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Summary of Contents for Redarc Tow-Pro EBRH-ACCNA
- Page 1 Tow‑Pro Liberty ® Electric Trailer Brake Controller − 12V MODEL: EBRH‑ACCNA ƒ...
- Page 2 Tow‑Pro Liberty ® Electric Trailer Brake Controller (EBRH‑ACCNA) The Tow‑Pro Liberty is a proportional electric trailer ® brake controller designed to suit most common trailer braking applications while requiring minimal dash space and being simple to install and operate. The Tow‑Pro Liberty features Active Calibration ®...
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Page 3: Table Of Contents
CONTENTS WARNINGS AND SAFETY INSTRUCTIONS ��������������������������������������������������������������������������� 1 SPECIFICATIONS ����������������������������������������������������������������������������������������������������������������� 1.1 Kit Contents ����������������������������������������������������������������������������������������������������������������� 1.2 Dimensions and Connection �������������������������������������������������������������������������������������� 2 INSTALLATION ��������������������������������������������������������������������������������������������������������������������� 2.1 Mounting the main unit ����������������������������������������������������������������������������������������������� 2.2 Wiring the brake controller ������������������������������������������������������������������������������������������ 2.3 Mounting the Remote Head Control Knob �������������������������������������������������������������... - Page 4 WARNINGS AND SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS — This manual contains important safety instructions for the Tow‑Pro Liberty Electric Trailer 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.
- Page 5 During the calibration step of the Tow‑Pro Liberty, braking of the trailer may be inconsistent. REDARC ® recommends calibrating the Tow‑Pro Liberty without a trailer attached. A normal drive of a few miles ® will do for this purpose. If calibrating with a trailer attached, then the recommended dial setting for the Tow‑Pro...
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Page 6: Specifications
1 SPECIFICATIONS Part Number EBRH‑ACCNA Operating Voltage 9 V to 16 V Nominal Input System Voltage 12+ V OFF: 0 V Brake Input Signal Voltage ON: +12 V nominal Brake Coil Voltage 12 V Max. Trailer Axles 2 Axles Nominal Current Draw 12 A Max. -
Page 7: Dimensions And Connection
1.2 Dimensions and Connection 1.2" 0.4" (10 mm) 0.4" (10.0 mm) (30 mm) Remote Head Connection 3.9" (100 mm) Brake Input 4.1" (104 mm) Output Power (BLUE) (BLACK) Brake Ground/ Lights Earth (RED) (WHITE) 0.45" (11.5 mm) 1.8" 1.7" 0.9" 0.7"... -
Page 8: Installation
2 INSTALLATION 2.1 Mounting the main unit The Tow‑Pro Liberty should be mounted inside the vehicle cabin using either ⁄ " (M4) diameter ® 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 via the included remote head cable. -
Page 9: Wiring The Brake Controller
Liberty is sold without a wiring harness. ® REDARC manufacturers a universal wiring harness as well as a number of vehicle‑specific wiring harnesses for quick and easy installation. For older vehicles not covered by our range of wiring harnesses where a custom installation is required, the TPH‑025 ‘Universal Harness’... - Page 10 2.2.2 WIRING — ELECTRIC BRAKES The Tow‑Pro Liberty is designed to operate electric brakes in 12 V electrical systems only. For wire ® selection refer to the wiring gauge guide "Wiring Gauge Guide" on page NOTICE The Input Power (Black) wire must be connected directly to the positive terminal of the start battery via a Fuse (30 A) or Circuit Breaker (30 A) and not through an Ignition source.
- Page 11 Many modern vehicles use a CAN Bus system for signalling when to apply the vehicles brakes as required by safety systems including adaptive cruise control, stability control, Autonomous Emergency Braking (AEB) and hill descent control. For these vehicles, REDARC recommend the following wiring configuration.
