Federal Signal Corporation 27XL-024-4 User manual

25500072
REV. A1 1114
Printed in U.S.A.
Model 27XL-024-4 Explosion-Proof
LED Warning Light for Use
in Hazardous Locations
Installation and
Maintenance Instructions
français...............page 17
español...............página 33

Warranty – Seller warrants all goods for ve years on parts and 2-1/2 years
on labor, under the following conditions and exceptions: Seller warrants that
all goods of Seller's manufacture will conform to any descriptions thereof for
specications which are expressly made a part of this sales contract and at the
time of sale by Seller such goods shall be commercially free from defects in
material or workmanship. Seller reserves the right at the Seller’s discretion
to “Repair and Return” or “Replace” any item deemed defective during the
warranty period. This warranty does not cover travel expenses, the cost of
specialized equipment for gaining access to the product, or labor charges for
removal and reinstallation of the product. This warranty shall be ineffective
and shall not apply to goods that have been subjected to misuse, neglect,
accident, damage, improper maintenance, or to goods altered or repaired by
anyone other than Seller or its authorized representative, or if ve years have
elapsed from the date of shipment of the goods by Seller with the following
exceptions: lamps and strobe tubes are not covered under this warranty.
Outdoor warning sirens and controllers manufactured by Federal Warning Sys-
tems are warranteed for two years on parts and one year on labor. No agent,
employee, representative or distributor of Seller has any authority to bind the
Seller to any representation, afrmation, or warranty concerning the goods
and any such representation, afrmation or warranty shall not be deemed to
have become a part of the basics of the sales contract and shall be unenforce-
able. THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU
OF ALL OTHER WARRANTIES OR MERCHANTABILITY, FITNESS
FOR PURPOSE AND OF ANY OTHER TYPE, WHETHER EXPRESS
OR IMPLIED. These warranties shall not apply unless Seller shall be given
reasonable opportunity to investigate all claims for allegedly defective goods.
Upon Seller's instruction a sample only of allegedly defective goods shall be
returned to Seller for its inspection and approval. The basis of all claims for al-
leged defects in the goods not discoverable upon reasonable inspection thereof
pursuant to paragraph 8 hereof must be fully explained in writing and received
by Seller within thirty days after Buyer learns of the defect or such claim shall
be deemed waived.
Industrial Systems
2645 Federal Signal Drive • University Park, IL 60484-3167
Tel: [phone] • 877-289-3246 • Fax: [phone]
Email: [email protected] • www.federalsignal-indust.com

Model 27XL-024-4 3
Contents
Safety Messages to Installers .......................................................... 5
Overview of Model 27XL-024-4......................................................... 6
Unpacking the Light ......................................................................... 7
Installing the Light............................................................................. 7
Safety Messages to Maintenance Personnel................................ 11
Cleaning the Fixture........................................................................ 12
Lubricating the Threaded Joints.................................................... 12
Ordering Accessories and Replacement Parts ............................ 12
Getting Repair Service or Technical Assistance ......................... 13
Returning the Product for Credit ................................................... 14
Figures
Figure 1 Exploded view of light..........................................................9
Figure 2 Exploded view of ceiling mount .........................................10
Figure 3 Terminal block....................................................................10
Tables
Table 1 Electrical Ratings...................................................................6
Table 2 Replacement Parts..............................................................13
Table 3 Accessories .........................................................................13

© 2014 Federal Signal Corporation. All rights reserved.

5
Installation and Maintenance Manual
Model 27XL-024-4
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 device should be considered a part of the warning system
and not the entire warning system. The selection of the mounting
location for the device, 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 oper-
ating this equipment.
• Never alter the unit in any manner. Safety in hazardous loca-
tions may be endangered if additional openings or other altera-
tions are made in units specically designed for use in these
locations.
• Do not connect this light to the system when power is on.
• After installation, ensure that all threaded joints are properly
tightened.
• Keep the unit tightly closed when in operation.
• After installation, test the light system to ensure that it is oper-
ating properly.
• After testing is complete, provide a copy of these instructions
to all personnel.
• Establish a procedure to routinely check the light system for
proper activation and operation.
Failure to follow all safety precautions and instructions may result
in property damage, serious injury, or death.

