Ecco 27 Series Owner's manual

Page 1 of 18
IMPORTANT! Read all instructions before installing and using. Installer: This manual must be
delivered to the end user. This manual assumes installation by a suitably qualified Automotive Technician.
ECCO 27 Series Lightbars are versatile and powerful warning devices suitable for a range of vehicle types and duties. There are numerous
options and lengths available and the lightbars can either be mounted permanently to the vehicle or mounted using an optional roof
mounting kit. The 27 Series is suitable for many vehicle applications and features reflective LED modules, a durable aluminum chassis
and polycarbonate lenses. Available in seven standard configurations, the 27 Series can be configured with either centrally controlled or
independent flashing warning modules, offering a choice of either 3, 8, 12 or 22 LEDs per module, including dual color options. Stop-Tail-
Indicator, worklamp/takedown and alley light modules are also available as well as an integrated Safety Director to control the rear warning
modules independently.
Unpacking and Pre-Installation:
Carefully remove the lightbar and place it on a flat surface. Examine the unit for transit damage and locate all parts. If damage is found or
parts are missing, contact the transit company or ECCO. Do not use damaged or broken parts.
Ensure the lightbar voltage is compatible with the planned installation.
Installation and Operation Instructions
27 Series IF and CC Lightbars

Page 2 of 18
WARNING!
Failure to install or use this product according to manufacturer’s recommendations may result in property
damage, serious bodily/personal injury, and/or death to you and those you are seeking to protect!
!
Do not install and/or operate this safety product unless you have read and understand the safety
information contained in this manual.
1. Proper installation combined with operator training in the use, care and maintenance of emergency warning devices are essential to
ensure the safety of emergency personnel and the public.
2. Emergency warning devices often require high electrical voltages and/or currents. Exercise caution when working with live electrical
connections.
3. This product must be properly grounded. Inadequate grounding and/or shorting of electrical connections can cause high current
arcing, which can cause personal injury and/or severe vehicle damage, including fire.
4. Proper placement and installation is vital to the performance of this warning device. Install this product so that output performance of
the system is maximized and the controls are placed within convenient reach of the operator so that s/he can operate the system
without losing eye contact with the roadway.
5. It is the responsibility of the vehicle operator to ensure daily that all features of this product work correctly. In use, the vehicle operator
should ensure the projection of the warning signal is not blocked by vehicle components (i.e., open trunks or compartment doors),
people, vehicles or other obstructions.
6. The use of this or any other warning device does not ensure all drivers can or will observe or react to an emergency warning signal.
Never take the right-of-way for granted. It is your responsibility to be sure you can proceed safely before entering an intersection, drive
against traffic, respond at a high rate of speed, or walk on or around traffic lanes.
7. This equipment is intended for use by authorized personnel only. The user is responsible for understanding and obeying all laws
regarding emergency warning devices. Therefore, the user should check all applicable city, state, and federal laws and regulations.
The manufacturer assumes no liability for any loss resulting from the use of this warning device.
8. This product may contain high intensity LEDs staring directly into these lights could result in temporary and/or permanent vision
impairment.
Installation & Mounting:
Mounting
Before proceeding with installation, plan all wiring and cable routing. Select the mounting location for the lightbar on a flat, smooth surface
and center the unit across the width of the vehicle. The mounting location for the lightbar should be chosen such that the lightbar is level and
visibility to approaching traffic is optimized.
Caution:
When drilling into any vehicle surface, make sure that the area is free from any electrical wires, fuel lines, vehicle upholstery, vehicle
support members, etc. that could be damaged.
!
Specications:
Cross Section: 2.7” x 12.3”
Input Voltage: 10-16 VDC
Nominal Current @ 12.8 VDC:
3 LED Module: 0.5 A max.
8 LED Module: 1.0 A max.
12 LED Module: 1.5 A max.
3 LED WL, TD Pair: 1.0 A max.
5 LED AL, WL, TD Pair: 1.6 A max.
STT Pair: 1.0 A max
DOT Strip: 0.2 A max.
Flash Rate: See Wiring Section
Temp. Range: -22°F to 122°F
-30°C to 50°C

