Installation
Model F4FR-NF sprinklers are intended to be installed
in accordance with NFPA 13, FM Global Property Loss
Prevention Data Sheets, and the requirements of applicable
authorities having jurisdiction.
Do not install The Non-Ferrous Concealer™ in ceilings which
have positive pressure in the space above. In addition,
inspect all sprinklers after installation to ensure that both the
gap between the cover plate and ceiling and the four (4) slots
in the cup are open and free from any air flow impediment.
After a 2-5/8” diameter hole is cut in the ceiling, the sprinkler
is installed with the Model G4 Wrench. When installing a
sprinkler, the wrench is first positioned into the sprinkler/cup
assembly until two wrench tangs fully engage drive slots in the
top of the cup (there are two pairs of drive slots in the cup).
The sprinkler is then tightened into the pipe fitting to a torque
of 8 to18 ft-lbs (11 to 24 N.m). Do not exceed the maximum
recommended torque. Excessive torque may cause leakage
or impairment of the sprinkler.
When inserting or removing the wrench from the sprinkler/
cup assembly care should be taken to prevent damage to the
sprinkler. DO NOT WRENCH ON ANY OTHER PART OF THE
SPRINKLER/CUP ASSEMBLY. Replace any sprinklers that
have been damaged.
Install the cover plate by hand, pushing and then turning the
cover in the clockwise direction until it is tight against the
ceiling.
G4 Wrench
Standard Finishes Special Application Finishes
Chrome Bright Brass
White Finished Bronze
Black Plated
Black Paint
Off White
Chrome Dull
*Note: Other finishes and colors are available on special
order. Consult factory for details. Cover plate custom paint is
semi-gloss, unless specified otherwise.
Cover Plate Finishes* Table B
Maintenance
Reliable Model F4FR series sprinklers should be inspected
and the sprinkler system maintained in accordance with NFPA
25, as well as the requirements of any Authorities Having
Jurisdiction.
Prior to installation, sprinklers should remain in the original
cartons and packaging until used. This will minimize the
potential for damage to sprinklers that could cause improper
operation or non-operation.
Do not clean sprinklers with soap and water, ammonia
liquid or any other cleaning fluids. Remove dust by gentle
vacuuming without touching the sprinkler.
Replace any sprinkler which has been painted (other than
factory applied). A stock of spare sprinklers should be
maintained to allow quick replacement of damaged or
operated sprinklers. Failure to properly maintain sprinklers
may result in inadvertent operation or non-operation during a
fire event.
Guarantee
For the Reliable Automatic Sprinkler Co., Inc. guarantee, terms,
and conditions, visit www.reliablesprinkler.com.
Ordering Information
Specify:
Sprinkler
• F4FR-NF
Temperature
•
135°F (57°C)
• 155°F (68°C)
Cover Plate Finish
• See Table B
Sprinkler Wrench
•Model G4
Note: Paint or any other coatings applied over the factory
finish will void all approvals and warranties.
Bulletin 002
September 2020
Page 3 of 3
www.reliablesprinkler.com
P/N 9999970241
