Redarc Tow-Pro Elite, EBRH-ACCV2 User Manual
AL-KO ESC &
DEXTER DSC
APPROVED*
PROPORTIONAL
with ACTIVE CALIBRATION
Elite
Electric Trailer Brake Controller
TOW-PRO™ ELITE (EBRH-ACCV2) TRAILER BRAKE CONTROLLER
The Tow-Pro™ Elite is an electric trailer brake controller designed to suit most common
trailer braking applications whilst requiring minimal dash space and being simple to install
and operate.
The Tow-Pro™ Elite offers selectable Proportional or User Controlled trailer braking modes
allowing the user to choose the braking style depending on the road or terrain conditions,
vehicle type, or driver preference.
The Tow-Pro™ Elite features Active Calibration which constantly monitors the direction of
travel and will even calibrate with no trailer attached whilst maintaining the ability to mount
in any orientation.
The unit is able to operate both electric and electric/hydraulic trailer brakes and will operate
from either 12V or 24V vehicle systems without the need for manual selection or extra
components/ wiring. The unit is ADR compliant when installed as directed and is approved
for use with AL-KO ESC and Dexter DSC sway control systems.
WARNINGS & SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS - This manual contains IMPORTANT SAFETY INSTRUCTIONS for
the
Tow-Pro™ Elite
Brake Controller.
DO NOT OPERATE THE CONTROLLER UNLESS YOU HAVE READ AND UNDERSTOOD THIS
MANUAL AND THE CONTROLLER IS INSTALLED AS PER THESE INSTALLATION INSTRUCTIONS.
ENSURE THAT YOUR TRAILER BRAKES ARE INSTALLED AND ARE OPERATING CORRECTLY:
IMPROPERLY INSTALLED AND/OR FAULTY TRAILER BRAKES CAN CAUSE ERRATIC VEHICLE OR
TRAILER BEHAVIOUR WITH THE POTENTIAL TO CAUSE A ROAD ACCIDENT. FOR THIS REASON,
IT IS OF UTMOST IMPORTANCE THAT YOUR TRAILER BRAKING SYSTEM BE INSTALLED/
MAINTAINED BY A QUALIFIED INSTALLER.
ALWAYS CHECK BRAKES AT LOW SPEED EACH TIME A TRAILER IS ATTACHED TO YOUR
VEHICLE.
1. Ensure that the Tow-Pro™ Elite is mounted securely in a fixed location. Failure to
mount securely will result in inaccurate braking force measurements and incorrect
braking of the trailer.
2. Ensure that the Tow-Pro™ Elite is installed inside the vehicle cabin and away from any
environmental conditions that may cause damage, including engine heat, submersion
in water, salt spray and humidity. Exposure to these conditions may cause damage to
the unit’s circuitry and may cause erratic trailer braking.
SAL.FOR.Instruction Manual.EBRH-ACCV2 – Version 4
1
WARNINGS & SAFETY INSTRUCTIONS
3. A Fuse or Circuit Breaker of appropriate rating must be installed to protect the vehicle
system. Please refer to the installation instructions on page 7 for specific instructions
on where to install the Fuse or Circuit Breaker and for appropriate Fuse or Circuit
Breaker rating. The Fuse or Circuit Breaker must be installed as close as possible to
the battery.
4. Ensure the remote head push-button activates correctly when installed into surfaces
with a thickness greater than 3.0mm. Failure to activate correctly would result in not
being able to activate the override function or change modes.
5. Ensure that the cable used to install the Tow-Pro™ Elite is of adequate gauge to
supply the required current to operate the trailer brakes. Incorrect wiring can result in
overheated wires or excessive voltage drop and may cause injury to persons, damage
to the Tow-Pro™ Elite and/or damage to property.
6. The Tow-Pro™ Elite is suitable for all trailers with electric brakes on up to three axles.
Note that for trailers above 4.5t gross, special testing is required under Australian
Design Rules. For these trailers, please consult with an automotive safety engineer
before using the Tow-Pro™ Elite.
1. Ensure that a correct grounding point is used. Vehicles often have ungrounded
metal reinforcements under the dash and these points are not suitable grounds. Bad
grounding of the unit will result in poor or no operation.
2. The Tow-Pro™ Elite does not act as a trailer lights voltage converter. The Tow-Pro™
Elite is designed to operate the trailer brake lights under certain conditions. If the
trailer brake lights require a different voltage to the input from the vehicle, damage to
the trailer brake lights may result.
3. When installing the Tow-Pro™ Elite Remote Control to a thin panel, washers are
recommended to reinforce the structure of the panel.
4. Do NOT exceed Tow Vehicle and Trailer weights and specifications. Failure to abide by
the towing regulations, including maximum loads, may result in a fine, or in case of
an accident, refusal of the insurance claim, and the possibility of further legal action.
If the tow vehicle or trailer’s maximum load is exceeded, police and transport
authorities have the power to order the combination off the road until the issue is
corrected. This may necessitate leaving the trailer on the side of the road while a
vehicle with suitable towing capacity is sourced or the trailer load is reduced. Please
contact your local authorities for further information.
