Installation
Model F1 LO sprinklers are standard response sprinklers
intended for installation as specified in NFPA 13. They must
also be installed with the Model D Sprinkler Wrench or Mod-
el W2 Sprinkler Wrench specifically designed by Reliable for
use with these sprinklers.
The Model F1 LO Recessed Sprinklers are to be installed
with a maximum recess of ¾ inch (19mm). The Model F1
Escutcheon illustrated is the only recessed escutcheon to
be used with the Model F1 LO Pendent and EC Sprinklers.
The use of any other recessed escutcheon will void all ap-
provals and negate all warranties. When installing Model F1
LO Recessed Pendent and EC Pendent Sprinklers, use the
Model GFR2 Sprinkler Wrench. Any other type of wrench
may damage these sprinklers.
Note:
A leak tight 1/2” NPT
(R1/2) sprinkler joint can be obtained with a torque of 8 - 18
ft-lbs (11 - 24 N-m). Do not tighten sprinklers over maximum
recommended torque. It may cause leakage or impairment
of the sprinklers.
Glass bulb sprinklers have orange covers to protect the
bulb during the installation process. REMOVE THIS PRO-
TECTION ONLY AFTER THE SYSTEM HAS BEEN HYDRO-
STATICALLY TESTED AND, WHEN APPLICABLE, THE ES-
CUTCHEONS HAVE BEEN INSTALLED. RASCO wrenches
are designed to install sprinklers when covers are in place.
Maintenance
The Models F1 LO and F1 LO Recessed Sprinklers should
be inspected and the sprinkler system maintained in ac-
cordance with NFPA 25. Do not clean sprinklers with soap
and water, ammonia or any other cleaning fluid. Remove
any sprinkler which has been painted (other than factory ap-
plied) or damaged in any way. A stock of spare sprinklers
should be maintained to allow quick replacement of dam-
aged or operated sprinklers. Prior to installation, sprinklers
should be maintained in the original cartons and packaging
until used to minimize the potential for damage to sprinklers
that would cause improper operation or non-operation.
Ordering Information
Specify:
1. Sprinkler Model: F1 LO
2. Sprinkler Type
3. Temperature Rating
4. Sprinkler Finish
5. Thread Type: [¾” NPT] [ISO 7-1R¾]
6. Escutcheon Finish (where applicable)
Temperature Ratings
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Sprinkler
Temperature
Maximum
Ambient
Temperature
Bulb
Color
°F
°C
°F
°C
Ordinary
135
57
100
38
Orange
Ordinary
155
68
100
38
Red
Intermediate
175
79
150
66
Yellow
Intermediate
200
93
150
66
Green
High
(1)
286
141
225
107
Blue
Extra High
(1)
360
182
300
149
Mauve
(1)
Not Available for F1 LO Recessed
Maximum Working Pressure
175 psi (12 bar)
SIN R1712, R1722 & R1742 cULus listed for 250 psi (17 bar)
100% Factory tested hydrostatically to 500 psi (34.5 bar)
Finishes
(1)
Standard Finishes
Sprinkler
Escutcheon
Bronze
Chrome
Polyester Coated
(6)(7)
Brass
Chrome
White Painted
Special Application Finishes
Sprinkler
Escutcheon
Electroless Nickel PTFE
(8)
Bright Brass
(2)
Black Plated
Black Paint
(3)(4)
Off White
(3)
Chrome Dull
Lead Plated
(3)(4)
Wax Coated
(3)(4)(5)
Wax Over Lead
(3)(4)
Electroless Nickel PTFE
Bright Brass
Black Plated
Black Paint
Off White
Chrome Dull
(1)
Other colors and finishes are available on special order.
Consult factory for details. Custom color painted sprin-
klers may not retain their UL Corrosion resistance list-
ing.
(2)
200°F (93°C) maximum.
(3)
UL and ULC listed, and NYC approved only.
(4)
155°F to 200°F (68°C to 93°C) ratings only.
(5)
286°F (141°C) sprinklers may be coated for ambient
conditions not exceeding 150°F (66°C).
(6)
UL listed corrosion resistant SIN number:
R1722 in standard Black or White. Corrosion resistance
in other polyester colors is available upon request.
(7)
FM Approved for SIN R1722, R1712.
(8)
cULus listed Corrosion Resistant SIN R1722, R1712 &
R1742 in Electroless Nickel PTFE Plated.
5.
