Reliable DH80 User manual

Bulletin 003 Rev.E
Bulletin 003 Rev.E
The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford NY 10523
Model DH80
Model DH80 Recessed
Model DH80 Concealed
Quick Response,
Extended Coverage Sprinkler
DH80 Concealed
with SWC cover plate
DH80 FP Recessed
DH80
For coverages up to 28 feet wide and
14 feet long(1). 250 psi (17,2 bar) rated.
Features:
1. Coverage for long and narrow spaces such
as hallways, corridors, decks and rooms
up to 28 feet wide and 14 feet long.(1)
2. Deflector to ceiling dimensions are:
4²(102mm) min. to 12²(305mm) max.
3. Minimum spacing between sprinklers
12 feet (3,6m).
4. UL Listed for light hazard applications.
5. 8.0 K Factor.
6. Sprinkler is approved for
250 psi (17,2 bar) applications.
7. Quick response performance.
8. ½²(13mm) adjustment of escutcheon
and cover.
9. Tamper resistant cover plate can prevent
the sprinkler from being used for unin-
tended purposes. No exposed thermal ele-
ment with the concealed version.
10. Push-on/thread-off sturdy convenient
escutcheon for recessed and cover for
concealed.
11. Factory assembled sprinkler & cup,
shipped complete with protective cap for
concealed and FP recessed versions.
12. Sprinkler & cup assembly and escutcheon
or cover are separately packaged.
13. Cover finishes available in standard white
paint, special bronze, black paint or flat
white paint.
14. Polyester Coated Corrosion Resistant
Sprinklers (cULus).
Approval Organizations
1. Listed by Underwriters Laboratories Inc. and
UL certified for Canada (cULus)
2. NYC MEA 258-93-E
Patents: US patent number 6,374,919
SWC Cover Plate
US Patent Number 6, 920, 937, B2
DH80 Sprinkler
Products Description
The Model DH80 family of sprinklers are quick response
extended coverage sidewall sprinklers for use in light hazard
applications. The Model DH80 with SWC cover plate is a
concealed sprinkler that uses Reliable’s push on/thread off
sidewall cover. This sprinkler has the cup factory mounted and
is shipped with a protective cap that protects the 3mm
frangible glass bulb during shipping and post installation
finishing operations. The DH80 can be combined in the field
with the FP or F2 Escutcheon to make a recessed sprinkler.
The SWC cover plate, FP and F2 recessed escutcheons have
½” adjustment. The SWC cover plate is attached with
135-degree solder. In the event of a fire the rising ambient
temperature melts the solder and the cover plate is ejected
away by springs exposing the 3mm frangible glass bulb. The
use of a 3mm bulb allows quick response which enables the
sprinkler to apply water to a fire sooner than standard
response sprinkles of the same temperature rating.
Application
The Model DH80 is a horizontal sidewall sprinkler intended
for installation in light hazard occupancies in accordance with
NFPA 13. These sprinklers are designed to provide fire
protection in long and narrow spaces such as hallways,
corridors, decks and rooms up to 28 feet (8,5m) wide and 14
feet (4,3m) long. They are rated for 250 psi (17,2 bar) and can
be mounted between 4 and 12 inches (102 and 305mm)
down from the ceiling.
DH80 F2 Recessed
(1) See Figure 3.

Approval Type:
•Quick Response, Extended Coverage.
•Approved for installation in accordance with NFPA 13
for light hazard occupancies.
*DuPont Registered Trademark
K Factor
Thread
Size
Temperature Rating
Maximum
Ambient
Temperature
Sprinkler
Identification
Number
(SIN)US Metric Sprinkler
SWC
Cover
8.0 115,3 34
²
155°F
(68°C)
135°F
(57°C)
135°F
(57°C)
100°F
(38°C) RA0362
Technical Data(1):
(1) Minimum spacing of 12 feet (3,7m).
