Thermal Storage APU

Webasto Product North America’s BlueCool Hybrid Thermal Storage APU has a shore power option that allows the use of electricity from a land-based source to produce cool air indefinitely and also deliver AC power for standard household appliances without having to use an inverter or the vehicle’s electrical system. This helps significantly reduce or eliminate engine idling without compromising driver comfort or convenience, says the company. The BlueCool Hybrid uses a standard 120 v AC power source. A high-efficiency pump circulates coolant through the storage core and an air handler (heat exchanger) in the cab. Four quiet, efficient fans in the air handler draw in warm bunk air and pass it across the exchanger. The air gives up its heat to the chilled mixture circulating through the exchanger and returns to the bunk through adjustable openings on the air handler. The APU runs independently of the OE air-conditioning system and can charge and discharge simultaneously while connected to shore power.

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