Viking M Instruction manual

1. PRODUCT NAME
Viking Model M Quick Response
Extended Coverage Adjustable
Recessed Dry Sidewall Sprinkler
•Base Part Number 10542
•Available since 1998
2. MANUFACTURER
The Viking Corporation
210 N. Industrial Park Road
Hastings, Michigan 49058 USA
Telephone:[phone]
[phone]
Fax: [phone]
e-mail: [email protected]m
3. PRODUCT DESCRIPTION
The Viking Model M Quick Response
Extended Coverage (QREC) Dry Side-
wall Sprinkler is a thermosensitive
glass-bulb spray sprinkler, suitable for
use in areas subject to freezing. It is de-
signed for dry systems and preaction
systems where necessary to prevent
waterorcondensationfromentering the
supply nipple prior to sprinkler actua-
tion. This sprinkler may also be installed
in spaces subject to freezing and sup-
plied from a wet system in an adjacent
heated area.
The assembly features a sealed brass
inlet and a durable threaded steel barrel
with an Electrodeposited Epoxy Base
coating. This sprinkler is of the Model M
design with a rugged 3 mm glass bulb
and horizontal style sidewall deflector.
The QREC Dry Horizontal Sidewall
Sprinkler is available in several finishes
and temperature ratings to meet design
requirements (see Table 1).
The seal at the threaded end of the as-
semblyisheldinplacebyforcetransmit-
tedfromthecompressionscrewthrough
the glass bulb and internal parts, onto a
specialsealing spring. Duringfirecondi-
tions, the heat-sensitive liquid in the
glassbulbexpands,causingtheglassto
shatter, releasing the internal parts to
open the waterway. Water flowing
through the sprinkler orifice strikes the
sprinkler deflector, forming a uniform
spraypatterntoextinguishor controlthe
fire.
The Model M Quick Response Ex-
tended Coverage Dry Horizontal Side-
wall Sprinkler is installed with the re-
cessed style escutcheon with up to 5/8"
(15,9 mm) adjustment (see Figure A) to
provide a recessed appearance. The
escutcheon slips over the sprinkler de-
flector, allowing installation of the es-
cutcheonafterthewallfinishisapplied.
Model M Quick Response Extended
Coverage Dry Sidewall Sprinklers may
be ordered in lengths from 3-1/4" to 48"
(82,5 mm to 1 219 mm)*, and they are
available in 1/4" (6,35 mm) increments.
*Lengthsover48"(1219mm)areavailable,withno
approvals, on a “made-to-order” basis. Contact
the manufacturer.
4. TECHNICAL DATA
LISTINGS AND APPROVALS
Refer to Table 1 on page 109 d.
Listed to maximum length of 48" (1 219
mm)*.
Glass-bulb fluid temperature rated to
-65 °F (-55 °C).
Ratedto175psi(1207kPa)waterwork-
ing pressure.
Thread Size: 1" NPT or 25 mm BSPT
Orifice Size: Nominal 1/2" (15 mm)
K-Factor: 5.5 U.S. (7,9 metric**) all
listed and all approved lengths
**MetricK-factorshownis forusewhenpressureis
measuredin kPa. Whenpressure is measured in
BAR, multiply the metric K-factor shown by 10.0
Minimum operating pressure: 7 psi
(48,3 kPa).
Factory tested pneumatically at 95 psi
(655 kPa).
Spring: U.S.A. Patent No. 4,167,974
Bulb: U.S.A. Patent No. 4,796,710
SPRINKLER MATERIALS
Frame: Brass Castings UNS-C84400
Deflector: Brass UNS-C26000
Bulb: Glass, nominal 3 mm diameter
Seal: Teflon ®Tape
Spring: Nickel Alloy
Screw: Brass UNS-C36000
Pip Cap: Brass UNS-C31600
Seat: Copper UNS-C21000
Orifice: Copper UNS-C21000
Washer: Stainless Steel UNS-S30400
Spring Base: Brass UNS-C31400 or
UNS-C31600
Gasket: Buna N
Pin: Stainless Steel UNS-S42000
Tube: JIC Hydraulic Steel Tube
Inlet: Brass UNS-C36000
Support (Internal): Steel UNS-G10080
Electrodeposited Epoxy Base finish
Barrel: Steel Pipe UNS-G10200 Elec-
trodeposited Epoxy Base finish
ACCESSORIES
Dry Sprinkler Wrench†:
Recessed: Part No. 07565W/B
†Requiresaseparate1/2"squaredriveratchetand
extension (not available from Viking).
