Federal Signal Corporation 191XL Series Manual

2561421
REV. H0 0718
Printed in U.S.A.
© 2013-2018 Federal Signal Corporation
Model 191XL Series Beacon
for Use in Hazardous Conditions
Installation and
Maintenance Manual
français...............page 21
español...............página 41

2
Limited Warranty
This product is subject to and covered by a limited warranty,
a copy of which can be found at www.fedsig.com/SSG-Warranty.
A copy of this limited warranty can also be obtained by written
request to Federal Signal Corporation, 2645 Federal Signal Drive,
University Park, IL 60484, email to [email protected] or call
[phone].
This limited warranty is in lieu of all other warranties, express or
implied, contractual or statutory, including, but not limited to the
warranty of merchantability, warranty of tness for a particular
purpose and any warranty against failure of its essential purpose.
2645 Federal Signal Drive
University Park, Illinois 60484-3167
www.fedsig.com
Customer Support 800-344-4634 • [phone]
Technical Support 800-524-3021 • [phone]

Model 191XL LED Series Beacon 3
Contents
Safety Messages to Installers .......................................................... 5
An Overview of the 191XL Series..................................................... 6
Unpacking the Beacon...................................................................... 7
Pipe-Mounting the Beacon (191XL Series) ..................................... 9
Surface-Mounting the Beacon (191XL Series).............................. 11
Wiring the Beacon........................................................................... 12
Wiring 120-240 Vac, 277 Vac Models.................................... 13
Wiring 24 Vac/dc Models....................................................... 13
Safety Message to Maintenance Personnel.................................. 13
Changing from Flash Mode to Steady Mode................................. 14
Cleaning the Fixture........................................................................ 17
Lubricating the Threaded Joint...................................................... 18
Ordering Replacement Parts.......................................................... 18
Getting Repair Service and Technical Assistance ...................... 19
Returning the Product for Credit ................................................... 19
Tables
Table 1 Electrical ratings.................................................................................7
Table 2 Installation environment ratings..........................................................8
Table 3 Ambient and operating temperature range for the 191XL ..................8
Table 4 Ambient and operating temperature range for the 191XL-CN............8
Table 5 Replacement parts ...........................................................................18

4
Model 191XL Series LED Beacon
Contents
Figures
Figure 1 Pipe-mounted beacon ................................................................... 10
Figure 2 Surface-mounted beacon ...............................................................11
Figure 3 PCB removed from housing .......................................................... 16
Figure 4 Location of jumper J3 on PCB....................................................... 17

5
Installation and Service Instructions
Model 191XL Series LED Beacon
Safety Messages to Installers
It is important to follow all instructions shipped with this product.
This device is to be installed by a trained electrician who is
thoroughly familiar with the National Electrical Code and/or
Canadian Electrical Code and will follow the NEC and/or CEC
Guidelines as well as all local codes. This beacon should be
considered a part of the warning system and not the entire warning
system.
The selection of the mounting location for the beacon, its controls
and the routing of the wiring are to be accomplished under the
direction of the facilities engineer and the safety engineer. In
addition, listed below are some other important safety instructions
and precautions you should follow:
• Read and understand all instructions before installing or
operating this beacon.
• Do not connect this beacon to the system when power is on.
• Do not disconnect the beacon while circuit is live or unless the
area is known to be free of ignitable concentrations. Keep the
beacon tightly closed when in operation.
• After installation, make sure that all set screws and threaded
joints are properly tightened.
• Never alter the unit in any manner. Safety in hazardous
locations may be endangered if additional openings or other
alterations are made in units specically designed for use in
these locations.
• To be an effective warning device, this product produces bright
beacon that can be hazardous to your eyesight when viewed at
a close range. Do not stare directly into this lighting product at
a close range or permanent damage to your eyesight may occur.

