Pressure and Temperature Controlled
At a certain point a vessel becomes to large for small fans to be effective, and the required intake and exhaust openings required for a natural draft intake start to create design issues. When this happens it's time to step up to 3 phase A/C fans with variable speed drives and a control such as the ECV1 Series to manage it.

By using an intake fan capable of supplying the combustion air and the exhaust air requirement we can overcome the static pressure created by the Mist Eliminators and grills and allow smaller openings for a given engine size than a natural draft configuration. This presents it's own set of problems however. If the intake fan is sized to supply the engines at maximum speed, without flow control it will pressurize the engine room at low RPM. This positive pressure will force fumes out of the engine room and into interior spaces of the vessel. On the same note, if the fan speed is too low the engine room pressure will become negative, making the engines work harder, lowering performance and possibly causing mechanical failures and voided warranties. The exhaust fan speed is always controlled based on temperature. The ECV1 series of controls is designed to monitor engine room conditions and optimize fan speeds based on real time events maintaining ideal conditions in the engine room with the lowest electrical load and sound levels possible.

  • Precise control of pressure and temperature
  • Reduced opening and moisture eliminators size
  • Lightweight
  • Automatic operation both underway and dockside
  • Fans sizing becomes critical
  • Significant cost
  • Complexity
  • Large fans present packaging issues
  • Large electrical loads
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Livos Technologies, LLC
3201 South East Railroad Avenue · Stuart, Florida 34997 · Office: 772.220.1524 · Fax: 772.220.1592 · Email: