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Central Sprinkler Company

451 N. Cannon Avenue

Lansdale, PA 19446

Optima™, Omega™ & Glass Bulb Residential Sprinklers

I.  General

Central Sprinkler Company's Residential Sprinklers are
fast response automatic fire sprinklers.  They are to be
used only in wet-pipe sprinkler systems in occupancies
where residential sprinklers are required or permitted by
NFPA 13, NFPA 13R and NFPA 13D.

II.  Design

The design criteria for Residential Sprinklers begins with
Underwriter’s Laboratories Publication UL 1626 - “Resi-
dential Sprinklers”.  All Central residential sprinklers are
Listed under UL 1626 with specific published spacings,
flows and pressures for each model of residential sprinkler.
The design criteria for residential sprinklers contained in
the current NFPA Standards must be followed except as
modified by the individual UL 1626 listing information
contained in the catalog information sheets and this
installation guide.  The approval of all residential sprinkler
designs and installations must be made by the 

Authority

Having Jurisdiction for compliance with all governmental
codes and standards.

III.  Spacing

When spacing Residential Sprinklers, the following criteria
must be verified:

A.  Spacing

A Residential Sprinkler is Listed by Underwriter’s
Laboratories, Inc. for various maximum spacings in
accordance with minimum flows and pressures.  An
example is the multiple head calculation of a Model R-1M.
At 9 gpm each, these heads will protect a 14' x 14' area up
to 7' from a wall.  While at 16 gpm each, the same heads
will protect a 20' x 20' area up to 10' from a wall.  It is
critical to understand the intended area of coverage while
using this guide.  Always remember that the spacing of
sprinklers under sloped ceilings is measured along the
slope when determining distance from walls or between
sprinklers.

B.  Location

Sensitivity to heat is a key to Residential Sprinklers.
Residential Sprinklers should not be located more than
3'-0" measured vertically from any peaked ceiling.

C.  Cold-Solder

The minimum distance between Residential Sprinklers, per
NFPA 13D is 8'-0".  This requirement is based on smooth
flat ceiling conditions.  Sloped ceilings are cause for
concern for cold-solder since the elevation of one sprinkler
may be higher than another, causing a different distribution
pattern than that of flat ceiling conditions.  Figures 1, 2, 3,
4, 5, 6 and 12 reference the minimum acceptable distance
between sprinklers under various conditions.  One solution
to cold-solder is to stagger the sprinklers so that the
distance between two heads is increased.

D.  Obstructions

Figures 8, 9, 10, 11 and 13 answer the question, “if the
discharge pattern of a sprinkler at a given area of
protection will be acceptable or obstructed”.  If the
obstruction is “acceptable”, then the appropriate spacing is
allowed.  If it is “obstructed”, then the obstruction is to be
considered the maximum distance away from the sprinkler
and additional heads beyond the obstruction will be
necessary.  Omega style sprinkler deflectors drop a 1/2"
and the ROC's deflector drops approximately 1".  Take this
into account as it may help to reduce obstructions.

E.  Proximity to a Heat Source

The heat source informatin is changing slightly as NFPA
has provided guidence.  Take note of the intermediate
temperature sprinkler as it can provide an advantage in
locating sprinklers close to heat sources.  Figures 14, 15,
16, 17, 18 and 19 show the area of concern for location of
Residential Sprinklers.  Sprinklers must be located outside
of the shaded zone to prevent premature activation due to
elevated temperatures.

IV Hydraulics

Hydraulic calculations shall be done in accordance with
the appropriate NFPA Standard.  The minimum flow and
pressure required for all Central's Residential Sprinklers is
Listed by Underwriter’s Laboratories, Inc. and shown in
each individual data sheet.  For pendents with unequal
sided dimensions, use the larger of the dimensions and
always round up.  For example, 14'-2" x 11'-6" would be

6-96

Residential Sprinkler

Design & Installation Guide

OBSOLETE

Содержание CENTRAL Omega

Страница 1: ...ated more than 3 0 measured vertically from any peaked ceiling C Cold Solder The minimum distance between Residential Sprinklers per NFPA 13D is 8 0 This requirement is based on smooth flat ceiling co...

Страница 2: ...on for sidewall sprinklers Step 2 Use only a non hardening pipe joint compound or Teflon tape Apply only to the male threads Step 3 Hand tighten the sprinkler into the fitting Use the appropriate Cent...

Страница 3: ...14 or less 7 or less 14 10 6 11 6 5 Pendent 16 8 16 13 8 12 7 8 18 9 19 19 5 14 10 6 GBR 7 16 4 3 14 or less 7 or less 14 10 6 11 6 5 Recessed Pendent 16 8 16 13 8 12 7 8 18 9 19 19 5 16 13 8 GBR 7 16...

Страница 4: ...7 34 31 29 27 25 23 22 21 19 18 18 17 5 79 68 59 51 45 40 36 32 29 27 24 23 21 20 18 17 16 16 15 14 4 76 63 63 45 39 34 30 27 24 22 20 18 17 16 15 14 13 13 12 11 3 72 56 45 37 31 27 23 21 18 17 15 14...

Страница 5: ...ated for C Maximum of 3 0 vertically from the peak F Acceptable for angles 0 to 60 G Minimum of 4 for maximum refer to A and measure along slope The minimum distance between sprinklers on opposing slo...

Страница 6: ...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 6...

Страница 7: ...he 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 Fo...

Страница 8: ...peak D Refer to Figure 8 F Acceptable for angles 0 to 60 A D C A Figure 8 Obstruction to Discharge by Intersect ing Sloped Ceiling If D is Obstructed per Figure 8 Graph then D is to be considered the...

Страница 9: ...0 D in feet F in degrees Obstructed Acceptable 10 9 8 6 5 4 3 2 7 20 x 20 18 x 18 16 x 16 14 x 14 12 x 12 Figure 10 Obstruction to Discharge by an Oppos ing Sloped Ceiling If D is Obstructed per Figur...

Страница 10: ...s to Heat Sources Sprinklers installed too close to heat sources can operate prematurely and so must be placed a sufficient distance away from the heat source Common heat sources in residential occupa...

Страница 11: ...aced at least 3 6 ordinary temp 1 0 intermediate temp laterally from the surfaces of a stove Sprinklers must be spaced at least 1 6 ordinary temp 0 9 intermediate temp laterally from the surfaces of k...

Страница 12: ...Sprinkler Guide Figure Side of open or Recessed Fireplace 36 12 Figure 14 15 Front of Recessed Fireplace 84 36 Figure 15 Coal or Wood Burning Stove 42 12 Figure 17 Kitchen Range 18 9 Figure 18 Wall Ov...

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