Viking HQR-2 User manual

1. PRODUCT NAME
Viking Model HQR-2 Institutional
Quick Response Flush Pendent
Sprinkler Base Part No. 10554
Available since 1999.
Escutcheon Package
Base Part No. 10627
Available since 1999.
2. MANUFACTURER
The Viking Corporation
210 N. Industrial Park Road
Hastings, Michigan 49058 U.S.A.
Telephone: [phone]
[phone]
Fax: [phone]
e-mail: [e-mail]
3. PRODUCT DESCRIPTION
The Viking Model HQR-2 Institutional
Quick Response Flush Pendent Sprin-
klerisasmall,flush,solderlinkandlever
spray sprinkler made with tamper-resis-
tantconstruction.Thisinstitutionalsprin-
kler has been specifically designed for
usewithconcealedpipingininstitutional
mental health occupancies, correctional
facilities, or anywhere a likelihood of
tampering with fire sprinklers by the oc-
cupants may exist.
Theinstitutionalsprinklerassemblycon-
sists of the sprinkler body, lockring, and
a 3-1/4" (82,6 mm) diameter thread-on
escutcheon plate. The sprinkler and es-
cutcheon plate have a chrome finish.
Tests simulating conditions of misuse
demonstratethefusibleelementassem-
bly consistently breaks away when con-
nected to a 30 lb. weight dropped six
inches*.
* For a copy of the break-a-way test de-
scribed, contact The Viking Corpora-
tion.
The Viking Corporation disclaims any re-
sponsibility for damages orinjury(including
death) caused by theoperation orinopera-
tion of sprinklers arising out of the misuse
of or tampering with Viking®brand sprin-
klers including, without limitation, any per-
sonal injury or death arising out of or
caused by the manipulation of, dismantling
of, or attempted useof the sprinkler or any
component as an instrument unrelated to
its intended use.
4. TECHNICAL DATA
LISTINGS: UL and C-UL Listed as
Quick Response Flush Pendent
Sprinkler (see approvalchartonthis
page).
Ratedto175psi(1207kPa)waterwork-
ing pressure.
Spring: U.S.A. Patent No. 4,570,720
Thread Size: Nominal 1/2"(15 mm)NPT
Orifice Size: Nominal 1/2" (15 mm)
K-factor: Nominal 5.6 U.S. (8,1 metric*)
*Metric K-factor shown is for use when
pressure is measured in kPa. When
pressure is measured in BAR, multiply
the metric K-factor shown by 10.0.
FINISH
Sprinkler: Polished Chrome
Escutcheon Plate: Chrome
SPRINKLER ASSEMBLY MATERIALS
Sprinkler Body: Brass Casting
UNS-C84400
Deflector: Copper UNS-C19500
Seal: Teflon®Tape
Spring: Nickel Alloy
ESCUTCHEON PACKAGE MATERIALS
Escutcheon Plate: Brass UNS-C26000
Lockring: Stainless Steel UNS-S41000
ORDERING INSTRUCTIONS
To order the Viking Model HQR-2 Insti-
tutional Quick Response Flush Pendent
Sprinkler, refer 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
Available since 1999.
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 1/2" ratchet (not available
from Viking).
** Ideal for sprinkler cabinets.
ACCESSORIES
Sprinkler Cabinet: Part No. 01731A
Retaining Flange Assembly: Part No.
Temperature
Finish
March 18, 1999 Sprinkler60a
Form No. F_100998
APPROVAL CHART
MODEL HQR-2 INSTITUTIONAL QUICK
RESPONSE FLUSH PENDENT SPRINKLER
Thread Nominal Ordering Nominal Overall
Listings3, 4, 5
Size Orifice Information K-factor2 Length
NPT BSP Inches mm Base P/N1 US Metric Inches mm UL C-UL FM NYC LPCB
1/2" 15 mm 1/2" 15 10554 5.6 8,1 -- -- A1 A1 -- -- --
FOOTNOTES
1Base part number shown. For complete part number, see Price List.
2Metric K-factor shown is for use when pressure is measured in kPa. When pressure is measured in BAR,
multiply the metric K-factor shown by 10.0.
3 This chart shows the listings and approvals available at the time of printing. Other approvals are in pro-
cess. Check with the manufacturer for any additional approvals.
4The Model HQR-2 Institutional Quick Response Flush Pendent Sprinkler is UL and C-UL Listed as a
Quick Response Flush Pendent Sprinkler.
