Tyco Fire Product CENTRAL ELO-231 GB Instruction Manual

CENTRAL
Model ELO-231 GB &
ELO GB QR Dry Pendent
11.2 K-factor - Standard Coverage
Flush, Recessed or Extended Dry Pendent Glass Bulb Automatic Sprinkler
Tyco Fire Products --- www.centralsprinkler.com
451 North Cannon Avenue, Lansdale, Pennsylvania 19446 --- USA
Customer Service/Sales: Tel: (215) 362-0700 / Fax: (215) 362-5385
Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
General
Description
The Central Model ELO-231 GB, 11.2
K-factor Standard Response and Model
ELO GB QR, 11.2 K-factor Quick
Response, Standard Coverage Dry
Pendent Sprinklers are decorative glass
bulb automatic sprinklers designed for use
where pendent sprinklers are required
on dry pipe systems that are exposed
to freezing temperatures (e.g. sprinkler
drops from unheated portions of
buildings), or
where sprinklers and/or a portion of the
connecting piping may be exposed to
freezing temperatures (e.g. sprinkler
drops from wet systems into freezers),
or
where pendent sprinklers are used on
systems that are seasonably drained to
avoid freezing (e.g. vacation resort
areas).
The ELO Dry Pendent Sprinklers are
available in a wide range of operating
temperatures and order lengths. The
Model ELO-231 GB Dry Pendent
Sprinklers have a standard response
thermal sensitivity, while the Model ELO
GB QR Dry Pendent Sprinklers have a
fast response thermal sensitivity. The ELO
Dry Pendent Sprinklers are intended for
use in fire sprinkler systems designed in
accordance with the standard installation
rules recognized by the applicable Listing
or Approval agency (e.g., UL Listing is
based on NFPA 13 requirements). They
produce a hemispherical water discharge
pattern below the deflector.
The Recessed, Flush, and Extended
Escutcheons for the ELO Dry Pendent
Sprinklers are separable two-piece
designs which allow installation of the
sprinklers and pressure testing of the fire
ELO Dry Pendent
protection system prior to installation of a
suspended ceiling. They also permit
removal of suspended ceiling panels
without having to first shut down the fire
protection system and remove the
sprinklers.
Operation: When the ELO Dry Pendent
Sprinkler is in service, water is prevented
from entering the assembly by the Plunger
Assembly, a Plug & O-ring in the Inlet
(Spool) of the Sprinkler. The glass Bulb
contains a fluid which expands when
exposed to heat. When the rated
temperature is reached, the fluid expands
sufficiently to shatter the glass Bulb, and
the Bulb Seat is released. The GuideTube
drops, allowing the Plug & O-ring to
withdraw from the Inlet, which then allows
the sprinkler to activate and flow water.
WARNING
The ELO Dry Pendent Sprinklers
described herein must be installed and
maintained in compliance with this
document, as well as with the applicable
standards of the National Fire Protection
Association, in addition to the standards of
any other authorities having jurisdiction.
Failure to do so may impair the integrity of
these devices.
The owner is responsible for maintaining
their fire protection system and devices in
proper operating condition. The installing
contractor or sprinkler manufacturer
should be contacted relative to any
questions.
The ELO Dry Pendent Sprinklers must
only be installed in fittings that meet the
requirements of the Design Criteria
section.
3-01
O P T
I M A
ELO-231 GB &
ELO GB QR
Dry Pendent
Standard Spray
Sprinklers
No. 5-11.0