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Page 12: Mounting The Remote Head Control Knob
Mounting Guide below. For easy access in an emergency situation, REDARC recommend installing the remote head within reach of the driver such as the regions shaded in the diagram below. -
Page 13: Remote Head Mounting Guide
2.4 Remote Head Mounting Guide Test the push‑button after installation. If the LED does not illuminate when you push the button, REDARC recommend installing the remote head without the Bezel. 0.08 - 0.12" (2.0 - 3.0mm) Ø1/8" (Ø3.5mm) drill pilot hole rst 0.3"... -
Page 14: Installation Accessories
2.5 Installation Accessories REDARC offer a range of vehicle specific switch inserts and vehicle specific wiring kits designed to make the installation of the Tow‑Pro Liberty easier. ® The range includes most popular SUV & LCV’s and is frequently being updated and added to. -
Page 15: Operation
3 OPERATION 3.1 Adjusting the Braking Force The braking level can be adjusted to suit varying trailer loads, Blue LED Colour braking requirements or user comfort by adjusting the control knob on the remote head. Lighter Heavier Trailer Trailer The lower end of the scale (below level 5) should be used as a starting point and adjusted accordingly once braking requirements are established. -
Page 16: Manual Override
3.3 Manual Override Pressing the control knob whilst driving will apply the manual override brake. The manual override brake will apply the trailer brakes only; if wired correctly it will also apply the trailer brake lights and will turn the LED indicator a shade of RED. -
Page 17: Park Brake Feature
3.5 Park Brake Feature If the Tow‑Pro Liberty detects that the vehicle brakes are applied for longer than 3 seconds ® whilst the vehicle is stationary, it will apply the trailer brakes in an intelligent manner to reduce the required braking effort whilst decreasing the risk of rolling forward or backward whilst stopped. If the controller determines the trailer brakes are not required to keep the vehicle stationary, the output will be decreased to Zero. - Page 18 Check and clean trailer plug connection. Please contact 1 Second The LED is YELLOW and There is a fault with the unit REDARC or visit your local flashes PURPLE twice and/or the installation auto‑electrician for further assistance Check all wiring from the unit to...
- Page 19 LED Sequence Symptom/Description Possible Cause Suggested Action Check that RED wire is The LED is flashing 1 Second Low continuous voltage on connected to a point that is 0 V GREEN at any time or brake light (RED) wire when the brakes are off and only when not braking 12 V with the brakes applied 1 Second...
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Page 20: Wiring Gauge Guide
4 WIRING GAUGE GUIDE Whilst Tow‑Pro wiring harnesses are available for most vehicles on the market, some older vehicles will require manual wiring. For this purpose REDARC offers the TPH‑025 Universal Wiring harness for custom installation. Below is a diagram outlining the required wire cross sectional areas for the Tow‑Pro Liberty custom ®... -
Page 21: Periodic Maintenance And Checks
It is important to have a qualified technician check the function of your trailer system on a periodic basis to ensure that everything is operating correctly. REDARC recommend that you visit a qualified technician before the beginning of each holiday season to ensure that any towing aids or systems are working correctly. -
Page 22: Frequently Asked Questions
6 FREQUENTLY ASKED QUESTIONS The LED is flashing Blue/Green, what does this mean? A Blue/Green flash sequence indicates that the unit is in the process of calibration, as the unit becomes more confident in it’s calibration the Blue will appear for longer. Continue driving and eventually this will turn to a solid Blue. - Page 23 Will my trailer brakes work while I am reversing? The Tow‑Pro Liberty is designed to apply the trailer brakes whether the vehicle is travelling forward ® or in reverse. The effectiveness of the brake application in reverse will depend on the mechanical design of your particular electric brake system.
- Page 24 FCC Declaration This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
- Page 25 NOTES Frequently Asked Questions | 25...
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Page 26: Warranty
7 WARRANTY LIMITED WARRANTY For full warranty terms and conditions, visit the Warranty page of the REDARC website. Refer to the web address and contact details applicable to your region. Australia, New Zealand & Europe North America www.redarc.com.au/warranty www.redarcelectronics.com/warranty REDARC Electronics Pty Ltd... - Page 27 Australian Registered Innovation Patent: 2017100513 U.S.A US Patent No.: US 9,446,747 Design and specifications are subject to change without notice | Copyright © REDARC Electronics Pty Ltd. All rights reserved. REDARC®, THE POWER OF REDARC®,and Tow‑Pro® are trademarks of REDARC Electronics Pty Ltd.
- Page 28 CONTACT Australia 1300 REDARC New Zealand +64 9 222 1024 UK & Europe +44 (0)20 3930 8109 redarc.com.au +1 (704) 247 5150 Canada +1 (604) 260 5512 Mexico +52 (558) 526‑2898 redarcelectronics.com INST56-3 EN...
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