5Available temperatures are 165 °F (74 °C) and 220 °F (104 °C), however, only the 165 °F (74 °C) tempera-
ture is UL and C-UL Listed at the time of this writing.
AVAILABLE TEMPERATURES
A - 165 °F (74 °C)
B - 220 °F (104 °C)5
LISTED FINISH
1 - Chrome
A1
APPROVAL
KEY
TECHNICAL DATA
MODEL HQR-2 INSTITUTIONAL
QUICK RESPONSE FLUSH
PENDENT SPRINKLER
Note: Units of measure in parentheses may be approximations.
Figure 1
Model HQR-2 Institutional Quick Response
Flush Pendent Sprinkler
Model HQR-2 Sprinkler Body,
Lockring, and Escutcheon Plate
(RefertoInstallationTiponPage60d.)
Retaining Flange
Replaces page 60 a-d, dated February 25, 1999
(added disclaimer and installation tip).
OBSOLETE

10599, includes:
A. Retaining Flange Casting: Brass
UNS-C84400
Available since 1999.
B. Socket Set Screw*: Steel Alloy
* Requires a 1/8" hex wrench for instal-
lation and removal (not available from
Viking).
For removal of the Model HQR-2 Institu-
tional Quick Response Flush Pendent
Sprinklers, special tools are required
(notavailablefromViking). Refertosec-
tion 9. MAINTENANCE, paragraph D.
on page 60 d.
5. AVAILABILITY AND SERVICE
Viking sprinklers are available through a
network of domestic, Canadian, and in-
ternational distributors. See the Yellow
Pages of the telephone directory for a
localdistributor(listedunder“Sprinklers-
Automatic-Fire”) or contact Viking.
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
currentlistpricescheduleorcontactThe
Viking Corporation directly.
THE VIKING CORPORATION DIS-
CLAIMS ANY RESPONSIBILITY FOR
DAMAGES OR INJURY (INCLUDING
DEATH) CAUSED BY THE OPERA-
TION OR INOPERATION OF SPRIN-
KLERS ARISING OUT OF THE MIS-
USE OF OR TAMPERING WITH VI-
KING®BRANDSPRINKLERSINCLUD-
ING, WITHOUT LIMITATION, ANY
PERSONALINJURYORDEATH ARIS-
ING OUT OF OR CAUSED BY THE
MANIPULATION OF, DISMANTLING
OF, OR ATTEMPTED USE OF THE
SPRINKLER OR ANY COMPONENT
ASANINSTRUMENTUNRELATEDTO
ITS INTENDED USE.
7. OPERATION AND DESIGN
REQUIREMENTS
TheModelHQR-2isULandC-ULListed
asa QuickResponseFlushSprinklerfor
standard areas of coverage with mini-
mumflow andpressurerequirements as
specified in current NFPA Standards.
The sprinkler must be installed in the
pendent position in fixed fire protection
systems (wet, dry, deluge, or preac-
tion systems).
The special escutcheon plate on the
Model HQR-2 Institutional Quick Re-
sponseFlushPendentSprinklerassem-
bly is the only ceiling ring that may be
used with these institutional sprinklers,
and all of these sprinklers must be in-
stalled with this escutcheon plate. Re-
movalofthethread-onescutcheonplate
is prevented by the lockring.
The sprinkler pipe above the ceiling
leading to the sprinkler must be se-
curedtopreventanymovementofthe
sprinkler. One methodofanchoringthe
pipe above the ceiling is to use the re-
taining flange and screw assembly that
are available from Viking. The flange
slidesoverthesprinklerdropnippleprior
to threading the nipple into the branch
line tee (see Figure 3A).
Thesprinklerisrecessedintothemount-
ing surface, flush to the ceiling, with only
a portion of the fusible link assembly
exposed beneath the ceiling.
The concealed deflector is held inside
thesprinklerbodyuntiltheeutecticmetal
solder link is fused. When the sprinkler
fuses,thedeflectorextendstodischarge
and distribute water.
The multi-piece design allows the instal-
lation and testing of the institutional
sprinklers prior to the 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
requirements of the approving agency.
The sprinklers are designed to be in-
stalled in accordance with recognized
installation standards. Deviation from
the standards or any alteration to the
sprinkler after it leaves the factory in-
cluding, but not limited to: painting, plat-
ing,coating,ormodification,mayrender
the sprinkler inoperative and will auto-
matically nullify the approval and any
guaranteemadebyTheVikingCorpora-
tion.