Sprinkler Guard: Chrome, with no list-
ings or approvals, for installation on
Model M Dry Sidewall Sprinklers
manufactured after May 1994 only,
Part No. 08954
AVAILABLE FINISHES
Recessed: Chrome-Enloy®or White
Polyester
ORDERING INFORMATION
Forproper shipment, specify:model,or-
ifice size, finish, temperature rating, es-
cutcheon, and length (“A” dimension).
The dry horizontal sidewall sprinklers
are ordered in specific lengths noted as
the “A” dimension (see Figure A). The
“A” dimension is the distance from the
faceofthefitting(tee)tothefinishedsur-
face of the wall in which it is to be in-
stalled. The dry horizontal sidewall
sprinklermust be orderedandmanufac-
tured specifically for the conditions of
the individual installation. For limits of
adjustment for the recessed escutch-
eon, see Figure A.
5. AVAILABILITY AND SERVICE
Vikingsprinklers areavailablethrougha
network of domestic, Canadian, and in-
ternational distributors. See the Yellow
Pagesofthetelephonedirectoryforalo-
cal distributor (listed under “Sprinklers-
Automatic-Fire”) or contact Viking.
Form No. F_051598
Sprinkler 109 a
March 11, 1999
Model M 1/2" (15 mm) Orifice Quick Response
Extended Coverage Dry Sidewall Sprinkler
For Light-Hazard Occupancies Only
Replaces page 109 a-c, dated June 22, 1998
(updated sprinkler photo).
TECHNICAL DATAMODEL M
QUICK RESPONSE
EXTENDED COVERAGE
DRY SIDEWALL SPRINKLER
Note: Units of measure in parentheses may be approximations.
OBSOLETE

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
For details of warranty, refer to Viking’s
current list price schedule or contact
The Viking Corporation directly.
7. INSTALLATION
WARNING:Viking sprinklersare manu-
factured and tested to meet the rigid re-
quirements of approving agencies. The
sprinklersaredesignedtobeinstalledin
accordance with recognized installation
standards.Deviationfromthestandards
or any alteration to the sprinkler after it
leaves the factory including, but not lim-
ited to: painting, plating, coating, or
modification, may render the sprinkler
inoperative and will automatically nullify
the approval and any guarantee made
by The Viking Corporation.
A.Sprinklersare tobe installedin 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 or-
ganizations, and also with provisions
of governmental codes, ordinances,
and standards whenever applicable.
The use of dry sidewall sprinklers
may be limited due to occupancy and
hazard. RefertotheAuthorityHaving
Jurisdiction prior to installation.
B.Sprinklersmustbehandledwithcare.
They must be stored in a cool, dry
place in their original container.
Never install sprinklers that have
been dropped or damaged in any
way. Never install a glass-bulb sprin-
kler if the bulb is cracked or if there is
alossofliquidfromthebulb.Ifaglass
bulb lacks the appropriate amount of
fluid, it should be set aside and re-
turned to Viking (or an authorized Vi-
king distributor) for analysis as soon
as possible. If the sprinkler is not re-
turned to Viking, it should be de-
stroyed immediately. Never install
sprinklers that have been exposed to
temperatures in excess of maximum
ambient allowed (these sprinklers
should be destroyed immediately).
C. Viking Model M Dry Sidewall Sprin-
klers are not intended for use in cor-
rosive environments. Use only sprin-
klers listed for corrosive environ-
ments when subject to corrosive at-
mospheres.
WARNING: Model M Dry Horizontal
Sidewall Sprinklers MUST be in-
stalled into the 1" outlet of a cast iron
ormalleableironteestylefittingonly.
