Reliable Concealer G4A User manual

Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 154 Rev. J
Bulletin 154 Rev. J
Model G4A
Quick Response
Adjustable Concealed
Automatic Sprinkler
The Concealer™
UL Quick Response
FM Standard Response
Concealed Sprinkler With 1½” (38mm)
Adjustment Model G4A, K4.2 and K5.6
Sprinkler types
For non adjustable K5.6 and K4.2 type
sprinklers refer to Bulletin 034 for Technical
Specification and Approvals
Features
1. Cover plate attachment (Plain or Perforated)
with ½” (13mm) assembly adjustment.
2. Smooth aesthetic ceiling profile.
3. Factory installed protective cap.
4. Available in brass, chrome or black plated
and white painted finishes.
5. Ordinary temperature rating.
6. Multiple orifices for design flexibility.
Approvals & Listings
1. Underwriters Labortories, Inc. (UL) -
Quick Response
2. Underwriters Laboratories of Canada (ULC) -
Quick Response
3. Factory Mutual Research Corp. (FM) -
Standard Response
• Light Hazard Occupanicies-
No Limitations
• Ordinary Hazard Occupancies
Groups 1 & 2 Wet Systems Only
4. NYC MEA 258-93-E - Quick Response
Application
The Reliable Model G4A Adjustable Concealer™ is the most
versatile quick response concealed sprinkler available. It pro-
vides the best form of fire protection while offering an attractive
appearance and ½” (13mm) of cover adjustment in addition to
1½” inlet Adjustable for ease of installation. The small diameter
cover plate assembly is easily attached and blends into the ceil-
ing, concealing the most dependable fire protection available,
an automatic sprinkler system.
The Model G4A Adjustable Concealer™ is designed for use
where aesthetic appearance is important. Offices, hospitals,
motels and restaurants are but a few of the applications where it
can be used. It is available in different orifice sizes allowing the
designer to optimize system performance, thereby achieving a
very efficient installation.
The Model G4A Adjustable Concealer™ is a UL Listed Quick
Response Concealed sprinkler intended for use in accordance
with NFPA 13. FM Approves this sprinkler as a standard re-
sponse concealed sprinkler intended for use in accordance
with FM Loss Prevention Data Sheet 2.0.
Product Description
The Reliable Model G4A Adjustable Concealer™ uses a prov-
en quick response fusible element 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 assembly.
The threaded engagement provides ½” (13mm) of cover ad-
justment. The flat cover plate is attached to the skirt using either
135°F (57°C) or 165°F (74°C) ordinary temperature classifica-
tion solder.
When the ceiling temperature rises, the solder holding the
flat cover plate melts, the flat cover plate released thus ex-
posing the sprinkler inside to the rising ambient temperature.
The subsequent fusing of the element opens the waterway
and causes the deflector to distribute the water. Any secure
engagement between the cover plate and cup will assure that
the drop-down deflector is properly located below the ceiling.

Reliable Automatic Sprinkler Co., Inc.
[phone] Sales Offices
[phone] Sales Fax
[phone] Corporate Offices
www.reliablesprinkler.com Internet Address
Manufactured by
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Revision lines indicate updated or new data.
EG. Printed in U.S.A. 04/15 P/N 9999970150
The equipment presented in this bulletin is to be installed in accordance with the latest published 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.
Products manufactured and distributed by Reliable have been protecting life and property for over 90 years, and are installed and serviced by the most highly
qualified and reputable sprinkler contractors located throughout the United States, Canada and foreign countries.
Installation
Do not install the G4A Adjustable Concealer™ in ceilings which
have positive pressure in the space above.
• Cut a 25/8 inch (67mm) diameter hole is cut in the ceiling, the
sprinkler is easily installed with the Model G4 Wrench. The
wrench has drive tangs which insert into the cup slots. When in-
stalling a sprinkler the wrench is first positioned into the sprinkler/
cup assembly until the wrench tangs engage the drive slots in
the top of the cup (there are two sets of drive slots in the cup).
The sprinkler is then tightened into the pipe fitting. When insert-
ing 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. Install the cover plate by hand turning the
cover in the clockwise direction until it is tight against the ceiling.
A protective cap is provided to protect the drop-down sprinkler
deflector from damage which could occur during construction be-
fore the cover plate is installed. The cap is factory installed inside
the sprinkler cup. Remove cap to install sprinkler, then re-install
cap until the cover plate is installed.
Maintenance
The Model G4A Adjustable Concealer™ should be inspected
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 dam-
aged or operated sprinklers. 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.
(2) For the perforated style cov-
erplate, consult factory for
availability on these and oth-
er custom finishes.
UL Listing Category
Sprinklers, Automatic and
Open
Quick Response Sprinkler
UL Guide Number
VNIV
Temperature Rating
Classification Sprinkler Cover
Plate
Max. Ambi-
ent Temp.
Ordinary 165°F/74°C 135°F/57°C 100°F/38°C
Intermediate 212°F/100°C 165°F/74°C 150°F/66°C
Technical Data
Sprinkler Inlet Total
Adjustment
Nominal
Orifice
Nominal K Factor Thread Approvals Sprinkler
Identifcation (SIN)
US Metric
Adjustable 1½” (38mm) ½” (13mm) 5.6 80 1” NPT Male or Female 1,2,3,4 R5418
Adjustable 1½” (38mm) 7 /
16” (11mm) 4.2 60 1” NPT Male or Female 1,2,4 R5413
Model G4 Sprinkler
Wrench
Ordering Information
1. Sprinkler Model
2. Nominal Orifice
3. Flat Cover Plate
Assembly Finish
4. Inlet Type
Cover Plate Finishes(1)
Standard Finishes
Chrome
White Paint
Special Application
Finishes(2)
Bright Brass
Finished Bronze
Black Plating
Black Paint
Off White
Satin Chrome
(1) Other finishes and colors are
available on special order.
Consult factory for details.
Coverplate custom paint is
semi-gloss, unless specified
otherwise.
Fig. 2 - 1” NPT Female Adjustable InletFig. 1 - 1” NPT Male-Adjustable Inlet