Technical Data:
Nominal
K-Factor
Thread
Size
Temperature
Rating
Maximum
Ambient
Temperature
Sprinkler
Identification
Number
(SIN)
US
Met-
ric
Sprinkler
SWC
Cover
8.0
115
1” NPT
or
ISO
7-1R1
155°F
(68°C)
135°F
(57°C)
100°F
(38°C)
RA5532
175°F
(79°C)
165°F
(74°C)
150°F
(66°C)
200°F
(93°C)
165°F
(74°C)
150°F
(66°C)
Required Minimum Flow Rate and Pressure
Maximum Coverage
Area Width x Length
ft x ft (m x m)
Flow Rate
gpm (L/min)
Pressure
psi (bar)
28 x 14 (8.5 x 4.3)
40 (151)
25 (1.7)
Installation Instructions
Model DH80 Dry sprinklers must only be installed in the
following fittings:
(1.) the side outlet of an ANSI B 16.3 class 150 malleable iron
pipe tee
(2.) the side outlet of an ANSI B 16.4 class 125 cast iron pipe
tee
(3.) the side outlet of a Spears Manufacturing Company Model
4202-010 or Model 4202-010SR Listed CPVC sprinkler tee
(4.) the side outlet of any Listed CPVC sprinkler tee only in
accordance with Fig. 9 and upon verification that the CPVC
sprinkler tee does not interfere with the sprinkler’s inlet.
Model DH80 Dry sprinklers shall not be installed into elbows,
welded outlets, or gasket sealed outlets. In all installations,
including into CPVC piping, the dry sprinkler shall be installed
with protrusion into the fitting in accordance with the installation
diagrams in this Bulletin.
Installation of the Model DH80 Dry sprinkler is not recommend
in copper pipe systems, as this may reduce the life expectancy
of the sprinkler. Do not install Model DH80 Dry sprinklers with
the standard (long) inlet fitting into CPVC fittings that have an
internal obstruction (see Fig. 9); this will damage the sprinkler,
the fitting, or both. Model DH80 Dry sprinklers are available
with a short “PL” inlet fitting for installation on CPVC fittings of
wet pipe sprinkler systems only. Model DH80 Dry sprinklers
connected to wet-pipe systems must be installed with the
Exposed Minimum Barrel Length required by Fig. 8 located in
a Heated Area.
A clip is provided to protect the glass bulb thermal element
from damage. The clip is factory installed on the sprinkler. The
clip should remain in place during installation of the sprinkler
and be removed when the sprinkler system is placed in service.
Model DH80 Dry sprinklers with the Model FP recessed
escutcheon or the Model SWC cover plate are also supplied
with a cap that can be used to provide additional protection
for the sprinkler during painting or finishing. The cap can
be installed without removing the clip. Both the cap and the
clip must be removed when the sprinkler system is placed in
service.
Use the following steps for installation:
1. The centerline of the Model DH80 Dry sprinkler must be
installed between 4-5/8” (118 mm) and 12-5/8” (321 mm)
vertically below the finished ceiling so that the top of the
deflector is not less than 4“ (102 mm) or more than 12”
(305 mm) from the finished ceiling. A hole must be cut in
the wall directly in-line with the outlet of the tee. See the
Installation Data table for the recommended hole diameter
based on the escutcheon or cover plate option selected.
2.
Apply pipe joint compound or Polytetrafluoroethylene
(PTFE) tape to the threads of the sprinkler’s inlet fitting.
3. Install the sprinkler in the tee using the installation wrench
specified in the Installation Data table. The Model F3R
wrench is designed to be inserted into the groves in the
sprinkler’s wrench boss as shown in Fig. 3. The Model
XLO2 wrench is designed to fit into the cup and engage the
wrench boss as shown in Fig. 2. Do NOT wrench any part of
the sprinkler assembly other than the wrench boss. When
inserting or removing the wrench from the sprinkler, care
should be taken to prevent damage to the sprinkler. The
sprinkler is then tightened into the pipe fitting to achieve
a leak free connection. The recommended minimum to
maximum installation torque is 22-30 lb-ft (30 – 40 N-m).
3a. Alternatively, where access to the outer tube of the
sprinkler is available, the Model DH80 Dry sprinkler may be
installed using a pipe wrench. The pipe wrench shall only
be permitted to interface with the steel outer tube portion
of the sprinkler (Item #8 in Fig. 10). Do NOT wrench any
other portion of the sprinkler assembly. A pipe wrench can
install the sprinkler into the fitting with a large amount of
torque; consideration should be given to the need for future
removal of the sprinkler because the installation torque will
have to be matched or exceeded to remove the sprinkler.
The recommended minimum to maximum installation
torque is 22-30 lb-ft (30 – 40 N-m).
4. Standard and Model HB escutcheons can be installed by
slipping the escutcheon over the can until the escutcheon
is seated against the wall. The Model FP escutcheon is
installed by pressing or threading the escutcheon into the
cup by hand; the escutcheon can be tightened against the
wall by turning the escutcheon in a clockwise direction and
removed by turning the escutcheon in a counter-clockwise
direction. To install the Model SWC cover plate, first remove
the protective cap, if installed, and clip. Install the Model
SWC cover plate on the sprinkler by pressing or threading
the cover plate into the cup by hand; the cover plate can
be tightened against the wall by turning the cover plate in a
clockwise direction and removed by turning the cover plate
in a counter-clockwise direction. The Model FP recessed
escutcheon and Model SWC cover plate are the only
recessed escutcheon and cover plate, respectively, listed
for use with the Model DH80 Dry sprinkler; the use of any
other recessed escutcheon or cover plate with the Model
DH80 Dry sprinkler will void all guarantees, warranties,
listings and approvals.
5. Remove the protective cap, if installed, and clip when
placing the sprinkler system in service.
4.
