Installation
Do not install The Non-Ferrous Concealer
®
in ceilings
which have positive pressure in the space above. In addition,
inspect all sprinklers after installation to ensure that both the
gap between the cover plate and ceiling and the four (4) slots
in the cup are open and free from any air flow impediment.
After a 2
5
8
²
diameter hole is cut in the ceiling, the sprinkler
is to be installed with the Model G4 Wrench. When installing a
sprinkler, the wrench is first positioned into the sprinkler/cup
assembly until two wrench tangs fully engage drive slots in
the top of the cup (there are two pairs of drive slots in the cup).
The sprinkler is then tightened into the pipe fitting to a torque
of 15-20 ft-lbs. When inserting or removing the wrench from
the sprinkler/cup assembly care should be taken to prevent
damage to the sprinkler. DO NOT WRENCH ON ANY OTHER
PART OF THE SPRINKLER/CUP ASSEMBLY.
Maintenance
The Model F4FR-NF should be inspected quarterly and
the sprinkler system maintained in accordance with NFPA
25. Do not clean sprinklers with soap and water, ammonia
or any other cleaning fluids. Remove any sprinkler that has
been painted ( other than factory applied) or damaged in
any way. A stock of spare sprinklers should be maintained
to allow quick replacement of damaged or operated sprin-
klers. Prior to installation, sprinklers should be maintained in
the original cartons and packaging to minimize the potential
for damage to sprinklers that would cause improper opera-
tion or non-operation.
Engineering Specification
Sprinklers shall be cULus Listed, non-ferrous, quick re-
sponse concealed pendent sprinklers specifically designed
and tested for use in MRI type applications, and able to with-
stand exposure to a magnetic field of up to 6 Tesla. The con-
cealed sprinkler frame and cover plate assembly shall be of
all brass construction, including the drop-down deflector
and sprinkler cup assembly. The water seal shall consist of
a Teflon film coated Belleville spring washer and bulb/ma-
chined cup assembly utilizing a 3 mm glass bulb thermal el-
ement. Concealed sprinklers shall have a ½” NPT with a
nominal K-factor of 5.6 (80.0). Temperature rating of both
The equipment presented in this bulletin is to be installed in accordance with the latest pertinent Standards of the National Fire Protection Association, Factory Mutual Research
Corporation, or other similar organizations and also with the provisions of governmental codes or ordinances whenever applicable.
ProductsmanufacturedanddistributedbyReliablehavebeenprotectinglifeandpropertyforover80years,andareinstalledandservicedbythemosthighlyqualifiedandreputa-
ble sprinkler contractors located throughout the United States, Canada and foreign countries.
The Reliable Automatic Sprinkler Co., Inc.
(800) 431-1588
Sales Offices
(800) 848-6051
Sales Fax
(914) 829-2042
Corporate Offices
www.reliablesprinkler.com
Internet Address
Manufactured by
Ordering Information
Specify
1. Sprinkler Model
2. Cover Plate Finish
1
2
²
NPT (R
1
2
) inlet - Figure 1
Installation Wrench
Model G4 Sprinkler Wrench
Revision lines indicate updated or new data
.
E.G. Printed in U.S.A. 9/06
P/N 9999970241
Classification
Sprinkler
Cover Plate
Max. Ceiling
Temp.
Ordinary
135°F/57°C
155
°
F/68
°
C
135°/57°C
100°F/38°C
Temperatures Ratings
Installation Data
Total
Adjustment
Nominal
Orifice
Nominal
K Factor
Thread
Approval
Sprinkler
Identification
Number (SIN)
US
Metric
1
2
²
(13mm)
1
2
²
(15mm)
5.6
80
1
2
²
NPT (R½)
cULus
RA0212
(1)
Other colors and finishes are
available. Consult factory for details.
Note:
Paint or any other
coatings applied over the
factory finish will void all
approvals and warranties.
Standard Finishes:
Bronze
Bright Brass Plated
Chrome Plated
Black Plated
White
(1)
:
Recycled
Paper
the sprinkler and the cover plate shall be 135
°
F (57
°
C).
Sprinkler cover plate shall be capable of providing ½” of ad-
justment and shall attach to the sprinkler cup by a strong
threaded engagement. The sprinkler cup shall be rein-
forced with an attached brass wrenching plate to protect the
sprinkler cup from damage during installation. Concealed
sprinklers shall be UL Listed for Light Hazard and Ordinary
Hazard occupancies. Standard cover finish to be: [Bronze]
[Chrome Plated] [White] [Bright Brass Plated] [Black Plated]
[Specialty – specify]. Quick Response Concealed Pendent
Sprinklers shall be the Reliable Non-Ferrous Concealer,
Model F4FR-NF, SIN RA0212.