6
Installation and Service Instructions
Model 191XL Series LED Beacon
• After installation, test the beacon to make sure that it is
operating properly.
• Keep the unit tightly closed when in operation.
• After testing is complete; provide a copy of this instruction
booklet to all personnel.
• Establish a procedure to routinely check the beacon for proper
activation and operation.
Failure to follow all safety precautions and instructions may result
in property damage, serious injury, or death.
An Overview of the 191XL Series
The 191XL is suitable for use in Class I, Division 2, Groups A, B,
C and D; Class II, Division 1, Groups E, F & G; Class III OR non-
hazardous locations only.
The 191XL-CN is suitable for use in Class I, Zone 2, and Zone 22
or non-hazardous locations only.
This strobe light can be mounted to a Federal Signal Model
LHWB bracket. If installed in this way, the entire assembled
device is suitable only for Class I, Div. 2, Groups A, B, C, and D;
Class II, Div. 2, Groups F and G; Class III locations.
The Model 191XL Series LED Beacon is a UL listed visual signal
for operation in harsh environments and hazardous locations
and has been investigated by UL as meeting Type 4X and IP66
enclosure requirements. The unit is rated for operation on 100 Vac
to 265 Vac, 50/60 Hz, 0.21 A; 277 Vac, 50/60 Hz, 0.13A; or 24
Vdc/ac 50/60 Hz, 0.40 A. The 191XL Series can be supplied with
colors of red, amber, green, blue, and clear. The 191XL Series
is factory-set to operate 60 ashes/minute. There is an option to
operate the LED Beacon in Steady Mode. (See “Changing from
Flash Mode to Steady Mode” on page 14). Models are available
for pipe mounting (191XL Series) or surface mounting (191XL-S
Series).

7
Installation and Service Instructions
Model 191XL Series LED Beacon
These devices are intended for permanent installation and
operation in accordance with Title 46, Code of Federal
Regulations, Parts 110–113, or Title 33, Code of Federal
Regulations, Part 183, Sub-part I, Section 183.410, and the
applicable requirements of the American Boat and Yacht Council,
Inc., and/or ANSI/NFPA 302, “Fire Protection Standard for
Pleasure and Commercial Motor Craft.”
Unpacking the Beacon
EXPLOSION HAZARD: Damaged domes can lead to explosions
that could result in serious injury or death.
After unpacking the beacon, examine it for damage that may
have occurred in transit. If the beacon has been damaged, do not
attempt to install or operate it. File a claim immediately with
the carrier, stating the extent of the damage. Carefully check all
envelopes, shipping labels, and tags before removing or discarding
them. Disposal of all shipping materials must be carried out in
accordance with national and local codes and standards. If any
parts are missing, please call Federal Signal Customer Support at
800-524-3021 or 708-534-4790.
Table 1 Electrical ratings
Operating Voltage: 24 Vdc/ac 100–265,
277 Vac 277 Vac
Flashes/Minute: 60 FPM 60 FPM 60 FPM
Maximum Operating
Current: 380 mA 210 mA 130 mA
Frequency: DC/50/60 50/60 50/60
DC In-Rush Current: 1.75 A at 24 Vdc for 5 ms
AC In-Rush Current: 2.0 A at 85 Vac and 1.5 A at 265 and
277 Vac for 0.25 ms

8
Installation and Service Instructions
Model 191XL Series LED Beacon
Table 2 Installation environment ratings
Ambient Storage Rating: –55°C to +70°C
Ambient Operating Rating: –50°C to +66°C (191XL),
–35°C to +66°C (191XL-CN)
Type 4X (water-tight and corrosion resistant) and indoor/outdoor use
IP66 (dust-tight and protection against heavy seas) and outside type
(saltwater)
Table 3 Ambient and operating temperature range for the 191XL
Temperature Code or Maximum Temperature, °C
40°C Ambient 55°C Ambient 66°C Ambient
Hazardous
Locations
24
V
100–265
Vac
277
Vac
24
V
100–265
Vac
277
Vac
24
V
100–265
Vac
277
Vac
Class I,
Div 2,
Groups A,
B, C, and D
T6 T6 T5 T5 T5 T5 T4A T4A T5
Class II, Div
1, Groups
E, F, and G
T6 T6 T6 T6 T6 T6 T6 T6 T6
Class III T6 T6 T6 T6 T6 T6 T6 T6 T6
Table 4 Ambient and operating temperature range for the 191XL-CN
Temperature Code at 66°C Ambient
Hazardous Locations T-code
Class I, Zone 2 T4
Zone 22 T85°C

