Emerson Electric Company

Copeland Comfort Control LP

Sit Manufacturing N.a. S.a. De C.v.

Thomas P Buescher

Daniel L Furmanek

Thomas J Fredricks

Rishi Siravuri

Jeffrey N Arensmeier

Frank S Wallis

Donald E Donnelly

Bradley C Zikes

Gregory Edward Sisk

Randy T Ruiz

Michael Somorov

Timothy E Reitz

Charles P Ketterer

Gregory E Sisk

Richard E Welch

Ryan Jensen

John F Broker

Donald L Blessing

Richard Allen Miu

Lawrence J Brazis

John M Bronson

Christina M Gillam

Wayne A Koopman

John E Kopp

Paul E Reinhardt

Jacob Harris

Vince Fargo

Greg Sisk

Vincent P Fargo

Donald R Shaw, Iii

A control for a gas fired pool heater is configurable to operate at either a first voltage or a second voltage higher than the first voltage. The control includes an input voltage measurement circuit and an automatic voltage select circuit. The input voltage measurement circuit is configured to be operable for measuring an input line voltage to determine whether the gas fired pool heater unit is connected with the first voltage or the second voltage. The automatic voltage select circuit is configured to be operable for configuring the control for the correct input line voltage as measured by the input voltage measurement circuit.

Self-configuring ignition controls

The present disclosure relates to controls and related methods for mitigating liquid (e.g., compressor refrigerant, etc.) migration and/or floodback.

Mitigating compressor liquid migration and/or floodback using suction temperature sensor and/or liquid level sensor

Exemplary embodiments are disclosed that include multi-voltage contactors, controls, and related methods.

Multi-voltage contactors, controls, and related methods

Exemplary embodiments are disclosed of contactors with data-based preventive maintenance replacement indicators and related methods for indicating that relay contact(s) should be replaced.

Redundant contactors with data-based preventive maintenance replacement indicators

Controls and related methods for mitigating liquid migration and/or floodback

Multi-voltage contactors and controls and related methods

A processor for a controller of a water heater is configured to receive water heater control parameters and an output from a sensor indicating a measured temperature of water in the water heater. The processor is also configured to determine whether to enter an anti-stacking control mode or to enter a demand anticipation control mode. In the anti-stacking control mode the processor is configured to initiate a call for heat when the measured temperature reaches a trigger temperature, calculate a burner on delay value and set a second timer with the calculated value, and calculate a reduced activation time. In the demand anticipation control mode the processor is configured to increase the variable offset based on a frequency of the demand anticipation control mode being activated, initiate a call for heat, and control, based on the reduced activation time or the increased offset value, the burner.

Temperature control for gas water heaters and related methods

A system and method of operating a gas fuel valve control circuit are disclosed. The gas valve control circuit includes a gas valve assembly configured to control a flow of a fuel gas to a load and a switch assembly including a switch in each leg of a plurality of legs of a power supply to the gas valve assembly. The switch assembly is configured to supply power and a return to the gas valve assembly in a first position and to open the plurality of legs of the power supply to the gas valve assembly in a second position. The switch assembly is configured to indicate a position of the switch assembly.

Gas valve control system for a water heater

A system and method of operating a water heater controller that includes a powered vent electronic control circuit including a controller configured to control an operation of heating device having a powered draft inducer, a gas valve assembly configured to control a flow of a fuel gas to a burner of a heating device, and a switch assembly including a switch in each leg of a plurality of legs of a power supply to the gas valve assembly, the switch assembly configured to supply power and a return to the gas valve assembly in a first position and to open the plurality of legs of the power supply to the gas valve assembly in a second position, the switch assembly configured to indicate a position of the switch assembly to the controller.

A valve system includes a motor, a first valve, a second valve, and a controller. The first valve is connected to the motor shaft and is rotatable to an open position, in which fluid flows through a first channel, and a close position, in which fluid is prevented from flowing through the first channel. The second valve is connected to the motor shaft and is rotatable to an open position, in which fluid flows through a second channel from a first end to a second end, and to a close position, in which fluid is prevented from flowing through the second channel. The controller is connected to the motor and can sequentially actuate the first valve and the second valve to create at least a first, second, third, and fourth position.

System for fluid pump down using valves

An automatic pilot lighting system for unattended automatic lighting of a standing pilot may include a powered (e.g., battery powered, etc.) circuit. The powered circuit may include an analog timer circuit including a timer switch. A spark ignitor may be coupled with the timer switch. A temperature knob pilot momentary switch may be coupled with the timer switch. An ON/OFF switch may be coupled with the temperature knob pilot momentary switch and the timer switch. The ON/OFF switch may be configured to be operable for selectively disabling and enabling a power source. The analog timer circuit may be configured to be selectively activatable for applying voltage from the power source via the ON/OFF switch for pilot hold voltage and spark ignition for an amount of time sufficient to allow for unattended automatic lighting of the standing pilot and sufficient voltage generation to support standalone operation.

Automatic pilot lighting systems

A system and method for controlling a water heater that operates according to a voltage supply includes a temperature sensor, mounted on at least one of a temperature and pressure (T&P) valve of the water heater and a hot water line of the water heater, that generates a temperature signal corresponding to a first temperature of the at least one of the T&P valve and the hot water line. A control module mounted on the water heater includes a switching module that receives the voltage supply and outputs the voltage supply to the water heater. The voltage supply passes at least one of through and adjacent to the control module. The control module determines a second temperature of water within the water heater based on the temperature signal and selectively actuates the switching module to turn on and turn off the voltage supply to the water heater based on the second temperature.

Water heater control using external temperature sensor

A water heater includes an electrical junction box that receives a voltage supply. The electrical junction box includes at least one cover plate for providing access to an internal portion of the water heater. The voltage supply passes through the at least one cover plate and connects to internal wiring of the water heater. A method for providing a control module on the water heater includes routing service wiring for providing the voltage supply to the water heater into an electrical connection portion of the control module, routing the internal wiring of the water heater into the electrical connection portion of the control module, and connecting the service wiring to the internal wiring of the water heater within the electrical connection portion of the control module.

Smart energy controlled water heater

A control system for controlling a gas powered water heater includes a thermoelectric generator to provide electrical power at a first voltage, a valve control system to selectively hold a main gas valve in an open position, a valve pick system to selectively pick the main gas valve from a closed position to the open position using the electrical power at the first voltage, and a power converter. The controller is electrically powered by a boosted electrical power at the second voltage from the power converter. The controller is communicatively coupled to the valve control system, the valve pick system, and the safety system. The controller is configured to control operation of the main burner and the main gas valve using the valve control system, the valve pick system, and the safety system to provide water heated to substantially a setpoint temperature.

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Webster Groves, MO, United States of America

Thomas P Buescher