Viking HORIZON MIRAGE B-1 Instruction manual

1. PRODUCT NAME
VIKING HORIZON®MIRAGE® EX-
TENDED COVERAGE CONCEALED
PENDENT SPRINKLERS
Model B-1 Standard Orifice Sprinkler
Base Part No. 08498
Available since 1993
Model B-2 Large Orifice Sprinklers
Base Part No. 10485
Available since 1998
Base Part No. 10680
Available since 1999
Cover Plate Assembly
Base Part No. 09804
Available since 1996
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
VikingExtendedCoverageHorizon®Mi-
rage®Concealed Sprinklers are small,
solder link and lever spray sprinklers
designed for installation on concealed
pipe systems.
Equipped with a special deflector, the
sprinklers are designed to meet Light
Hazarddensityrequirementsforspecific
extended areas of coverage when the
required minimum water supply is pro-
vided at the sprinkler.
After the sprinkler system has been
tested and the ceiling finish applied, the
sprinkler is hidden from view by a low
profile, small-diameter cover plate, in-
stalled flush to the ceiling. The cover
plate is available in several decorative
finishes to meet design requirements.
The "push on", "thread off" design al
lows for easy installation of the cover
plate, with up to 1/2" (12,7 mm) of
vertical adjustment. The"thread off"fea-
ture is designed to prevent unwanted
disengagement of the cover assembly.
The cover assembly can be removed
and reinstalled to permit temporary re-
moval of ceiling panels without taking
the sprinkler system out of service and
removing the sprinkler.
Inside the body of the sprinkler, the de-
flector and sealing assembly are held in
position by a heat-sensitive fusible link.
The sprinklers are listed as standard
response sprinklers when installed
according to the listed 20 ft. x 20 ft.
(6,1 m x 6,1 m) spacing. (Refer to the
approval chart on this page for other
listings.)
Listed for this spacing as Quick Resp. Ext. Coverage Sprin-
kler. See Quick Resp. Ext. Coverage Sprinkler page 58 a-d.
Listed for this spacing as Quick Response
Extended Coverage Sprinklers. See Quick Re-
sponse Extended Coverage Sprinkler page 58 a-d.
Sprinkler 87 a
Form No. F_061593
TECHNICAL DATA
HORIZON®MIRAGE®
EXTENDED COVERAGE
20 ft x 20 ft (6,1 m x 6,1 m)
CONCEALED SPRINKLERS
Note: Units of measure in parentheses may be approximations.
Figure B
Figure A
Replaces page 87 a-d, dated August 4, 1998
(added new Model B-2 Part Number 10680).
February 11, 1999
Viking Horizon®Mirage®
Extended Coverage
Concealed Sprinkler Cover Plate Assembly: P/N 09804
1/2" NPT Sprinklers:
P/N 08498 (std. orifice)
P/N 10485 (large orifice)
3/4" NPT Sprinkler:
P/N 10680
(large orifice)
Sprinkler Nominal Highest Ambient Required
Temperature Temperature Temperature Allowed Cover Assembly
Classification Rating1at Ceiling2Temperature Rating
Ordinary 165 °F (74 °C) 100 °F (38 °C) 165 °F (74 °C)
Areas of Coverage
Model B-1 Standard Orifice Horizon®Mirage®
Extended Coverage Concealed Sprinkler
Sprinkler NPT Max. Area Nominal Minimum
Approvals4
Part Thread of Coverage5 K-factor6 Water Supply
Number3Size L x W Requirements UL7C-UL7NYC8
08498 1/2" 16 ft. x 16 ft. 5.5
(15mm) 4,9 m x 4,9 m 7,9
08498 1/2" 18 ft. x 18 ft. 5.5
(15mm) 5,5 m x 5,5 m 7,9
08498 1/2" 20 ft. x 20 ft. 5.5 40 gpm @ 53.0 psi Yes Yes Yes
(15 mm) 6,1 m x 6,1 m 7,9 151,4 L/min @ 368 kPa
Footnotes
1 Temperature rating of Viking Horizon®Mirage®Concealed Sprinkler is stamped on the sprinkler body.
2 Based on NFPA-13. Other limits may apply depending on fire loading, sprinkler location, and other
requirements of the Authority Having Jurisdiction. Refer to specific installation standards.
