2 mm)
IN 1/4" (6,4 mm)
INCREMENTS
FACE
OF CEILING,
RETAINING RING
MOUNTING
SURFACE
3/16" to 11/16"
(4,8 to 17,5 mm)
REFERENCE
3/16"
(4,8 mm) FACTORY
PRESET GAP
3/32" (2,4 mm)
DEFLECTOR
IN DROPPED
POSITION
3-1/4" DIA.
(82,6 mm)
FIGURE 2
SERIES DS-C STANDARD COVERAGE DRY-TYPE
CONCEALED PENDENT SPRINKLER
INSTALLATION DIMENSIONS
2-1/2" DIA.
(63,5 mm)
CLEARANCE
HOLE
FIGURE 3
DISPOSABLE
PROTECTIVE CAP
ACCEPTS
1/2" SOCKET
DRIVE
ALIGN
ARROWS WITH
FRAME ARMS
7/8" (23 mm)
SQUARE
SUPPORT
CUP
FRAME
ARM
FIGURE 4
RFII SPRINKLER WRENCH
TFP515
Page 3 of 8

Design
Criteria
TYCO Series DS-C 3 mm bulb-type Dry
Type Concealed Pendent Sprinklers
(TY3535) are UL and C-UL Listed
as quick response, standard spray
sprinklers for use in accordance with
the current NFPA standard.
Series DS-C 5 mm bulb-type Dry Type
Concealed Pendent Sprinklers (TY3555)
are UL and C-UL Listed as standard
response, standard spray sprinklers
for use in accordance with the current
NFPA standard.
Series DS-C Dry Type Sprinklers are
only listed when installed with Series
RFII Concealed Cover Plates having
a factory-applied painted or metallic
nish.
Series DS-C Dry Type Sprinklers must
not be used in applications where the
air pressure above the ceiling is greater
than that below. Down drafts through
the Support Cup could delay sprinkler
operation in a re situation.
Sprinkler Fittings
Install 1 inch NPT Series DS-C Dry Type
Concealed Pendent Sprinklers in the 1
inch NPT outlet or run of the following
ttings:
• malleable or ductile iron threaded
tee ttings that meet the dimen-
sional requirements of ANSI B16.3
(Class 150)
• cast iron threaded tee ttings that
meet the dimensional requirements
of ANSI B16.4 (Class 125)
Do not install Series DS-C Dry Type
Concealed Pendent Sprinklers into
elbow ttings. The Inlet of the sprinkler
can contact the interior of the elbow.
The unused outlet of the threaded tee
is plugged as shown in Figures 5 and 6.
You can also install Series DS-C Dry-
Type Sprinklers in the outlet.
The conguration shown in Figure 5 is
only applicable for wet pipe systems
where the sprinkler tting and water-
lled pipe above the sprinkler tting are
not subject to freezing and where the
length of the Dry Type Sprinkler has the
minimum exposure length depicted in
Figure 7. Refer to the Exposure Length
section.
For wet pipe system installations of
1 inch NPT Series DS-C Dry Type
Sprinklers connected to CPVC piping,
use only the following TYCO CPVC
ttings:
• 1” x 1” NPT Female Adapter
(P/N 80145).
• 1” x 1” x 1” NPT Sprinkler Head
Adapter Tee (P/N 80249).
For dry pipe system installations, use
only the side outlet of maximum 2-1/2
inch reducing tee when locating Series
DS-C Dry Type Sprinklers directly
below the branch line. Otherwise, use
the conguration shown in Figure 6 to
assure complete water drainage from
above Series DS-C Dry Type Sprinklers
and the branch line. Failure to do so
may result in pipe freezing and water
damage.
NOTICE
Do not install Series DS-C Dry Type
Sprinklers into any other type fitting
without first consulting the Technical
Services Department. Failure to use the
appropriate fitting may result in one of
the following:
• failure of the sprinkler to operate properly
due to formation of ice over the Inlet
Plug or binding of the Inlet Plug
• insufficient engagement of the Inlet
pipe-threads with consequent leakage
Drainage
In accordance with the minimum
requirements of the National Fire
Protection Association for dry pipe
sprinkler systems, branch, cross, and
feed-main piping connected to Dry
Sprinklers and subject to freezing
temperatures must be pitched for
proper drainage.
