Viking HQR-2 Instruction manual

1. PRODUCT NAME
Viking Model HQR-2 Institutional Quick
Response Standard Coverage/Extended
Coverage Flush Pendent Sprinkler
•Sprinkler Base Part No. 10554
•SIN VK410
EscutcheonPackage: Base Part No. 10627
Available since 1999.
NOTE:The Sprinkler Identification Number (SIN) is
stamped on the sprinkler body.
2. MANUFACTURER
The Viking Corporation
210 N. Industrial Park Road
Hastings, Michigan 49058 U.S.A.
Telephone: [phone]
[phone]
Fax: [phone]
e-mail: [email protected]
3. PRODUCT DESCRIPTION
Viking Institutional Quick Response Stan-
dard Coverage/Extended Coverage
Flush Pendent Sprinklers are small, flush,
solder link and lever sprinklers made with
tamper-resistant construction. Viking in-
stitutional sprinklers have been specifi-
cally designed for use with concealed pip-
ing in institutional mental health occupan
-
cies, correctional facilities, or anywhere a
likelihood of tampering with fire sprinklers
by the occupants may exist.
The institutional sprinkler assembly
consists of the sprinkler body, lockring,
and a 3-1/4" (82,6 mm) diameter thread-
on escutcheon plate. The sprinkler and
escutcheon plate have a polished
chrome finish.
Tests simulating conditions of misuse
demonstrate the fusible element assembly
consistently breaks away when connected
to a 30 lb. weight dropped six inches†.
† For a copy of the break-a-way test de
-
scribed, contact The Viking Corporation.
The Viking Corporation disclaims any respon-
sibility for damages or injury (including death)
caused by the operation or inoperation of
sprinklers arising out of the misuse of or tam-
pering with Viking®brand sprinklers including,
without limitation, any personal injury or death
arising out of or caused by the manipulation
of, dismantling of, or attempted use of the
sprinkler or any component as an instrument
unrelated to its intended use.
4. TECHNICAL DATA
LISTINGS: cULus Listed as Quick Re-
sponse Flush Pendent Sprinkler for
standard areas of coverage in Light or
Ordinary Hazard occupancies, or ex
-
tendedareas of coverage up to 16' x 16'
in Light Hazard occupancies only (see
the approval chart on page 126 d).
Rated to 175 psi (1 207 kPa) water work-
ing pressure.
Spring: U.S.A. Patent No. 4,570,720
Thread Size: Nominal ½" (15 mm) NPT
Nominal K-Factor: 5.6 U.S. (8,1 metric, for
usewhenpressure is measured in kPa).
Overall Length: 2-9/32" (57,9 mm)
AVAILABLE FINISH
Polished Chrome
SPRINKLER ASSEMBLY MATERIALS
SprinklerBody:BrassCasting UNS-C84400
BodyCap:Stainless Steel UNS-S30400
or UNS-S30500
Deflector: Copper UNS-C19500
Deflector Pins: Stainless Steel
UNS-S30300
Button: UNS-C23000 H55-H80
Compression Screw: Brass UNS-C36000
Fusible Link Assembly: Beryllium Nickel
and Eutectic Solder
Fusible Link Levers: Stainless Steel
UNS-S31600
LeverBar:CopperAlloyUNS-C72500
Belleville Spring Sealing Assembly:
Nickel Alloy, coated on both sides
with Teflon Tape
ESCUTCHEONPACKAGEMATERIALS
Escutcheon Plate: Brass UNS-C26000
Lockring: Stainless Steel UNS-S41000
ORDERING INSTRUCTIONS
To order the Viking Institutional Quick
Response Flush Pendent Sprinkler, re
-
fer to the following:
Sprinkler Base Part No. 10554 (specify
sprinkler temperature rating).
Escutcheon Package Part No. 10627
(includes lockring and escutcheon
plate).
Institutional Escutcheon Installation
Wrench Part No. 10551W/B: Steel
UNS-G10100, Availablesince1999.
Flush/Concealed Sprinkler Wrenches*
A. Heavy Duty Part No. 08336W/B
Available since 1983, or
B. Light Duty Part No. 10366W/B**
Available since 1998.
