公开(公告)号：US20240159409A1

公开(公告)日：2024-05-16

申请号：US18419407

申请日：2024-01-22

Applicant: Robert J. Mowris ,  James Lau

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F11/30 ,  F24F11/52

CPC classification number: F24F11/30 ,  F24F11/52 ,  F24F2110/10

Abstract: An occupancy fan control method to detect a Heating, Ventilating Air Conditioning (HVAC) fan is operating based on a fan-on duration control selected by a user and after a fan-on time delay selected by the user, providing at least one fan-on alarm message prior to overriding the fan-on duration control. The method further comprises monitoring an occupancy sensor signal to determine an occupancy in a conditioned space served by an HVAC system and after the fan-on time delay selected by the user, automatically overriding the fan-on duration control to save energy when the conditioned space is unoccupied. The overriding may comprise operating the HVAC fan based only on a thermostat call for cooling or heating, operating the HVAC fan for a non-zero time less time than the fan-on duration control, or operating the HVAC fan for a non-zero frequency less than the fan-on duration control.

公开(公告)号：US11879651B2

公开(公告)日：2024-01-23

申请号：US17958069

申请日：2022-09-30

Applicant: Robert J. Mowris ,  James Lau

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F1/00 ,  F24F11/46 ,  F24F11/52 ,  F24F11/77 ,  F24F120/10

CPC classification number: F24F11/46 ,  F24F11/52 ,  F24F11/77 ,  F24F2120/10

Abstract: A Heating, Ventilating Air Conditioning (HVAC) fan control method to detect an HVAC fan is controlled by at least one fan-on duration control selected by a user and provide at least one fan-on alarm message prior to overriding the at least one fan-on duration control. The method monitors an occupancy sensor signal to determine an occupancy in a conditioned space served by an HVAC system and automatically overrides the at least one fan-on duration control to save energy when the conditioned space is unoccupied. The overriding may comprise operating the HVAC fan based only on a thermostat call for cooling or a thermostat call for heating, operating the HVAC fan for less time than the at least one fan-on duration control selected by the user, and operating the HVAC fan for less frequency than the at least one fan-on duration control selected by the user.

公开(公告)号：US20240410606A1

公开(公告)日：2024-12-12

申请号：US18809050

申请日：2024-08-19

Applicant: Robert J. Mowris ,  James Lau

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F11/46 ,  F24F11/52 ,  F24F11/77 ,  F24F110/10 ,  F24F120/10

Abstract: An occupancy fan controller method to detect a Heating, Ventilating Air Conditioning (HVAC) fan is operating based on a fan-on duration control selected by a user and after a fan-on delay selected by the user, overriding the fan-on duration control. The method comprises monitoring an occupancy sensor signal to determine an occupancy in a conditioned space served by an HVAC system and automatically overriding the fan-on duration control to save energy when the conditioned space is unoccupied. The overriding may comprise waiting until after a fan-off delay, operating the HVAC fan in auto mode based only on a thermostat call for cooling or a thermostat call for heating, controlling an economizer damper to reduce or increase outdoor airflow, and operating the HVAC fan for a variable fan-off delay after the thermostat call for cooling or heating based on the duration of the thermostat call for cooling or heating.

公开(公告)号：US20230160586A1

公开(公告)日：2023-05-25

申请号：US18100399

申请日：2023-01-23

Applicant: Robert J. Mowris ,  John Walsh ,  James Lau

Inventor： Robert J. Mowris ,  John Walsh ,  James Lau

IPC: F24F8/192 ,  A61L9/22 ,  F24F11/50 ,  F24F11/32 ,  F24F11/63 ,  H01T23/00

CPC classification number: F24F8/194 ,  A61L9/22 ,  F24F11/32 ,  F24F11/50 ,  F24F11/63 ,  H01T23/00 ,  A61L2209/12 ,  A61L2209/14 ,  A61L2209/16 ,  A61L2209/111 ,  F24F2110/66

Abstract: The ionizer feedback control converts high-voltage signals to feedback signals to monitor the corresponding high-voltage signals and compares the feedback signals to a first specification to determine whether the feedback signals are within the first specification. The ionizer varies a frequency and a duty cycle of a digital signal to control an excitation signal for a step-up transformer and modulates the frequency and the duty cycle of a step-up transformer output voltage to consistently maintain the feedback signals within the first specification and maintain the high-voltage signals within a second specification to generate consistent ion concentrations over a range of electrical signal inputs. The microprocessor calculates and reports high-voltage signals, and ion concentrations based on feedback signals. The microprocessor monitors concentrations of Volatile Organic Compounds (VOCs) in an airflow serving the ionizer and adjusts the high-voltage signals and ion concentration when VOC concentrations are above a threshold.

公开(公告)号：US12066200B2

公开(公告)日：2024-08-20

申请号：US18419407

申请日：2024-01-22

Applicant: Robert J. Mowris ,  James Lau

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F11/00 ,  F24F11/30 ,  F24F11/52 ,  F24F110/10

CPC classification number: F24F11/30 ,  F24F11/52 ,  F24F2110/10

Abstract: An occupancy fan control method to detect a Heating, Ventilating Air Conditioning (HVAC) fan is operating based on a fan-on duration control selected by a user and after a fan-on time delay selected by the user, providing at least one fan-on alarm message prior to overriding the fan-on duration control. The method further comprises monitoring an occupancy sensor signal to determine an occupancy in a conditioned space served by an HVAC system and after the fan-on time delay selected by the user, automatically overriding the fan-on duration control to save energy when the conditioned space is unoccupied. The overriding may comprise operating the HVAC fan based only on a thermostat call for cooling or heating, operating the HVAC fan for a non-zero time less time than the fan-on duration control, or operating the HVAC fan for a non-zero frequency less than the fan-on duration control.