A. Sprinklers are to be installed in ac-
cordance with the latest published
standardsoftheNationalFireProtec-
tion Association, Factory Mutual,
LossPreventionCouncil,Assemblee
Pleniere, Verband der Sachver-
sicherer or other similar organiza-
tions, and also with the provisions of
governmental codes, ordinances,
and standards whenever applicable.
Flushsprinklers aredecorativesprin-
klers and may be considered special
purpose. As such, some Authorities
may limit the use depending on the
occupancyclassification.Refertothe
Authority Having Jurisdiction prior to
installation.
B. Sprinklers must be handled withcare.
They must be stored in a cool, dry
place in their original shipping con-
tainer. Never install sprinklers that
have beendropped,damaged in any
way, or have been exposed to tem-
peratures in excess ofmaximumam-
bient temperature allowed. Such
sprinklers should be destroyed im-
mediately.
C. Viking Model HQR-2 Sprinklers are
not intended for use in corrosive en-
vironments.Useonlysprinklerslisted
for corrosive environments when
subject 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
T
TECHNICAL DATA
March 18, 1999
Sprinkler 60 b
MODEL HQR-2 INSTITUTIONAL
QUICK RESPONSE FLUSH
PENDENT SPRINKLER
Figure 2
OBSOLETE

ambient temperature for the tem-
perature rating used.
E. Adequate heat must be provided
when the Model HQR-2 Institutional
Quick Response Flush Pendent
Sprinkler is installed onwet-pipe sys-
tems.
F. The sprinklers must be installed after
the piping is in place to prevent me-
chanical damage. Before installing,
besuretohavetheappropriatesprin-
kler model and style, with the correct
orifice size, temperature rating, and
response characteristics. Install the
sprinklers according to the following
sequence:
1. Install all piping and cut the sprin-
klerdropnipplesothatthe1/2"(15
mm) NPT outlet of the reducing
couplingisatthedesiredelevation
andcenteredina2-1/4"(57,2mm)
diameter opening in the ceiling.
Note: If the retaining flange as-
sembly is to be used, slide the
flange over the sprinkler drop nip-
ple prior to threading the nipple
into the branch line tee as shown
in Figure 3A.
2.Theinternaldiameterof thespecial
Flush/Concealed Sprinkler Wrench
is designed for use with the sprin-
kler 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 compound in the sprin-
kler inlet.
3. Refer to Figure 3B and useonly the
special Flush/Concealed Sprin-
kler Wrench, which is designed for
installing Viking Model HQR-2 In-
stitutional Quick Response Flush
Pendent Sprinklers. With the
sprinkler in the plastic 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 clock-
wisetothreadthesprinklerintothe
coupling, taking care not to over-
tighten or damage the sprinkler
operating parts.
G. After installation, the entire system
must be tested in accordance with
the recognized installation stand-
ards. The test is applied after sprin-
kler installation to ensure that no
damagehasoccurredtothesprinkler
during shipping and installation, and
to make sure the unit has beenprop-
erlytightened.Ifathreadleakoccurs,
normally the unit must be removed,
new pipe-joint compound or tape ap-
plied, and then reinstalled. This is
duetothefactthatwhenthejointseal
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-
movetheplastic protectiveshell from
the sprinkler.
INSTALLATION TIP: Donot install the
lockring onto the sprinkler until after
the sprinkler nipple has been cut
back to ensure the sprinkler is at the
desired elevation in relation to the
face of the ceiling. The lockring will
prove difficult to remove from the
sprinkler once it has been installed
above the plane of the ceiling. Check
final installation by temporarily in-
stallingtheescutcheonplateontothe
sprinkler without the lockring, using
the Institutional Escutcheon Installa-
tion Wrench. If necessary, re-cut the
sprinkler nipple as required.
Once satisfied with sprinkler level
compared to the surface of the ceil-
ing, install lockring and escutcheon
plate following the steps below. The
escutcheon plate cannot be removed
after it has been installed with the
lockring, so do not install the es-
cutcheon plate with the lockring until
after the system has been tested.
I. As shownin Figures 3Cand 3D,fitthe
lockringovertheopenendofthepro-
tective sprinkler shell and use the
shell to gently press the lockringover
the threads of the sprinkler. The ring
must rest against the two wrench
ears of the sprinkler body with the
fourarms of the lockring pointing out-
ward.
J. REMOVE THE PLASTIC PROTEC-
TIVESHELLfromthesprinkler.(Rec-
ommendation: retain a protective
shell in the spare sprinkler cabinet.)
