EXTENDED COVERAGE LIGHT HAZARD SPRINKLERS
PENDENT & RECESSED PENDENT, QUICK & STANDARD RESPONSE
MODEL F890 DESIGNER, 3 mm BULB TYPE, K=8.0
GENERAL DESCRIPTION
The 8.0 K-Factor (17/32 inch orifice),
Model
F890 Designer Quick and
Standard Response Extended Cover-
age Light Hazard (ECLH) Pendent and
Recessed Pendent Sprinklers (Ref.
Figure A) are automatic sprinklers of
the frangible bulb type. They are in-
tended for use in automatic sprinkler
systems designed in accordance with
standard installation rules (e.g., NFPA
13) for the protection of light hazards
up to a maximum coverage area of 400
ft
2
(37,2 m
2
), as compared to the maxi-
mum coverage area of 225 ft
2
(20,9
m
2
) for standard coverage sprinklers.
The recessed version of the F890
ECLH Sprinkler is obtained by combin-
ing the pendent sprinkler with the
Model F705 Recessed Escutcheon
(Ref. Figures A and B). The F705 Re-
cessed Escutcheon provides 1/4 inch
(6,4 mm) of recessed adjustment or up
to 1/2 inch (12,7 mm) of adjustment
from the flush pendent position. The
F705 is a separable two-piece design
which allows installation of the sprin-
klers and pressure testing of the fire
protection system, prior to ceiling con-
struction and/or application of a finish
coat to the ceiling. They also permit
refinishing of a ceiling surface without
having to first shut down the fire pro-
tection system and remove sprinklers.
The adjustment provided by the F705
substantially reduces the accuracy to
which the fixed pipe drops to the sprin-
klers must be cut. Also, the Closure
has a 1/2 inch (12,7 mm) wide flange
which provides ample clearance for
covering the mounting hole.
APPROVALS AND STANDARDS
Laboratory listings and approvals for
the 8.0 K-Factor, Model
F890 De-
signer Quick and Standard Response
Extended
Coverage
Light
Hazard
(ECLH) Pendent and Recessed Pen-
dent Sprinklers are given in Table A.
The laboratory listings and approvals
only apply to the service conditions
indicated in the Technical Data and
Design Criteria sections.
WARNING
The Model F890 Designer Quick and
Standard Response Extended Cover-
age Light Hazard (ECLH) Pendent
and Recessed Pendent Sprinklers de-
scribed herein must be installed and
maintained in compliance with this
document, as well as with the appli-
cable standards of the National Fire
Protection Association, in addition to
the standards of any other authorities
Printed in U.S.A. 3-01
TD594
FIGURE A
8.0 K-FACTOR MODEL F890 (SIN G1890) QUICK AND STANDARD RESPONSE
EXTENDED COVERAGE LIGHT HAZARD PENDENT AND RECESSED PENDENT SPRINKLERS
1 - Frame
2 - Button
3 - Gasketed
Spring
Plate
4 - Bulb
5 - Compression
Screw
6 - Deflector*
*
Temperature rating is indicated on deflector.
** Pipe thread connections per ISO 7/1 can be provided on special request.
TYCO FIRE PRODUCTS
, 7071 S. 13th Street, Suite 103 Oak Creek, WI 53154 — www.gemsprinkler.com
Customer Service/Sales:
Tel: (877) 436-8926 / Fax: (877) 866-9250
Technical Services:
Tel: (800) 381-9312 / Fax: (800) 791-5500
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