9
Installation and Service Instructions
Model 191XL Series LED Beacon
Pipe-Mounting the Beacon (191XL Series)
EXPLOSION HAZARD: To reduce the risk of re or explosion, do
not install the beacon in a hazardous location if the operating
temperature exceeds the hazardous atmosphere’s ignition
temperature. Before proceeding, consult the product nameplate
and determine the operating temperature of the beacon.
NOTE: To comply with NEC Section 300-14, which requires a
minimum of 6 inches (15.25 cm) of free conductor at a junction,
when mounting the Model 191XL Series, the mounting pipe used
to join the unit to a splice box should be no longer than 10 inches
(25.4 cm).
The Model 191XL Series has provisions for mounting a 3/4" pipe
and can be mounted in any position.
1. Before mounting the beacon, ensure that the mating threads
are clean.
2. To prevent the ingress of water and dust, apply conductive
sealant to the conduit threads prior to mounting. If non-
conductive sealant is used, the enclosure must be earthed
via the provided internal grounding wire/grounding screw to
ensure proper grounding continuity.
3. In high-humidity environments when units are mounted dome
down, condensation may occur in the conduit system. Use
properly rated conduit seals/drains to prevent moisture from
entering the xture.
IMPORTANT: To prevent the connection from loosening,
tighten the xture to a MINIMUM torque of 5 ft-lb (6.8 N·m)
after threading it onto the pipe.

10
Installation and Service Instructions
Model 191XL Series LED Beacon
4. Thread the xture onto the 3/4" pipe and secure it with the set
screw.
Figure 1 Pipe-mounted beacon
191XL LIGHT
ASSEMBLY
3/4" NPT PIPE
290A6881

11
Installation and Service Instructions
Model 191XL Series LED Beacon
Surface-Mounting the Beacon (191XL Series)
To surface mount the beacon:
1. Use the mounting base as a template to mark the location of
the two mounting holes.
2. Drill a 9/32 inch (7.143 mm) hole at each mark.
3. Secure the beacon to the mounting surface with installer
supplied hardware.
Figure 2 Surface-mounted beacon
191XL-S LIGHT
ASSEMBLY
DRILL TWO 9/32"
(7.143 mm) HOLES
MOUNTING SURFACE
290A6880
INSTALLER-SUPPLIED
MOUNTING HARDWARE

12
Installation and Service Instructions
Model 191XL Series LED Beacon
Wiring the Beacon
SHOCK HAZARD: To avoid electrical shock hazards, do not
connect wires while power is applied.
EXPLOSION HAZARD: Do not disconnect the beacon while
the circuit is live or unless the area is known to be free of
ignitable concentrations. Keep the beacon tightly closed when in
operation.
Wiring must comply with the National Electrical Code or Canadian
Electrical Code and the local authority having jurisdiction.
The Model 191XL Series LED Beacon should be installed per the
NEC or CEC, STATE and LOCAL CODES. Alternate installation
locations and/or orientations should only be performed with the
approval of the authority having jurisdiction. In addition, the unit
can be mounted using an optional ceiling mount or optional wall
mount.
SHOCK HAZARD: To avoid electrical shock hazards, do not
connect wires while power is applied.
NOTE: 191XL Series beacons that are 24 V models are designed
to operate on AC and DC supply voltages. The 120-240 Vac model
is designed to operate 100 Vac to 265 Vac at 50/60 Hz. See Table 1
on page 7 for electrical ratings.
REVERSE POLARITY/MISWIRING: The 191XL Series is not
polarity sensitive, but MAY BE DAMAGED by incorrect electrical
hookup. Damage will result if the voltage rating of the particular
model is exceeded.

