Viking Microfast M Instruction manual

1. PRODUCT NAME
Viking Microfast®Model M / M-5 Quick
Response Sidewall Sprinklers
•ModelMHorizontalSidewallSprinkler
Base Part Number 06725B
•ModelMVerticalSidewallSprinkler
Base Part Number 06727B
•Model M Horizontal Sidewall Sprin-
kler Base Part Number 08983
•Model M Vertical Sidewall Sprinkler
08985
•ModelM-5HorizontalSidewallSprinkler
Base Part Number 09533
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]m
3. PRODUCT DESCRIPTION
The Viking Microfast ®Model M and
Model M-5 Quick Response Sidewall
Sprinklers are small, thermosensitive
glass-bulbspraysprinklers.The pip-cap
and sealing assembly of the sprinklers
areheldinplacebyarugged3mmglass
bulb.
Viking Microfast®Model M Quick Re-
sponse Sidewall Sprinklers are avail-
able in vertical sidewall or horizontal
sidewall styles.
The Viking Microfast ®Model M-5 Quick
Response Sidewall Sprinkler is avail-
able as a horizontal sidewall style only.
Both sprinklers are available with sev-
eral finishes and temperature ratings to
meet design requirements. The vertical
style is listed for use in either the upright
or pendent position. The special polyes-
ter and Teflon® coatings can be used in
decorative applications where colors
are desired. In addition, these two fin-
ishes are corrosion resistant and pro-
vide protection against many corrosive
environments.
Duringfireconditions,whenthe temper-
ature around the sprinkler reaches its
operating temperature, the
heat-sensitiveliquidintheglassbulbex-
pands, causing the bulb to shatter, re-
leasing the pip-cap and sealing spring
assembly. Water flowing through the
sprinkler orifice strikes the sprinkler de-
flector, forming a uniform spray pattern
to extinguish or control the fire.
4. TECHNICAL DATA
LISTINGS AND APPROVALS
Refer to Table 2 on page 52 c.
Glass-bulb fluid temperature rated to
-65 °F (-55 °C).
Ratedto175psi(1207kPa)waterwork-
ing pressure.
Factory tested hydrostatically to 500 psi
(3 448 kPa).
Spring: USA Patent No. 4,167,974
Bulb: USA Patent No. 4,796,710
Testing: USA Patent No. 4,831,870
Minimumoperatingpressure:7psi(48,3
kPa)
SPRINKLER MATERIALS
Frame: Brass Castings UNS-C84400
Vertical Deflector: Brass UNS-C26000
Horizontal Deflector: Copper
UNS-C19500
Bulb: Glass, nominal 3 mm diameter
Seal: Teflon®Tape
Spring: Nickel Alloy
Screw: Brass UNS-C36000
Pip Cap: Copper UNS-C11000 and
Stainless Steel UNS-S30400
Polyester-Coated Sprinklers:
Spring: Nickel Alloy, exposed
Screw: Brass UNS-C36000
Painted for appearance only.
Pip Cap: Copper UNS-C11000 and
Stainless Steel UNS-S30400
Teflon ®-Coated Sprinklers:
Spring: Nickel Alloy, exposed
TECHNICAL DATAMicrofast®MODEL M / M-5
QUICK RESPONSE
SIDEWALL SPRINKLER
Sprinkler52a
June 16, 1999
Microfast®Model M
Quick Response
Vertical Sidewall
Sprinkler
for Light-Hazard
Occupancies
Base Part No. 06727BFor list of approvals,
see Table 2 on page 52 c.
Microfast ®Model M
Quick Response
Horizontal Sidewall
Sprinkler
for Light-Hazard
Occupancies
Base Part No. 06725B
Sprinkler
Temperature
Classification
Nominal Sprinkler
Temperature Rating
(Fusing Point)
Ceiling Temperature at SprinklerBulb
Color
Max. Ambient
Temp.Allowed 1Max. Recommended
Ambient Temp. 2
Ordinary135 °F (57 °C)115 °F (46 °C)100 °F (38 °C)Orange
Ordinary155 °F (68 °C)135 °F (57 °C)100 °F (38 °C)Red
Intermediate175 °F (79 °C)155 °F (68 °C)150 °F (65 °C)Yellow
Intermediate200 °F (93 °C)180 °F (82 °C)150 °F (65 °C)Green
High286 °F (141 °C)266 °F (130 °C)225 °F (107 °C)Blue
Sprinkler Finishes: Brass, Bright Brass, Chrome-Enloy ®(patents pending), White Poly-
ester3, Black Polyester 3, and Black Teflon ®3
Footnotes
1 Based on National Fire Prevention and Control Administration Contract No. 7-34860.
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.