3 Base part number shown. For complete part number, refer to Viking price list.
4This chart shows listings and approvals available at time of printing. Other approvals are in process.
Check with the manufacturer for additional approvals.
5For areas of coverage smaller than shown, use the "Minimum Water Supply Requirement" for the next
larger "Area of Coverage" listed for the sprinkler used. The distance from sprinklers to walls shall not
exceed one-half the sprinkler spacing indicated for the "Minimum Water Supply Requirement" used.
6Metric 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.
7 Listing is limited to Light Hazard Occupancies with smooth, flat, horizontal ceilings.
8Accepted for use by City of New York Department of Buildings, MEA 89-92-Vol. IX.
Listed for this spacing as Quick Resp. Ext. Coverage Sprin-
kler. See QuickResp.Ext.CoverageSprinkler page 58 a-d.
Areas of Coverage
Model B-2 Large Orifice Horizon®Mirage®
Extended Coverage Concealed Sprinklers
Sprinkler NPT Max. Area
Nominal Minimum Approvals4
Part Thread of Coverage5
K-factor6 Water Supply
Numbers3Size L x W Requirements UL7C-UL7--
10485 1/2"(15mm) 16 ft. x 16 ft. 8.0
10680 3/4" (20 mm) 4,9 m x 4,9 m 11,5
10485 1/2" (15 mm) 18 ft. x 18 ft. 8.0
10680 3/4"(20mm) 5,5 m x 5,5 m 11,5
10485 1/2"(15mm) 20 ft. x 20 ft. 8.0 40 gpm @ 25.0 psi Yes Yes --
10680 3/4"(20mm) 6,1 m x 6,1 m 11,5 151,4 L/min @ 174kPa
Listed for this spacing as Quick Response
Extended Coverage Sprinklers. See Quick Re-
sponse Extended Coverage Sprinkler page 58 a-d.
For Light Hazard Occupancies only.
OBSOLETE

During fire conditions, when the tem-
perature around the sprinkler ap-
proaches its operating temperature, the
cover plate detaches. Continued heat-
ing of the exposed sprinkler causes the
fusible link to disengage, releasing the
deflector and sealing assembly. Water
flowing through the sprinkler orifice
strikes the deflector, forming a uniform
spray pattern to extinguish or control the
fire.
4. TECHNICAL DATA
Listings and Approvals: Refer to ap-
proval chart on the previous page.
Ratedto175psi(1207kPa)waterwork-
ing pressure.
Factory tested pneumatically to 95 psi
(655 kPa).
Spring: U.S.A. Patent No. 4,570,720.
Thread Sizes:
Part Nos. 08498 and 10485: 1/2" (15
mm) NPT
Part No. 10680: 3/4" (20 mm) NPT
Orifice Sizes:
Part No. 08498: Nominal 1/2" (15
mm)
Part Nos. 10485 and 10680: Nominal
17/32" (20 mm)
K-factors:
Part No. 08498: 5.5 (7,9 metric*)
Part Nos. 10485 and 10680: 8.0
(11,5 metric*)
*Metric K-factor shown is for use when pres-
sure is measured on kPa. When pressure is
measured in BAR, multiply the metric K-fac-
tor shown by 10.0
Minimumoperatingpressure:7psi(48,3
kPa).
Maximum distance from sprinklers to
walls: One half the allowable sprin-
klerspacingindicatedin theapproval
chart for the "Maximum Area of Cov-
erage Length x Width" used.
Available Cover Plate Vertical Adjust-
ment:1/2"(12,7mm)+/-1/4"(6,4mm).