Page 3 of 18
FIGURE 2
FIGURE 1
OVERSIZED FLAT WASHER
1/4” NYLON INSERT NUT
ADJUSTABLE FOOT
COVER
RUBBER PAD
1/4” - 20 HEX BOLT
VEHICLE
ROOF
FLAT ROOF
CURVED ROOF
WEDGE RUBBER PAD FLAT RUBBER PAD
Permanent Mounting with Adjustable Mounting Feet
1. Loosen the 5/16” nuts to allow the mounting feet to slide along the base. Place the lightbar over the center of the vehicle and slide the
mounting feet into position near the curved edges of the roof when possible.
2. Secure the feet in location on the lightbar by tightening the four nuts on each foot.
3. With the feet positioned, remove the adjustable foot cover and mark the location of the mounting hole centers on the roof of the vehicle.
Remove the lightbar and drill the mounting holes as marked. Note: The center distance between the mounting holes in an adjustable
mounting foot is 11.1” or 281.94 mm.
4. Attach the appropriate foot pad for the curvature of the roof surface per FIGURE 2. Secure the lightbar feet to the vehicle using the
supplied 1/4”-20 hardware and reattach the adjustable foot cover as shown in FIGURE 1. See the Wiring section of this manual for
further wiring instructions.

Page 4 of 18
FIGURE 4
FIGURE 3
RUBBER STANDOFF
OVERSIZED FLAT WASHER
5/16” NYLON INSERT NUT
5/16”-18 CARRIAGE BOLT
VEHICLE ROOF
CURVED ROOF EDGE
Permanent Mounting without Adjustable Mounting Feet
1. Insert the four 5/16”-18 carriage bolts in the channels on the under side of the light bar.
2. Place the lightbar over the center of the vehicle and slide the mounting hardware into position near the curved edge when possible as
shown in FIGURE 4.
3. With the mounting hardware positioned, mark the location of the mounting hole centers on the roof of the vehicle. Remove the lightbar
and drill the mounting holes as marked.
4. Mount the lightbar as shown in FIGURE 3 and secure the unit. See the Wiring section of this manual for further wiring instructions.

Page 5 of 18
FIGURE 5
1/2” BOLT AND MOUNTING
HARDWARE SUPPLIED BY
CUSTOMER MOUNTING SURFACE
5/16-18 NUT
OVERSIZED FLAT WASHER
BRACKET
5/16-18 CARRIAGE BOLT
LIGHTBAR
Pylon/Headache Rack Mounting
1. Insert the four (4) 5/16”-18 carriage bolts in the channels on the under side of the light bar and loosely attach the mounting brackets.
2. Place the lightbar on the vehicle and slide the mounting brackets into position.
3. Secure the brackets to the lightbar with the supplied washers and nuts as shown in FIGURE 5.
4. With the mounting brackets positioned, mark the locations of the mounting hole centers on the roof of the vehicle. Remove the bar and
drill the mounting holes as marked.
5. Secure the mounting brackets to the vehicle with customer supplied hardware. See the Wiring section of this manual for further wiring
instructions.

