Heating, ventilation, and air conditioning management system and method
AssigneeJPMorgan Chase Bank, N.A.
InventorBenjamin Trent Burton
Life of this patent
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Abstract
Systems and methods of controlling a heating, ventilating, and air conditioning system are provided that operate according to signals returned from return air temperature sensors as well as the supply air temperature sensors. Using predetermined temperature setpoints, return temperature information, and supply temperature information, the HVAC system is configured to maintain the temperature of a room first, by the use of its cooling valve, and second and only when the capacity of the cooling valve has peaked, by use of the fan. The presently disclosed improved HVAC system operates more efficiently by avoiding unit loading hopping and minimizing power consumption.
Claims16
A method for configuring a heating, ventilation, and air conditioning (HVAC) system, the system including at least one HVAC unit, each unit including a control circuit, the method comprising:
- receiving a return air temperature signal at the control circuit of the at least one HVAC unit;
- receiving a supply air temperature signal at the control circuit of the at least one HVAC unit;
- generating a first cooling valve drive signal based on a comparing of the return temperature signal and a return setpoint temperature;
- generating a second cooling valve drive signal based on a comparing of the supply temperature signal and a supply setpoint temperature;
- controlling a fan and a cooling valve of the at least one HVAC unit based at least on the received return air temperature signal, the received supply air temperature signal, a return setpoint temperature, and a supply setpoint temperature, wherein controlling comprises controlling the cooling valve to increase the cooling valve's water output based on comparing the first cooling valve drive signal and the second cooling valve drive signal.
A heating, ventilation, and air conditioning (HVAC) system, the system comprising:
- at least one HVAC unit, each HVAC unit including:
- at least one fan;
- at least one cooling valve;
- a processor, said processor coupled to the least one fan and the at least one cooling valve, said processor, said processor is adapted to execute instructions to perform the following:
- receiving a return air temperature signal at the control circuit of the at least one HVAC unit;
- receiving a supply air temperature signal at the control circuit of the at least one HVAC unit;
- generating a first cooling valve drive signal based on a comparing of the return temperature signal and a return setpoint temperature;
- generating a second cooling valve drive signal based on a comparing of the supply temperature signal and a supply setpoint temperature;
- controlling the at least one fan and the at least one cooling valve of the at least one HVAC unit based at least on the received return air temperature signal, the received supply air temperature signal, a return setpoint temperature, and a supply setpoint temperature, wherein controlling comprises controlling the at least one cooling valve to increase the at least one cooling valve's water output based on comparing the first cooling valve drive signal and the second cooling valve drive signal.
Dependencies are inferred from the claim text.