公开(公告)号：US12038204B2

公开(公告)日：2024-07-16

申请号：US18100399

申请日：2023-01-23

Applicant: Robert J. Mowris ,  James Lau

Inventor： Robert J. Mowris ,  John Walsh ,  James Lau

IPC: H01T23/00 ,  A61L9/22 ,  F24F8/192 ,  F24F11/32 ,  F24F11/50 ,  F24F11/63 ,  F24F110/66

CPC classification number: F24F8/194 ,  A61L9/22 ,  F24F11/32 ,  F24F11/50 ,  F24F11/63 ,  H01T23/00 ,  A61L2209/111 ,  A61L2209/12 ,  A61L2209/14 ,  A61L2209/16 ,  F24F2110/66

Abstract: The ionizer feedback control converts high-voltage signals to feedback signals to monitor the corresponding high-voltage signals and compares the feedback signals to a first specification to determine whether the feedback signals are within the first specification. The ionizer varies a frequency and a duty cycle of a digital signal to control an excitation signal for a step-up transformer and modulates the frequency and the duty cycle of a step-up transformer output voltage to consistently maintain the feedback signals within the first specification and maintain the high-voltage signals within a second specification to generate consistent ion concentrations over a range of electrical signal inputs. The microprocessor calculates and reports high-voltage signals, and ion concentrations based on feedback signals. The microprocessor monitors concentrations of Volatile Organic Compounds (VOCs) in an airflow serving the ionizer and adjusts the high-voltage signals and ion concentration when VOC concentrations are above a threshold.

公开(公告)号：US20230059157A1

公开(公告)日：2023-02-23

申请号：US17958069

申请日：2022-09-30

Applicant: Robert J. Mowris ,  John Walsh

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F11/46 ,  F24F11/77 ,  F24F11/52

Abstract: A Heating, Ventilating Air Conditioning (HVAC) fan control method to detect an HVAC fan is controlled by at least one fan-on duration control selected by a user and provide at least one fan-on alarm message prior to overriding the at least one fan-on duration control. The method monitors an occupancy sensor signal to determine an occupancy in a conditioned space served by an HVAC system and automatically overrides the at least one fan-on duration control to save energy when the conditioned space is unoccupied. The overriding may comprise operating the HVAC fan based only on a thermostat call for cooling or a thermostat call for heating, operating the HVAC fan for less time than the at least one fan-on duration control selected by the user, and operating the HVAC fan for less frequency than the at least one fan-on duration control selected by the user.

公开(公告)号：US11029061B2

公开(公告)日：2021-06-08

申请号：US16882222

申请日：2020-05-22

Applicant: Robert J. Mowris ,  John Walsh

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F13/30 ,  F24F11/38 ,  B05D1/00

Abstract: A method for sealing an economizer perimeter gap to reduce an uncontrolled excess outdoor airflow by applying a sealing material over or into the economizer perimeter gap between the economizer frame and a Heating, Ventilating, Air Conditioning (HVAC) system cabinet comprising: locating the economizer perimeter gap between the economizer frame and the HVAC system cabinet and applying a sealing material over or into the economizer perimeter gap. The sealing material is selected from the group consisting of: an adhesive tape sealant, an adhesive sealant, a mastic sealant, a caulking material, and a weatherstripping. The method comprises: disconnecting an electrical power to the HVAC system, removing an economizer hood, locating and cleaning the metal services on both sides of the gap between the economizer frame and the HVAC cabinet, applying the sealing material over or into the gap, reinstalling the economizer hood, and reconnecting the electrical power to the HVAC system.

公开(公告)号：US11460208B2

公开(公告)日：2022-10-04

申请号：US17526725

申请日：2021-11-15

Applicant: Robert J. Mowris ,  John M. Walsh

Inventor： Robert J. Mowris ,  John M. Walsh

IPC: F24F11/00 ,  F24F11/46 ,  F24F11/56 ,  F24F11/88 ,  F24F11/61 ,  F24F11/67 ,  F24F110/10

Abstract: Detecting a thermostat call for heating or cooling based on detecting a heat W or compressor Y signal is activated and energizing a fan signal output and operating a system fan/blower while the W or Y signal is activated and energizing the fan signal and operating the fan for a variable fan-off delay immediately after the W or Y signal is de-activated and de-energizing the fan signal and not operating the fan after the variable fan-off delay when a fan G signal is not activated. Detecting the fan G signal is activated and the W or Y signal is not activated indicating a fan-on duration control selected by a user, and energizing the fan signal and operating the fan while the fan G signal is activated and de-energizing the fan signal and not operating the fan and not providing the variable fan-off delay when the fan G signal is de-activated.

公开(公告)号：US20210199324A9

公开(公告)日：2021-07-01

申请号：US16565464

申请日：2019-09-09

Applicant: Robert J. Mowris ,  John Walsh

Inventor： Robert J. Mowris ,  John Walsh

IPC: F24F11/38 ,  F24F11/61 ,  F24F11/56 ,  F24F11/67 ,  F24F11/755

Abstract: A method for controlling a Heating, Ventilation, Air Conditioning (HVAC) fan based on at least one Fault Detection Diagnostic (FDD) output wherein a previously monitored HVAC parameter is compared to a current HVAC parameter, and if a fault is detected, and impacts energy efficiency performance, then the FDD output is used to perform at least one action selected from the group consisting of: turning off a fan accidentally left on, and determining and providing a variable fan-off delay at the end of a heating or cooling cycle to improve energy efficiency, where both actions are based on HVAC parameters including, for example: a heating cycle duration, a cooling cycle duration, a conditioned space temperature and the rate of change of the HVAC parameters with respect to time. The method may be embodied in a fan controller, forced air unit control board, thermostat, or fan motor.