Page 6 of 18
Notes:
1. Larger wires and tight connections will provide longer service life for components. For high current wires it is highly recommended
that terminal blocks or soldered connections be used with shrink tubing to protect the connections. Do not use insulation displacement
connectors (e.g., 3M Scotchlock type connectors).
2. Route wiring using grommets and sealant when passing through compartment walls. Minimize the number of splices to reduce
voltage drop. High ambient temperatures (e.g., under-hood) will significantly reduce the current carrying capacity of wires, fuses, and
circuit breakers. All wiring should conform to the minimum wire size and other recommendations of the manufacturer and be protected
from moving parts and hot surfaces. Looms, grommets, cable ties, and similar installation hardware should be used to anchor and
protect all wiring.
3. Fuses or circuit breakers should be located as close to the power takeoff points as possible and properly sized to protect the wiring
and devices.
4. Particular attention should be paid to the location and method of making electrical connections and splices to protect these points from
corrosion and loss of conductivity.
5. Ground termination should only be made to substantial chassis components, preferably directly to the vehicle battery.
6. Circuit breakers are very sensitive to high temperatures and will “false trip” when mounted in hot environments or operated close to
their capacity.
Important!
This unit is a safety device and it must be connected to its own separate, fused power point to assure its continued operation should any
other electrical accessory fail. Do not wire in parallel with any other accessory.
Wiring Instructions:
Caution:
Disconnect the battery before wiring up the lightbar, to prevent accidental shorting, arcing and/or electrical shock.
!
Strap Kit Mounting
Important!
Mounting brackets are specific to the vehicle model. Please make sure the brackets are suitable for the vehicle before
installation.
FIGURE 6
ADJUSTABLE FOOT
5/16” LOCK/SPLIT
WASHER
5/16”-18
PAN HEAD
PHILLIPS
SCREW
STRAP MOUNT
BRACKET
NO. 8 SHEET
METAL SCREW
VEHICLE ROOF
SECTION
1. Loosen the 5/16” nuts to allow the mounting feet to slide along the base of the lightbar. Loosely attach the mounting strap to each foot
using the supplied pan head phillips screws and lock washers.
2. Center the lightbar across the vehicle and align the strap mount brackets to hook into the gutter of the vehicles door frame as shown in
FIGURE 6.
3. Secure the feet to the lightbar in location by tightening the four nuts on each foot.
4. Slowly tighten the pan head screws to secure the strap mount brackets to the lightbar feet and around the door gutters, keeping the
lightbar centered and level. Ensure the doors close completely and secure each strap mount bracket to the door frame. Mounting
geometry and parts will vary for different vehicles. See the Wiring section of this manual for further wiring instructions.

Page 7 of 18
IF Series Wiring
An IF series lightbar has a dedicated ground wire and one or more +power wires routed to the modules. The black ground wire should be
connected directly to the battery. The amp ratings for each module type are detailed in the specifications section of this installation guide.
Before attempting to connect the lightbar wiring harness, refer to the configuration specific wiring key included with the lightbar for the func-
tions of each wire. Use an appropriate high-temperature wiring if it passes through the engine compartment. Use cable ties and grommets to
secure and protect all cables and wires.
IF Series Directional and Corner Module Flash Pattern Selection
Directional and Corner Module
Flash Patterns
Order Flash Pattern
1 Cycle Flash (Default)
2 NFPA Quad Flash 80 FPM
3 Steady-burn
4 Single Flash 75 FPM
5 Single Flash 150 FPM
6 Single Flash 300 FPM
7 Double Flash 75 FPM
8 Double Flash 150 FPM
9 Triple Pop Flash 150 FPM
10 Triple Flash 150 FPM
11 Quad Pop Flash 75 FPM
12 Quad Pop Flash 150 FPM
13 Five Flash 70 FPM
14 Five Flash 150 FPM
15 Modular Flash
The flash pattern on each individual light head can be cycled to the next flash pattern (shown in TABLE 1) by briefly shorting together the 2
short pads with a wire or the blade of a screwdriver as shown in FIGURE 7. The light head can be reset to the default flash pattern by short-
ing the pads together for longer than 5 seconds. A thin layer of conformal coat may need to be scraped from the surface of the short pads if
the modules aren’t changing patterns easily.
TABLE 1
FIGURE 7
SHORT PADS