* Requires a ½" ratchet (not available
from Viking).
** Ideal for sprinkler cabinets.
ACCESSORIES
A. Sprinkler Cabinet: Part No. 01731A
Capacity: six (6) sprinklers
Available since 1971.
B.Retaining Flange Assembly: Part No.
10599, includes:
•Retaining Flange Casting: AISI
C1045 Low Carbon Steel
Thickness: 13/32” (10,3 mm)
Outside Diameter: 2-3/8” (60 mm)
Available since 1999.
•Socket Set Screw††: Steel Alloy
††Requires a 1/8" hex wrench for installation
and removal (not available from Viking).
C.SpannerWrench Part No. 10729***
(for removal of institutional
escutcheon plate), 2-1/2" C-C,
Available since 1999.
***For removal of the Institutional Quick Re
-
sponse Flush Pendent Sprinklers, special
tools are needed (not all the required tools
are available from Viking). Refer to section
9. MAINTENANCE, paragraph D. on page
126 d.
5. AVAILABILITY & SERVICE
Viking products are available through a
network of domestic, Canadian, and
international distributors. See the Viking
Corp. Web site for your closest distribu-
tor or contact The Viking Corporation.
Viking technical data may be found on
The Viking Corporation’s Web site at
http://www.vikingcorp.com.
The Web site may include a more recent
edition of this technical data page.
6. GUARANTEES & DISCLAIMER
For details of warranty, refer to Viking’s
current list price schedule or contact
The Viking Corporation directly.
THE VIKING CORPORATION DISCLAIMS
ANY RESPONSIBILITY FOR DAMAGES
OR INJURY (INCLUDING DEATH) CAUSED
BY THE OPERATION OR INOPERATION
OF SPRINKLERS ARISING OUT OF THE
MISUSE OF OR TAMPERING WITH
VIKING®BRAND SPRINKLERS IN-
CLUDING, WITHOUT LIMITATION, ANY
PERSONAL INJURY OR DEATH ARISING
OUT OF OR CAUSED BY THE MANIPULA
-
TION OF, DISMANTLING OF, OR AT
-
TEMPTED USE OF THE SPRINKLER OR
ANY COMPONENT AS AN INSTRUMENT
UNRELATED TO ITS INTENDED USE.
December 20, 2002 Sprinkler 126 a
Form No. F_100998
Note: Units of measure in parentheses may be approximations.
Viking Institutional Quick Response
Flush Pendent Sprinkler
SprinklerBody,Lockring,and EscutcheonPlate
(Refer to Installation Tip on Page 126 c.)
TECHNICAL DATA
INSTITUTIONAL QUICK RESPONSE
STANDARD COVERAGE/
EXTENDED COVERAGE FLUSH
PENDENT SPRINKLER
Retaining Flange
Figure 1
Replaces page 126 a-d, dated August 8, 2002
(updated the sprinkler materials list).
OBSOLETE

7. OPERATION AND DESIGN
REQUIREMENTS
The InstitutionalPendentSprinkler is UL
and C-UL Listed as a Quick Response
Flush Pendent Sprinkler for standard ar
-
eas of coverage in Light Hazard or Ordi-
nary hazard occupancies with minimum
flow and pressure requirements as
specified in current NFPA Standards.
This sprinkler is also UL and C-UL
Listed as a Quick Response Extended
Coverage Flush Pendent Sprinkler de-
signed to meet Light Hazard density re-
quirements for extended areas of cover-
age up to 16' x 16' when minimum flow
and pressure are provided as specified
in current NFPA Standards. The sprin-
kler must be installed in the pendent po-
sition in fixed fire protection systems
(wet, dry, deluge, or preaction systems).
The special escutcheon plate on the Insti
-
tutional Quick Response Flush Pendent
Sprinkler assembly is the only ceiling ring
that may be used with these institutional
sprinklers, and all of these sprinklers
must be installed with this escutcheon
plate. Removal of the thread-on escutch
-
eon plate is prevented by the lockring.
