Reliable Non-Ferrous Concealer Quick Start Manual

The Non-Ferrous Concealer™
Features
1. Completely Non-Ferrous material designed
for MRI rooms.
2. Laboratory tested in an MRI room environ-
ment.
3. Cup and skirt fabricated from brass.
4. Simple sturdy cover attachment.
5. Smooth aesthetic ceiling profile.
6. Available in bright brass, chrome and black
plated, and white or other color painted fin-
ishes.
7. Ordinary temperature rating.
8. Threaded cover plate (Solid or Perforated)
does not require clips or springs.
Listings and Approvals
Listed by Underwriters' Laboratories Inc. and UL certi-
fied for Canada (cULus).
Note: Approvals are light and ordinary hazard.
UL Listing Categories
Sprinklers, Automatic & Open
Quick Response Sprinkler
UL Guide Number
VNIV
Application
The Reliable Model F4FR-NF Non-
Ferrous Concealer™ is designed
specifically for MRI rooms. The sprin-
kler assembly was tested in a labo-
ratory with a magnetic field up to 6
Tesla. The highest clinical magnet
system commercially available today is 3 Tesla. There was
no recorded influence of the magnetic field on the sprinklers.
The test exposed the sprinklers to magnetic fields and field
gradients that would far exceed a standard peripheral MRI
room environment.
The Model F4FR-NF is a versatile, concealed, quick-re-
sponse standard spray pendent sprinkler. This sprinkler of-
fers an attractive appearance and ½" (13mm) cover adjust-
ment for ease of installation. The small diameter cover plate
is easily and positively attached. The cover plate is available,
Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Model F4FR-NF
Non-Ferrous Quick Response
Concealed Automatic Sprinkler
for MRI Type Applications
either solid or perforated, in a wide variety of colors and fin-
ishes to blend into the ceiling.
The Model F4FR-NF Non-Ferrous Concealer™ is designed
for use where aesthetic appearance is important. It is a quick-
response, concealed, standard spray pendent sprinkler in-
tended for use in accordance with NFPA 13. The 1/2" (13
mm) cover plate adjustment of the Non-Ferrous Concealer™
can eliminate the need for precise cutting of drop nipples.
The threaded cover plate assembly can be adjusted without
tools to fit accurately against the ceiling. The fire protection
system need not be shut down to adjust or remove the cover
plate assembly.
Product Description
The Model F4FR-NF Non-Ferrous Concealer™ is a quick-
response sprinkler that uses either a 135°F (57°C) or a 155°F
(68°C) 3mm diameter glass bulb in a standard style sprinkler
frame with a drop-down deflector. This assembly is recessed
into the ceiling and concealed by a flat cover plate. The cov-
er plate and sprinkler cup assemblies are attached using a
strong threaded engagement. This threaded engagement
provides ½" (13mm) of cover adjustment. The cover plate is
attached to the skirt using 135°F (57°C) ordinary temperature
classification solder. When the ceiling temperature rises, the
solder holding the cover plate fuses, thus releasing the plate
and exposing the sprinkler inside. The subsequent shatter-
ing of the sprinkler bulb opens the waterway and causes the
deflector to drop into position to distribute the discharging
water. Any secure engagement between the cover plate and
cup will assure that the drop-down deflector is properly lo-
cated below the ceiling.
Bulletin 002 G
Rev.