Page 8 of 18
Master/Slave Corner Module Operation
The 360 degree corner modules consist of “master” and “slave” LED light engines and a single integrated heatsink bracket. The “master”
circuit board, in the rear position, must be powered for the “slave”, in the front position, to flash. Corner module pairs are connected by a
sync wire. The flash pattern is set and determined by the master LED module in a module pair.
Dimming Operation
27 Series LED modules may be equipped with a low power “Dimming” mode. When DIM is engaged the LED’s will operate in a reduced
power mode which reduces the light output. Use caution when using the DIM setting to ensure that motorists can clearly see the emergency
vehicle. Failure to use adequate lighting for the circumstances can cause motorists to fail to see the emergency vehicle and lead to serious
personal injury or death. Use of the DIM setting may cause emergency lights to not comply with applicable emergency warning light stan-
dards. Please contact ECCO directly for further information.
CC Series Wiring
A CC series lightbar has a 2-wire power cable and a 16-wire control cable. The entire power load of the bar goes through the power cable.
The black ground wire should be connected directly to the battery. The 10 AWG red power wire requires a constant 10 to 16V power source
with a customer supplied in line fuse. To select an appropriately rated ATO (regular) or Maxi Fuse, add the amp ratings, found in the speci-
fications section, of the modules in your configuration specific lightbar and based on that sum, insert a fuse of the next larger size (to be no
larger than a 30 A fuse). The 16 control cable wires carry only low power (30 mA average) input signals to control the light bar functions and
must be routed to the output of a control switch (or directly to multiple switches).
Before attempting to connect the lightbar wiring harness, refer to the configuration specific wiring key included with the lightbar for the con-
figuration specific functions of each wire. Use appropriate high-temperature wiring if it passes through the engine compartment. Use cable
ties and grommets to secure and protect all cables and wires.
TABLE 2
Standard CC Function Wire Denitions
Function Wire Color Function Description Notes
GRN/BLK L1 Level 1 Emergency Mode
WHT/BLK L2 Level 2 Emergency Mode
RED/BLK L3 Level 3 Emergency Mode
RED Arrowstik Left Left Arrowstick Overrides L1, L2, & L3 for rear of lightbar
ORG Arrowstick Right Right Arrowstick Overrides L1, L2, & L3 for rear of lightbar
WHT Drivers Side Cut Cut Driver Side Directional and Alley
Lights
Designed to interface with the driver’s door
switch
BLK/RED Pattern Select Pattern Select
BLK Take Down Flash Take Down/Work Light Wig/Wag Flash
ORG/BLK Take Down Lights Take Down/Work Light Steady Burn Overrides Take Down Flash
BLU/WHT Alley Light Flash Enables Alley Light Wig/Wag Flash
BLK/WHT Left Alley Light Left Alley Steady Burn Overrides Alley Light Flash
RED/WHT Right Alley Light Right Alley Steady Burn Overrides Alley Light Flash
GRN/WHT Front Cut-Off Blacks-Out Front Facing LEDs
BLU/BLK Rear Cut-Off Blacks-Out Rear Facing LEDs
GRN Cruise Lights End LEDs only Overridden by all other functions except for Dim
BLU Lightbar DIM Sets LEDs to DIM mode
Note:
-When the Arrowstik Left and Arrowstik Right wires are both connected to +power, the Center-Out Arrowstik function is activated.
-The Front Cut and Rear Cut functions must be used with the greatest care to ensure that the use of these functions do not diminish
the effectiveness of the Emergency Warning signal.
-When the Pattern Select wire is connected to +power alone, test mode is enabled to exercise all outputs in sequence.
-The Dim Function lowers the brightness of the LEDs in both the ArrowStik mode and Emergency Warning Flash modes.
-The WHT Drivers Side Cut wire may be changed to Arrowstik Flash. Please see the Arrowstik flash pattern selection section below
for details.
-Lightbars equipped with a DOT strip assembly are wired in conjunction with the STT tail light function. All STT functions are
powered independent of the central driver PCA.

Page 9 of 18
Emergency Mode Flash Pattern Selection
There are seven customizable emergency flash pattern modes available based on the wire combinations shown in TABLE 3. When using
individual switches, make sure to configure all possible switch combinations. The default setting is unsynchronized which allows each light
head module group to be configured separately and the lightbar to flash in an unsynchronized pattern. Steps to synchronize the light head
module groups together are detailed in later sections.
Level Mode Combinations
Function Wire Color Flash Pattern Modes
GRN/BLK L1
WHT/BLK L2
GRN/BLK & WHT/BLK L1 + L2
RED/BLK L3
GRN/BLK & RED/BLK L1 + L3
WHT/BLK & RED/BLK L2 + L3
GRN/BLK, WHT/BLK & RED/BLK L1 + L2 + L3
TABLE 3
The module groups in each mode come with the default flash patterns shown in TABLE 4.
TABLE 4
Level Mode Default Flash Patterns by Group - Unsynchronized
Light Head
Module Group L1 L2 L3
Front Outboard Off Quad 75 FPM Cycle Flash
Front Inboard Off Quad 75 FPM Cycle Flash
Front Center Off Quad 75 FPM Cycle Flash
Front Corner Off Quad 75 FPM Cycle Flash
Rear Outboard Quad 75 FPM Off Cycle Flash
Rear Inboard Quad 75 FPM Off Cycle Flash
Rear Center Quad 75 FPM Off Cycle Flash
Rear Corner Quad 75 FPM Off Cycle Flash
Rear End Quad 75 FPM Off Cycle Flash
L1 + L2 L1 + L3 L2 + L3 L1 + L2 + L3
Front Outboard Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Front Inboard Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Front Center Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Front Corner Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Rear Outboard Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Rear Inboard Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Rear Center Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Rear Corner Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
Rear End Quad 75 FPM Cycle Flash Cycle Flash Cycle Flash
To change a light head group flash pattern selection:
1. Power-up the Lightbar and apply +power to the level mode wire you wish to change (see TABLE 3). The light bar will flash the default
pattern shown in TABLE 4.
2. Twist together the BLK/RED Pattern select wire in the 16 conductor cable and the wire of the light head group you want to change shown
in TABLE 5.
3. Momentarily touch the BLK/RED and group wire from step 2 to power to cycle through the patterns in TABLE 6. The pattern
for the set of light heads configured will only be set in the level mode selected.

