Reliable Dh56 hsw-pl User manual

Bulletin 015

The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523

Model DH56

Model DH56 Recessed

Model DH56 Concealed

Quick Response,

Extended Coverage Sprinkler

DH56 Concealed

with SWC cover plate

DH56 FP Recessed

DH56

For coverages up to 28 feet wide and

10 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 10 feet long.(1)

2. Deflector to ceiling dimensions are:

4²(102mm) min. to 12²(305mm) max.

3. Minimum spacing between sprinklers

14 feet (4.3m).

4. UL Listed for extended coverage, light

hazard applications.

5. 5.6 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. Concealed cover plate can prevent the

sprinkler from being used for unintended

purposes. No exposed thermal element

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.

Approval Organizations

1. Listed by Underwriters Laboratories Inc. and

UL certified for Canada (cULus)

2. NYC MEA 258-93-E

Products Description

The Model DH56 family of sprinklers are quick response

extended coverage sidewall sprinklers for use in light hazard

applications. The Model DH56 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 DH56 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 sprinklers of the same temperature rating.

Application

The Model DH56 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 10

feet (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.

DH56 F2 Recessed

(1) See Figure 4.

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

5.6 80

²NPT

(R1/2)

155°F

(68°C)

135°F

(57°C)

100°F

(38°C) RA1564

200°F

(93°C)

165°F

(74°C)

150°F

(66°C)

Technical Data(1):

(1) Minimum spacing of 14 feet (4,3m).

Installation

DH56 Recessed, FP Escutcheon

To install the DH56 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 GFR2 wrench to tighten the sprinkler until secured in

the sprinkler fitting. NOTE: The GFR2 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.

DH56 Recessed, F2 Escutcheon

To install the DH56 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

GFR2 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.

DH56 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

GFR2 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 DH56 Horizontal Sidewall

Maintenance

Model DH56 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.

Coverage Area

Maximum Coverage Area

Width x Length

ftxft(mxm)

Flow Rate

gpm (L/min)

Pressure

psi (bar)

28 x 8 (8,5 x 2,4) 23 (87,1) 16.9 (1,2)

28 x 10 (8,5 x 3) 28 (106) 25 (1,7)

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: DH56 and DH56 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.

Figure 1.

(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(1)

Sprinkler FP Escutcheon F2 Escutcheon Cover Plate

White/ Chrome /

Bronze White / Chrome White / Chrome /

Bright Brass White

Finishes(1)

UL Listing Category

Sprinklers, Automatic

and Open.

Quick Response Sprinklers.

Installation Wrench

Model GFR2 Sprinkler Wrench

Note: A leak tight ½" NPT (R1/2)

sprinkler joint can be obtained with

a torque of 8-18 ft-lbs (10.8-24.4

N-m). Do not tighten sprinklers

over maximum recommended

torque. It may cause leakage or

impairment of the sprinklers.

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:

•DH56

- Sprinkler Finish

•DH56 Recessed

-Sprinkler Finish

FP or F2 Escutcheon

-Escutcheon Finish

•SWC Concealed

-Cover-Plate Finish

•Protective cap for

use with F2

escutcheons

Model DH56 Quick Response

Extended Coverage Horizontal

Sidewall Sprinkler Specification

Sprinklers shall be a [quick response – cULus Listed]

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 10

ft. (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 5.6 (80), and 12”

NPT thread. Sprinkler temperature rating shall be [155°F (68°

C)][200°F (93°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 DH56, SIN RA1564 (Bulletin 015).

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” (13mm)

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 DH56, SIN RA1564 (Bulletin 015).

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” (13mm) cover plate

adjustment. Cover plate temperature rating shall be 135°F

(57°C) for 155°F(68°C) sprinkler and 165°F (74°C) for 200°F

(93°C) sprinkler. 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 DH56, SIN RA1564

(Bulletin 015).

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

Recycled

Paper

Revision lines indicate updated or new data.

E.G. Printed in U.S.A. 6/06 P/N 9999970307

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