The sprinkler pipe above the ceiling leading
to the sprinkler must be secured to prevent
any movement of the sprinkler. One
method of anchoring the pipe above the
ceiling is to use the retaining flange and
screw assembly that are available from Vi-
king. The flange slides over the sprinkler
drop nipple prior to threading the nipple into
the branch line tee (see Figure 3A).
The sprinkler is recessed into the
mounting surface, flush to the ceiling,
with only a portion of the fusible link as-
sembly exposed beneath the ceiling.
The concealed deflector is held inside
the sprinkler body until the eutectic
metal solder link is fused. When the
sprinkler fuses, the deflector extends to
discharge and distribute water.
The multi-piece design allows the installa
-
tion and testing of the institutional sprin-
klers prior to installation of the ceiling.
8. INSTALLATION
(Refer to Figures 1, 2, and 3.)
WARNING: Viking sprinklers are manu-
factured and tested to meet the rigid re-
quirements of the approving agency. The
sprinklers are designed to be installed in
accordance with recognized installation
standards. Deviation from the standards
or any alteration to the sprinkler after it
leaves the factory including, but not lim-
ited to: painting, plating, coating, or modi
-
fication, may render the sprinkler inoper-
ative and will automatically nullify the ap
-
proval and any guarantee made by The
Viking Corporation.
A. Sprinklers are to be installed in accor-
dance with the latest published stan
-
dards of the National Fire Protection
Association, Factory Mutual, Loss
Prevention Council, Assemblee
Pleniere, Verband der
Sachversicherer or other similar orga
-
nizations, and also with the provisions
of governmental codes, ordinances,
and standards whenever applicable.
Flush sprinklers are decorative sprin-
klers and may be considered special
purpose. As such, some Authorities
may limit the use depending on the oc-
cupancy classification. Refer to the
Authority Having Jurisdiction prior to
installation.
B. Sprinklers must be handled with care.
They must be stored in a cool, dry
place in their original shipping con-
tainer. Never install sprinklers that
have been dropped, damaged in any
way, or exposed to temperatures in
excess of maximum ambient temper-
ature allowed. Such sprinklers
should be destroyed immediately.
C. Viking Institutional Quick Response
Flush Pendent Sprinklers are not in-
tended for use in corrosive environ-
ments. Use only sprinklers listed for
corrosive environments when sub
-
ject to corrosive atmospheres.
D. Use care when locating sprinklers
near fixtures that can generate heat.
Do not install sprinklers where they
will be exposed to temperatures that
exceed the maximum recommended
ambient temperature for the temper-
ature rating used.
E. Adequate heat must be provided
when the Institutional Quick Re
-
sponse Flush Pendent Sprinkler is
installed on wet-pipe systems.
F. The sprinklers must be installed after
the piping is in place to prevent me
-
chanical damage. Before installing,
be sure to have the appropriate
sprinkler model and style, with the
correct orifice size, temperature rat-
ing, and response characteristics. In
-
stall the sprinklers according to the
following sequence:
1. Install all piping and cut the
sprinkler drop nipple so that the ½"
(15 mm) NPT outlet of the reducing
coupling is at the desired elevation
and centered in a 2-1/4" (57,2 mm)
diameter opening in the ceiling (due
to lockring).
Note: If the retaining flange assembly
is to be used, slide the flange over the
sprinkler drop nipple prior to thread-
ing the nipple into the branch line tee
as shown in Figure 3A.
2. The internal diameter of the special
Flush/Concealed Sprinkler Wrench
is designed for use with the sprinkler
contained in the protective plastic
shell. With the sprinkler in the shell,
apply a small amount of pipe-joint
compound or tape to the external
threads of the sprinkler only, taking
care not to allow a build-up of com
-
pound in the sprinkler inlet.
3.Refer to Figure 3B and use only the
special Flush/Concealed Sprinkler
Wrench, which is designed for in-
stalling Viking Institutional Quick
Response Flush Pendent Sprin-
klers. With the sprinkler in the plas
-
tic protective shell, place the unit
into the wrench. DO NOT use the
fusible link to start or thread the
sprinkler into a fitting. Turn the unit
clockwise to thread the sprinkler
into the coupling, taking care not to
over-tighten or damage the sprin-
kler operating parts.