Page 10 of 18
Light Head Group Wires - Unsynchronized
Function Wire Color Light Head Group
GRN/WHT Front Outboard
BLU/BLK Front Inboard
ORG/BLK Front Center
GRN Front Corner
BLK/WHT Rear Outboard
RED/WHT Rear Inboard
BLU/WHT Rear Center
BLU Rear Corner
BLK Rear End
TABLE 5
Light Head Group Flash Patterns -
Unsynchronized
Order Group Flash Rate
1 Quad 75 FPM
2 Single 150 FPM
3 Double 75 FPM
4 Triple Pop 75 FPM
5 Variable Rate - Single
6 NFPA Quad 77 FPM
7 Cycle Flash
8Off
TABLE 6
To restore the Factory Default Flash Rate to a module group, apply +power to the level you wish to change (see Table 2), then hold the ap-
propriate rate selection wire and the BLK/RED wire to +power for more than four seconds. The four corner light heads will flash once, and
then stay on to indicate that the Factory Default setting has been restored.
For instructions related to the California Title 13 steady burning red warning lamp requirement during level mode operation, please contact
ECCO directly.
Emergency Mode Flash Pattern Selection – Synchronized
The seven customizable emergency flash pattern modes in Table 3 each have the option to be synchronized. This condenses the module
groups from TABLE 5 to front and rear.
To synchronize a set of module groups:
1. Power-up the Lightbar and apply +power to the appropriate level mode wires (see Table 3) and the BLK/RED Pattern select wire in
the 16 conductor cable.
2. Momentarily touch the RED wire to +power set the level mode to synchronized. The four corner modules will turn on each time the
lightbar is toggled between unsynchronized and synchronized.
Once synchronized, the module group in each mode flash sequence defaults to OFF. To change a light head group flash sequence
selection:
1. Power-up the Lightbar and apply +power to the appropriate level mode wires (see Table 3) and the BLK/RED Pattern select wire in
the 16 conductor cable.
2. Momentarily touch the appropriate light head group wire, shown in Table 7, to +power to cycle through the sequences shown in shown
in Table 7.
Light Head Group Wires - Synchronized
Function Wire
Color
Light Head Sequence
Group
GRN/WHT Front
BLU/BLK Rear
TABLE 7

Page 11 of 18
Light Head Group
Flash Sequence -
Synchronized
Order Sequence
1Off
2 Left/Right
3 Even/Odd
TABLE 8
After the module groups have a sequence selected, a flash pattern rate can be chosen. The default rates are as follows in TABLE 9.
Level Mode Default Patterns by Group - Synchronized
Light Head Group
Flash Rate L1 L2 L3
Front Quad 75 FPM Quad 75 FPM Cycle
Rear Quad 75 FPM Quad 75 FPM Cycle
L1 + L2 L1 + L3 L2 + L3 L1 + L2 + L3
Front Quad 75 FPM Cycle Cycle Cycle
Rear Quad 75 FPM Cycle Cycle Cycle
TABLE 9
To change a light head group flash pattern rate selection:
1. Power-up the Lightbar and apply +power to the appropriate level mode wires (see Table 3) and the BLK/RED Pattern select wire in the
16 conductor cable.
2. Momentarily touch the appropriate light head group wire, shown in Table 10, to +power to cycle through the flash pattern rates shown in
shown in Table 11.
Light Head Group Flash Rate Wires -
Synchronized
Function Wire Color Light Head Group
BLK Front
BLU/WHT Rear
TABLE 10
Light Head Group Flash
Rates - Synchronized
Order Flash Pattern
1 Double 75 FPM
2 Triple 75 FPM
3 Quad 75 FPM
4 Quint 75 FPM
5 Triple Pop 75 FPM
6 Quad Pop 75 FPM
7 Single 150 FPM
8 Double 150 FPM
9 Triple 150 FPM
10 Quad 150 FPM
11 Quint 150 FPM
12 Triple Pop 150 FPM
13 Quad Pop 150 FPM
14 Single 375 FPM
15 NFPA Qud 77 FPM
16 Cycle Flash
TABLE 11
To restore the Factory Default Emergency Warning Flash Rate to module group in a level mode, hold the appropriate rate selection wire
and the BLK/RED wire to +power for more than four seconds. The four corner light heads will flash once, and then stay on to indicate that
the Factory Default Emergency Warning Flash Rate has been restored.

