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COMMUNICATION PROTOCOL SYSTEM AND METHOD FOR A DISTRIBUTED-ARCHITECTURE HEATING, VENTILATION AND AIR CONDITIONING NETWORK

  • US 20100106325A1
  • Filed: 10/21/2009
  • Published: 04/29/2010
  • Est. Priority Date: 10/27/2008
  • Status: Active Grant
First Claim
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1. An HVAC data processing and communication network, comprising:

  • a demand unit coupled to a data bus and configured to provide a primary service having a maximum service capacity; and

    a subnet controller configured to send a demand message to said demand unit via said data bus instructing said demand unit to provide a portion of said maximum.

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