DESIGN CRITERIA
The Mizar S215 (SIN S2330) Residential Horizontal Side-
wall and Recessed Horizontal Sidewall Sprinklers must
only be installed and utilized in accordance with the fol-
lowing described criteria which are provided by the manu-
facturer.
NOTES
Residential Fire Sprinkler Systems should only be de-
signed and installed by those competent and com-
pletely familiar with automatic sprinkler system de-
sign, installation procedures, and techniques.
Several criteria may apply to the installation and us-
age of each sprinkler. Consequently, it is recom-
mended that the sprinkler system designer review
and develop a working understanding of the com-
plete list of criteria prior to initiating the design of the
sprinkler system.
Questions concerning sprinkler installation and usage
criteria which are not covered by the following instruc-
tions should be submitted to Technical Services. In-
clude sketches and technical details as appropriate.
In some instances, the requirements of this docu-
ment may concern specifications which are more
stringent and which take precedence over those
specified in NFPA 13, NFPA 13D, NFPA 13R, or by the
authority having jurisdiction.
The spray from the Mizar S215 is distributed radially
outward and downward from the sprinkler deflector.
Consequently, the sprinklers must be located such
that there will not be any blind spaces shielded from
spray by partitions, room dividers, overhangs or
other parts of the dwelling structure.
STAR SPRINKLER
Page 2
1-3.3.20
(a) For coverage area dimensions less than or between those indicated, it is necessary to use the minimum required flow for the next
highest coverage area for which hydraulic design criteria are stated.
(b) Requirement is based on minimum flow in GPM from each sprinkler. The associated residual pressures are calculated using the
nominal K-factor. Refer to
Hydraulic Design Criteria
section for details.
(c) To meet this requirement, the centerline of sprinkler waterway (Ref. Fig. 1) must be 4-5/16 to 6-5/16 inches below the ceiling for a
deflector -to-ceiling distance of 4 to 6 inches, or 4-5/16 to 12-5/16 inches below the ceiling for a deflector-to ceiling distance of
4 to 12 inches.
TABLE A
NFPA 13D AND NFPA 13R HYDRAULIC DESIGN CRITERIA
12 x 12
COVERAGE
AREA
W x L
(a)
FT x FT
MULTIPLE
SPRINKLER
Minimum Flow
(b)
(Residual Pressure)
12 x 12
14 x 14
14 x 14
16 x 16
13 GPM
(13.8 PSI)
11 GPM
(9.9 PSI)
13 GPM
(13.8 PSI)
12 GPM
(11.8 PSI)
14 GPM
(16.0 PSI)
12 GPM
(11.8 PSI)
16 GPM
(20.9 PSI)
14 GPM
(16.0 PSI)
12 GPM
(11.8 PSI)
11 GPM
(9.9 PSI)
SINGLE
SPRINKLER
Minimum Flow
(b)
(Residual Pressure)
16 x 16
TEMPERATURE
RATING
°F
16 GPM
(20.9 PSI)
14 GPM
(16.0 PSI)
155
175
155
175
155
175
A
(c)
INCHES
4 to 12
4 to 12
4 to 12
4 to 12
4 to 6
4 to 6
B
FEET
6
6
7
7
8
8
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