Page 12 of 18
Arrowstik Flash Pattern Selection
The CC Series Lightbar is designed to offer user selectable traffic directing and traffic warning flash patterns. Each of the ArrowStik® func-
tions (LEFT, CENTER-OUT, RIGHT and FLASH) can be programmed individually for unique patterns and flash rates. This allows the greatest
flexibility when controlling the various Lightbar configurations available. A Lightbar may be wired as a 5, 6, 7 or 8 light head configuration. The
Lightbar will come from the factory with the Building Fast flash pattern as the default for LEFT, CENTER-OUT and RIGHT. The default pattern
for FLASH is Drivers Side Cut – Front, corner & alley.
When selecting a flash pattern for one of the four Arrowstik functions, apply power to the lightbar and the desired function wire (listed in Table
2). Briefly touch the Pattern Select wire (RED/BLK) to +power to cycle through the flash patterns shown in the table below. Ensure power
isn’t applied to any other function wire during flash pattern selection.
Flash patterns marked with an asterisk (*) can be selected in Fast, Medium or Slow flash rate.
Arrowsik Left, Center-Out &
Right Flash Patterns
Order Flash Pattern
1 Building*
2 Building, 3-Flash*
3 Traveling Ball, 3-Flash*
4 Build/Collapse*
TABLE 12
Arrowstik Flash Patterns
Order Flash Pattern
1 Drivers Side Cut - Front corner & alley
2 Drivers Side Cut - Rear corner & alley
3 Drivers Side Cut - Front outboard, corner alley
4 Standard Flash*
5 Quad Flash Standard
6 Simultaneous Flash*
7 Quad Flash Simultaneous
8 Even/Odd Flash*
9 Quad Flash Even/Odd
10 Left/Right Flash*
11 Quad Flash Left/Right
12 Travelling Ball Flash*
TABLE 13
To restore the Factory Default ArrowStik Flash Patterns, hold the BLK/RED and desired function wire to +power for ~four seconds.
TR Series Wiring
A TR series lightbar has a single cable with 11 colored wires. A dedicated ground wire, a dedicated power wire, five colored control wires
which run through the main driver board and 4 additional wires that supply (+) power directly to any additional modules such as Work
Lights, Alley Lights, Take Downs or Stop/Turn/Tail (STT) modules.
The 16 AWG black ground wire should be connected directly to the battery. The 16 AWG red power wire requires a constant 10 to 16V
(+)power source with a customer supplied in line 15A fuse.
The five control cable wires (listed in TABLE 14 below) routed through the driver board carry only low current (30 mA average) input signals
to control the lightbar functions and must be routed to the output of a control switch (or directly to multiple switches).
Before attempting to connect the lightbar wiring harness, refer to the configuration specific wiring key included with the lightbar for the con-
figuration specific functions of each wire. Use appropriate high-temperature wiring if it passes through the engine compartment. Use cable
ties and grommets to secure and protect all cables and wires.
Standard TR Function Wire Denitions
Function Wire Color Function Description
BLU L1 Level 1 Emergency Mode
ORG L2 Level 2 Emergency Mode
YEL L3 Level 3 Emergency Mode
GRN Pattern Select
WHT Lightbar Dim Set LEDs to DIM mode
TABLE 14
NOTICE: When the GRN Pattern Select wire is connected to +power alone, test mode is enabled to exercise all outputs in sequence.