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CONTENTS
Table of Contents Page
1 - Specifications 3
2 - Installation 5
2.1 - Mounting the main unit 5
2.2 - Wiring the brake controller 6
2.2.1 Red Wire (Vehicle Brake light) Connection 6
2.2.2 Wiring Diagrams 7
2.3 - Mounting the Remote Head 8
2.4 - Active Calibration 9
3 - Operation 10
3.1 - Adjusting the Braking Force 10
3.2 - Manual Override 10
3.3 - Operating Modes 11
3.3.1 - Proportional Mode (Blue LED) 11
3.3.2 - User Controller Mode (Green LED) 11
3.3.3 - Changing Modes 12
3.4 - Park Brake Feature 12
3.5 - Electric / Hydraulic Brakes 13
3.6 - 24V Vehicle Systems 13
3.7 - Visual User Guide 14
3.8 - LED Indication 15
3.9 - Troubleshooting 16
4 - Periodic Maintenance / Checks 19
5 - Frequently Asked Questions 20
6 - Notes 21
7 - Two Year Product Warranty 22
SPECIFICATIONS
Part Number EBRH-ACCV2
Operating Voltage 9V - 32V
Nominal Input System Voltage 12V 24V
Brake Input Signal Voltage OFF: 0V
ON: +12V nominal
OFF: 0V
ON: +24V nominal
Brake Coil Voltage 12V 12V
Max. Trailer Axles 3 Axles 3 Axles
Nominal Current Draw 18A 18A
Max. Rated Current 25A 30A
Standby Current <10mA
Operating Temp -20°C to +60°C
Weight 200g
Warranty 2 years
3
1 SPECIFICATIONS
Kit Contents
1. Remote Head Assembly
2. Main Unit
1
3
4
6
3. Remote Head Nut
4. Remote Head Knob
5. Remote Head Bezel
6. RJ45 Remote Head Cable (1m)
7. Main Unit Wires & Connector (0.5m)
Dimensions & Connection
Remote Head
Connection
Brake
Output
(BLUE)
Brake
Lights
(RED)
Input
Power
(BLACK)
Ground/
Earth
(WHITE)
2
5
10.0mm 10.0mm
7
23.7mm
19.0mm
46.5mm
4
(Recommended)
43.5mm
11.5mm
20.0mm
20.0mm
2 INSTALLATION
2.1 Mounting the main unit
The Tow-Pro™ Elite should be mounted inside the vehicle cabin using either M4 screws
or other secure fitting methods at the mounting points provided. It is essential to mount
the unit in a location which allows access to the intended remote head location.
The Tow-Pro™ Elite can be mounted in any orientation as long as the installation is
secure and the main unit cannot move or change orientation once installed. A change of
orientation will affect the system calibration.
Ensure that the Tow-Pro™ Elite is mounted securely in a fixed location. Failure to mount
securely will result in inaccurate braking force measurements and incorrect braking of
the trailer.
Ensure that the Tow-Pro™ Elite is installed inside the vehicle cabin and away from any
environmental conditions that may cause damage, including engine heat, submersion in
water, salt spray and humidity. Exposure to these conditions may cause damage to the
unit’s circuitry and may cause erratic trailer braking.
Any Secure Orientation OK
Do Not Mount to Cables / Wiring Looms
5
2 INSTALLATION
2.2 Wiring the brake controller
A Fuse or Circuit Breaker of appropriate rating must be installed to protect the vehicle
system. Please refer to the installation instructions on page 7 for specific instructions on
where to install the Fuse or Circuit Breaker and for appropriate Fuse or Circuit Breaker
rating. The Fuse or Circuit Breaker must be installed as close as possible to the battery.
Ensure that the cable used to install the Tow-Pro™ Elite is of adequate gauge to supply
the required current to operate the trailer brakes. Incorrect wiring can result in overheated
wires and may cause injury to persons, damage to the Tow-Pro™ Elite and/or damage to
property.
The Tow-Pro™ Elite does not act as a trailer lights voltage converter. The Tow-Pro™ Elite
is designed to operate the trailer brake lights under certain conditions. If the trailer brake
lights require a different voltage to the input from the vehicle, damage to the trailer brake
lights may result.
2.2.1 Red Wire (Vehicle Brake light) Connection
The requirements for a suitable connection of a brake controller trigger wire are quite
specific. This connection point must:
• Provide battery voltage output while the vehicle brakes are applied.
• Have 0 volts output while the vehicle brakes are not applied
• Accept battery voltage input when the brake controller manual over-ride is operated
and illuminate at least the trailer brake lights.
• Accept the battery voltage input as above without causing any damage, spurious
vehicle operation or erroneous fault indication.
A relay should not be installed to drive the red wire as this would prevent the override
feature from working and may introduce dangerous voltage spikes.
For many vehicles, the brake light terminal of the trailer lighting socket provides a suitable
connection, however this is not necessarily suitable for all vehicles. Unfortunately REDARC
cannot recommend where to make this connection on a specific vehicle’s OEM wiring. For
further information contact the vehicle manufacturer.
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2 INSTALLATION
2.2.2 Wiring Diagrams
12V
INPUT
25A Fuse or
30A Circuit Breaker
(CBK30-EB)
12V Vehicle
Start Battery
-
Ground
The Input Power (Black) wire should be
connected directly to the positive terminal of
the start battery via a Fuse or Circuit Breaker
and not through an Ignition source.
24V
INPUT
25A Fuse or
30A Circuit Breaker
(CBK30-EB)
-
24V Vehicle
Start Battery
Ground
The Input Power (Black) wire should be
connected directly to the positive terminal of
the start battery via a Fuse or Circuit Breaker
and not through an Ignition source.
3.0mm²
3.0mm²
Black
Black
Blue
Blue
Red
Red
3.0mm²
1.25mm²
1.25mm²
White
3.0mm²
1.25mm²
1.25mm²
White
To 12V Trailer
Brakes
To 12V Vehicle
Brake Light trigger
(refer to section 2.2.1)
Dash mount
controls for
Tow-pro.
To 12V Trailer
Brakes
To 24V Vehicle
Brake Light trigger
(refer to section 2.2.1)
Dash mount
controls for
Tow-pro.
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