G. After installation, the entire system
must be tested in accordance with
recognized installation standards. The
test is applied after sprinkler installation
Sprinkler 126 b
Figure 2
TECHNICAL DATA
INSTITUTIONAL QUICK RESPONSE
STANDARD COVERAGE/
EXTENDED COVERAGE FLUSH
PENDENT SPRINKLER
NOTE: Upon sprinkler activation, the deflector descends
approximately 1/4" (6,4 mm) below the sprinkler body.
December20,2002
OBSOLETE

to ensure that no damage has occurred
to the sprinkler during shipping and in-
stallation, and to make sure the unit has
been properly tightened. If a thread leak
occurs, normally the unit must be re-
moved, new pipe-joint compound or
tape applied, and then reinstalled. This
is due to the fact that when the joint seal
leaks, the sealing compound or tape is
washed out of the joint.
H. After testing, repairing all leaks, and
installing and painting the ceiling, re-
move the plasticprotective shell from
the sprinkler.
INSTALLATION TIP: Do NOT install
the lockring onto the sprinkler until after
the sprinkler nipple has been cut back to
ensurethesprinkler is at the desiredele-
vation in relation to the face of the ceil
-
ing. The lockring will prove difficult to re-
move from the sprinkler once it has been
installed above the plane of the ceiling.
Check final installation by temporarily
installing the escutcheon plate onto the
sprinkler without the lockring, using the
Institutional Escutcheon Installation
Wrench. If necessary, re-cut the sprin-
kler nipple as required.
Once satisfied with sprinkler level com-
pared to the surface of the ceiling, install
lockring and escutcheon plate following
the steps below. The escutcheon plate
cannot be removed after it has been in-
stalled with the lockring, so do not install
the escutcheon plate with the lockring
until after the system has been tested.
I. As shown in Figures 3C and 3D, fit the
lockring over the open end of the pro-
tective sprinkler shell and use the shell
to gently press the lockring over the
threads of the sprinkler. The ring must
rest against the two wrench ears of the
sprinkler body with the four arms of the
lockring pointing outward.
J. REMOVE THE PLASTIC PROTEC
-
TIVE SHELL from the sprinkler.
(Recommendation: retain a protective
shell in the spare sprinkler cabinet.)
K. As depicted in Figure 3E, use the In-
stitutional Escutcheon Installation
Wrench to screw on the escutcheon
plate clockwise. The face of the es-
cutcheon plate is equipped with four
indentations to complement the de-
sign of the Institutional Escutcheon
Installation Wrench and facilitate in-
stallation of the escutcheon plate.
As the escutcheon plate is threaded
onto the sprinkler body, the four arms of
the lockring must fully engage with the
radial grooves on the inside of the es
-
cutcheon plate. Continue to thread the
escutcheon plate onto the sprinkler
body until the plate’s flange fits tightly
against the surface of the ceiling. Then,
proceed to turn the escutcheon plate
another ½ turn clockwise to ensure that
it is secured to the ceiling.
The arms of the lockring are angled and
designed to wedge into the coined ra
-
dial grooves on the inside face of the
escutcheon plate to keep the escutch-
eon plate from being unscrewed. Thus,
an attempt to remove the escutcheon
plate after installation is prevented. DO
NOT MODIFY THE UNIT.
L. The retaining flange, located behind the
finished ceiling, must fit snug against
the inner surface of the ceiling to pre-
vent vertical movement of the assem-
bly. Use a 1/8" hex wrench to tighten
the retaining flange screw and secure
the assembly into place to prevent it
from being pulled through the ceiling.
M. DISASSEMBLY: Refer to section 9.
MAINTENANCE, paragraph D. and
follow all warnings and instructions.
9. MAINTENANCE
(Refer to Figures 1, 2, and 3.)
NOTICE: The owner is responsible for
maintaining the fire protection system and
devices in proper operating condition. For
minimum maintenance and inspection re
-
quirements, refer to the appropriate Na-
tional Fire Protection Association’s pam-
phlet that describes care and mainte-
nance of sprinkler systems. In addition,
the Authority Having Jurisdiction may
have additional maintenance require
-
ments that must be followed.
