GEM A/Q-71, Быстрый старт, Страница: 4 / 6

A leak tight 1/2 inch NPT sprinkler
joint should be obtained with a torque
of 7 to 14 ft.lbs. (9,5 to 19,0 Nm). A
maximum of 21 ft. lbs. (28,5 Nm) of
torque may be used to install sprin-
klers with 1/2 NPT connections.
Higher levels of torque may distort the
sprinkler inlet with consequent leak-
age or impairment of the sprinkler.
When an escutcheon plate is utilized,
do not attempt to make-up for insuffi-
cient escutcheon plate adjustment by
under- or over-tightening the sprin-
kler. Readjust the position of the
sprinkler fitting to suit.
The Model A/Q-71 Horizontal Side-
wall Sprinklers must be installed in
accordance with the following instruc-
tions.
Step 1. Horizontal sidewall sprinklers
are to be installed in the horizontal
position with their centerline of water-
way perpendicular to the back wall and
parallel to the ceiling.
It is recommended that a lightweight
spirit level (less than 1 pound) be used
to level the sprinkler fitting as shown in
Figure C and that a square be used to
to check perpendicularity of the water-
way to the mounting surface.
Step 2. With pipe thread sealant ap-
plied to the pipe threads, hand tighten
the sprinkler into the sprinkler fitting.
Step 3. Tighten the sprinkler into the
sprinkler fitting using only the W-Type
6 Sprinkler Wrench (Ref. Figure C).
With reference to Figure A, the W-
Type 6 Sprinkler Wrench is to be ap-
plied to the wrench flats.
The Model A/Q-71 Recessed Hori-
zontal Sidewall Sprinklers must be
installed in accordance with the follow-
ing instructions.
Step A. Recessed horizontal sidewall
sprinklers are to be installed in the
horizontal position with their centerline
of waterway perpendicular to the back
wall and parallel to the ceiling.
It is recommended that a lightweight
spirit level (less than 1 pound) be used
to level the sprinkler fitting as shown in
Figure C and that a square be used to
to check perpendicularity of the water-
way to the mounting surface.
Step B. Verify that the face of the
sprinkler fitting is within the proper
range of distance which can be accom-
modated by the Model F700 or F705
Recessed Escutcheon.
For best overall appearance, use Di-
mension “A” indicated under the “Fully
Recessed Dimensions” heading of
Figure B. Otherwise, use Dimension
“A” under the “High Adjustment Di-
mensions” heading. In either case, the
remaining adjustment can be used to
compensate for the possible manufac-
turing variations in take-out of the fit-
ting, as well as in the make-in of the
sprinklers (as permitted by ANSI
B1.20.1).
Step C. After installing the F700 or
F705 Mounting Plate over the sprin-
kler threads, hand tighten the sprinkler
into the sprinkler fitting.
Step D. Tighten the sprinkler into the
sprinkler fitting using only the W-Type
7 Recessed Sprinkler Wrench (Ref.
Figure D). With reference to Figure A,
the W-Type 7 Recessed Sprinkler
Wrench is to be applied to the sprinkler
wrench flats.
Step E. After the wall has been in-
stalled or the finish coat has been ap-
plied, slide on the F700 or4 F705 Clo-
sure over the Model A/Q-71 Sprinkler
and push the Closure over the Mount-
ing Plate until its flange comes in con-
tact with the ceiling.
CARE AND MAINTENANCE
The Model A/Q-71 Sprinklers must be
maintained and serviced in accord-
ance with the following instructions:
NOTE
Before closing a fire protection system
control valve for maintenance work
on the fire protection system which it
controls, permission to shut down the
affected fire protection system must be
obtained from the proper authorities
and all personnel who may be affected
by this action must be notified.
Absence of an escutcheon, which is
used to cover a clearance hole, may
delay the time to sprinkler operation
in a fire situation.
Sprinklers which are found to be leak-
ing or exhibiting visible signs of corro-
sion must be replaced.
Automatic sprinklers must never be
shipped or stored where their tempera-
tures will exceed 100°F/38°C and they
must never be painted, plated, coated
or otherwise altered after leaving the
factory. Modified sprinklers must be
replaced. Sprinklers that have been
exposed to corrosive products of com-
bustion, but have not operated, should
be replaced if they cannot be com-
pletely cleaned by wiping the sprinkler
with a cloth or by brushing it with a soft
bristle brush.
Care must be exercised to avoid dam-
age to the sprinklers — before, during,
and after installation. Sprinklers dam-
aged by dropping, striking, wrench
twist/slippage, or the like, must be re-
placed. Also, replace any sprinkler that
has a cracked bulb or that has lost
liquid from its bulb (ref. Installation
Section Note).
Frequent visual inspections are rec-
ommended to be initially performed for
lead coated sprinklers, after the instal-
lation has been completed, to verify
the long term potential integrity of the
sprinkler coatings. Thereafter, annual
inspections per NFPA 25 should suf-
fice; however, instead of inspecting
from the floor level, a random sampling
of close-up visual inspections should
be made, so as to better determine the
exact sprinkler condition and the long
term integrity of the lead coating, as it
may be affected by the corrosive con-
ditions present.
The owner is responsible for the in-
spection, testing, and maintenance of
their fire protection system and de-
vices in compliance with this docu-
ment, as well as with the applicable
standards of the National Fire Protec-
tion Association (e.g., NFPA 25), in
addition to the standards of any other
authorities having jurisdiction. The in-
stalling contractor or sprinkler manu-
facturer should be contacted relative
to any questions.
It is recommended that automatic
sprinkler
systems be inspected,
tested, and maintained by a qualified
Inspection Service.
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