1
Peter Joseph Erickson, Cary Leen, Stan Zywicki, Eric Barton, David Schultz, Mohammad Aljabari: HVAC controller with diagnostic alerts. Honeywell International, Seager Tufte & Wickhem, April 7, 2015: US09002523 (14 worldwide citation)

An HVAC controller that monitors the performance of an HVAC system during its operating by comparing a monitored parameter value (e.g. delta T) to a pre-determined limit stored in the HVAC controller memory in order to determine if a performance limit has been violated. In some cases, the HVAC contr ...


2
Eric Barton, Cary Leen, Stan Zywicki: HVAC controller with utility saver switch diagnostic feature. Honeywell International, Seager Tufte & Wickhem, December 8, 2015: US09206993 (12 worldwide citation)

An HVAC controller may display a user query on the display of the HVAC controller, which queries the user as to whether a utility saver switch is installed and in use. The HVAC controller may take into account whether a utility saver switch is installed and in use when determining, logging and/or re ...


3
Cary Leen, Stan Zywicki, Robert J Schnell: HVAC control with comfort/economy management. Honeywell International, Seager Tufte & Wickhem, October 15, 2013: US08560127 (10 worldwide citation)

A programmable thermostat may be configured to control one or more pieces of HVAC equipment in accordance with a programmable schedule. The HVAC equipment may be capable of modifying a temperature of an inside space with at least a primary stage and an auxiliary stage. The programmable thermostat ma ...


4
Cary Leen, Stan Zywicki III, Eric Barton, David Schultz, Mohammad Aljabari: HVAC controller including user interaction log. Honeywell International, Seager Tufte & Wickhem, October 13, 2015: US09157647 (9 worldwide citation)

An HVAC controller is configured to log one more user interactions into a user interaction log stored in its memory such that at least some of the user interactions may be recalled from the user interaction log and displayed on the user interface of the HVAC controller in response to a request by a ...


5
Stan Zywicki, Cary Leen, Barbara Dean Henricks, Steve C Nichols, Jeffrey Holmquist, Jan Tesitel, David Schultz, Jaromir Cechak, Patrick Tessier: Method and system for configuring wireless sensors in an HVAC system. Honeywell International, Seager Tufte & Wickhem, November 8, 2016: US09488994 (7 worldwide citation)

An HVAC controller for controlling an HVAC system may be configured to enroll one or more wireless devices, and once one or more wireless devices are enrolled, to prompt the user to enter an identifier, a location, a device type and/or a function for one or more of the enrolled wireless devices. The ...


6
Cary Leen, Stan Zywicki III, Robert J Schnell: HVAC control with comfort/economy management. Honeywell International, Seager Tufte & Wickhem, May 9, 2017: US09645589 (4 worldwide citation)

A programmable thermostat may be configured to control one or more pieces of HVAC equipment in accordance with a programmable schedule. The HVAC equipment may be capable of modifying a temperature of an inside space with at least a primary stage and an auxiliary stage. The programmable thermostat ma ...


7
Kevin Graebel, Stan Zywicki III, Stephane Joseph Pierre Beland: Universal mount. Honeywell International, Seager Tufte & Wickhem, May 19, 2015: US09035270 (2 worldwide citation)

A mount for mounting an ultraviolet (UV) lamp assembly or other device to a duct wall of an HVAC system. The mount may have a base having a first side and a second side, an aperture extending through the base from the first side to the second side, one or more first mounting features, and one or mor ...


8
Steve C Nichols, Cary Leen, Jeffrey Boll, Stan Zywicki: Systems and methods for associating wireless devices of an HVAC system. Honeywell International, Seager Tufte & Wickhem, September 13, 2016: US09442500 (1 worldwide citation)

A building control network may have a first central device, a second central device and one or more peripheral devices. An illustrative method may include placing the second central device into an associate mode, and sending an associate command from a perimeter device to associate the perimeter dev ...


9
Cary Leen, Patrick Tessier, Stan Zywicki: Building controllers with local and global parameters. Honeywell International, Seager Tufte & Wickhem, April 7, 2015: US09002481 (1 worldwide citation)

A building controller is configured to designate one or more stored parameters as local or global. Parameters that are designated as global may be selectively communicated to remote devices and, parameters that are designated as local, may remain local to the building controller. In some instances, ...


10
Cary Leen, Stan Zywicki, Eric Barton: Auto test for delta T diagnostics in an HVAC system. Honeywell International, Seager Tufte & Wickhem, October 9, 2018: US10094585

An HVAC controller may be programmed to initiate a delta T test in response to a request received from a user. The user may initiate the delta T test at the HVAC controller or via a remote device. In some cases, the HVAC controller may be configured to automatically execute a delta T test for each v ...