Installation
DH80 Recessed, FP Escutcheon
To install the DH80 with the FP Escutcheon as a recessed
sprinkler cut a 2 58
²diameter hole in the wall as shown in
Figure1. Remove temporarily the plastic protective cap, then
use the GFR1 wrench to tighten the sprinkler until secured in
the sprinkler fitting. NOTE: The GFR1 wrench has a notch in
it to accommodate the deflector top. This wrench can only
be inserted one way. Care must be taken not to damage the
deflector during tightening. Apply a Teflon* based sealant
to the sprinkler threads before installing in the fitting. When
inserting or removing the wrench from the sprinkler cup,
care must be taken to prevent damage to the sprinkler.
Wrench only on the square boss. DO NOT WRENCH ON
ANY OTHER PART OF THE SPRINKLER. It is
recommended that the sprinkler be protected during
plastering and painting operations by reinstalling the
protective cap P/N 6802710003. Installation is completed
by removing the protective cap and inserting the push-on
escutcheon. Turn clockwise to adjust the escutcheon
against the wall.
DH80 Recessed, F2 Escutcheon
To install the DH80 with the F2 Escutcheon as a recessed
sprinkler cut a 2 ¼” diameter hole in the wall as shown in
Figure 2. Thread the DH80 into the collar hand tight. Apply a
Teflon* based sealant to the sprinkler threads and install in
the fitting. Wrench only on the square boss. NOTE: The
GFR1 wrench has a notch in it to accommodate the deflector
top. This wrench can only be inserted one way. When
inserting or removing the wrench from the sprinkler cup care
must be taken to prevent damage to the sprinkler. DO NOT
WRENCH ON ANY OTHER PART OF THE SPRINKLER. It is
recommended that the sprinkler be protected during
plastering and painting operations by using the protective
cap P/N 6999991009. These must be ordered separately.
Installation is completed by removing the protective cap and
inserting the F2 Escutcheon over the collar.
DH80 with SWC Cover Plate Concealed
To install the sprinkler, cut a 2 58
²diameter hole into the wall
as shown in Figure1. A Teflon* based thread sealant should
be applied to the sprinkler threads only. Remove the
protective cap (P/N 6802710003) and then position the
GFR1 wrench into the sprinkler/cup assembly until the
wrench engages the flats of the square boss. Then tighten
the sprinkler into the pipe fitting. 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. The
protective caps should be reinstalled for protection during
plastering and painting. Remove caps only when covers are
being installed. The cover assembly is then pushed onto the
cup. Cover assemblies provide ½²(13mm) of adjustment.
Final adjustment is made by turning the cover clockwise until
the skirt flange makes full contact with the wall surface. Cover
removal requires turning in the counter- clockwise direction.
Concealed cover/cup assemblies are listed only for use
with specific sprinklers. The use of any other concealed
cover/cup assembly with the Model DH80 Horizontal Sidewall
Maintenance
Model DH80 should be inspected quarterly and the
sprinkler maintained in accordance with NFPA 25. Do not
clean sprinklers with soap and water, ammonia or any other
cleaning fluids. Remove dust by using a soft brush or gentle
vacuuming. Remove any sprinkler/cover assembly, which 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 sprinklers. Prior to
installation, sprinklers should be maintained in their original
cartons and packaging until used to minimize the potential for
damage to sprinklers that would cause improper operation or
non-operation.
2.
Coverage Area
Flow Rate
gpm (L/min)
Pressure
psi (bar)
Maximum Coverage Area
Width x Length
ftxft(mxm)
40 (151,4) 25 (1,7) 28 x 14 (8,5 x 4,3)
Sprinkler or the use of the concealed cover assembly on any
sprinkler with which it is not specifically listed will void all
guarantees, warranties, listings and approvals.
Note: DH80 and DH80 Recessed Sprinklers have orange
bulb protectors to minimize bulb damage during shipping,
handling, and installation. REMOVE THIS PROTECTION AT
THE TIME THE SPRINKLER SYSTEM IS PLACED IN SERVICE
FOR FIRE PROTECTION. Removal of the protectors before
this time may leave the bulb vulnerable to damage. RASCO
wrenches are designed to install sprinklers when covers are in
place. REMOVE PROTECTORS BY UNDOING THE CLASP
BY HAND. DO NOT USE TOOLS TO REMOVE THE
PROTECTORS.

3.
Figure 1.
(1) Other colors and finishes are available. Consult factory for details.
(2) cULus Corrosion Resistant Sprinklers.