The threaded end of the dry sidewall
sprinkler is designed to allow the seal to
penetrate and extend into the fitting to a
predetermined depth. This prevents
condensation from accumulating and
freezing over the sprinkler seal.
1. DO NOT install the dry sidewall
sprinklers into a threaded elbow,
coupling, or any other fitting that
could interfere with thread pene-
tration. Such installation would
damage the brass seal.
2. DO NOT install the dry sidewall
sprinkler into a coupling or fitting
that would allow condensation to
accumulate above the seal, when
locatedin an areasubjecttofreez-
ing.
3. NEVER try to modify the dry side-
wall sprinkler. The sprinklers are
manufactured for a specific “A” di-
mensionandcannotbemodified.
D. The sprinkler must be installed after
the piping is in place to prevent me-
chanicaldamage.Before installation,
besuretohavetheappropriatesprin-
kler model and style, with the correct
orifice size, temperature rating, re-
sponse characteristics, and “A” di-
mension. Apply a small amount of
pipe-joint compound or tape to the
male threads only, taking care not to
allow a build-up of compound over
the brass inlet and seal. Install the
sprinkler onto the piping using the
special dry sprinkler wrench only,
while taking care not to damage the
sprinkler.DONOTuse apipe wrench
onthe barrel ofthedrysidewallsprin-
kler.
E. After installation, the entire sprinkler
systemmust betested inaccordance
with the recognized installation stan-
dards. The test is applied after sprin-
kler installation to ensure that no
damagehasoccurredtothe sprinkler
during shipment and installation, and
to make certain 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 com-
pound is washed out of the joint.
F. Wet pipe systems supplying dry side-
wall sprinklers must be provided with
adequate heat. Refer to appropriate
installation standards.
8. MAINTENANCE
NOTICE:The owner is responsible for
maintaining the fire protection system
Sprinkler 109 bMarch11,1999
Available
Adjustment:
1-7/8" (47,6 mm)
minimum
1/2" (12,7 mm)
3-1/16"
(77,8 mm)
4" (102 mm) minimum
12" (305 mm) maximum
For “A” dimension:
1. Determine the distance from face of tee
to face of finished wall.
2. Round to nearest 1/4" (6,35 mm) between
3-1/4" (82,5 mm) and 48" (1 219,2 mm).
NOTE:The sprinkler will be recessed approx-
imately 5/16" (7,9 mm) with 5/8"
(15,8 mm) horizontal adjustment.
Minimum ceiling hole size:
2-1/8" (54 mm) diameter.
Ceiling
Wall
5/16" (7,9 mm) outward
and inward adjustment
Figure A
Model M Adjustable Recessed
Dry Horizontal Sidewall
Sprinkler
TECHNICAL DATAMODEL M
QUICK RESPONSE
EXTENDED COVERAGE
DRY SIDEWALL SPRINKLER
OBSOLETE

and devices in proper operating condi-
tion.Forminimumrequirements,referto
the National Fire Protection Associa-
tion’s pamphlet that describes care and
maintenance of sprinkler systems. In
addition, the “Authority Having Jurisdic-
tion” may have additional maintenance,
testing, and inspection requirements
that must be followed.
A. The sprinklers must be inspected on
a regular basis for signs of corrosion,
mechanical 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 field
painted, caulked, or mechanically
damaged must be replaced immedi-
ately. Sprinklers showing signs of
corrosion shall be tested and/or re-
placed immediately as required.
Model M QREC Dry Sidewall Sprin-
klers that are 20 years old shall be
tested and/or replaced immediately
as required. Never attempt to repair
or reassemble a dry sidewall sprin-
kler. Sprinklers that have operated
cannot be reassembled or re-used,
but must be replaced. When replac-
ing sprinklers, use only new sprin-
klers.
C. The sprinkler discharge pattern is
critical for proper fire protection.
Nothing should be hung from, at-
tached to, or otherwise obstruct the
discharge pattern. All obstructions
must be immediately removed or, if
necessary, additional sprinklers in-
stalled.
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 effected area.
1. Remove the system from service,
drainallwater,andrelieveallpres-
sure on the piping.