A. The sprinklers must be inspected on
a regular basis for corrosion, me-
chanical damage, obstructions,
paint, etc. The frequency of inspec-
tions may vary due to corrosive at
-
mospheres, water supplies, and ac-
tivity around the device.
B. Sprinklers that have been painted or
mechanically damaged must be re-
placed immediately. Sprinklers
showing signs of corrosion shall be
tested and/or replaced immediately
as required. Installation standards
require sprinklers to be tested and, if
Sprinkler126c
A
BC
D
E
INSTALLATION TIP:
Donotinstall the lockring onto the sprinkler until after the sprinklernipple has been cutback toensurethe sprinkler is at the desiredelevation in re-
lationtothe face oftheceiling. The lockring will prove difficult to remove from the sprinkler once it has been installed above theplaneof the ceiling.
Check final installation by temporarily installing the escutcheon plate onto the sprinkler without the lockring, using the Institutional Escutcheon In
-
stallation Wrench. If necessary, re-cut the sprinkler drop nipple as required.
Once satisfied with sprinkler level compared to the surface of the ceiling, install lockring and escutcheon plate following steps I though K below.
The escutcheon plate cannot be removed after it has been installed with the lockring, so do not install the escutcheon plate with the lockring until
after the system has been tested. Figure 3: Sequence of Installation
TECHNICAL DATA
INSTITUTIONAL QUICK RESPONSE
STANDARD COVERAGE/
EXTENDED COVERAGE FLUSH
PENDENT SPRINKLER
December 20, 2002
OBSOLETE

necessary,replaced after a specified
term of service. Refer to the installa-
tion standards and the Authority Hav-
ing Jurisdiction for the specified pe-
riod of time after which testingand/or
replacement is required. Sprinklers
that have operated cannot be reas
-
sembled or reused, but must be re-
placed. When replacing sprinklers,
use only new sprinklers.
C. The sprinkler discharge pattern is
critical for proper fire protection.
Nothing should be hung from the
sprinkler, attached to it, or otherwise
obstruct the discharge pattern. All
obstructions must be immediately re-
moved or, if necessary, additional
sprinklers installed.
D. When replacingexisting sprinklers,the
systemmustberemoved from service.
Refer to the appropriate system de
-
scription and/or valve instructions.
Prior to removing the system from ser-
vice, notify all AHJs. Consideration
should be given to employment of a
fire patrol in the affected area.
DISASSEMBLY: There are two meth
-
ods of sprinkler disassembly. In Method
1, the escutcheon plate and lockring
areremovedfirst, and then the remain-
ing sprinkler components can be re-
moved without being destroyed. The
second method of disassemblyresults
in complete destruction of the unit.
Disassembly Method 1:
1. Remove the system from service,
drain all water, and relieve all
pressure on the piping.
2. Use a drill (not available from Vi
-
king) sized appropriately for use
with a spanner wrench (see step
3) to make two holes through two
opposite indentations on the face
of the escutcheon plate.
3. Use a 2-1/2" C-C spanner wrench
(Viking P/N 10729) to unthread
the escutcheon plate by turning it
counterclockwise. Make sure that
the sprinkler body does not turn or
loosen.
4. Remove the lockring from the
sprinkler body.
5. Place a protective sprinkler shell
(from the spare sprinkler cabinet)
overthesprinklertoberemoved.
6. With the protective shell over the
sprinkler, place the special Flush/
Concealed Sprinkler Wrench over
the unit and turn it counterclockwise
to carefully unthread the sprinkler
body from the reducing coupling.
7.Install the new unit using the Flush/
Concealed Sprinkler Wrench.
Care must be taken to ensure that
the replacement sprinkler is the
proper model and style, with the
appropriate orifice size, tempera-
ture rating, and response charac
-
teristics. A fully stocked spare
sprinkler cabinet should be pro-
vided for this purpose. (Stock of
spare lockrings and escutcheon
plates should be available in the
spare sprinkler cabinet in addition
to the spare sprinkler heads.)
8. Place the system back in service
and secure all valves. Check for
and repair all leaks.
