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F-IDC tracking PWM water injection system
HFS3
Whats new on Aquamist HFS3-v3.2 pwm system (August 2022)
The latest v3.2 systems are now shipped with the all new DDS4-v2 dash gauge. It com-
prises the following technical enhancements.
1. Captures and holds peak flow rate
2. Shows clear failsafe window settings automatically
3. Super smooth gauge dimming adjustment
4. IDC pre-scaler extended to x6 for E85 integration
5. Accepts inline 5V adaptor for powering external MAP sensor *
6. Decoder for new tank fluid level and temperature with the new multi-level sensor **
* Inline Adaptor is sold separately (available 3rd qtr of 2022)
** Multi-level tank sensor sold separately (designed for 5/10L aquamist tanks, available
3rd qtr of 2022)
Aquamist has been pioneering the IDC (injector duty cycle) tracking water injection system
with constant pressure/PWM inline valve for the last 20 years with great effect. This offers
precise engine load mirroring, resulting in seamless integration with the factory fuel
delivery system. Little or no tuning is required. Very high quality components are part of
the package.
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v 3.2
User manual -v3.2
Page 1
PWM
SN:104004on
Page 2
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Summary of Contents for ERL Aquamist HFS3-v3.2
- Page 1 User manual -v3.2 SN:104004on Page 2 Whats new on Aquamist HFS3-v3.2 pwm system (August 2022) The latest v3.2 systems are now shipped with the all new DDS4-v2 dash gauge. It com- prises the following technical enhancements. 1. Captures and holds peak flow rate 2.
- Page 2 Contents: Page 3 System Check Page Checking the contents of the box Getting started on the installation Installation Installation for long-term reliability Generic wiring diagram for HFS-3 Choosing jet sizes System testing HFS-3 function directory 11-12 Quick Start & manual testing Gauge Flow management and other trimmers Preparation for test run of the system...
- Page 3 Getting started on installation Page 5 Before installation guidelines Before installation guidelines Before installation guidelines Before installation guidelines ♦ The pump and water tank are designed to be and tighten the M16 plastic nut. Stop the assem- fitted in the trunk. Install the water pump below bly from rotating with a 6mm allen key into the the water tank if possible.
- Page 4 Generic wiring diagram for HFS-2/3 Page 7 DASH GAUGE (DDS4v2) FUEL INJECTOR(+) or IGN. SW+ (pre-crank) FAST ACTING VALVE Aquamist AND TURBINE FLOW ml/m SENSOR ASSEMBLY FLOW MAP SENSOR (optional) W. INJECTION FAST FUEL ACTING VALVE WATER LEVEL FLOW 806-239 INJECTOR(-) FAV &...
- Page 5 Page 9 Managing Methanol usage on the system Since the introdution of the Aquatec 5800 se- (70F) and over 4psi @35C (95F). It is most likely the cabin ries pump in 2011, we have received no re- will reach those temperatures port on any related issues on running high on a hot day or parked on an ratio of methanol.
- Page 6 Quick Start Page 11 Mechanical work (checklist): 1. Ignition key on the “OFF” or “0” position: 1. Ignition key on the “OFF” or “0” position: 1. Ignition key on the “OFF” or “0” position: 1. Ignition key on the “OFF” or “0” position: Only after testing with distilled water should - Dash Gauge button is depressed (system on) methanol be used.
- Page 7 Page 13 Flow management and other trimmers Setting the onboard trimmers: - Red (95% DC): - Red (95% DC): - Red (95% DC): - Red (95% DC): When the water/methanol duty cycle is approaching 95%, The red led begins to turn on, indicating that (default=12 o’clock) you have almost reached the maximum flow of your system.
- Page 8 Knowing DDS4-v2 Dash Gauge Page 15 4. Water level LED (normally off) This LED will only activate when tank level is at its lowest. Remains on until tank is refilled (even system is turned off). It also prevents the system from turning on If it stays on if tank level is high, it merely reminds the users the DHB jumper is unlinked 5.
- Page 9 Setting up the fail-safe Page 17 This final stage should be quick, simple and Options after the fail-safe is triggered: effective. Please read it before proceeding. The most common way to minimize engine damage It will save you time in the long run. in the absence of injection is to reduce the boost pressure.
- Page 10 Relay Fail-safe output switching tables Page 19 NORMAL SYSTEM OPERATION DHB LINKED DFS UN-LINKED DHB UNLINKED DFS LINKED FAIL SAFE ACTIVATED (DEFAULT) (DEFAULT) BROWN BROWN BROWN BROWN IGNITION SW. KEY - OUT WHITE WHITE WHITE WHITE BLACK BLACK BLACK BLACK BROWN BROWN BROWN...
- Page 11 Page 21 HFS3-v3.2 extended flow options The HFS flow options: accompanies the twin-FAV module (806- Extensive developments have been made over the last few 401) is essential. years to extend the flow range HFS systems. This drastically changes the charge-pipe set up to a multi-port delivery where We are offering the following options: We are offering the following options:...
- Page 12 24awg Flow sensor signal (analogue 0-5V) 0.5 - 4.5V @1mA Note: ERL reserves the right to make changes to our prod- white 24awg Water/Methanol IDC monitor (analogue) output 0 - 5V @1ma. ucts without notice in order to improve design performance...
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