Residential Horizontal Sidewall and
Recessed Hor. Sidewall Sprinklers
Mizar™ S215, K=3.5
GENERAL DESCRIPTION
The Star Mizar S215 Residential Horizontal Sidewall and
Recessed Horizontal Sidewall Sprinklers are decorative
glass bulb sprinklers designed for use in residential occu-
pancies such as homes, apartments, dormitories, and ho-
tels.
They are to be used in wet pipe residential sprinkler sys-
tems for one- and two-family dwellings and mobile homes
per NFPA 13D; wet pipe residential sprinkler systems for
residential occupancies up to and including four stories in
height per NFPA 13R; or, wet pipe sprinkler systems for
the residential portions of any occupancy per NFPA 13.
The Mizar S215 has a 3.5 (50,4) K-factor which provides
very low design flow rates at reduced residual pressures,
enabling smaller pipe sizes and water supply require-
ments. They are designed for installation along a wall or
lintel and just beneath a smooth and level ceiling. Side-
wall sprinklers are generally used in lieu of ceiling sprin-
klers because of either aesthetic or building construction
considerations.
The recessed version of the Mizar S215 using a
#2084 Recessed Escutcheon provides 1/4 inch (6,4 mm)
of recessed adjustment or up to 1/2 inch (12,7 mm) of to-
tal adjustment from the flush sidewall position.
The Mizar S215 has been designed with heat sensitivity
and water distribution characteristics proven to help in
the control of residential fires to improve the chance for
occupants to escape or be evacuated. However, residen-
tial fire sprinkler systems are not a substitute for intelli-
gent fire safety awareness or fire safety construction re-
quired by building codes.
WARNINGS
The Mizar S215 Residential Horizontal Sidewall and
Recessed Horizontal Sidewall Sprinklers described
herein must be installed and maintained in compli-
ance with this document, as well as with the applica-
ble standards of the National Fire Protection Associa-
tion, in addition to the standards of any other
authorities having jurisdiction. Failure to do so may
impair the integrity of these devices.
Because of the above cited stipulations and the var-
ied nature of residential type architecture, there will
be some compartment designs which cannot be fully
sprinklered in accordance with the recommendations
of NFPA 13, 13D, or 13R. In the event of this condi-
tion, consult the authorities having jurisdiction for
guidance and approval.
It is the responsibility of the installing contractor to
provide a copy of this document to the owner or their
representative, and in turn, it is the obligation of the
owner to provide a copy of this document to a suc-
ceeding owner.
The owner is responsible for maintaining his fire pro-
tection system and devices in proper operating condi-
tion. The installing contractor or sprinkler manufac-
turer should be contacted relative to any questions.
OPERATION
The glass bulb contains a fluid which expands when ex-
posed to heat. When the rated temperature is reached,
the fluid expands sufficiently to shatter the glass bulb,
which then allows the sprinkler to activate and flow water.
TECHNICAL DATA
Approvals
UL and ULC Listed. NYC Accepted (MEA 212-98-E).
(The approvals apply to the service conditions indicated
in the Design Criteria section.)
Maximum Working Pressure
175 psi (12,1 bar)
Discharge Coefficient
K = 3.5 GPM/psi
1/2
(50,4 LPM/bar
1/2
)
Temperature Ratings
155°F/68°C or 175°F/79°C
Finishes
Sprinkler: White Polyester, Chrome Plated, Natural Brass
Recessed Escutcheon: White Coated or Chrome Plated
(Colors other than white available on request.)
Physical Characteristics (Ref. Figure 1)
The Mizar S215 utilizes a dezincification resistant (DZR)
bronze frame. The button is phosphor bronze, and the
bushing is brass. The gasketed spring plate consists of a
beryllium nickel disc spring that is sealed on both its in-
side and outside edges with a Teflon
gasket. The ejec-
tion spring is stainless steel, the compression screw is
phosphor bronze, and the deflector is brass.
SIN S2330
#2330 Shown With
#2084 Recessed Escutcheon
Customer Service/Sales: Tel: (800) 558-5236 • Fax: (414) 570-5010
Technical Services: Tel: (800) 381-9312 • Fax: (800) 791-5500
7-02
1-3.3.20
TYCO FIRE PRODUCTS
SPRI
NKLERS
F
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REPLA
CEMENT
USE
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IN
EXIS
T
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SPRI
NKLER
SY
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OBSOLETE