Exposure Length
When using Dry Type Sprinklers in wet
pipe sprinkler systems to protect areas
subject to freezing temperatures, use
Table A to determine a sprinkler’s appro-
priate exposed barrel length to prevent
water from freezing in the connecting
pipes due to conduction. The exposed
barrel length measurement must be
taken from the face of the sprinkler
tting to the surface of the structure or
insulation that is exposed to the heated
area. Refer to Figure 7 for an example.
For protected area temperatures
between those given above, the
minimum recommended length from
the face of the tting to the outside of
the protected area may be determined
by interpolating between the indicated
values.
Do not attempt to add additional insu-
lation around the barrel in the heated
area as a method to minimize conden-
sation. This will reduce the calculated
“Exposure Length”.
Clearance Space
In accordance with Section 8.4.9.2 of
the 2010 edition of NFPA 13, where dry
sprinklers are connected to wet pipe
sprinkler systems protecting insulated
freezer structures, the clearance space
around the sprinkler barrel of Dry Type
Sprinklers must be sealed. Due to
temperature differences between two
areas, the potential for the formation
of condensation in the sprinkler and
subsequent ice build-up is increased. If
this condensation is not controlled, ice
build-up can occur that might damage
the dry type sprinkler and/or prevent
proper operation in a re situation.
Use of the Model DSB-2 Dry Sprinkler
Boot, described in technical data sheet
TFP591 and shown in Figure 8, will
provide the recommended seal.
NOTICE
For applications where a bore greater
than 1-3/4 inches in diameter has
been cut through the entire height of
an insulated freezer ceiling creating a
cavity above the sprinkler support cup
(Figure 8), the cavity must not be lled.
TFP515
Page 4 of 8

Installation
TYCO Series DS-C Dry Concealed
Pendent Sprinklers must be installed in
accordance with this section.
Series DS-C Dry Type Concealed
Pendent Sprinklers must only be
installed in ttings that meet the
requirements of the Design Criteria
section. Refer to the Design Criteria
section for other important require-
ments regarding piping design and
sealing of the clearance space around
the Sprinkler Casing.
Do not install any bulb type sprinkler if
the bulb is cracked or there is a loss of
liquid from the bulb. With the sprinkler
held horizontally, a small air bubble
should be present. The diameter of the
air bubble is approximately 1/16 inch
(1,6 mm).
A leak-tight 1 inch NPT 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 may distort the sprinkler
Inlet with consequent leakage or impair-
ment of the sprinkler.
Do not attempt to compensate for
insufcient adjustment in the Sprinkler
Assembly by under or over-tightening
the Sprinkler/Support Cup Assembly.
Re-adjust the position of the sprinkler
tting to suit.
Step 1. Install the sprinkler in the
pendent position with the centerline
of the sprinkler perpendicular to the
mounting surface.
Step 2. With a non-hardening pipe-
thread sealant such as TEFLON pipe-
thread sealant applied to the Inlet
threads, hand-tighten the sprinkler into
the sprinkler tting.
Step 3. Wrench-tighten the sprinkler
using either:
• a pipe wrench on the Inlet Band or
the Casing (Figure 1).
• the RFII Sprinkler Wrench on the
wrench at (Figure 4).
Apply the wrench recess of the RFII
Sprinkler Wrench to the wrench at.
Note: If sprinkler removal becomes
necessary, remove the sprinkler using
the same wrenching method noted
above. Sprinkler removal is easier when
a non-hardening sealant was used
and torque guidelines were followed.
After removal, inspect the sprinkler for
damage.
When using the RFII Sprinkler
Wrench, temporarily remove the
Protective Cap. Replace the Protective
Cap (Figure 4) by pushing it upwards
until it bottoms out against the Support
Cup. The Protective Cap helps prevent
damage to the Deector and Arms
during ceiling installation and/or during
application of the nish coating of the
ceiling. It may also be used to locate the
center of the clearance hole by gently
pushing the ceiling material up against
the center point of the Protective Cap.
As long as the Protective Cap remains
in place, the system is considered to be
“Out of Service”.
