APU IDLE REDUCTION HEATING SYSTEM
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The HOTSTART Auxiliary Power Unit (APU) heating system is a self-contained water/coolant and oil preheater for locomotive prime movers. Utilizing an efficient Tier 4 Final engine, the APU consumes only a fraction of the fuel an idling locomotive uses while providing heat via four heat exchange points and a built-in tank heater – a total of 19 kW of total heating power supplied to the locomotive, lube oil and optional operator cab heater. The APU also supplies 80 amps of battery charging via a heavy-duty alternator. Designed from the ground up to work seamlessly with a locomotive’s day-to-day operations, the APU includes an easy-to-use operator interface, automatic operation, and integration capability with AESS systems.
By providing heat to the engine and lubrication oil, the HOTSTART APU allows locomotives to shut down in any location at any time while retaining the ability to restart immediately – even in the coldest conditions. Eliminating unnecessary idling and maintaining optimal start up temperatures for both critical engine components and oil reduces fuel consumption, oil consumption, emissions, noise pollution, engine wear, and wet-stacking.
