digital air-on-demand system
DIGITAL air on demand
Digital Red Lion Fan Speed Controller
Our Digital Air-On-Demand is ONLY available in AC.
The Red Lion 4.3" CR1000 Human-Machine Interface (HMI) is utilised by MAFI to control the operation of all VSD's from a single panel.
The CR1000 HMI module includes a full-colour 4.3" touch-screen panel with 2 serial ports, 1 Ethernet port and an SD port. The Red Lion system provides real-time feedback on the performance of the VSDs, allowing the user to adjust the fan's speed to optimise engine room ventilation.
Additionally, the Red Lion system has a sleek, modern look that is not out of place on the most luxurious of control panels.
Analogue Vs Digital Systems
| Feature | Analogue System | Red Lion system |
|---|---|---|
| Switch between man/auto/off | Yes | Yes |
| Change manual speed | Yes | Yes |
| Change direction of flow | Yes | Yes |
| Displays live data | No | Yes |
| Can be programmed into auto ship management system | No | Yes |
| Shows system status | No | Yes |
| Allows performance diagnostics to be viewed | No | Yes |
| Has real time data logging | No | Yes |
| Illuminates in low light situations | No | Yes |
| Available in DC | Yes | No |
Our Air-On-Demand Explainer Video
Features Of Our Air-On-Demand Digital Red Lion

- Easily change between automatic mode, manual extract mode, manual supply mode and OFF (note - we STRONGLY recommend supply air as it is far more efficient)
- Ability to quickly adjust speed of fans manually in the engine room
- Control screens display live data regarding engine room temperature, frequency output and power usage
- Status of the system is visually displayed (Alarm/Warning/Running) allowing for easy identification when errors occur
- Easily change between automatic mode, manual extract mode, manual supply mode and OFF (note - we STRONGLY recommend supply air as it is far more efficient)
- Ability to quickly adjust speed of fans manually in the engine room
- Readouts screen shows live analogue current draw, motor voltage, heat sink temperature and DC link voltage
- Ability to perform diagnostics on system for optimisation
- Option to be programmed into a ship management system (via Modbus Addressing)
- Real-time data logging
- Ability to control multiple VSD’s on a single control panel
AC Red Lion Controller Screens
Spec Data & Downloads
Installation Instructions
Digital Air-On-Demand Installation Instructions will be available soon. Our User Manual is now available
AC Red Lion Prices
Our Digital (Red Lion) Air-On-Demand unit is available AC only.
The starting price for these units is $2880 + gst.
(Typically they sit at around $3800 for most applications)
GST is an Australian tax that is charged at 10%. It isn't usually included on export invoices.
Contact Us
If you have any questions about which Air-On Demand Fan Speed Controller might be suitable for your purpose, please contact us and we would be happy to help.




