Page 13 of 18
Emergency Mode Flash Pattern Selection
There are seven customizable emergency flash pattern modes available based on the wire combinations shown in TABLE 15. When using
individual switches, make sure to configure all possible switch combinations.
Level Mode Combinations
Flash Pattern Modes Function Wire Color(s) Default Flash Pattern Pattern
L1 BLU Fast In-Out Quad - Rear 13
L2 ORG Fast In-Out Quad - Front 25
L3 YEL Cycle - Front/Rear 11
L1 + L2 BLU & ORG Fast In-Out Quad - Front/Rear 1
L1 + L3 BLU & YEL Cycle - Front/Rear 11
L2 + L3 ORG & YEL Cycle - Front/Rear 11
L1 + L2 + L3 BLU, ORG & YEL Cycle - Front/Rear 11
TABLE 15
To change a flash pattern on a single emergency level mode:
1. Power-up the Lightbar and apply +power to the level mode wire(s) you wish to change (see TABLE 15). The light bar will flash the default
pattern.
2. Momentarily touch the GRN pattern select wire to (+) power to cycle through to the next flash pattern shown on TABLE 16.
3. To reset the flash pattern to the factory default, hold the GRN pattern select wire to (+) power for ~5 seconds.

Page 14 of 18
Level Mode Flash Patterns
Order Flash Pattern - Module Group
1 Fast In-Out Quad - Front/Rear
2 Picket Fence Single - Front/Rear
3 In-Out Single - Front/Rear
4 Picket Fence Quad - Front/Rear
5 Picket Fence Six - Front/Rear
6 Slow In-Out Quad - Front/Rear
7 Slow In-Out Six - Front/Rear
8 Fast In-Out Six - Front/Rear
9 Variable Rate Picket Fence Single - Front/Rear
10 In-Out Quad - Front/Rear
11 Cycle - Front/Rear
12 Simulataneous Quad - Front/Rear
13 Fast In-Out Quad - Rear
14 Picket Fence Single - Rear
15 In-Out Single - Rear
16 Picket Fence Quad - Rear
17 PIcet Fence Six - Rear
18 Slow In-Out Quad - Rear
19 Slow In-Out Six - Rear
20 Fast In-Out Six - Rear
21 Variable Rate Picket Fence Single - Rear
22 In-Out Quad - Rear
23 Cycle - Rear
24 Simultaneous Quad - Rear
25 Fast In-Out Quad - Front
26 Picket Fence Single - Front
27 In-Out Single - Front
28 Picket Fence Quad - Front
29 Picket Fence Six - Front
30 Slow In-Out Quad - Front
31 Slow In-Out Six - Front
32 Fast In-Out Six - Front
33 Variable Rate Picket Fence Single - Front
34 In-Out Quad - Front
35 Cycle - Front
36 Simultaneous Quad - Front
For instructions related to the California Title 13 steady burning red warning lamp requirement during level mode operation, please contact
ECCO directly.
TABLE 16

Page 15 of 18
FIGURE 8
CORNER MODULE
LED TD/ALLEY
MODULE
DIRECTIONAL
MODULE
FIGURE 9
Twist to
lift lens
Pry up
to remove
lens clip
Options and Maintenance:
Lens Cleaning
Occasional cleaning of the lenses will ensure optimum light output. Take care when cleaning lenses - although tough, polycarbonate
scratches easily. Clean the lens and base with soap and water or a lens polish using a soft cloth. Do not use solvents as they may damage
the polycarbonate.
Lens Removal and Installation
1. Uninstall the lens clips (4 per lens), as shown in FIGURE 8, using a flat blade screwdriver.
2. Insert the screwdriver into the gap along the lens edge, and twist the screwdriver to lift the lens.
3. When finished, reinstall making sure the lens gasket is not damaged or folded. Replace the clips by hooking into the bottom lens slot and
pressing the upper portion into the clip pocket.
LED Module Removal and/or Replacement
1. Remove screw(s) securing the light head assembly to the lower lens as shown in FIGURE 9.
2. Lift the light head assembly and disconnect the wiring at the connectors.
3. During re-assembly, repeat the prior steps in reverse order. Torque screw(s) to 10 in-lbs or 1.13 Nm.

