Federal Signal Corporation Commander 371-120 Manual

256914G
REV. G 613
Printed in U.S.A.
Commander® Rotating Light
Models 371-120 and 371L-120
Installation and
Maintenance Manual
français...............page 21
español...............página 41

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
Systems 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 unenforceable. 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
alleged 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] • 1-877-289-3246 • Fax: [phone]
www.federalsignal-indust.com • www.fs-isys.com

Models 371-120 and 371L-120
3
Contents
Safety Messages to Installers .......................................................... 5
An Overview of Models 371-120 and 371L-120............................... 6
Unpacking the Light.......................................................................... 7
Mounting the Light ............................................................................ 8
Pipe Mounting the Light .......................................................... 8
Surface Mounting the Light ..................................................... 9
Adjusting the Light Beam................................................................. 9
Wiring the Light ............................................................................... 10
Safety Messages to Maintenance Personnel................................ 13
Replacing the Lamp ....................................................................... 14
Maintaining the Model 371/371L..................................................... 15
Cleaning the Dome.......................................................................... 16
Getting Repair Service or Technical Assistance ......................... 16
Ordering Accessories and Replacement Parts ............................ 16
Returning a Product for Credit....................................................... 17
Tables
Table 1 Electrical and environmental ratings .....................................7
Table 2 Dimensions ............................................................................7
Table 3 Accessories .........................................................................16
Table 4 Replacement parts .............................................................. 17

4
Models 371-120 and 371L-120
Contents
Figures
Figure 1 Mounting options .................................................................8
Figure 2 Adjusting the light beam ....................................................10
Figure 3 Connecting leads to the terminal block..............................12
Figure 4 Replacing the lamp ............................................................15

5
Installation and Maintenance Instructions
Models 371-120 and 371L-120
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 light should be
considered a part of the warning system and not the entire warning
system.
The selection of the mounting location for the light, 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 light.
• Donotconnectthislighttothesystemwhenpowerison.
• Afterinstallation,makesurethatallsetscrewsandthreaded
joints are properly tightened.
• Afterinstallation,testthelighttomakesurethatitisoperating
properly.
• Aftertestingiscomplete;provideacopyofthisinstruction
booklettoallpersonnel.
• Establishaproceduretoroutinelycheckthelight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 Instructions
Models 371-120 and 371L-120
An Overview of Models 371-120 and 371L-120
Federal Signal Models 371-120 and 371L-120 incandescent
warning lights have a powerful sealed beam lamp that rotates 360
degrees within a glass or polycarbonate dome. Power is delivered
to the Commander®rotating lamp by a unique collector ring. The
lampitselfismountedinapivotingyoke.Thisallowsthebeam
angle to be adjusted through 90 degrees from horizontal to vertical.
Changing the beam angle enables the you to create unique light
patterns and direct the light for better visibility.
The Model 371 features a 200-watt sealed-beam lamp and a high-
temperature-resistant glass dome. The glass dome of the 371 is
ideal for applications such as steel mills or arc furnaces/smelters
where high ambient temperatures or red hot materials would melt
or damage the dome. The Model 371 is available in three colors:
amber, blue, and red.
The Model 371L features a 100-watt sealed-beam lamp and an
impact-resistant polycarbonate dome. The thinner polycarbonate
dome allows more light to pass through while protecting the lamp.
TheModel371Lisavailableinvecolors:amber,blue,clear,
green, and red. The dome-and-ring assembly screws on, providing
access to the interior of the light.
Thebasefeaturestexturedblackpowderpaintforgreater
corrosion-resistance. Wiring can be routed through the pipe-mount
openinginthebottomofthelightorthetwosideknockoutscan
be used for side entry wiring. Installation can be surface or 1-inch
NPT pipe mount.
Optionalwallandcornermountbracketsareavailable.The
LWMB2wall-mountbracketandtheLCMB2corner-mount
bracketcanbeusedtomounttheModel371/371L.Forsurface
mounting on solid substrates, the separately purchased Model
371BRCKTthree-pointsurface-mountbracketisavailable.
The 371-120 and 371L-120 are Type 4X, IP66 rated, UL and cUL
ListedandCSACertied.

7
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Unpacking the Light
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
708-534-4756 or 877-289-3246.
Table 1 Electrical and environmental ratings
Operating Voltage: 120 Vac 50 Hz/60 Hz
Flash Rate: 60 FPM
Candle Power:
371
371L
36,000
20,000
Lamp Life: 2,000 Hours
Light Source:
371
371L
200 W Sealed Beam
100 W Sealed Beam
Operating
Temperature:
–31 °F to 150 °F
(–35 °C to 66 °C)
Environmental
Ratings:
Type 4X, IP66
Table 2 Dimensions
Height: 11.38 in (288.9 mm)
Diameter: 9.12 in (231.6 mm)
Net Weight:
371
371L
13.25 lb (6.0 kg)
9.8 lb (4.4 kg)
Shipping Weight:
371
371L
14.3 lb (6.5 kg)
10.8 (4.9)