3The corrosion-resistant coatings have passed standard corrosion tests required by
particular approving agencies. Refer to the approval chart on page 51 c. These tests can-
not and do not represent all possible corrosive environments. Prior to installation, verify
through the end-user that the coatings are compatible with or suitable for the proposed
environment. The coatings indicated are applied to the exposed exterior surfaces only.
NOTE: The sprinkler is exposed on the Polyester-Coated and Teflon ®-coated sprinklers.
Table 1
Microfast®Model M-5
Quick Response
Horizontal
Sidewall Sprinkler
for Ordinary-Hazard
Occupancies
Base Part No. 09533
Replaces sprinkler page 52 a-c, dated June 9, 1997 and May 27, 1999 (updated finishes and
escutcheons lists, revised pip-cap materials, and added 10 mm part numbers 08983 and 08985).
FormNo.F_080688
OBSOLETE

Screw: Brass UNS-C36000
Painted black for appearance only.
Pip Cap: Copper UNS-C11000 and
Stainless Steel UNS-S30400,Tef-
lon®Coated
ACCESSORIES
Sprinkler Wrenches:
•Standard Wrench: Part No.
05000CW/B
•Wrenchforcoatedandrecessed
Microfast®Sidewall Sprinklers:
Part No. 07398W*
* A ½" ratchet is required (not available from Vi-
king).
Refer to the “SPRINKLER ACCES-
SORIES” section of the Viking Engi-
neering and Design Databook for tech-
nical data on approved escutcheons
and other accessories.
5. AVAILABILITY AND SERVICE
Vikingsprinklersare available through a
network of domestic, Canadian, and in-
ternational distributors. See the Yellow
Pages of the telephone directory (listed
under “Sprinklers-Automatic-Fire”) for a
local distributor, 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
currentlistpricescheduleorcontactThe
Viking Corporation directly.
7. INSTALLATION
WARNING:Viking sprinklers are manu-
factured and tested to meet the rigid re-
quirements of approving agencies. The
sprinklersare designed tobeinstalledin
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.Sprinklers aretobeinstalledinaccor-
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 the provi-
sions of governmental codes, ordi-
nances,andstandardswheneverap-
plicable. The use of quick response
sidewall sprinklers may be limited
due to occupancy and hazard. Refer
to the Authority Having Jurisdiction
prior to installation.
B.Sprinklersmustbehandled withcare.
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 the maximum ambient
temperature allowed. Never install
any glass-bulb sprinkler if the bulb is
cracked or if there is a loss of liquid
fromthebulb.Ifaglassbulblacksthe
appropriate amount of fluid, it should
be set aside and returned to Viking
(or an authorized Viking distributor)
for analysis as soon as possible. If
thesprinkleris not returned toViking,
it should be destroyed immediately.
C. Corrosion-resistant sprinklers must
be installed when subject to corro-
sive atmospheres. When installing
corrosion-resistant sprinklers, take
care not to damage the corro-
sion-resistant coating. Use only the
special wrench designed for install-
ing coated Viking sprinklers (any
otherwrenchmaydamagetheunit).
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. Before installation, be sure to have
the appropriate sprinkler model and
style, with the proper orifice size,
temperature rating, and response
characteristics.
For allowable deflector distance be-
low ceiling of Microfast®Model M /
M-5 Quick Response Horizontal
Sidewall Sprinklers, refer to approval
chart on page 52 c. Align top of hori-
zontal sidewall deflectors parallel to
the ceiling or roof.
Locate deflectors of Microfast®
ModelM/M-5QuickResponseVerti-
cal Sidewall Upright Sprinklers 4" to
6" (102 mm to 152 mm) below the
ceiling (see approval chart).
Locate deflectors of Microfast®
ModelM/M-5QuickResponseVerti-
calSidewallPendentSprinklersupto
6" (152 mm) below the ceiling (see
approval chart).
Installsidewallsprinklers withdeflec-
tors located 4" to 6" (102 mm to 152
mm)fromwalls.Exception:Sidewall
sprinklers may be installed less than
4" (102 mm) from the wall on which
they are mounted.
The sprinklers must be installed after
the piping is in place to prevent me-
chanical damage.
1. Installescutcheon(if used),which
is designed to thread onto the ex-
ternalthreadsofthesprinkler.Re-
fer to the “Sprinkler Accessories”
section of the Viking Engineering
and Design Databook for ap-
proved escutcheons and other
accessories.
2. Apply a small amount of pipe-joint
compound or tape to the external
threads of the sprinkler only, tak-
ing care not to allow a build-up of
compound in the sprinkler inlet.
3. Install the sprinkler on the piping
usingthespecial sprinklerwrench
only, taking care not to
over-tighten or damage the sprin-
kler operating parts. DO NOT use
the deflector to start or thread the
sprinkler into a fitting.