Disassembly Method 2:
1. Remove the system from service,
drain all water, and relieve all
pressure on the piping.
2. Disassemble and remove the fus-
ible element, and bend the deflec-
tor and sealing assembly to ex-
pose the waterway of the sprin
-
kler.
3. Insert an easy-out screw extractor
(Trade No. 6) into the waterway.
Turn the easy-out counterclock-
wise with a wrench to remove the
sprinkler assembly from the re-
ducing coupling.
4. Install the new unit using the
Flush/Concealed Sprinkler Wrench.
Care must be taken to ensure that
the replacement sprinkler is the
proper model and style, with the
appropriate orifice size, tempera
-
ture rating, and response charac-
teristics. A fully stocked spare
sprinkler cabinet should be pro-
vided for this purpose. (Stock of
spare lockrings and escutcheon
plates should be available in the
spare sprinkler cabinet in addition
to the spare sprinkler heads.)
5. Place the system back in service
and secure all valves. Check for
and repair all leaks.
E. Sprinkler systems that have been
subject to a fire must be returned to
service as soon as possible. The en
-
tire system must be inspected for
damage and repaired or replaced as
necessary. Sprinklers that have
been exposed to corrosive products
of combustion or high ambient tem
-
peratures, but have not operated,
should be replaced. Refer to the Au
-
thority Having Jurisdiction for mini-
mum replacement requirements.
Sprinkler 126 d
Form No. F_100998
NOTE: This method of
disassembly results in damage to
the escutcheon plate and lockring,
and they cannot be reused.
NOTE: This method of disassembly
results in complete destruction
of the unit. None of the sprinkler
components may be reused.
TECHNICAL DATA
Sprinkler Temperature
Classification Nominal Temperature Rating (Fusing Point) Maximum Ambient Ceiling Temperature1,2
Ordinary 165 °F (74 °C) 100 °F (38 °C)
Intermediate 220 °F (104 °C) 150 °F (66 °C)
Approval Chart
Institutional QR Flush Pendent Sprinkler
Thread Size Orifice
Size Nominal K-Factor Overall Length Sprinkler Base Part No.3SIN
NPT BSP U.S.8metric4Inches mm
½" 15 mm Standard 5.6 8,1 2-9/32 57,9 10554 VK410
Standard Coverage Applications
Refer to minimum flow and pressure requirements
as specified in current NFPA Standards.
Listings5,6
cULus8FM NYC LPCB
A1 –B19–
Extended Coverage Applications
For Light Hazard Occupancies Only
Maximum Area of Coverage:
16' Wide x 16' Throw (4,9 m x 4,9 m)
Minimum Water Supply Requirements:
26 gpm @ 21.6 psi (98,4 L/min @ 148,6 kPa)
Listings5,7
cULus8FM NYC LPCB
A1 – – –
Temperature Ratings
A - 165 °F (74 °C) and 220 °F (104 °C)
B - 165 °F (74 °C) only
Available Finish
1 - Polished Chrome
1Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and
other requirements of the AHJ. Refer to specific installation standards.
2 The temperature rating is stamped on the sprinkler.
3Base part number is shown. For complete part number, see Viking's current price list.
4Metric K-Factor shown is for use when pressure is measured in kPa. When pressure is mea-
sured in BAR, multiply the metric K-Factor shown by 10.0.
5This table shows the listings and approvals available at the time of printing. Other approvals
may be in process. Check with the manufacturer for any additional approvals.
6cULus Listed as a Quick Response Flush Pendent Sprinkler for standard areas of coverage.
7cULus Listed as a Quick Response Extended Coverage Flush Pendent Sprinkler for Light
Hazard occupancies only.
8Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
9Accepted for use, City of New York Department of Buildings, MEA 89-92-E, Vol 16.
INSTITUTIONAL QUICK RESPONSE
STANDARD COVERAGE/
EXTENDED COVERAGE FLUSH
PENDENT SPRINKLER
Temperature Rating
Available Finish KEY
A1
Replaces page 126 a-d, dated August 8, 2002
(updated the sprinkler materials list).
December20,2002
OBSOLETE