Step 4. After installing the ceiling and
applying a ceiling nish, with the 2-1/2
inch (63,5 mm) diameter hole and in
preparation for installing the Cover
Plate Assembly, remove and discard
the Protective Cap, and verify that the
Deector moves up and down freely. If
the Sprinkler has been damaged and
the Deector does not move up and
down freely, replace the entire Sprinkler
assembly. Do not attempt to modify or
repair a damaged sprinkler.
Step 5. Screw on the Cover Plate/
Retainer Assembly until the Retainer
(Figure 2) contacts the ceiling. Do not
continue to screw on the Cover Plate/
Retainer Assembly such that it lifts a
ceiling panel out of its normal position.
If the Cover Plate/Retainer Assembly
cannot be engaged with the Support
Cup or the Cover Plate/Retainer
Assembly cannot be engaged suf-
ciently to contact the ceiling, reposition
the Sprinkler Fitting.
Ambient Temperature
Exposed to Discharge End of
Sprinkler
Temperatures for Heated Areaa
40°F (4°C) 50°F (10°C) 60°F (16°C)
Minimum Exposed Barrel Length, Inches (mm)b
40°F (4°C) 0 0 0
30°F (-1°C) 0 0 0
20°F (-7°C) 4(100) 0 0
10°F (-12°C) 8 (200) 1 (25) 0
0°F (-18°C) 12 (305) 3(75) 0
-10°F (-23°C) 14 (355) 4(100) 1(25)
-20°F (-29°C) 14 (355) 6(150) 3(75)
-30°F (-34°C) 16 (405) 8 (200) 4 (100)
-40°F (-40°C) 18 (455) 8 (200) 4 (100)
-50°F (-46°C) 20 (510) 10 (255) 6(150)
-60°F (-51°C) 20 (510) 10 (255) 6(150)
NOTES:
a. For protected area temperatures that occur between values listed above, use the next cooler temperature.
b. These lengths are inclusive of wind velocities up to 30 mph (18,6 kph).
TABLE A
EXPOSED SPRINKLER BARRELS IN WET PIPE SYSTEMS
MINIMUM RECOMMENDED LENGTHS
TFP515
Page 5 of 8

Care and
Maintenance
TYCO Series DS-C Dry Type Concealed
Pendent Sprinklers must be maintained
and serviced in accordance with this
section.
Before closing a re protection system
main control valve for maintenance
work on the re protection system
that it controls, obtain permission to
shut down the affected re protection
systems from the proper authorities
and notify all personnel who may be
affected by this action.
(SEE DESIGN
CRITERIA
SECTION)
FACE OF
SPRINKLER
FITTING
LENGTH
EXPOSURE
DSB-2
INTENDED
FOR FREEZER
STRUCTURES
HEATED
AREA
FIGURE 7
EXPOSURE LENGTH
INSULATED
FREEZER
STRUCTURE
STRAP TIES
(ENDS ON
OPPOSING
SIDES OF
BOOT)
ADHESIVE
2-1/2" DIA.
(63,5 mm)
CLEARANCE
HOLE
DSB-2 BOOT
DS-C
DRY PENDENT
CONCEALED
SPRINKLER
FIGURE 8
MODEL DSB-2
DRY SPRINKLER BOOT
WITH DRY-TYPE SPRINKLER
SIDE
OUTLET
PLUGGED
TO WET
SYSTEM
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
DSB-2
INTENDED
FOR FREEZER
STRUCTURES
HEATED
AREA
FIGURE 5
SPRINKLER FITTING
HEATED AREA
RUN
OUTLET
PLUGGED
TO DRY
SYSTEM
DSB-2
INTENDED
FOR FREEZER
STRUCTURES
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
AREA
SUBJECT
TO
FREEZING
FIGURE 6
SPRINKLER FITTING
UNHEATED AREA
Absence of the Cover Plate Assembly
may delay sprinkler operation in a re
situation.
A Vent Hole is provided in the Bulb
Seat (Figure 1) to indicate if the Dry
Sprinkler is remaining dry. Evidence
of leakage from the Vent Hole indicate
potential leakage past the Inlet seal
and the need to remove the sprinkler
to determine the cause of leakage; for
example, an improper installation or
an ice plug. Close the re protection
system control valve and the system
drain before removing the sprinkler.
When properly installed, there is a
nominal 3/16 inch (4,8 mm) air gap
between the lip of the Cover Plate
and the ceiling, as shown in Figure 2.