6
Installation and Maintenance Manual
Model 27XL-024-4
Overview of Model 27XL-024-4
The Model 27XL-024-4 explosion-proof LED light with XLTTM
technology produces 60 high-intensity ashes per minute. This
warning light operates on 24 Vdc (see Table 1). eXtreme Light
Technology (XLT) is a break through high-intensity LED array
designed to meet the demands of industrial customers, producing
maximum light output and superior lens ll. Congurable to either
steady burning state or ashing mode (contact Federal Signal
for details), XLT provides improved performance over standard
LEDs and increased versatility while maintaining low power
consumption and vibration resistance expected from LED devices.
The 27XL features a standard low in-rush circuitry design that
provides greater compatibility with factory automation control
systems and less electrical interference with in-rush sensitive
devices. The 27XL is Type 4X rated and constructed to IP66.
Corrosion resistance is achieved with a powder coat nish applied
over the copper-free aluminum housing. It is specically designed
for explosion-proof atmospheres and/or corrosive environments.
For additional mounting options, see Table 3 on page 13.
This equipment is suitable for use in Class I, Div. I, Groups C and
D; Class I, Div. 2, Groups A, B, C and D; Class II, Div. 1, Groups
E, F, and G; Class III, or non-hazardous locations only.
These devices are intended for permanent installation and
operation in accordance with Title 33, Code of Federal
Regulations, Part 283, Subpart 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.”
Table 1 Electrical Ratings
Operational Voltage: 24 Vdc
Flashes per Minute: 60
Maximum Operating Current: 400 mA
Frequency, Hz: DC

7
Installation and Maintenance Manual
Model 27XL-024-4
Unpacking the Light
EXPLOSION HAZARD—Damaged domes can lead to
explosions that could result in serious injury or death.
Replace damaged domes.
After unpacking the light, examine it for damage that may
have occurred in transit. If the light 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
[phone] or [phone].
Installing the Light
EXPLOSION HAZARD—This light xture is not backward
compatible with older products. Do not use this light xture
with the Series A versions of model CMXC, CMXC-R, PMXC,
PMXC-R, WMXC, or WMXC-R mounting accessories. Failure to
follow this warning may result in personal injury or death.
USAGE PRECAUTION—This device is not to be used as a
Visual Public Mode Alarm Notication Appliance.
The Model 27XL-024-4 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 light can be mounted
using the optional pendant mount or optional wall mount (see
Table 2 on page 13.)
The glass dome is part of the explosion-proof housing. In
applications where the dome requires added protection, a
separately purchased metal guard (Part No. DGXC-SB) can be
readily attached.

8
Installation and Maintenance Manual
Model 27XL-024-4
Wiring must comply with Article 500 of the National Electrical
Code or Canadian Electrical Code and the local authority having
jurisdiction. For marine applications all wiring, including the
supply wire, must be stranded wire and meet the USCG (CFR46)
Section (110-113).
NOTE: The instructions below are for lights using the ceiling
mount option (CMXC-SB). For the pendant mount option (PMXC-
SB) or wall mount option (WMXC-4-SB), refer to instruction
manual 25500050.
SHOCK HAZARD—To avoid electrical shock hazards, do not
connect wires when power is applied.
REVERSE POLARITY/MISWIRING—The DC lights are polar-
ity sensitive and MAY BE DAMAGED by incorrect electrical
hookup. When connecting the DC light to the voltage supply
lines, POLARITY MUST BE OBSERVED. In addition, damage
will if the voltage rating of the model is exceeded.
To install the Model 27XL-024-4 light:
1. Install the ceiling mount on the support surface using the four
external mounting slots.
2. Remove the terminal block from the ceiling mount by loosen-
ing the two mounting screws.
3. Connect the incoming positive side (+) of the power source to
the terminal marked L+.
4. Connect the outgoing positive side (+) of the power source to
the terminal marked B.
5. Connect the incoming negative side (-) of the power source to
the terminal marked N-.
6. Connect the outgoing negative side (-) of the power source to
the terminal marked A.