8
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Mounting the Light
TheModel371/371Llightisdesignedformountingonaat
horizontal surface or on a 1" NPT pipe. For surface mounting
onsolidsubstrates,theseparatelypurchasedModel371BRCKT
surfacemountingbracketcanbeused.Ifconduitside-entriesareto
be used, disassemble the light as described in “Wiring the Light”
onpage10andremoveoneormoreknockoutswithablunttool
beforemountingthelight.Usealetoremoveexcessasharound
theknockout.
Figure 1 Mounting options
371 LIGHT
ASSEMBLY
PIPE MOUNT SURFACE MOUNT
GASKET
MOUNTING
SURFACE
1/4" FLATWASHERS
DRILL THREE 9/32"
(7.143 mm) HOLES
1/4" SCREWS
1" NPT
PIPE
290A7364
Pipe Mounting the Light
Attachthelighttothe1-inchNPTpipebythreadingthelight
clockwiseonthepipe(Figure1).Forinformationonmaking
the electrical connections, see “Wiring the Light” on page 10.

9
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Surface Mounting the Light
Tomountthelightonaatsurface:
1. Using thegasketasatemplate,scribefourdrill-position
marksonthemountingsurface(Figure1).
2. Drilla9/32"(7.1mm)diameterholeateachoftheoutside
drillpositionmarksformounting.
3. Drillorpuncha1-3/8"(34.9mm)diameterholeatthe
centerdrill-positionmarkforthewireentry.
4. Attachsuitable1"NPThuborconnectortoconduit
entrance in bottom of light. For Type 4X/IP66 applications,
thehuborconnectormustbesuitablyrated(Myers®
STTTB-2 or T&B®H100-TBhubsarerecommended.)
5. Setthelightonthegasketandattachittothemounting
surface with the provided 1/4" screws and washers.
6. Forinformationonmakingtheelectricalconnections,see
the next section.
Adjusting the Light Beam
The light is shipped from the factory with the lamp in the
horizontal position.
To change the angle of the lamp:
1. SeeFigure2onpage10.Removethedomeassemblyby
grasping the die-cast ring attached to the dome and turning it
counter-clockwise.
2. Removethelockingscrew.
3. Loosen the two pivot screws and adjust the lamp to the
desired position.
4. Tighten the two pivot screws to secure the lamp in position.
5. Reinstallthedomeassembly.

10
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Figure 2 Adjusting the light beam
DOME ASSEMBLY
DIE CAST RING
TURN DIE-CAST RING
COUNTER-CLOCKWISE
TO REMOVE
LOCKING SCREW
ADJUST LAMP TO
DESIRED POSITION
PIVOT SCREWS (2)
290A7365
Wiring the Light
SHOCK HAZARD—To avoid electrical shock hazards, do not
connect wires while power is applied.
The Model 371/371L comes assembled from the factory with
two color-coded leads for wiring to a junction box. If desired, the
factory leads can be removed and the supply connections can be
directlymadetotheterminalblocklocatedonthebacksideofthe
motor mounting base as described below.
To wire the light:
1. Disassemblethelight(Figure3onpage12):

11
Installation and Maintenance Instructions
Models 371-120 and 371L-120
a) Removedomeassemblybygraspingthedie-castring
attachedtothedomeandturningitcounter-clockwise.
b) Removethree#10hexheadscrewsthatsecuremotor
mounting base to housing.
c) Removemotormountingbase.
d) If desired, remove the factory supplied leads from the
terminalblock.
2. If you are using conduit side-entries, attach a Myers®
STTTB-2 or a T&B®H075TBH 3/4-inch NPT conduit hub
witha3/4-inchNPTclosenipple(bothuser-supplied)to
the housing and tighten the hub securely. When side entries
are used, the bottom 1-inch NPT conduit entry must be
pluggedwithathreadedplug(user-supplied).(SeeTable3
“Accessories”onpage17).
3. Routethesupplywires(10AWGto16AWG)intothelight
housing,takingcaretokeepwiresclearofthemotorfan.
4. Stripamaximumof0.28in(7mm)ofinsulationfromthe
ends of the power leads. Connect the wires to the terminal
blockbyinsertingthestrippedendsofthewiresintothe
connectors as far as they can travel.
5. Tighten the clamping screw. The maximum tightening
torqueis7.0in-lb(0.8N•m).
IMPORTANT: Proper grounding of the light requires
two connections to a solid earth ground.
6. See Figure 3 on page 12. Connect the earth ground to the
terminalblockandthegreengroundscrewlocatedinlight
housing.
7.  Reassemblethelightandtestitforproperoperation.

12
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Figure 3 Connecting leads to the terminal block
DOME
ASSEMBLY
DIE CAST
RING
GASKET
GROUND
SCREW
MOTOR
MOUNTING
BASE
SCREWS, #10
HEX HEAD (3)
BASE
TURN DIE CAST RING
COUNTER-CLOCKWISE
TO REMOVE
290A7360
A
0.28"
(7mm)
TERMINAL
BLOCK
A

13
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Safety Messages 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the
power turned off.
• Anymaintenancetothelightsystemmustbeperformedbya
trained electrician in accordance with NEC/CEC Guidelines
and local codes.
• Neveraltertheunitinanymanner.Safetymaybeendangeredif
additional openings or other alterations are made to units.
• Thenameplate,whichcontainscautionaryorotherinformation
of importance to maintenance personnel, should not be
obscured.
• Ifthedomeisdamagedinanyway,thecompletedome
assembly 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.

