Communication protocol system and method for a distributed-architecture heating, ventilation and air conditioning network
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United States of America Patent
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Jan 8, 2013
Grant Date -
Apr 29, 2010
app pub date -
Oct 21, 2009
filing date -
Oct 27, 2008
priority date (Note) -
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Abstract
The disclosure provides an HVAC data processing and communication network and a method of manufacturing the same. In an embodiment, the network includes a demand unit and a subnet controller. The demand unit is coupled to a data bus and configured to provide a primary service having a maximum service capacity. The subnet controller is configured to send a demand message to the demand unit via the data bus instructing the demand unit to provide a portion of the maximum.
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