9
Installation and Maintenance Manual
Model 27XL-024-4
7. If required by local building codes, connect the earth ground
wire to the green screw in the ceiling mount.
8. To prevent galling and ease maintenance, ensure that the
threads on the threaded joint are clean and lubricated with a
corrosion-inhibiting grease such as petrolatum or soap-thick-
ened mineral oils.
9. Thread the xture clockwise into the mount and tighten it
securely.
Figure 1 Exploded view of light
290A7285
3/4" NPT CONDUIT
MECHANISM
ASSEMBLY
GLASS DOME
ASSEMBLY
GLASS DOME
CEILING MOUNT
MAIN
HOUSING
LENS-CLIP
SCREW
LENS CLIP
LENS
LED ARRAY

10
Installation and Maintenance Manual
Model 27XL-024-4
Figure 2 Exploded view of ceiling mount
290A7281
CLOSE-UP
PLUG
TERMINAL BLOCK
TERMINAL-
BLOCK SCREW (2)
EXTERNAL
MOUNTING SLOTS (4)
THE CMXC-SB IS NOT SUITABLE FOR USE WITH
THROUGH-BRANCH CIRCUIT CONDUCTORS.
Figure 3 Terminal block
290A7282
OUTGOING
NEGATIVE (–)
OUTGOING
POSITIVE (+)
INCOMING
NEGATIVE
(–)
INCOMING
POSITIVE (+)
N -
L +
A
B

11
Installation and Maintenance Manual
Model 27XL-024-4
Safety Messages to Maintenance Personnel
Listed below are some important safety instructions and precautions
you should follow:
• Read and understand all instructions before maintaining or operat-
ing this system.
• EXPLOSION HAZARD —Substitution of any component
may impair suitability for Class 1, Division 2.
• EXPLOSION HAZARD —Do not disconnect the light while
the circuit is live or unless the area is known to be free of
ignitable concentrations.
• 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 in accordance with NEC Guidelines and
local codes.
• Never alter the unit in any manner. Safety in hazardous loca-
tions may be endangered if additional openings or other altera-
tions are made in units specically designed for use in these
locations.
• The nameplate, which may contain cautionary or other infor-
mation of importance to maintenance personnel, should NOT
be obscured in any way. Ensure that the name-plate remains
readable when the housing’s exterior is painted.
• If the glass dome is damaged in any way it MUST be replaced.
• After performing any maintenance, test the light system to
ensure that it operates properly.
Failure to follow all safety precautions and instructions may result
in property damage, serious injury, or death.

12
Installation and Maintenance Manual
Model 27XL-024-4
Cleaning the Fixture
The xture should be cleaned periodically to maintain maximum
light output. Use only mild, non-abrasive cleaning agents. The
glass dome should be regularly inspected for scratches and chips,
and if damaged, must be replaced.
NOTE: Maintenance procedures sometime require xtures to be
hosed down for good housekeeping. The circuit must be turned
OFF and the dome MUST be allowed to cool to ambient room
temperature before cleaning.
Lubricating the Threaded Joints
EXPLOSION HAZARD—Never use an abrasive material or le to
remove corrosive products 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.
The threaded joints on the pendant mount should be well lubricated.
If corrosive products have accumulated on the explosion-proof joints
and cannot readily be removed with solvents, the parts should be
discarded and replaced.
Ordering Accessories and Replacement Parts
EXPLOSION HAZARD–Damaged domes can lead to explo-
sions that could result in serious injury or death. If the dome is
damaged, it MUST be replaced.
Typical spare parts are listed in Table 2. 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 accessories and replacement parts, call Federal Signal
Customer Support at 708-534-4756 or 877-289-3246.

13
Installation and Maintenance Manual
Model 27XL-024-4
Table 2 Replacement Parts
Description Part Number
Fresnel Lens, Clear K8550C292
Fresnel Lens, Blue K8550C292-01
Fresnel Lens, Amber K8550C292-02
Fresnel Lens, Red K8550C292-03
Fresnel Lens, Green K8550C292-04
Fresnel Lens, Magenta K8550C292-05
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
Glass Dome Assembly K8436147
Table 3 Accessories
Description Part Number
Dome Guard DGXC-SB
Pendant Mount PMXC-SB
Wall Mount, 4-Wire WMXC-4-SB
Getting Repair Service or Technical Assistance
Products returned for repair require a Return Authorization form
from your local distributor or from Federal Signal. To obtain repair
service or technical assistance from Federal Signal, call 708-534-
4756 or 877-289-3246.
For instruction manuals and information on related products, visit:
http://www.federalsignal-indust.com.