13
Installation and Service Instructions
Model 191XL Series LED Beacon
NOTE: Field terminations made inside of the surface mount
enclosure will require the printed circuit board (PCB) assembly
to be removed from the housing. See Figure 3 on page 16 and
follow steps 1‒4 and 6‒8 of “Changing from Flash Mode to Steady
Mode” on page 14 for the PCB removal and installation process.
The surface mount enclosure is not suitable for feed-through
branch-circuit conductors.
Wiring 120-240 Vac, 277 Vac Models
The 120-240 Vac and 277 Vac models are supplied with three
24-inch leads: white, black, and green/yellow. Connect the
black lead to the phase (hot) side of the power source and the
white lead to the common (neutral) side of the power source. If
required, the green/yellow lead in the housing is provided for
connection to an earth ground.
Wiring 24 Vac/dc Models
The 24 Vac/dc models are supplied with two 24" leads, one red
and one black. Connect the red (+) lead to the positive or phase
(hot) side of the power source and the black (–) lead to the
negative or common (neutral) side of power source.
Safety Message to Maintenance Personnel
Listed below are some important safety instructions and
precautions you should follow:
• Read and understand all instructions before operating this system.
• Any maintenance to the light system must be done with power
turned off.
• Any maintenance to the light system must be performed
by a trained electrician who is thoroughly familiar with all
applicable national and local codes in the country of use.
• Do not connect this beacon to the system when power is on.

14
Installation and Service Instructions
Model 191XL Series LED Beacon
• Do not disconnect the beacon while circuit is live or unless the
area is known to be free of ignitable concentrations. Keep the
beacon tightly closed when in operation.
• Never alter the unit in any manner. Safety of the unit may be
affected if additional openings or other alterations are made to
the internal components or housing.
• The nameplate should NOT be obscured, as it contains
cautionary and/or other information of importance to
maintenance personnel. Ensure the nameplate remains readable
if the housing exterior is painted.
• If the dome is damaged in any way, it MUST be replaced.
• After performing any maintenance, test the light system to
ensure that it is operating properly.
Failure to follow all safety precautions and instructions may result
in property damage, serious injury, or death to you or others.
Changing from Flash Mode to Steady Mode
EXPLOSION HAZARD: To prevent ignition of hazardous
atmospheres, disconnect the xture from the supply circuit
before opening it.
EXPLOSION HAZARD: Do not disconnect the beacon while
circuit is live or unless the area is known to be free of ignitable
concentrations. Keep the beacon tightly closed when in
operation.
EXPLOSION HAZARD: To maintain the vapor-tight enclosure,
do not damage the dome or threads while disassembling or
reassembling the unit. Lubricated threaded joints exposed
for long periods of time may attract small particles of dirt or
other foreign materials. Housing and cover joints should be
reassembled immediately, with all the threads fully engaged.

15
Installation and Service Instructions
Model 191XL Series LED Beacon
To change from the default Steady Mode to Flashing Mode.
1. Disconnect power to the beacon.
2. See Figure 3 on page 16. Remove the threaded dome assembly
by twisting it counterclockwise.
3. Using a No. 2 Phillips screwdriver, remove two #8-32 pan-
head screws holding the printed circuit board assembly to
the die-cast housing. Be sure to retain the two nylon screw
bushings isolating the bracket from the screws.
4. Gently lift the printed circuit board (PCB) assembly from the
housing and turn the assembly over to access the component
side of the printed circuit board.
5. See Figure 4 on page 17. Locate jumper J3 and lift the jumper
to remove it from “Flash” setting. Re-seat the jumper over the
pins labeled “Steady.”
6. Place the printed circuit board assembly back into housing,
making sure that four insulating pads are seated between
the metal bracket and die-cast housing. The bracket must
be oriented so that the notch in the bracket is aligned with
the ground screw in the die-cast housing. This step must be
carefully followed to prevent arcing and dielectric failure.
7. Slide two #8-32 pan-head screws into the screw bushings and
tighten screws to secure the printed circuit board assembly to
the die-cast housing.
8. Thread the dome assembly back onto the housing by turning it
clockwise to tighten.
SHOCK HAZARD: To avoid electrical shock hazards, do not
connect wires while power is applied.
9. Reconnect the beacon to power.