Page 16 of 18
Description Part No.
Lenses
Lower end EZ2701C
Lower mid/center short (8”/203mm) EZ2708C
Lower mid/center medium (11”’/280mm) EZ2711C
Upper mid/center medium, (11”/280mm) EZ2127U11X*
Upper mid/center long, amber (11”/280mm) EZ2127U16X*
22”/0.7m (upper) EZ2127U22X*
Upper mid/center short (8”/203mm) EZ2127U8X*
Upper end EZ2127UX*
22”/0.7m, (lower) clear EZ27L22C
Mounting
Universal headache rack A2127HRMK
Ford Super Duty Truck 2010-2016 A212701RMK
Ford E Series Van 1996-2014, GM Van (Express/Savanna) 2003-2014, Universal Gutter
Mount
A212702RMK
Ford Escape/Explorer 2012-2016, Toyota Tacoma 2005-2015 A212703RMK
GM Truck 1/2T 2007-2013 A212704RMK
Ford Super Duty Truck 1999-2009 A212705RMK
Dodge Truck 1/2T 2009-2016 A212706RMK
Dodge Truck 3/4-1T 2003-2009,/GM Truck 1/2T 1998-2006, 1T Tahoe/Yukon 2007-2014 A212707RMK
GM Truck 1/2T 2014-2016, 1T Tahoe/Yukon 2015-2016 A212708RMK
Ford Truck 1/2T 2015-2016 A212709RMK
10 & 14 Series Ford Truck 1/2T 2010-2014 A212710RMK
Standard feet, for use with 21 & 27 Series lightbars A2127FT
Magnet Mount Kit 22” EZ2122MG
Accessories
Controller: integrated Safety Director, for use with centrally controlled modules EZ2127ASCC
Controller: integrated Safety Director, for use with independent flashing modules EZ2127ASIF
Driver Board: for use with centrally controlled modules, software version 1000 EZ2127CC600
Driver Board: for use with centrally controlled modules, software version 1050 EZ2127CC800
Driver Board: for use with centrally controlled modules, software version 1051 EZ2127CC950
Lens Retaining Clip EZ2127LC
Photo Cell: day/night auto dimming EZ2127PC
Switchbox: 3 level progressive slide and 6 rocker switches, 12 VDC EZ2127SB
Solar Panel EZ2127SP
Modules
LED DOT Strip Module: external mount EZ2127DOT
LED Stop Tail Indicator Module (pair) EZ27STT
Front/Rear, REF3 (centrally controlled) EZ27CC3X*
Front/Rear, REF8 (centrally controlled) EZ27CC8X*
Corner, REF12 (centrally controlled) EZ2CC12X*
Front/Rear, REF22 (centrally controlled) EZ27CC22XX*
Front/Rear, REF3 (independent flashing) EZ27IF3X*
Front/Rear, REF3 (steady burn) EZ27IF3XX*
Front/Rear, REF8 (independent flashing) EZ27IF8X*
Front/Rear, REF8 (steady burn) EZ27IF8XX*
Front/Rear, REF12 (independent flashing) EZ27IF12X*
LED Worklamp/Alley Module, TR3 EZ2127WL
LED Alley Module EZ2700AL
Replacement Parts/Accessories:
*Where X indicates color options: A=Amber, B=Blue, C=Clear (White), G=Green, R=Red

Troubleshooting:
All lightbars are thoroughly tested prior to shipment. However, should you encounter a problem during installation or during the life of the product, follow the
guide below for troubleshooting and repair information. If the problem cannot be rectified using the solutions given below, additional information may be
obtained from the manufacturer – contact details are at the end of this document.
PROBLEM POSSIBLE CAUSE SOLUTION
Does not function Poor power or ground connection In CC Lightbars, a green light on the central
control board should flash when power is
first applied to the bar and during flash pat-
tern selection.
Blown fuse Check wiring, replace fuse
Incorrect flash patterns Wrong flash configuration Cycle through flash patterns according to
the supplied wire key and wiring instruc-
tions section of this installation guide.
NOTE: Operating the vehicle without the outer lens installed on the product may result in damage that will NOT be
covered under the warranty.
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Learn more about emergency and warning lighting on our website.