Systems and methods for controlling a variable gas valve
AssigneeCopeland Comfort Control LP
InventorsDaniel L. Furmanek, Ryan Jensen, John F. Broker
Life of this patent
Estimating the term…
Abstract
A gas valve assembly includes a gas valve and a control circuit. The gas valve is configured for variably controlling a flow of gas through the gas valve assembly. The control circuit includes a controller programmed to determine a first setting for the gas valve in response to a received commanded flow, adjust the first setting to a second setting based on a measured temperature when the measured temperature is one that may induce changes to the flow of gas through the gas valve assembly, and control the gas valve based on the second setting.
Claims21
A gas valve assembly comprising:
- a gas valve configured for variably controlling a flow of gas through the gas valve assembly;
- a control circuit including a controller programmed to:
- determine a first setting for the gas valve in response to a received commanded flow;
- adjust the first setting to a second setting based on a measured temperature when the measured temperature is one that may induce changes to the flow of gas through the gas valve assembly;
- and
- control the gas valve based on the second setting.
A gas-powered heating system comprising:
- a burner;
- a system controller;
- and
- a gas valve assembly coupled between a gas source and the burner, the gas valve assembly including:
- a gas valve to variably control a flow of gas through the gas valve assembly;
- and
- a control circuit including a controller communicatively coupled to the system controller, the controller programmed to:
- receive a commanded gas flow from the system controller;
- determine a first setting for the gas valve in response to the received commanded flow;
- adjust the first setting by an adjustment amount to a second setting based on a measured temperature when the measured temperature is one that may induce changes to the flow of gas through the gas valve assembly;
- and
- control the gas valve based on the second setting.
Dependencies are inferred from the claim text.