Systems and methods for controlling a variable gas valve
AssigneeCopeland Comfort Control LP
InventorsJohn F. Broker, Ryan D. Jensen, Daniel L. Furmanek
Life of this patent
Estimating the term…
Abstract
A modulating gas valve assembly includes a modulating gas valve to variably control a flow of gas through the gas valve assembly and a control circuit. The control circuit includes a valve memory storing a calibration table for the modulating gas valve, and a controller communicatively coupled to the peripheral component. The calibration table includes a plurality of control settings for the modulating gas valve, each control setting being associated with a different gas flow rate. The controller is programmed to receive a command to open the gas valve, and to control the gas valve to a target control setting in the calibration table adjusted in accordance with a valve offset.
Claims20
A gas-powered heating system comprising:
- a burner;
- a peripheral component programmed to receive a valve offset;
- and
- a modulating gas valve assembly connected between a gas source and the burner, the gas valve assembly including:
- a modulating gas valve to variably control a flow of gas through the gas valve assembly;
- and
- a control circuit including a valve memory storing a calibration table for the modulating gas valve, and a valve processor communicatively coupled to the peripheral component, the calibration table including a plurality of control settings for the modulating gas valve, each control setting being associated with a different gas flow rate, the valve processor programmed to:
- receive a command to open the gas valve;
- and
- control the gas valve to a target control setting in the calibration table adjusted in accordance with the valve offset.
A modulating gas valve assembly comprising:
- a modulating gas valve to variably control a flow of gas through the gas valve assembly;
- and
- a control circuit including a valve memory storing a calibration table for the modulating gas valve, and a controller communicatively coupled to the peripheral component, the calibration table including a plurality of control settings for the modulating gas valve, each control setting being associated with a different gas flow rate, the controller programmed to:
- receive a command to open the gas valve;
- and
- control the gas valve to a target control setting in the calibration table adjusted in accordance with a valve offset.
Dependencies are inferred from the claim text.