tional sprinkler protection is provided for the area be-
low the overhang/soffit.
The Mizar S215 must NOT be located
1. Along a wall/partition having a recessed range oven,
countertop, or alcove.
2. Along a wall/partition having an adjoining wood or coal
burning stove.
3. Along a wall/partition containing a fireplace or wall oven.
Operational Sensitivity Criteria.
The Mizar S215 must
only be installed
1. Beneath level ceilings.
2. Beneath solid ceilings having a smooth or textured sur-
face.
3. With a deflector-to-wall surface distance of 1-1/2 to
6 inches or a deflector-to soffit surface distance of 1-1/2
to 3 inches, unless the #2084 Recessed Escutcheon is
being utilized as shown in Figure 2.
4. With a deflector-to-ceiling distance per Table A.
5. At least 4 inches away from an inside or outside corner.
The Mizar S215 must NOT be used
1. Beneath soffits or overhangs, unless they are only pro-
viding protection for the area underneath the soffit/over-
hang and additional sprinkler protection is provided for
the area in front of the soffit/overhang.
2. Above or below open-gridded type suspended ceilings.
3. With beams, joists, ducts, or other continuous obstruc-
tions located within the sprinkler coverage areas.
Beams, joists, or ducts may be located with their centerli-
nes along the boundaries separating adjacent sprinkler
coverage areas.
Cold Soldering Criteria.
With reference to Table A, the
Mizar S215 must be located such that
1. The minimum lateral distance “C” between adjacent
sprinklers is 8 feet.
2. The minimum distance “D” between sprinklers located
opposite or with their waterway centerlines at 90° to
each other is 14 feet, except where a portion of the
dwelling structure or a partition will shield the spray of
one sprinkler from the other.
Heat Source Criteria.
Refer to NFPA 13D or NFPA 13R
for the requirements relating to preventing the possible re-
lease of a sprinkler heat responsive element (Bulb), due
to exposure to heat sources other than abnormal fire.
STAR SPRINKLER
Page 4
1-3.3.20
NOTES:
1. For a given position within the coverage area, ceiling mounted
obstructions must not hang below the elevation dimension
given in the graph.
2. Elevation dimensions are with respect to the top of the
Deflector Hat (Ref. Figure 1), where positive (+) dimensions
are above the Deflector Hat and negative (-) dimensions are
below. (Reference: the Deflector Hat is 5/16" above the
sprinkler centerline of waterway.)
FIGURE 3
ALLOWABLE ELEVATION FOR CEILING MOUNTED
OBSTRUCTIONS SUCH AS HEATING OR
AIR CONDITIONING DIFFUSER, OVERHANGS, AND
LIGHT FIXTURES
OBSOLETE