Note: Paint or any other coatings applied over the factory finish
will void all approvals and warranties.
Standard Finishes(1)
Sprinkler FP Escutcheon F2 Escutcheon Cover Plate
White Polyester(2)/
Chrome /
Bronze
White / Chrome White / Chrome /
Bright Brass White
Finishes(1)
UL Listing Category
Sprinklers, Automatic
and Open.
Quick Response Sprinklers.
Installation Wrench
Model GFR1 Sprinkler Wrench
Installation Aid
For concealed, a protective plastic
cap is included for use during
installation.
Escutcheon Data:
FP cup/escutcheon
assembly - 12
²(13mm) adjustment
F2 - 12
²(13mm) adjustment
Ordering Information
Specify:
•DH80
- Sprinkler Finish
•DH80 Recessed
-Sprinkler Finish
FP or F2 Escutcheon
-Escutcheon Finish
•SWC Concealed
-Cover-Plate Finish
•Protective cap for
use with F2
escutcheons
Model DH80 Quick Response
Extended Coverage Horizontal
Sidewall Sprinkler Specification
Sprinklers shall be a [quick response – cULus Listed]
[quick response - New York City MEA Approved (258-93-E)]
extended coverage horizontal sidewall sprinkler for light
hazard occupancies. Sprinklers to be of bronze frame
construction with a special deflector capable of providing a
discharge over a coverage area of 28 ft. (8,5m) wide, and 14
ft. (4,3m) long horizontal throw. Water seal assembly shall
consist of a Teflon-coated Belleville spring washer and
machined brass cup with 3 mm glass bulb containing no
plastic parts. Installation shall permit sprinkler deflectors to be
positioned 4“ (102mm) to 12” (305mm) below the ceiling.
Sprinklers shall have a nominal K-factor of 8.0 (115.3), and ¾”
NPT thread. Sprinkler temperature rating shall be [135°F(57°
C)][155°F(68°C)]. Rated working pressure shall be 250 psi
(17.2 bar). Standard finish: [white][chrome][bronze][Special
finish– specify]. Quick response horizontal sidewall sprinklers
shall be Reliable Model DH80, SIN RA0362 (Bulletin 003).
For recessed horizontal sidewall sprinklers: Replace
“horizontal sidewall” with “recessed horizontal sidewall.” Add:
(1) Recessed escutcheon assembly shall be a two-piece
escutcheon of push-on and thread off design with ½”
(12.7mm) adjustment. Standard finish shall be [chrome]
[white]; or (2) Recessed escutcheon assembly shall be a
two-piece “friction fit” escutcheon with ½” adjustment.
Standard finish: [white][chrome][bright brass][Special finish–
specify]. Quick response recessed horizontal sidewall
sprinklers shall be Reliable Model DH80, SIN RA0362
(Bulletin 003).
For concealed horizontal sidewall sprinklers: Replace
“horizontal sidewall” with “concealed horizontal sidewall.”
Add: Cover plate assembly shall consist of a brass cover
plate and copper alloy retainer flange. Method of attaching
the cover plate to the sprinkler cup shall be a push-on and
thread-off design allowing a ½” (12.7mm) cover plate
adjustment. Cover plate temperature rating shall be 135°F
(57°C). A plastic protective cap shall be provided and factory
installed inside the sprinkler cup to protect the sprinkler from
damage, which could occur during construction before the
cover plate is installed. Standard cover plate finish: [white]
[Custom Color– specify]. Quick response concealed horizontal
sidewall sprinklers shall be Reliable Model DH80, SIN RA0362
(Bulletin 003).

The Reliable Automatic Sprinkler Co., Inc.
[phone] Sales Offices
[phone] Sales Fax
[phone] Corporate Offices
www.reliablesprinkler.com Internet Address
Manufactured by
Recycled
Paper
Revision lines indicate updated or new data.
E.G. Printed in U.S.A. 05/08 P/N 9999970246
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.
Products manufactured and distributed by Reliable have been protecting life and property for over 80 years, and are installed and serviced by the most highly
qualified and reputable sprinkler contractors located throughout the United States, Canada and foreign countries.
Figure 2.
Figure 3.