Ademco Inc.

Honeywell International Inc.

Honeywell G.m.b.h.

Rolf Lee Strand

Peter M Anderson

Brent Chian

Timothy J Nordberg

Douglas D Bird

Bruce L Hill

John D Mitchell

Gregory Young

John T Adams

Frederick R Hazzard

Thomas M Johnson

Michael William Schultz

Travis J Read

Joseph Carlos Vargas

James A Odom

Timothy J Smith

Adam Myre

Daniel T Uhrich

Adam Foley

Paul Knauf

Ryan Strassburg

Donald C Kennedy

Luke A Piram

Brian C Krafthefer

Paul B Patton

Dipak J Shah

Ralph E Pasquarette

Rick M Solosky

John Evers

James H Krueger

Sybrandus Munsterhuis

Ronald Sorenson

Patrick Springman

Yury Millman

Tony Khosla

Heat pump controller

A water heater control system comprising an energy storage system electrically connected to a pilot valve operator and electrically isolated from a main valve operator. The energy storage system may be electrically connected to an ignition circuit. A thermoelectric device is in thermal communication with the pilot flame and electrically connected to a main valve operator. The water heater system may include a microcontroller configured to establish electrical communications between the device and the energy storage system, the pilot valve operator, and the main valve operator. The microcontroller may be configured to recognize a call for main burner operation, and may also be configured to check an available voltage of the energy storage system against a setpoint. The microcontroller may establish pilot flame operation with or without main burner operation, depending on whether a call for heat or recharging of the energy storage system is required.

Control system for an intermittent pilot water heater

A locally powered intermittent pilot combustion controller may include an igniter, a thermal electric and/or photoelectric device that produces an electrical signal having power when exposed to a flame, and a local power source for providing power when the thermal electric and/or photoelectric device is not exposed to a flame. In some cases, the intermittent pilot combustion controller may include a memory for storing information about an ignition sequence for igniting a pilot flame, and a controller coupled to the memory. The controller may be configured to initiate the ignition sequence of the pilot flame using information stored in the memory, determine whether the ignition was successful by monitoring the electrical signal produced by the thermal electric and/or photoelectric device, and adjust the information stored in the memory based on whether the ignition sequence completed successfully.

Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system

A water heater control system the water heater system comprising a rechargeable and non-rechargeable power source. In one or more examples, a controller such as a microcontroller of the water heater system is configured to receive power from the non-rechargeable power source and does not receive power from the rechargeable power source. Various other components of the water heater system are configured to receive power from the rechargeable power source. The system may comprise an energy storage system electrically connected to a pilot valve operator and electrically isolated from a main valve operator. The controller may be configured to recognize a call for main burner operation and may also be configured to check an available voltage of the energy storage system against a setpoint.

Burner control system

A flame powered intermittent pilot combustion controller may include a first power source and a second power source separate from the first power source, a thermal electric and/or photoelectric device, an igniter and a controller. The thermal electric and/or photoelectric device may charge the first power source when exposed to a flame. The controller and the igniter may receive power from the first power source when the first power source has sufficient available power, and may receive power from the second power source when the first power source does not have sufficient available power.

Method and system for starting an intermittent flame-powered pilot combustion system

An illustrative HVAC controller may include a communication module for wirelessly communicating with a network and wiring terminals for receiving a wired connection to a remote temperature sensor that is situated remote from the HVAC controller and in a living space of the building. A controller may be operably coupled to the communication module and the wiring terminals and may be configured to implement a thermostat control algorithm to generate one or more control signals, wherein the one or more control signals are provided by a wired connection to the HVAC system to control one or more HVAC components of the HVAC system. The thermostat control algorithm may be configured to compare a sensed temperature received from the remote temperature sensor via the wiring terminals and a temperature setpoint received from the server via the network.

HVAC control with a remote user interface and a remote temperature sensor

A water heater may be configured to detect a possible main gas valve non-closure condition in which the sensed water temperature continues to rise while a thermopile signal reaches a stable state. When the possible main gas valve non-closure condition is detected, the controller may be configured to toggle the main gas valve ON and determine whether the thermopile signal from the thermopile changes from the stable state or not by at least a predetermined amount.

Method for detecting a non-closing water heater main gas valve

A remote water heater monitoring system is configured to communicate with a plurality of client water heaters over a network. The system processes received data related to the operation of the plurality of client water heaters and identifies one or more baseline trends over time related to water heater performance and/or water heater reliability using the received data from one or more of the client water heaters and identifies one or more abnormalities in the operation of a particular one of the client water heaters based on the baseline trends. An alert is generated for one or more of the abnormalities in the operation of the particular one of the client water heaters and is associated with a corresponding client account.

Cloud-based analytics for water heaters

A system and approach for addressing modules on a platform bus that may incorporate a master module and one or more slave modules. The platform bus may run through sub-base connectors that interlock modules together on a rail. Addressing of the modules may occur automatically and dynamically in that the master module may have a first address by default, and a first slave module adjoining the master module may be assigned a second address. A second slave module adjoining the first slave module, if there is one, may be assigned a third address. Each of the other slave modules, adjoining a preceding slave module assigned an address, may be assigned a next address after an address assigned to a preceding slave module. Addresses may be assigned in a numerical order to each module based on a physical position of the respective module on a rail.

Module auto addressing in platform bus

Methods and systems for operating a water heater to limit the effects of stacking in a water heater tank are disclosed. In some cases, the water heater controller may determine a rate of change of the water temperature in the water heater tank. If the rate of change exceeds a threshold value, the controller may adjust the water heater temperature set point downward to help reduce stacking in the water heater. In some cases, the water heater temperature set point may be returned to the original water heater temperature set point when stacking is no longer likely to be of a concern. In one illustrative embodiment, the controller may track the time that the heater of the water heater is in the 'on' state, or the time that the heater is in the 'off' state, during subsequent heating cycles. The controller may then compare the &#x201c;on&#x201d; time or the &#x201c;off&#x201d; time to respective recovery threshold times. If the &#x201c;on&#x201d; time or the &#x201c;off&#x201d; time exceeds its respective recovery threshold time, then the controller may adjust the set point toward the original water heater temperature set point, sometimes in an incremental manner.

Water heater stacking detection and control

Growing community of inventors

Crystal, MN, United States of America

Rolf Lee Strand