Controls for air conditioner
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United States of America Patent
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Sep 21, 2004
Grant Date -
N/A
app pub date -
Oct 21, 2002
filing date -
Oct 21, 2002
priority date (Note) -
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Abstract
A control system for a HVAC unit for controlling the humidity and temperature of interior building space at desired levels regardless of the outside temperature and humidity conditions. This system is more efficiently so that it operates with less energy consumption than current HVAC systems. The control system employs a combination of modulated return air bypass, modulated capacity compressor, and modulating hot gas reheat to maintain proper interior space humidity, and temperature while maintaining adequate ventilation within the interior building space. The system employs feed forward control to prevent overheating the interior building space with reheat and also, once humidity requirements are met, resets low pressure limit settings at the exit of the evaporator to minimize use of reheat in the operation of the unit.
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