2.Usingthespecialsprinklerwrench,
remove the old sprinkler and in-
stall the new unit. Care must be
taken to ensure that the replace-
ment sprinkler is appropriate
model and style, with the correct
orificesize, temperaturerating,re-
sponse characteristics, and “A” di-
mension.
3. Place the system back in service
and secure all valves. Check for
and repair all leaks.
E. Sprinkler systems that have been
subjectedtoafiremustbereturned
to service as soon as possible. The
entire system must be inspected for
damage and repaired or replaced as
necessary.Sprinklersthathavebeen
exposed to corrosive products of
combustion or high ambient temper-
atures,buthavenotoperated,should
be replaced. Refer to the Authority
Having Jurisdiction for minimum re-
placement requirements.
Sprinkler 109 c
March 11, 1999
TECHNICAL DATAMODEL M
QUICK RESPONSE
EXTENDED COVERAGE
DRY SIDEWALL SPRINKLER
OBSOLETE

Form No. F_051598
Replaces page 109 a-c, dated June 22, 1998
(updated sprinkler photo).
Sprinkler
Temperature
Classification
Nominal
Temperature
Rating
Ceiling Temperature at Sprinkler
Max. Ambient
Temp. Allowed 1Max Recommended
Ambient Temp.2
Ordinary155 °F (68 °C)135 °F (57 °C)100 °F (38 °C)
Intermediate175 °F (79 °C)155 °F (68 °C)150 °F (65 °C)
Approval Chart
Model M Quick Response Extended Coverage Dry Sidewall Sprinkler
Maximum Area of Coverage 4
Width x ThrowNominal K-FactorMinimum Water Supply
RequirementsListings 3
U.S.metric 5UL6C-UL6
16 ft. x 16 ft.
4,9 m x 4,9 m5.57,926 gpm @ 22.4 psi 98,4 L/min @ 155,0 kPa A1A1
16 ft. x 18 ft.
4,9 m x 5,5 m5.57,929 gpm @ 27,8 psi 109,8 L/min @ 193,27 kPa A1A1
16 ft. x 20 ft.
4,9 m x 6,1 m5.57,9Listed for this spacing as Standard Response Dry Pendent Extended Coverage Sprinkler. See Extended Coverage Dry Sprinkler page 109 e-g.
Approved Temperatures
A - 155 °F (68 °C) and 175 °F (79 °C)
Approved Finishes
1 - Chrome-Enloy ®or White Polyester
Footnotes
1 Based on National Fire Prevention and Control Administration Contract No. 7-34860.
2BasedonNFPA-13.Otherlimitsmayapply,dependingonfireloading,sprinklerlocation,a ndotherrequirementsoftheAuthorityHaving Juris-
diction. Refer to specific installation standards.
3Thischartshowslistings and approvals availableattimeofprinting.Other approvals may bein process. Check with the manufacturer for addi-
tional approvals.
NOTE:Viking Model M Dry Horizontal Sidewall Sprinklers are listed for installation in Light-Ha zard occupancies.
Viking Model M Dry Horizontal Sidewall Sprinklers must be positioned between 4" and 12" (1 02 mm and 305 mm) below smooth
ceilings, and not less than 4" (102 mm) from walls other than the wall in which they are installe d. Top of deflector must be parallel
to the ceiling. Refer to appropriate installation guide.
4Forareas of coveragesmaller than shown, use the "MinimumWater Supply Requirement"forthe next larger"Area of Coverage"listed for the
sprinklerused. The distancefrom sprinklers to walls shall not exceedone-half the sprinkler spacing indicated for the "MinimumWater Supply
Requirement" used.
5MetricK-factorshownisfor use when pressure is measured inkPa.WhenpressureismeasuredinBAR,multiplythemetric K-factorshown by
10.0.
6UL and C-UL Listing is limited to Light-Hazard occupancies with smooth, flat, horizontal c eilings.
Table 1
TECHNICAL DATA
Sprinkler 109 dMarch11,1999
MODEL M
QUICK RESPONSE
EXTENDED COVERAGE
DRY SIDEWALL SPRINKLER
OBSOLETE