7
6-96
Optima™, Omega™ & Glass Bulb Residential Sprinkler
Design and Installation Guide
Figure 5
Sprinkler Location on Coffered Ceiling
First verify that “D” is “Acceptable” or “Obstructed” per
Figure 9. If “Acceptable”, Figure 5 applies. If “Obstructed”,
additional sprinklers will be necessary to protect the flat
ceiling area. The minimum distance between sprinklers is
measured horizontally. Staggering sprinklers will help
maintain minimum horizontal distances in difficult situa-
tions. Dimensions “A” and “B” are measured along the
slope. For angles greater than 60
°
, verify with Central's
Technical Services Department.
Figure 6
Minimum Distance Between Sprinklers
on Intersecting Ceilings
First verify that “D” is “Acceptable” or “Obstructed” per
Figure 8 for the horizontal ceiling sprinkler and Figure 9 for
the sloped ceiling sprinkler. If “Acceptable”, Figure 6
applies. If “Obstructed”, per Figure 8 or 9, then “D” is to be
considered the area of coverage. The minimum distance
between sprinklers is measured horizontally. Staggering
sprinklers will help maintain maximum horizontal distances
in difficult situations. Dimension “B” is measured along the
slope. For angles greater than 60
°
, verify with Central's
Technical Services Department.
B — See “E” for minimum spacing. Maximum Listed
spacing that the sprinkler was calculated for.
D — Distance to intersecting ceiling.
E — NFPA minimum of 8'-0" (when minimum of 8' cannot
be obtained due to “B”, a baffle must be installed
between these sprinklers to obstruct the discharge
and prevent cold-solder) see “B” for maximum.
F — Acceptable for angles 0
°
to 60
°
.
A — NFPA minimum of 4", maximum
1
⁄
2
of the Listed
spacing that the sprinkler was calculated for.
B — See “E” for minimum spacing. Maximum Listed
spacing that the sprinkler was calculated for.
C — Maximum 3'-0" vertically from the peak.
D — Refer to Figure 8.
E — NFPA minimum of 8'-0" (when minimum of 8'-0"
cannot be obtained due to “B”, a baffle must be
installed between these sprinklers to obstruct the
discharge and prevent cold-solder). See “B” for
maximum.
F — Acceptable for angles 0
°
to 60
°
.
A
E
D
C
D
A
B
D
E
D
F
B
OBSOLETE