14
Installation and Maintenance Manual
Model 27XL-024-4
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.

blank page

16
Industrial Systems
2645 Federal Signal Drive • University Park, IL 60484-3167
Tel: [phone] • 877-289-3246 • Fax: [phone]
Email: [email protected] • www.federalsignal-indust.com

17
25500072
REV. A1 1114
Imprimé aux États-Unis
Lumineux antidéagrant
à DEL 27XL-024-4
pour endroits dangereux
Instructions d’installation
et d’entretien

18
Garantie – Le vendeur offre pour tous les produits une garantie de cinq ans sur les
pièces et de 2,5 ans sur la main-d’oeuvre, selon les conditions et exceptions suivantes :
le vendeur garantit que tous les produits qu’il fabrique seront conformes aux descriptions
correspondant aux spécications qui font expressément partie de ce contrat de vente et
qu’au moment de la vente par le vendeur, de tels produits devront être exempts de défauts
de matériel et de fabrication. Le vendeur se réserve le droit, à sa discrétion, de « réparer et
renvoyer » ou de « remplacer » tout article jugé défectueux durant la période de garantie.
Cette garantie ne couvre pas les frais de voyage, le coût de l’équipement spécialisé pour
avoir accès au produit ou les frais de main-d’oeuvre liés au retrait et à la réinstallation du
produit. Cette garantie sera inopérante et ne s’appliquera pas aux produits qui ont subi un
mauvais usage, une négligence, un accident, des dommages ou un entretien inapproprié,
ou aux produits modiés ou réparés par toute personne autre que le vendeur ou son
représentant autorisé, ou si cinq ans se sont écoulés depuis la date de l’envoi des produits
par le vendeur avec les exceptions suivantes : les lampes et les tubes stroboscopiques ne
sont pas couverts par cette garantie. Les sirènes d’alarme extérieures et les appareils de
contrôle fabriqués par Federal Warning Systems sont couverts par une garantie de deux
ans sur les pièces et de un an sur la main-d’oeuvre. Aucun agent, employé, représentant
ou distributeur du vendeur n’a autorité pour lier celui-ci à une représentation, afrmation
ou garantie relative aux produits et une telle représentation, afrmation ou garantie ne
pourra pas être considérée comme faisant partie des généralités du contrat de vente et sera
inexécutable. LES GARANTIES CI-DESSUS SONT EXCLUSIVES ET TIENNENT
LIEU DE TOUTES LES AUTRES GARANTIES DE QUALITÉ MARCHANDE, DE
COMPATIBILITÉ À UN USAGE PARTICULIER OU D’UN AUTRE TYPE, QU’ELLES
SOIENT EXPRESSES OU IMPLICITES. Ces garanties ne s’appliqueront pas si le
vendeur n’a pas la possibilité raisonnable d’enquêter sur toutes les réclamations de
produits présumés défectueux. À la demande du vendeur, un seul échantillon des produits
présumés défectueux lui sera renvoyé pour inspection et approbation. La raison de toute
réclamation pour des défauts présumés dans les produits ne pouvant être découverts
après une inspection raisonnable en vertu du paragraphe 8 ci-contre doit être entièrement
expliquée par écrit et reçue par le vendeur dans les trente jours après que l’acheteur a pris
connaissance du défaut. Sinon, une telle réclamation sera considérée comme nulle.
G
A
R
A
N
T
I
E
ans
Industrial Systems
2645 Federal Signal Drive • University Park, IL 60484-3167
Tel: [phone] • 877-289-3246 • Fax: [phone]
Email: [email protected] • www.federalsignal-indust.com

Modèle 27XL-024-4 19
Figures
Figure 1 Vue éclatée de la lumière ..................................................25
Figure 2 Vue éclatée du support pour plafond.................................26
Figure 3 Bloc de jonction .................................................................27
Tableaux
Tableau 1 Capacités électriques......................................................23
Tableau 2 Pièces de rechange ........................................................29
Tableau 3 Accessoires.....................................................................30
Table des matières
Messages de sécurité destinés aux installateurs ........................ 21
Aperçu du modèle 27XL-024-4 .......................................................22
Déballage de la lumière ..................................................................23
Installation de la lumière.................................................................23
Messages de sécurité destinés au personnel d’entretien...........27
Nettoyage de l’appareil ...................................................................28
Lubrication des joints letés........................................................28
Commande d’accessoires et de pièces de rechange .................. 29
Service de réparation et assistance technique ............................ 30
Renvoi du produit pour obtention d’un crédit..............................30

© 2014 Federal Signal Corporation. Tous droits réservés.