This air gap is necessary for proper
operation of the sprinkler. If the ceiling
is to be repainted after the installation
of the Sprinkler, care must be exercised
to ensure that the new paint does NOT
seal off any of the air gap.
Do not pull the Cover Plate relative to
the Enclosure. Separation may result.
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 otherwise
altered after leaving the factory.
Modied 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. 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.)
If a sprinkler must be removed, do not
reinstall it or a replacement without
reinstalling the Cover Plate Assembly.
If a Cover Plate Assembly becomes
dislodged during service, replace it
immediately.
The owner is responsible for the
inspection, 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 Association
(for example, NFPA 25), in addition to
the standards of any other Authorities
Having Jurisdiction. The installing
contractor or sprinkler manufacturer
should be contacted relative to any
questions.
Automatic sprinkler systems are recom-
mended to be inspected, tested, and
maintained by a qualied Inspection
Service in accordance with local
requirements and/or national codes.
TFP515
Page 6 of 8

Ordering
Procedure
Contact your local distributor for avail-
ability. When placing an order, indicate
the full product name, including
description and Part Number (P/N).
Dry Type Sprinkler Assemblies
When ordering 5.6 K-Factor Series
DS-C Standard Coverage Dry Type
Concealed Pendent Sprinklers, specify
the following information:
• SIN
Quick Response TY3535 or
Standard Response TY3555
• Temperature Rating
• Order Length
Dry Type Sprinklers are furnished
based upon Order Length as
measured from the face of the ceiling
to the face of the sprinkler tting
(Figure 2). After the measurement is
taken, round it to the nearest 1/4 inch
increment.
• Inlet Thread Connection
1 inch NPT or ISO 7-R1
• Part Number from Table B.
Separately Ordered Cover Plate
Specify: Series RFII Concealed Cover
Plate with (temperature), (nish), and
P/N (below).
139°F (59°C) Cover Plate
for use with 155°F (68°C) Sprinkler
Grey White (RAL9002) ...... P/N 56-792-0-135
Brass ................... P/N 56-792-1-135
Pure White* (RAL9010) ...... P/N 56-792-3-135
Signal White (RAL9003) ..... P/N 56-792- 4-135
Jet Black (RAL9005)........ P/N 56-792-6-135
Chrome .................. P/N 56-792-9-135
Custom .................. P/N 56-792-X-135
165°F (74°C) Cover Plate
for use with 200°F (93°C) Sprinkler
Grey White (RAL9002) ...... P/N 56-792-0-165
Brass ................... P/N 56-792-1-165
Pure White* (RAL9010) ...... P/N 56-792-3-165
Signal White (RAL9003) ..... P/N 56-792- 4-165
Jet Black (RAL9005)........ P/N 56-792-6-165
Chrome .................. P/N 56-792-9-165
Custom .................. P/N 56-792-X-165
* Eastern Hemisphere Sales Only
Sprinkler Wrench
Specify: RFII Sprinkler Wrench,
P/N 56-000-1-075.
Sprinkler Boot
Specify: Model DSB-2 Dry Sprinkler
Boot, P/N 63-000-0-002.
This Part Number includes one Boot,
two Strap Ties, and 1/3 oz. of Adhesive
(a sufcient quantity for installing one
boot).
P/ N*60 – XXX – 1 – XXX
Note
* Use Prex “I” for ISO 7-R1 Connection
(for example, I-60-461-1-180).
** Dry-Type Sprinklers are furnished based upon “Order
Length” as measured per Figure 2, for each individual sprin-
kler where it is to be installed. After the measurement is
taken, round it to the nearest 1/4 inch increment.
SIN
46 Quick Response
(3 mm Bulb) TY3535
86 Standard Response
(5 mm Bulb) TY3555
ORDER
LENGTH**
055 5.50”
082 8.25”
180 18.00”
187 18.75”
372 37. 25”
480 48.00”
TABLE B
SERIES DS-C STANDARD COVERAGE, DRY-TYPE
CONCEALED PENDENT SPRINKLERS WITH 1 INCH NPT CONNECTION
PART NUMBER SELECTION
TEMPERATURE
RATING
1155°F (68°C)
3 200°F (93°C)
TFP515
Page 7 of 8