Sprinkler Materials:
Body: Brass Casting UNS-C84400
Body Cap: Brass UNS-C26000
Deflector: Copper UNS-C19500
Deflector Pins: Stainless Steel UNS-
S30300
Lever Bar: Copper Alloy UNS-C72500
Compression Screw: Brass UNS-
C36000
Fusible Link Assembly*: Nickel Alloy
and Eutectic Solder
* Fusible links of Viking Extended Coverage Hori-
zon®Mirage®Concealed Sprinklers are marked
with a yellow stripe or dot for identification pur-
poses.
Fusible Link Levers: Stainless Steel
UNS-S31600
Seal: Teflon®Tape
Spring: Nickel Alloy
Cover Plate Assembly Materials:
Cover Plate Assembly: Brass UNS-
C26000
Spring: Nickel Alloy
Solder: Eutectic
Cover Finishes:
Bright Brass
Polished Chrome
Painted1White (No. 10042)
Painted1Ivory (No. 16342)
Painted1Black (No. 10072)
1 Painted finish consists of Polyester Baked
Enamel.
2 Sherwin-Williams®Color AnswersInterior
Color Number. Other colors are available on re-
quest. See Sherwin-Williams® Color Answers
Interior Color Selection color numbers.
Ordering Instructions:
Horizon®Mirage®Sprinklers and cover
plates must be ordered separately. To
order the Viking Extended Coverage
Horizon®Mirage®Concealed Sprinkler,
refer to:
Model B-1 Standard Orifice
Sprinkler Base Part No. 08498 or
Model B-2 Large Orifice
Sprinkler Base Part No. 10485 with
1/2" (15 mm) NPT or
Sprinkler Base Part No. 10680 with
3/4" (20 mm) NPT
To order the cover plate assembly, refer
to: Base Part No. 09804.
NOTE:Specifythetemperatureratingof
thesprinkler,andthetemperaturerating
and finish of the cover plate assembly.
Accessories:
Sprinkler Cabinet: Part No. 01731A
Capacity: six (6) sprinklers
Concealed Sprinkler Wrenches*:
Heavy Duty: Part No. 08336W/B
Available since 1983
Light Duty: Part No. 10366W/B**
Available since 1998
* A 1/2" ratchet is required (not available from Vi-
king).
** Ideal for sprinkler cabinets.
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
For details of warranty, refer to Viking’s
current price schedule or contact The
Viking Corporation directly.
7. INSTALLATION
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 or cover plate assembly after it
leaves the factory including, but not lim-
itedto:painting,plating,coatingormodi-
fication, may render the sprinkler inop-
erative and will automatically nullify the
approval and any guarantee made by
The Viking Corporation.
A.Sprinklersmustbeinstalledinaccord-
ance with recognized standards in
the country of installation. Regard-
less of the standard used, the instal-
lation must be acceptable to all
Authorities Having Jurisdiction.
B. Sprinklers must be handled withcare.
Horizon®Mirage®Concealed Sprin-
klers are protected with a plastic
shell, which should remain in place
over the sprinkler body during instal-
lation,testing,andanytimethesprin-
kler is handled or shipped. The plas-
tic protective shell must be removed
prior to placing thesystemin service.
TECHNICAL DATA
Sprinkler 87 b
Protective
Cap
Concealed Sprinkler Wrench**
Part No. 08336W/B (shown)
or Part No. 10366W/B
** A 1/2" ratchet is required.
(Not available through Viking).
Figure C
February 11, 1999
HORIZON®MIRAGE®
EXTENDED COVERAGE
20 ft x 20 ft (6,1 m x 6,1 m)
CONCEALED SPRINKLERS
1/2" NPT Sprinklers:
P/N 08498 (std. orifice)
P/N 10485 (large orifice)
3/4" NPT Sprinkler:
P/N 10680
(large orifice)
Protective
Shell
OBSOLETE

Seesection"I"onthenextpage.Prior
to installation, sprinklers must be
stored in a cool, dry place in their
original shipping container. Never in-
stall sprinklers that have been
dropped, damaged in any way, or
have been exposed to temperatures
in excess of maximum ambient tem-
perature allowed. Such sprinklers
should be destroyed immediately.
