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Two variations of the Hybrid system have been developed for different climates;
the Hybrid Air Conditioner and the Dry Climate Hybrid Air Conditioner. Both use
the cool, evaporator side of the compressor to cool desiccant and thence the
supply air. The hot, condenser side of the compressor is used to regenerate the
desiccant. Both are self-contained in one package with a smaller footprint,
lower weight and overall size than comparable dehumidifiers.
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| The Standard Hybrid Air Conditioner |
Outdoor air passes through an enthalpy exchanger (a proprietary liquid desiccant
technology) where it is partially cooled and dried using the return air from
the building. It then continues through multiple stages of cold desiccant where
it is finally cooled and dried.
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The return air has already picked up some heat from the incoming air. It then
contacts hot desiccant that has been heated through heat exchange with the
condenser refrigerant. It dries the desiccant and then exhausts to the
atmosphere. There are also two water stages designed to allow additional heat
transfer and recovery from the compressors.
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| The Dry Climate Hybrid Air Conditioner |
This is similar to the Standard unit except that the enthalpy
exchanger is replaced with a proprietary indirect evaporative cooler. Because
the air is drier, there is no need to return the room air as a heat sink, and
half of the air entering the exchanger is used to pre-cool the remainder of the
outside air. This machine is, however, more versatile than any other
evaporative cooler and can still handle the more humid summer months when
evaporative coolers are ineffective.
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