Importance

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Abstract

HVAC units and systems, air conditioning units, and heat pumps that have micro-channel heat exchangers wherein fins are slanted, multi-tubes are oriented non-horizontally (e.g., vertically), or both, for example. Fins may be slanted downward in the direction of air flow to facilitate drainage of condensation, or may be slanted either downward or upward as appropriate to reduce air-flow restriction. Other embodiments include the heat exchangers themselves and buildings having such heat exchangers, units, or systems, as well as methods concerning such devices, such as methods of manufacture. In some embodiments, heat exchangers are used as evaporators in air conditioning units, as condensers in heat pumps, or both, as examples.

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First Claim