F. After installation, the entire sprinkler
systemmustbetestedinaccordance
with the recognized installation stan-
dards. The test is applied after sprin-
kler installation to ensure that no
damagehasoccurredtothesprinkler
during shipping and installation, and
to make sure the sprinkler has been
properly tightened. If a thread leak
occurs, normally the sprinkler must
be removed, new pipe-joint com-
pound or tape applied, and then rein-
stalled. This is due to the fact that
when the joint seal is damaged, the
sealing compound or tape is washed
out of the joint. Air testing the sprin-
kler piping prior to testing with water
may be considered in areas where
leakage during testing must be pre-
vented.RefertotheInstallationStan-
dardsand theAuthorityHaving Juris-
diction.
G. Sprinklers must be protected from
mechanical damage. Wet-pipe sys-
tems must be provided with ade-
quate heat. When installing quick re-
sponsesprinklersondrysystems,re-
fer to the Installation Standards and
the Authority Having Jurisdiction.
TECHNICAL DATAMicrofast ®MODEL M / M-5
QUICK RESPONSE
SIDEWALL SPRINKLER
Sprinkler 52 bJune 16, 1999
OBSOLETE

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 Na-
tional Fire Protection Association’s
pamphlet that describes care and main-
tenance of sprinkler systems. In addi-
tion, the Authority Having Jurisdiction
may have additional maintenance, test-
ing, and inspection requirements that
must be followed.
A.Sprinklers must be inspected on a
regular basis for corrosion, mechani-
cal damage, obstructions, paint, etc.
The frequency of the inspections
may vary due to corrosive atmo-
spheres, water supplies, and activity
around the device.
B. Sprinklers that have been painted or
mechanically damaged must be re-
placed immediately. Sprinklers
TECHNICAL DATAMicrofast® MODEL M / M-5
QUICK RESPONSE
SIDEWALL SPRINKLER
Sprinkler 52 c
June 16, 1999
Approval Chart 1
Microfast Model M/M-5 Quick Response
Sidewall Sprinklers
(3 mm Glass Bulb)
For use in Light Hazard Occupancies: Horizontal Sidewall and Vertical Sidewall Upright S prinklers with deflectors 4" to 6" (102 mm
to 152 mm) below the ceiling. Vertical Sidewall Pendent Sprinklers with deflectors up to 6 " (152 mm) below the ceiling.
Thread SizeNominal
OrificeDescriptionNominal K-factorOverall LengthListings and Approvals 4
N.P.T.B.S.P.InchesmmStyleBase P/N 2U.S.metric 3InchesmmULULCFM5NYC6
–10 mm3/810Horizontal08983–5,82.43761,9– – – –
–10 mm3/810Vertical U/P08985–5,82.18855,58– – – –
½"15 mm½15Horizontal06725B5.57,92.564A2X, C2YA2X, B2YA1XA2X, C2Y
½"15 mm½15Vertical U/P06727B5.57,92.358D2X, E2YD2XD1XD2X
For use in Light Hazard Occupancies: With deflectors 6" to 12" (152 mm to 304 mm) below the c eiling.
Thread SizeNominal
OrificeDescriptionNominal K-factorOverall LengthListings and Approvals 4
N.P.T.B.S.P.InchesmmStyleBase P/N 2U.S.metric 3InchesmmULULCFM5NYC6
½"15 mm½15Horizontal06725B5.57,92.564A2X– – A2X
For use in Ordinary Hazard Occupancies: With deflectors 4" to 12" (102 mm to 304 mm) below the ceiling.
Thread SizeNominal
OrificeDescriptionNominal K-factorOverall LengthListings and Approvals
N.P.T.B.S.P.InchesmmStyleBase P/N 2U.S.metric 3InchesmmULC- ULFM5NYC6
½"15 mm½15Horizontal095335.57,92.564A2X, C2YA2X, C2Y– –
Approved Temperatures
A - 135 °F (57 °C), 155 °F (68 °C), 175 °F
(79 °C), 200 °F (93 °C), and 286 °F
(141°C)
B - 135 °F (57 °C) and 155 °F (68 °C)
C - 135 °F (57 °C), 155 °F (68 °C), 175 °F
(79 °C), and 200 °F (93 °C)
D - 135 °F (57 °C), 155 °F (68 °C), 175 °F
(79 °C), 200 °F (93 °C), and 286 °F
(141°C) with deflectors 4" to 6" (102
mm to 152 mm) from wall.
E - 135 °F (57 °C), 155 °F (68 °C), 175 °F
(79 °C), and 200 °F (93 °C) with deflec-
tors 4" to 6" (102 mm to 152 mm) from
wall.