March 18, 1999 Sprinkler 60 c
TECHNICAL DATA MODEL HQR-2 INSTITUTIONAL
QUICK RESPONSE FLUSH
PENDENT SPRINKLER
A
BC
D
E
INSTALLATION TIP:
Do not install the lockring onto the sprinkler until after the sprinkler nipple has been cut back to ensure the sprinkler is at the desired elevation
in relation to the face of the ceiling. The lockring will prove difficult to remove 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 sprinkler drop nipple as required.
Once satisfied with sprinkler level compared to the surface of the ceiling, install lockring and escutcheon plate following stepsI 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
OBSOLETE

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
ontothesprinklerbody,thefourarms
of the lockring must fully engage with
theradialgroovesontheinsideofthe
escutcheon plate. Continue to thread
the escutcheon plate onto the sprin-
kler body until the plate’s flange fits
tightly againstthesurfaceoftheceil-
ing. Then, proceed to turn the es-
cutcheon plate another 1/2 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 radial grooves on the inside
face of the escutcheon plate to keep
the escutcheon plate from being un-
screwed. Thus, anattempttoremove
theescutcheonplateafterinstallation
is prevented. DONOT MODIFY THE
UNIT.
L. The retaining flange, located behind
the finished ceiling, must fit snug
against the inner surface of the ceil-
ing to prevent vertical movement of
theassembly.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 condi-
tion. For minimum maintenance and in-
spection requirements, refer to the ap-
propriate National Fire Protection Asso-
ciation’s pamphlet that describes care
and maintenance of sprinkler systems.
In addition, the Authority Having Juris-
diction may have additional mainte-
nance requirements that must be fol-
lowed.
A. The sprinklers must be inspected on
a regular basis for corrosion, me-
chanical damage, obstructions,
paint, etc. The frequency of the in-
spections may vary due to corrosive
atmospheres, water supplies, and
activity 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. Quick response sprin-
klers that are 20 years old shall be
tested and/or replaced as required.
Sprinklers that have operated cannot
be reassembled or reused, but must
be replaced. When replacing sprin-
klers, 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 other-
wise obstruct the discharge pat-
tern. All obstructions must be imme-
diately removed or, if necessary, ad-
ditional sprinklers installed.
D. When replacing existing sprinklers,
the system must be removed from
service. Refer to the appropriate sys-
tem description and/or valve instruc-
tions. Prior to removing the system
from service, notify all Authorities
Having Jurisdiction. Consideration
should be given to employment of a
fire patrol in the affected area.
There are two methods of sprinkler
disassembly. In Method 1, the es-
cutcheon plate and lockring are re-
moved first, and then the remaining
sprinkler components can be re-
moved without being destroyed.
Note, however, that this first method
of disassembly results in damage to
the escutcheon plate and lockring,
and so they cannot be reused.
Using Disassembly Method 1:
1. Remove the system from service,
drain all water, and relieve all
pressure on the piping.
2. Use a 1/4" drill (not available from
Viking)to maketwoholesthrough
two opposite indentations on the
face of the escutcheon plate.
3.Useanadjustablespannerwrench
(not available from Viking) to un-
thread 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)
over the sprinkler to be removed.
6. With the protective shell over the
sprinkler, place the special Flush/
Concealed Sprinkler Wrench over
the unit and turn it counterclock-
wise to carefully unthread the
sprinkler body from the reducing
coupling.
7. Installthe new unit using the Flush /
Concealed Sprinkler Wrench.
Caremustbe takentoensurethat
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 the
replaced sprinklers and repair all
leaks.
Using Disassembly Method 2:
The second method of removing the
Model HQR-2 Institutional Quick Re-
sponse Flush Pendent Sprinkler re-
sults in complete destruction of the
unit. Therefore, none of the sprinkler
components may be reused:
1. Remove the system from service,
drain all water, and relieve all
pressure on the piping.
2. Disassemble and remove the fus-
ible element, andbend thedeflec-
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.
5. Install the new unit usingtheFlush/
ConcealedSprinklerWrench.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.)
6. Place the system back in service
and secure all valves. Check the
replaced sprinklers 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.Sprinklersthathavebeen
exposed to corrosive products of
combustionorhighambienttempera-
tures, but have not operated, should
be replaced. Refer to the Authority
Having Jurisdiction for minimum re-
placement requirements.
T
TECHNICAL DATA
March 18, 1999
Sprinkler 60 d
MODEL HQR-2 INSTITUTIONAL
QUICK RESPONSE FLUSH
PENDENT SPRINKLER
Form No. F_100998
Replaces page 60 a-d, dated February 25, 1999
(added disclaimer and installation tip).
OBSOLETE