Reliable DH56 HSW, Руководство пользователя

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2.
Environments wherein dry sprinklers are employed can
be corrosive. For this reason, Model DH56 dry sprinklers
have a special wax fillet placed in the gap between the
cup that supports the bulb and the wrenching boss. This
wax will not interfere with the operation of the sprinkler, and
it prevents contaminants from entering the internal portion
of the drop nipple. The wax must not be removed.
Application
The Model DH56 is a horizontal sidewall dry sprinkler
intended for installation in light hazard occupancies in ac-
cordance 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.
General Installation Instructions
Model DH56 dry sprinklers must be installed only in stan-
dard (ANSI B 16.3 class 150 and ANSI B 16.4 class 125)
pipe tees in the horizontal position, even at branch line ends.
They should not be installed into elbows or pipe couplings
located on drop nipples to the sprinklers. For these and
other fittings including CPVC, the dry sprinkler should be
installed into a fitting to allow protrusion into the fitting in ac-
cordance with the diagrams. The “A” dimension of the dry
sprinkler, which extends into a freezing zone from wet pipe
systems, should be selected to provide, as a minimum, the
specified lengths in inches shown in Fig. 1.
Caution:
Do not install Model DH56 HSW Dry sprinklers into CPVC
adapter fittings or tees that have an internal obstruction.
This will damage the sprinkler and /or the fitting. Refer to
Fig. 8
DH56 HSW
To install the DH56 HSW dry sprinkler cut a 2
1
/
8
” diameter
hole in the wall as shown in Fig. 4. Use the Model F3 instal-
lation wrench (see Fig. 3) on the square boss to tighten the
sprinkler until it is secured in the sprinkler fitting
1
. Apply a
Teflon* based sealant to the sprinkler threads before install-
ing in the sprinkler. Installation is completed by removing
the orange glass bulb-protector and assembling the slip-on
escutcheon to the sprinkler’s can.
DH56 HSW/HB
To install the DH56 HSW/HB dry sprinkler cut a 2½” di-
ameter hole in the wall as shown in Fig. 5. Use the Model
F3 installation wrench (see Fig. 3) on the square boss to
tighten the sprinkler until it is secured in the sprinkler fitting
1
.
Apply a Teflon* based sealant to the sprinkler threads be-
fore installing in the sprinkler. Installation is completed by
removing the orange glass bulb-protector and assembling
the slip-on escutcheon to the sprinkler’s can.
DH56 HSW Recessed with FP Escutcheon
To install the DH56 HSW dry sprinkler with the FP Escutch-
eon as a recessed sprinkler cut a 2
5
/
8
” diameter hole in the
wall as shown in Fig. 6. Temporarily remove the plastic pro-
tective cap, and then use the Model XLO2 wrench
1
(see
Fig. 2) to tighten the sprinkler until it is secured in the sprin-
kler fitting.
Note:
The Model XLO2 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 seal-
ant to the sprinkler threads before installing in the sprinkler.
It is recommended that the sprinkler be protected during
plastering and painting operations by reinstalling the plastic
protective cap. Installation is completed by removing the
protective cap and inserting the push-on escutcheon. Turn
clockwise to adjust the escutcheon against the wall.
DH56 HSW Concealed with SWC Cover Plate
To install the DH56 HSW dry sprinkler with the SWC cover-
plate as a concealed sprinkler, cut a 2
1
/
8
” diameter hole into
the wall as shown in Fig. 7. Temporarily remove the plastic
protective cap, and then use the Model XLO2 wrench
1
(see
Fig. 2) to tighten the sprinkler until it is secured in the sprin-
kler fitting.
Note:
The Model XLO2 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 seal-
ant to the sprinkler threads before installing in the sprinkler.
It is recommended that the sprinkler be protected during
plastering and painting operations by reinstalling the plastic
protective cap. Installation is completed by removing the
protective cap and inserting the coverplate. Coverplate as-
semblies provide ½” (13mm) of adjustment. Final adjust-
ment is made by turning the coverplate clockwise until the
skirt flange makes full contact with the wall surface. Cover
removal requires turning in the counter-clockwise direction.
Concealed coverplate assemblies are listed only for use
with specific sprinklers. The use of any other concealed wall
sprinkler or the use of the SWC coverplate 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 SER-
VICE 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 UNDO-
ING THE CLASP BY HAND. DO NOT USE TOOLS TO RE-
MOVE THE PROTECTORS.
*DuPont Registered Trademark
1 Installation Wrenches:
Throughout this technical bulletin, Reliable has specified specific installation wrenches for use on each version of our sprinklers. A pipe wrench may also
be used to install a dry sprinkler provided that it only interfaces with the steel outer tube of the assembly (Item #8 on fig 10). Keep in mind that a pipe
wrench will incorporate a large amount of torque into the final assembly. This torque will have to be matched or exceeded upon the sprinkler’s removal at
a later date.