Approved Finishes
1 - Brass and Chrome-Enloy
2 - Brass, Bright Brass, Chrome-Enloy®,
White Polyester7, Navajo White Poly-
ester 7, and Black Teflon ®7
Approved Escutcheons
X - Standard surface-mounted escutcheons
only.
Y - Standard surface escutcheon or Micro-
fast ®Model F-1 Adjustable Escutcheon8,
orrecessed with Micromatic ® Model E-1
Adjustable Recessed Escutcheon.
Footnotes
1This table shows the listings and approvals available at the time of printing. Other approvals are in process. Check with the manufacturer
for any additional approvals.
2Base part number is shown. For complete part number, see Viking's current price schedule.
3 Metric K-Factor shown is for use when pressure is measured in kPa. When pressure is measured i n BAR, multiply the metric K-Factor
shown by 10.0.
4UL, ULC, C-UL, FM, and NYC Listings and Approvals are limited to light hazard systems.
5FM Approved for use in wet pipe sprinkler systems (or preaction systems qualifying as wet s ystems) for protection of occupancies de-
scribed in the Factory Mutual Engineering and Research Loss Prevention Data Sheets and Technical Advisory Bulletins.
6Accepted for use, City of New York Board of Standards and Appeals, Calendar Number 219-76-SA.
7UL, C-UL, and NYC Listed as corrosion-resistant sprinklers.
8The Microfast®Model F-1 Adjustable Escutcheon is considered a surface-mounted escutcheon because it do es not allow the fusible ele-
ment of the sprinkler to be recessed behind the face of the wall or ceiling.
Table 2
KEY
Temperature
Finish
A1XEscutcheon (if applicable)
OBSOLETE

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.
Sprinklersthat haveoperatedcannot
be reassembled or re-used, but must
be replaced. When replacing sprin-
klers, use only new sprinklers.
C.Thesprinklerdischargepatterniscrit-
icalforproperfireprotection.Nothing
should be hung from, attached to, or
otherwiseobstructthedischargepat-
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.Referto 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. Using the special sprinkler
wrench, remove the old sprinkler
and install the new unit. Care
must be taken to ensure that the
replacement sprinkler is the
proper model and style, and has
the appropriate orifice size, tem-
perature rating, and response
characteristics. A fully stocked
spare sprinkler cabinet should be
provided for this purpose.
3.Place the system back in service
and secure all valves. Check and
repair all leaks.
E. Sprinkler systems that have been
subjected to a fire must be returned
to service as soon as possible. The
entire system must be inspected for
damage,andrepaired 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.
TECHNICAL DATA
Sprinkler 52 dJune 16, 1999
Microfast ®MODEL M / M-5
QUICK RESPONSE
SIDEWALL SPRINKLER
Microfast ® Model M
Vertical Sidewall Sprinkler
Base Part Number 06727B
Installed Pendent with
1/8" (3,1 mm) Escutcheon
Microfast ® Model M
Vertical Sidewall Sprinkler
Base Part Number 06727B
Installed Pendent with
Microfast ® Model F-1
Adjustable Escutcheon
Figure 1
Microfast ®Model M
Vertical Sidewall Sprinkler
Base Part Number 06727B
Microfast ®Model M
Vertical Sidewall Sprinkler
Base Part Number 06727B
Installed Pendent with Micromatic ®
Model E-1 Recessed Escutcheon
OBSOLETE

Figure 2
TECHNICAL DATA
Sprinkler 52 e
June 16, 1999
Figure 3
Microfast® MODEL M / M-5
QUICK RESPONSE
SIDEWALL SPRINKLER
Microfast ®Model M
Horizontal Sidewall Sprinkler
Base Part Number 06725B
Microfast ®Model M-5
Horizontal Sidewall Sprinkler
Base Part Number 09533
Microfast®Model M-5
Horizontal Sidewall Sprinkler
Base Part Number 09533
Installed with 1/8" (3,1 mm)
Escutcheon
Microfast ®Model M
Horizontal Sidewall Sprinkler
Base Part Number 06725B
Installed with 1/8" (3,1 mm)
Escutcheon
Microfast ®Model M
Horizontal Sidewall Sprinkler
Base Part Number 06725B
Installed with Micromatic ®
Model E-1 Recessed Escutcheon
Microfast ® Model M-5
Horizontal Sidewall Sprinkler
Base Part Number 09533
Installed with Microfast ®
Model F-1 Adjustable Escutcheon
Microfast ® Model M
Horizontal Sidewall Sprinkler
Base Part Number 06725B
Installed with Microfast ®
Model F-1 Adjustable
Escutcheon
Microfast ®Model M-5
Horizontal Sidewall Sprinkler
Base Part Number 09533
Installed with Micromatic ®
Model E-1 Recessed Escutcheon
OBSOLETE