C. Extended Coverage Horizon®Mi-
rage®Concealed Sprinklers must be
installed in neutral or negative pres-
sure plenums only.
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 tem-
perature rating used.
E. Viking Horizon®Mirage®Concealed
Sprinklers are not intended for use in
corrosive environments. Use only
sprinklerslistedforcorrosiveenviron-
ments when subject to corrosive at-
mospheres.
F. Adequate heat must be provided
whenVikingExtendedCoverageHo-
rizon®Mirage®ConcealedSprinklers
are installed on wet pipe systems.
When installing Viking Extended
Coverage Horizon®Mirage®Con-
cealed Sprinklers ondry systems,re-
fer to appropriate installation guides.
G. 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
steps:
1. Install all piping and cut the sprin-
kler drop nipple to position the
outlet of the reducing coupling at
the desired elevation. The drop
nipple must be perpendicular to
the ceiling and centered in a 2"
(50 mm) diameter opening in the
ceiling.
2. With the sprinkler in the plastic
protective shell, apply a small
amount of pipe-jointcompound or
tape to the external threads ofthe
sprinkler only, taking care not to
allow a build-up of compound in
the sprinkler inlet.
3. Use only the special wrenches
designed for installing Viking Ho-
rizon®Mirage®Concealed Sprin-
klers. With the sprinkler in the
plastic protective shell, place the
unit into the wrench.
4. Turn the unit clockwise to thread
the sprinkler into the outlet of the
coupling. DO NOT use the fusible
link to start or thread the sprinkler
into a fitting.
H. After installation, the entire system
must be tested in accordance with
the recognized installation stand-
ards. The test is applied after the
sprinkler installation to ensure no
damagehasoccurredtothesprinkler
during shipping and installation, and
to make sure the unit has beenprop-
erly tightened. If a threadleak should
occur, 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 or tape is washed out of the
joint.
I. After testing, repairing all leaks, and
installationandpaintingoftheceiling,
the cover plate assembly may be at-
tached.
1. Remove the cover from the pro-
tective box, taking care not to
damage the cover plate assem-
bly.
2. Remove the plastic protective
shell from the sprinkler. NOTE: It
is recommended to retain a pro-
tective shell in the spare sprinkler
cabinet. The internal diameter of
the special Horizon®Mirage®
Concealed Sprinkler Installation
Wrenches are designed for use
with the sprinkler contained in a
protective shell.
3. From below the ceiling, gently
place the base of the cover plate
assembly over the threaded body
ofthesprinklerprotrudingthrough
the 2" (50 mm) diameter hole in
the ceiling.
4. Push the cover plate assembly
onto the sprinkler until the unfin-
ished brass flange of the cover
plate base touches the ceiling.
The maximum adjustment available
is 1/2" (12,7 mm). DO NOT MODIFY
THE UNIT. If necessary, re-cut the
sprinkler drop nipple.
J. DISASSEMBLY: The "thread off" de-
sign of the cover plate assembly al-
lows the cover plate assembly to be
removed and reinstalled to permit
temporary removal of ceiling panels
without taking the sprinkler system
outofserviceandremovingthesprin-
kler. To remove the cover plate as-
sembly:
1. From below the ceiling, grasp the
cover plate and gently turn it
counterclockwise.