14
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Replacing the Lamp
SHOCK HAZARD—To avoid electrical shock hazards, do not
connect wires while power is applied.
To replace the lamp:
1. Disconnectpowertothelight.
2.  Removethedomeassemblybygraspingthedie-castring
attachedtothedomeandturningitcounter-clockwise.
NOTE:Ifthedomeassemblyisdifculttoremove,placea
screwdriver blade against one of the four bosses on the die-
cast ring attached to the dome. Gently tap the screwdriver
handle to loosen the dome assembly from the housing.
MAINTAIN WATERTIGHTNESS—To maintain the
watertight enclosure, do not damage 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. Re-
assemble joint immediately after performing maintenance.
3. Lift the connector from the lamp terminals.
4. Lift the spring clip at the top of the lamp and rotate the curved
lamp retainer toward the front of the lamp. Lift out the lamp.
5. Install the replacement lamp by placing the edge of the lamp
intothegrooveofthedie-castlampholder.Rotatethelampso
that its prongs point straight up.
6. Rotatethelampretainerupuntilthespringclipsnapsoverthe
edge of the lamp.
7. Replacetheconnectoronthelampterminals.
8. Replacethedomeassemblybyturningitclockwiseuntilitis
seatedsecurelyagainstthegasket.
9. Test the light for proper operation.

15
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Figure 4 Replacing the lamp
DOME ASSEMBLY
DIE CAST RING
TURN DIE CAST RING
COUNTER-CLOCKWISE
TO REMOVE
LAMP
LAMP RETAINER
LIFT UP SPRING CLIP
AND ROTATE LAMP
RETAINER FORWARD
CONNECTOR
LAMP TERMINALS
290A7366
Maintaining the Model 371/371L
Establishing a regular maintenance schedule for the Model
371/371L extends the life of the light and ensures safety.
Periodicallycheckthatthelightoperatesproperly.Also,inspect
thedomeforcracks,crazing(hairlinecracks),discoloration,and
other defects.
• Lubricatethelampshaftbearingswithalightmachineoilevery
12monthsor5,000hoursofservice,whichevercomesrst.
• Thewormandwormgearrarelyrequirelubrication.However,
if lubrication is required use a light high-quality grease.

16
Installation and Maintenance Instructions
Models 371-120 and 371L-120
• Themotorisequippedwithsealedbearingsandrequiresno
maintenance.
• Thethreadeddomeringjointshouldbewelllubricatedwith
petroleumorasoap-thickenedmineraloil.Ifcorrosiveproducts
have accumulated on joints and cannot readily be removed with
solvents, the parts should be discarded and replaced.
Cleaning the Dome
NOTE:Maintenanceproceduressometimesrequirexturestobe
hoseddownforgoodhousekeeping.Theelectricalcircuitshould
be turned off prior to hosing down the light.
Clean the dome periodically to maintain maximum light output.
Use only mild, non-abrasive cleaning agents.
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.
Ordering Accessories and Replacement Parts
Typical spare parts are listed in Table 4. To order accessories
and replacement parts, call Federal Signal Customer Support at
708-534-4756 or 877-289-3246.
Table 3 Accessories
Description Part Number
Wall Mount Bracket LWMB2
Corner-Mount Bracket LCMB2
Mounting Bracket, Surface 371BRCKT
Kit, Shock Mount K8459A076
Conduit Hub Kit, 3/4" NPT K8459138
Close-Up Plug, 1" NPT K8459130

17
Installation and Maintenance Instructions
Models 371-120 and 371L-120
Table 4 Replacement parts
Description Part Number
Plastic Dome Assembly, Amber (371L) K8459125
Plastic Dome Assembly, Blue (371L) K8459125-01
Plastic Dome Assembly, Clear (371L) K8459125-02
Plastic Dome Assembly, Green (371L) K8459125-03
Plastic Dome Assembly, Red (371L) K8459125-04
Glass Dome Assembly, Amber (371) K8459126
Glass Dome Assembly, Blue (371) K8459126-01
Glass Dome Assembly, Red (371) K8459126-02
Gasket, Dome Ring K8459123
Gasket, Surface Mount K8459127
Lamp, 100 W, (125 V/130 V)
(100PAR46/3NSP)
K8107A130
Lamp, 200 W, (125 V/130 V)
(200PAR46/3NSP)
K8442A039
Kit, Motor Replacement K8459A113
Brush and Spring K8442A028
Returning a 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

18
Installation and Maintenance Instructions
Models 371-120 and 371L-120
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

19
Installation and Maintenance Instructions
Models 371-120 and 371L-120

20
Industrial Products
2645 Federal Signal Drive
University Park, IL 60484-3167
Phone: [phone] • 1-708-534-4756 • Fax: [phone]
www.federalsignal-indust.com • www.fs-isys.com
© 2013 Federal Signal Corporation. All rights reserved.