Reliable G5-80 User manual

103 Fairview Park Drive, Elmsford, New York 10523
Bulletin 034 Rev. D
Bulletin 034 Rev. D
1. Cover plate attachment (Plain or Perforated) with
¾ (19mm) assembly adjustment.
2. Smooth aesthetic ceiling profile.
3. Factory installed protective cap.
4. Available in Chrome and White as Standard Finish-
es. Special Application Finishes are also available.
5. Ordinary and Intermediate temperature rating.
1. Underwriters Laboratories Inc. and cULus -
Quick Response
 G5-80, G5-56 - Light Hazard and Ordinary
Hazard Occupancies
 G5-42 - Light Hazard Occupancies
 G5-28 - Light Hazard Occupancies
2. Factory Mutual Research Corp. (FM) -
Standard Response (See Page 3)
 G5-56 & G5-28 only.
 See the most recent FM Global Property
Loss Prevention Data Sheets for installation
and use guidelines.
3. Loss Prevention Council (LPCB, UK) -
Standard Response
 G5-56 - Light Hazard and Ordinary Hazard
Occupancies
4. VdS Schadenverhütung GmbH -
Standard Response
5. EC-Certificate of Conformity 0832-CPD-2062
The Reliable Model G5-80, G5-56, G5-42 and G5-28 are
the most versatile quick response concealed sprinklers avail-
able. It provides the best form of fire protection while offering
an attractive appearance and 3/4 (19mm) of cover adjust-
ment for ease of installation. The small diameter cover plate
assembly is easily attached and blends into the ceiling, con-
cealing the most dependable fire protection available, an au-
tomatic sprinkler system.
The Model G5-80, G5-56, G5-42 and G5-28 are designed
for use where aesthetic appearance is important. Offices, hos-
pitals, motels and restaurants are but a few of the applications
where it can be used.
The Model G5-80, G5-56, G5-42 and G5-28 are UL Listed
Quick Response Concealed sprinklers intended for use in
accordance with NFPA 13. FM Approves the G5-56 and the
G5-28 sprinkler as a standard response concealed sprinkler
intended for use in accordance with FM Loss Prevention Data
Sheet 2.0.
The Reliable Model G5-80, G5-56, G5-42 and G5-28 uses
a proven 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 ¾ (19mm) of
cover adjustment. The flat cover plate is attached to the skirt
using either 135°F (57°C) or 165°F (74°C) ordinary tempera-
ture classification solder.
When the ceiling temperature rises, the solder holding the
flat cover plate melts, the flat cover plate released thus expos-
ing 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.
Plain Cover Plate
Perforated Cover Plate

Do not install the G5-80, G5-56, G5-42 and G5-28 in ceilings
which have positive pressure in the space above.
 Cut a 258 inch (67mm) diameter hole is cut in the ceiling, the
sprinkler is easily installed with the Model FC Wrench. The
wrench has a socket drive which is inserted into the body of
the sprinkler. When installing a sprinkler the wrench is first
positioned into the sprinkler/cup assembly until the wrench
socket engages the body of the sprinkler. The sprinkler is
then tightened into the pipe fitting. When inserting or remov-
ing 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 ceil-
ing.
A protective cap is provided to protect the drop-down sprinkler
deflector from damage which could occur during construction
before 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.
The Model G5-80, G5-56, G5-42 and G5-28 should be in-
spected and the sprinkler system maintained in accordance
with NFPA 25. Do not clean sprinklers with soap and water, am-
monia or any other cleaning fluids. Remove any sprinkler that
has been painted (other than factory applied) or damaged in
any way. Concealed sprinklers cover plates can not be painted
in the field, after installation or have any other coating applied
other than the factory finish. A stock of spare sprinklers should
be maintained to allow quick replacement of damaged or oper-
ated sprinklers. Prior to installation, sprinklers should be main-
tained in the original cartons and packaging to minimize the
potential for damage to sprinklers that would cause improper
operation or non-operation.
Sprinklers, Automatic and
Open
Quick Response Sprinkler
VNIV
175 psi (12 bar)
100% Factory tested Hydrostatically to 500 psi (34.5 bar)
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
Model FC Sprinkler Wrench
1. Sprinkler Model
2. Nominal Orifice
3. Flat Cover Plate
Plain or Perforated
4. Flat Cover Plate
Assembly Finish
5. Inlet Type
Chrome
White Paint
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.
(2) For the perforated style cover-
plate, consult factory for avail-
ability on these and other cus-
tom finishes.
2.

G5-80 Non Adjustable ¾ (19mm) 17 32 (15mm) 8.0 115 ¾ NPT (R¾) 1 RA3412
G5-56 Non Adjustable ¾ (19mm) ½ (15mm) 5.6 80 ½ NPT (R½) 1,2,3,4,5 RA3415
G5-42 Non Adjustable ¾ (19mm) 716 (10mm) 4.2 60 ½ NPT (R½) 1 RA3413
G5-28 Non Adjustable ¾ (19mm) 38 (10mm) 2.8 40 ½ NPT (R½) 1,2 RA3411
For VdS Approval, temperature rating sprinkler 165°F/74°c and cover plate 135°F/57°C only!
FOR USE AS A REPLACEMENT OF MODEL G4A SPRINKLERS
1. Testing has shown that use of a nipple extension will not affect the listing of the sprinkler.
2. For RETROFIT installations, per which allows the use of nipples as the same pipe
thread size as the existing outlet when revamping existing systems.
3. Do not exceed 8-18 ft-lbs of torque during installation.
3.

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www.reliablesprinkler.com Internet Address
Manufactured by
Recycled
Paper
Revision lines indicate updated or new data.
EG. Printed in U.S.A. 06/14 P/N 9999970421
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.
 Automatic sprinklers
 Flush automatic sprinklers
 Recessed automatic sprinklers
 Concealed automatic sprinklers
 Adjustable automatic sprinklers
 Dry automatic sprinklers
 Intermediate level sprinklers
 Open sprinklers
 Spray nozzles
 Alarm valves
 Retarding chambers
 Dry pipe valves
 Accelerators for dry pipe valves
 Mechanical sprinkler alarms
 Electrical sprinkler alarm switches
 Water flow detectors
 Deluge valves
 Detector check valves
 Check valves
 Electrical system
 Sprinkler emergency cabinets
 Sprinkler wrenches
 Sprinkler escutcheons and guards
 Inspectors test connections
 Sight drains
 Ball drips and drum drips
 Control valve seals
 Air maintenance devices
 Air compressors
 Pressure gauges
 Identification signs
 Fire department connection
Reliable offers a wide selection of sprinkler components. Following are some of the many
precision-made Reliable products that guard life and property from fire around the clock.