ENVIRONMENTAL CONTROL FOR HVAC SYSTEM

摘要

A system for controlling energy consumption in a building having a heating, ventilation and air-conditioning (HVAC) which includes using an external application to perform HVAC energy consumption optimization algorithms and other external energy control functions and transmit application control data to a building automation system (BAS), which in turn provides hardware level equipment control for the HVAC system. The external application evaluates equipment data received from the HVAC system by way of the BAS and processes these equipment data to provide application control data back to the BAS. The application control data are calculated to achieve a desired operating efficiency for the HVAC system.

主权项

1. A method for controlling an HVAC system, the method comprising:
configuring a building automation system to communicate with an external application; soliciting equipment data from the building automation system through instructions provided by the external application, the equipment data including real-time operating data of the HVAC system; generating application data with the external application, the application data including desired operating values for the HVAC system; providing the application data to the building automation system from the external application; in the event of a loss of communication between the building automation system and the external application, retaining the application data within the building automation system for at least an amount of time necessary to restore the communication; and during the loss of communication, controlling the HVAC system with the building automation system using the application data received before the loss of communication.