HT-water preheating unit (APU)

HT-water preheating unit
  • Auramarine preheating units (APUs) heat the water used in an engine’s high temperature (HT)-water system
  • Heat is generated via steam or burning thermal oil
  • APUs are equipped with an associated HT-water circulation pump, which provides a continuous flow of heated water
  • APUs are typically used to keep the engine block warm for easy start-ups and to avoid heat tension in the engine
  • The water temperature is kept constant by a built-in self-actuating thermostatic controller located in the unit
  • APUs can be remotely-controlled or operated from a control cabinet mounted on the unit
  • Additional pressure gauges and a thermometer are available as optional extras

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Brochure: Auramarine preheating unit APU

Updated 20.12.2017

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