16
Installation and Service Instructions
Model 191XL Series LED Beacon
10. Test the device by applying power and verifying the steady
operation of the LED lamp.
Figure 3 PCB removed from housing
DOME ASSEMBLY
LED EMITTER
NYLON SCREW BUSHING
#8-32 PAN-HEAD SCREW
PRINTED CIRCUIT
BOARD ASSEMBLY
INSULATING PADS
CAST HOUSING
290A7308

17
Installation and Service Instructions
Model 191XL Series LED Beacon
Figure 4 Location of jumper J3 on PCB
C1
R16 C16
D6
J1
CX1
C19
U3
L2
C14 R13
+
C15
R14
+
C17
R15
R12
F1
VR1
CR1
+
C13
+
J2
J3
L3
C8
Q1
R11
R10
C10
SPADE
CY1
R9
D1
HS2
U1
C18
+
R6
C12
C2
C7
D3
D4
+
OPTO
-
o
T1
R3
D7
D2
R5
2005416A
C9
D5
1
U2
C11
C4
+
HS1
R1
STEADY FLASH
2005416A-01
J3 JUMPER LOCATION
(120-240 VAC MODEL SHOWN) 290A6286B
Cleaning the Fixture
EXPLOSION HAZARD: Never use an abrasive material or le to
remove corrosive materials from threaded surfaces. In extremely
corrosive locations, equipment should be periodically inspected
to guard against unusual deterioration and possible porosity,
since this may weaken the enclosure structurally.
Maintenance procedures sometimes require xtures to be hosed
down for good housekeeping. The circuit should be turned off
prior to hosing down the xture.
The xture should be cleaned periodically to maintain maximum
light output. Only mild, non-abrasive cleaning agents should be
used. The glass dome should be regularly inspected for scratches
and chips, and if damaged, MUST be replaced.

18
Installation and Service Instructions
Model 191XL Series LED Beacon
Lubricating the Threaded Joint
The threaded joint on the cover should be kept well lubricated
with a corrosion inhibiting grease such a petrolatum or soap-
thickened mineral oil. If corrosive materials have accumulated on
the threaded joints and cannot be removed with solvents, the parts
should be discarded and replaced.
Ordering Replacement Parts
EXPLOSION HAZARD: Substitution of components may impair
suitability for Class I, Division 2.
Typical spare parts are listed Table 5. Due to certication, certain
component parts are not available for eld replacement. Units with
this type of damage must be either replaced entirely or returned to
Federal Signal for service. To order replacement parts, please call
Federal Signal Customer Support at 708-534-4790 or 800-524-
3021.
Table 5 Replacement parts
Description Part Number
Dome Assy., Amber K8449078-01
Dome Assy., Blue K8449078-06
Dome Assy., Clear K8449078-04
Dome Assy., Green K8449078-07
Dome Assy., Red K8449078
Gasket K8449080
Grease, 8 oz Tube KR81-05-01
Dome Guard K8449090
LED Emitter, Amber K14700030-A
LED Emitter, Blue K14700030-B
LED Emitter, Green K14700030-G
LED Emitter, Red K14700030-R
LED Emitter, White K14700030-W

19
Installation and Service Instructions
Model 191XL Series LED Beacon
Getting Repair Service and Technical Assistance
Products returned for repair require a Return Authorization form.
To obtain repair service or technical assistance for the product, call
Federal Signal at 708-534-4790 or 800-524-3021. For instruction
manuals and information on related products, visit:
http://www.fedsig.com
Returning the Product for Credit
Product returns for credit require a return authorization from your
local distributor prior to returning the product to Federal Signal.
Please contact your distributor for assistance.
A product is qualied to be returned for credit when the following
conditions are met:
• Product is resalable and in the original cartons
• Product has not been previously installed
• Product is the current revision
• Product has not been previously repaired
• Product is a standard product
• Product is not a service part
All returns are subject to a re-stock fee.
Defective products that are returned within the warranty period
will be repaired or replaced at Federal Signal’s sole discretion.
Defective products do not include those products with lamp
failure.
Circumstances other than those listed above will be addressed on a
case-by-case basis.

2645 Federal Signal Drive
University Park, Illinois 60484-3167
www.fedsig.com
Customer Support 800-344-4634 • [phone]
Technical Support 800-524-3021 • [phone]