DESIGN CRITERIA
The 5.6 K-Factor, Model PH-2 (SIN S1687) Institutional
Pendent Sprinklers are intended for use with fire protec-
tion systems designed in accordance with the standard in-
stallation rules recognized by the applicable Listing or Ap-
proval agency (e.g., UL Listing is based on NFPA 13
requirements).
Only the Institutional Escutcheons shown in Figure 2 can
be utilized with the Model PH-2, and a maximum of three
Spacers (#1752) can only be utilized with Style B1 or C
Institutional Escutcheons when vertical adjustment is de-
sired.
NOTE
Integrity of the tamper resistant design of the Institutional
Escutcheons is dependent on the piping installation de-
sign. When installed properly, the Institutional Escutch-
eon is held fast to the mounting surface by the tightening
of the sprinkler assembly into the sprinkler fitting. In order
to accomplish a proper installation, the sprinkler fitting
must be properly located with respect to distance from
the face of the sprinkler fitting to the face of the mounting
surface (Ref. Figure 2); the sprinkler fitting being rigidly
secured and held immobile; and, the centerline of the
sprinkler fitting being perpendicular to the mounting sur-
face to assure that the escutcheon sits squarely against
the mounting surface around the entire perimeter of the
Institutional Escutcheon.
INSTALLATION
The 5.6 K-Factor, Model PH-2 Sprinklers must be in-
stalled in accordance with the following instructions:
NOTES
Refer to the Design Criteria section for important informa-
tion regarding the piping installation design and its affect
on maintaining the integrity of the tamper resistant design
of the Institutional Escutcheons.
A leak tight 1/2 inch NPT sprinkler joint should be ob-
tained with a torque of 7 to 14 ft.lbs. (9,5 to 1,0 Nm). A
maximum of 21 ft.lbs. (28,5 Nm) of torque is to be used to
install these sprinklers. Higher levels of torque may dis-
tort the sprinkler inlet with consequent leakage or impair-
ment of the sprinkler.
Do not attempt to compensate for improper location of
the sprinkler fitting by under- or over-tightening the Sprin-
kler. Readjust the position of the sprinkler fitting to suit, or
increase or decrease the number of #1752 Spacers, as
applicable.
After the installation is complete, make certain that the In-
stitutional Escutcheon is held fast to the mounting sur-
face and that it sits squarely against the ceiling around its
entire perimeter.
1. The Model PH-2 Sprinklers must be installed pendent
and with the centerline of their waterway perpendicular
to the ceiling.
2. With the Institutional Escutcheon in place and with pipe
thread sealant applied to the pipe threads, hand tighten
the sprinkler into the sprinkler fitting.
3. Wrench tighten the Sprinkler using only the #1509,
#1509-1, #1509-3, or #1509-4 Sprinkler Wrench, as ap-
plicable (Ref. Figure 4). The wrenching teeth of the
Sprinkler Wrench are to be applied to the sprinkler
wrenching notch areas (Ref. Figure 1).
4 After the installation is complete, make certain that the
Institutional Escutcheon is held fast to the mounting sur-
face and that it sits squarely against the ceiling around
its entire perimeter.
CARE AND MAINTENANCE
The 5.6 K-Factor, Model PH-2 Sprinklers must be main-
tained and serviced in accordance with the following in-
structions:
NOTES
Service inspections should be made on a regular basis to
detect possible damage or alterations to the sprinkler and
escutcheon. Inspections should include making certain
that the Institutional Escutcheon is held fast to the mount-
ing surface. Damaged or altered sprinklers are to be re-
placed immediately to avoid personal injury and to pre-
vent use for causing personal injury, as well as to
maintain the sprinkler system in an operative condition.
Before closing a fire protection system main control valve
for maintenance work on the fire protection system which
it controls, permission to shut down the affected fire pro-
tection systems must be obtained from the proper authori-
ties and all personnel who may be affected by this action
must be notified.
STAR SPRINKLER
Page 2
1-5.2.10
FIGURE 1
5.6 K-FACTOR, MODEL PH-2 STANDARD RESPONSE
INSTITUTIONAL PENDENT SPRINKLER
3.18"
(80.8 mm)
FITTING
FACE OF
SPRINKLER
SPRINKLER
NOTCH (2)
WRENCHING
IN OPERATED
DEFLECTOR
POSITION
(71.4 mm)
NPT
2.81"
1/2"
7/16" (11.1 mm)
NOMINAL MAKE-IN
OBSOLETE
