
TFP181
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Care and
Maintenance
The TYCO Series RFII 5.6 K-fac-
tor, “Royal Flush II” Concealed Pen-
dent Sprinklers must be maintained
and serviced in accordance with this
section.
Beforeclosingareprotectionsystem
main control valve for maintenance
work on the re protection system that
it controls, obtain permission to shut
down the affected re protection sys-
tem from the proper authorities and
notify all personnel who may be affect-
ed by this action.
Absence of the Cover Plate/Retainer
Assembly can delay sprinkler opera-
tion in a re situation.
When properly installed, there is a
nominal 3/32 inch (2,4 mm) air gap be-
tween the lip of the Cover Plate and the
ceiling, as shown in Figure 2.
This air gap is necessary for proper
operation of the sprinkler. If the ceil-
ing requires repainting after sprinkler
installation, ensure that the new paint
does not seal off any of the air gap.
Do not pull the Cover Plate relative to
the Enclosure. Separation may result.
Sprinklers which are found to be leak-
ing or exhibiting visible signs of corro-
sion must be replaced.
Automatic sprinklers must never be
painted, plated, coated, or other-
wise altered after leaving the factory.
Modied sprinklers must be replaced.
Sprinklers that have been exposed to
corrosive products of combustion, but
have not operated, should be replaced
if they cannot be completely 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.)
Exercise care to avoid damage to
sprinklers before, during, and after in-
stallation. Replace sprinklers damaged
by dropping, striking, wrench twisting,
wrench slipping, or the like. Also, re-
place any sprinkler that has a cracked
bulb or that has lost liquid from its
bulb. (Refer to the Installation section.)
CUP
AIR
AND DUST
SEAL
COVER
PLATE
LIP OF
RETAINER
CEILING
SEAL
BEVEL AS
SHOWN
COVER
PLATE
RETAINER
ASSEMBLY
FIGURE 5
OPTIONAL AIR AND DUST SEAL FOR SERIES RFII (TY3551)
If you must remove a sprinkler, do not
reinstall it or a replacement without re-
installing the Cover Plate/Retainer As-
sembly. If a Cover Plate/Retainer As-
sembly becomes dislodged during
service, replace it immediately.
The owner is responsible for the in-
spection, testing, and maintenance of
their re protection system and devic-
es in compliance with this document,
as well as with the applicable stan-
dards of the National Fire Protection
Association (e.g., NFPA 25), in addition
to the standards of any other authori-
ties having jurisdiction. Contact the in-
stalling contractor or sprinkler manu-
facturer regarding any questions.
Automatic sprinkler systems should be
inspected, tested, and maintained by a
qualied Inspection Service in accor-
dance with local requirements and/or
national code.
Ordering
Procedure
Contact your local distributor for
availability. When placing an order,
indicate the full product name.
Sprinkler/Support Cup Assembly
Specify: Series RFII (specify SIN),
K=5.6, “Royal Flush II” Pendent Sprin-
klers (specify) temperature rating and
(specify) nish, P/N (specify).
155°F (68°C) 200°F (93°C)
TY3531 51-792-1-155 51-792-1-200
TY3551 51-790-1-155 51-790-1-200
Separately Ordered Cover Plate/
Retainer Assembly:
Specify: (temperature rating from be-
low) Series RFII Concealed Cover
Plate with (nish), P/N (specify).
139°F (59°C)(a) 165°F (74°C)(b)
Grey White
(RAL9002) .... 56 -792-0-135 56 -792- 0-165
Brass.......... 56 -792-1-135 56-792-1-165
Pure White (c)
(RAL9010) .... 56-792-3 -135 56-792-3-165
Signal White
(RAL9003) .... 56 -792-4-135 56-792-4-165
JetBlack
(RAL9005) .... 56-792-6-135 59-792-6-165
Brushed
Chrome ........ 56-792- 8-135 56-792-8-165
Chrome ........ 56-792-9-135 56-792-9-165
Custom ........ 56-792-X-135 56-792-X-165
(a) For use with 155°F (68°C) sprinklers.
(b) For use with 200°F (93°C) sprinklers.
(c) Eastern Hemisphere sales only.
Sprinkler Wrench
Specify: RFII Sprinkler Wrench,
P/N 56-000-1-075.
Air and Dust Seal
Specify: Air and Dust Seal,
P/N 56-908-1-001.