If it is necessary to remove the entire
sprinkler, the system must be re-
moved from service. See Mainte-
TECHNICAL DATA
Sprinkler 87 c
February 11, 1999
HORIZON®MIRAGE®
EXTENDED COVERAGE
20 ft x 20 ft (6,1 m x 6,1 m)
CONCEALED SPRINKLERS
Figure E: Installation of 3/4" (20 mm) NPT Sprinkler
Figure D: Installation of 1/2" (15 mm) NPT Sprinkler
1/2"
(15 mm)
NPT
2-1/4"
(57,2 mm)
2" (50 mm)
diameter hole
required.
2-3/4"
(69,8 mm)
Maximum
2-1/4"
(57,2 mm)
Minimum
2-3/4"
(69,8 mm)
2" (50 mm)
diameter hole
required.
2-7/16"
(61,9 mm)
Minimum
2-3/4"
(69,8 mm)
3/4"
(20 mm)
NPT
2-7/16"
(61,9 mm)
2-15/16"
(74,6 mm)
Maximum
OBSOLETE

nance instructions and follow all
warnings and instructions.
K. RE-ASSEMBLY: The push-on fea-
ture of the cover plate assembly al-
lows easy installation of the cover
plate.
1. From below the ceiling, gently
place the base of the cover plate
assembly over the threaded body
of the sprinkler.
2. Push the cover plate assembly
onto the sprinkler until the unfin-
ished brass flange of the cover
plate base touches the ceiling.
8. MAINTENANCE
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 or cover plate assemblies
that have been field painted or me-
chanically damaged must be re-
placed immediately. Sprinklers
showing signs of corrosion shall be
tested and/or replaced immediately
asrequired.Installationstandardsre-
quire sprinklers to be tested and, if
necessary, replaced immediately af-
tera specifiedtermofservice.For Vi-
king Horizon®Mirage®Extended
Coverage Concealed Sprinklers, re-
fer to the Installation Standards and
the Authority Having Jurisdiction for
the specified period of time after
which testing and/or replacement is
required. Sprinklers and cover plate
assemblies that have operated can-
not be reassembled or re-used, but
must be replaced. When replace-
ment is necessary, use only new
sprinklers and cover plate assem-
blies.
C. The sprinkler discharge pattern is
critical for proper fire protection.
Nothing should be hung from the
sprinkler, attached to it, or otherwise
obstructthedischargepattern.Allob-
structions must be immediately re-
moved or, if necessary, additional
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.
1. Remove the system from service,
drain all water, and relieve all
pressure on the piping.
2. Remove the cover plate assembly:
From below the ceiling, grasp the
cover plate and gently turn it coun-
terclockwise.
3. Place a plastic protective shell
(from the spare sprinkler cabinet)
over the sprinkler to be removed.
The internal diameter of the spe-
cial Horizon®Mirage®Concealed
Sprinkler installation wrenches
are designed for use with the
sprinkler contained in the shell.
4. Remove thesprinkler fromthe pip-
ing in which it is installed: Using
one of the special sprinkler
wrenches, turn the unit counter-
clockwisetoremovetheoldsprin-
kler.
5. Installthenewunit.Care must be
taken to ensure that the re-
placement sprinkler is the
proper model and style, with
the correct orifice size, tem-
perature rating, and response
characteristics. A fully stocked
spare sprinkler cabinet should be
provided for this purpose.
Use of the correct Horizon®Mi-
rage®Concealed Sprinkler can
beverifiedbycheckingthefusible
link for the following identification
scheme:
Standard Response: No stripe or
dot
Quick Response: Purple stripe or
dot
EC & QREC: Yellow stripe or dot
Follow instructions provided in
"INSTALLATION" paragraph 7.
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
subjectedtoafiremustbereturnedto
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.
FormNo. F_061593
TECHNICAL DATA
Sprinkler 87 d February 11, 1999
Replacespage 87a-d,datedAugust4,1998
(added newModel B-2 Part Number10680).
HORIZON®MIRAGE®
EXTENDED COVERAGE
20 ft x 20 ft (6,1 m x 6,1 m)
CONCEALED SPRINKLERS
OBSOLETE